{"title":"Proline X Performance Optimized Series Enclosures","description":"\u003cdiv class=\"ai-collection-block\"\u003e\n\u003ch2\u003eWhat Performance Optimized Means\u003c\/h2\u003e\n\u003cp\u003ePerformance Optimized is a series designation within the Proline X lineup that indicates the enclosure is tuned for efficiency and output rather than a balanced or compact profile. Internal volume, port tuning, cabinet dimensions, and baffle cutout are all matched to the exact woofer the enclosure is built for. These boxes are built to extract maximum SPL from a given driver and amplifier combination rather than offering a universal fit across driver sizes.\u003c\/p\u003e\n\u003ch3\u003eDriver-Matched Internal Volume and Port Tuning\u003c\/h3\u003e\n\u003cp\u003eEach enclosure in the Performance Optimized Series is built around the acoustic requirements of a specific driver diameter. Internal airspace, port length, and port diameter are calculated for that woofer, not adapted from a shared template. The enclosure is working with the driver's Thiele-Small parameters rather than against them, which produces more output for the same amplifier power compared to a general-purpose box of similar construction.\u003c\/p\u003e\n\u003ch3\u003eMachined Baffle Cutout for Exact Driver Fit\u003c\/h3\u003e\n\u003cp\u003eThe baffle cutout on every Performance Optimized enclosure is machined to the specific driver it is built for. This is not a universal opening sized to accommodate the widest range of woofers. The cutout diameter and mounting hole pattern match the driver exactly. Fit is tight and intentional, with the mounting surface seated flush against the driver basket with no gap.\u003c\/p\u003e\n\u003ch3\u003eDado and V-Groove Construction\u003c\/h3\u003e\n\u003cp\u003eCabinet panels are joined using Dado and V-Groove cuts, which create interlocking channels at each panel intersection before bonding. This mechanical lock adds shear resistance beyond what adhesive alone provides and keeps panels aligned during assembly and curing. In a high-output enclosure this matters. Sustained power and driver excursion create repeated internal pressure cycles that stress panel joints over time. Dado and V-Groove joinery maintains cabinet integrity and internal volume accuracy under those conditions.\u003c\/p\u003e\n\u003ch2\u003eSealed and Ported Configurations\u003c\/h2\u003e\n\u003cp\u003eThe Performance Optimized Series is available in both sealed and ported enclosure types across 8, 10, 12, and 15 inch driver sizes in single and dual woofer layouts. Sealed enclosures deliver controlled transient response and predictable low-frequency rolloff. Ported enclosures use a tuned port to increase low-frequency efficiency, producing more output at the port tuning frequency for the same amplifier power. If maximum output is the goal and install space permits, ported is the stronger choice in this series.\u003c\/p\u003e\n\u003ch2\u003eBuild Specification and Intended Use\u003c\/h2\u003e\n\u003cp\u003eThe Performance Optimized Series ships without prewiring or rubber feet. This is a deliberate specification. The series is built for output-focused installs where the installer is handling placement, wiring, and tuning as part of a wider system build. Ported Performance Optimized enclosures also ship without polyfill, because fill shifts the port tuning the enclosure was designed around. Sealed Performance Optimized enclosures ship with polyfill pre-installed, sized to the cabinet volume, because in a sealed alignment the fill is part of the design rather than a variable. This series is the correct choice when efficiency and SPL output are the primary build criteria and a fully custom build is not in scope.\u003c\/p\u003e\n\u003caside class=\"ai-callout-cta\"\u003e\n\u003cp class=\"ai-callout-label\"\u003eNeed Help Matching an Enclosure to Your Driver?\u003c\/p\u003e\n\u003cp\u003eTalk to an SQ-judge tech directly. We'll confirm fitment, port tuning, and amplifier match before you commit to the build.\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"ai-contact-phone\"\u003e931-563-5151\u003c\/span\u003e\u003cspan class=\"ai-contact-divider\"\u003e|\u003c\/span\u003e\u003cspan class=\"ai-contact-email\"\u003econtact@audiointensity.com\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/aside\u003e\n\u003cdiv class=\"ai-faq-section\"\u003e\n\u003ch2\u003eFrequently Asked Performance Optimized Series Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat's the difference between Performance and Performance Optimized?\u003c\/h3\u003e\n\u003cp\u003eThe Performance Series uses universal tuning targets that work across multiple drivers in the same diameter. The Performance Optimized Series tunes each enclosure to a specific driver, with internal volume, port dimensions, and baffle cutout matched to that woofer's exact parameters. Performance Optimized produces more output and better acoustic loading for the specific driver it's built for. Performance is more flexible if you might swap drivers later.\u003c\/p\u003e\n\u003ch3\u003eWill a Performance Optimized enclosure work with a different driver than the one it's labeled for?\u003c\/h3\u003e\n\u003cp\u003eTechnically yes, mechanically no. The baffle cutout is machined to the labeled driver's exact mounting dimensions, so a different driver may not fit cleanly without modification. The internal volume and port tuning are also calculated for the labeled driver, so swapping in a different woofer puts the enclosure outside its design parameters. If you want a Proline X enclosure that supports multiple drivers in the same size class, the standard Performance Series is the better choice.\u003c\/p\u003e\n\u003ch3\u003eWhy don't these enclosures include polyfill, prewiring, or rubber feet?\u003c\/h3\u003e\n\u003cp\u003eEach is a deliberate omission for output-focused installs. Polyfill alters port tuning accuracy in ported configurations. Prewiring locks the installer to a specific impedance configuration before the wiring strategy is set. Rubber feet aren't relevant when the enclosure is being mounted in a vehicle. The Performance Optimized Series ships ready for the installer to finish in line with the system's specific tuning and wiring requirements.\u003c\/p\u003e\n\u003ch3\u003eHow do I choose between sealed and ported in this series?\u003c\/h3\u003e\n\u003cp\u003eSealed if accuracy and tight transient response are the priority, and if the available install space favors a smaller cabinet. Ported if maximum output at the tuning frequency is the priority, and if the install has the space to accommodate a larger box. Both alignments are properly tuned to the specific driver in this series, so the choice comes down to build goals rather than enclosure quality.\u003c\/p\u003e\n\u003ch3\u003eWhat construction does Proline X use?\u003c\/h3\u003e\n\u003cp\u003eCabinets are built from Langboard Elite MDF (48.5 lb\/ft³ density, 200 psi internal bond strength), the highest-grade MDF available for enclosure construction. Panels are joined with Dado and V-Groove cuts that mechanically interlock at each intersection before bonding. Every enclosure is CNC-cut on ShopSabre routers in our Tullahoma, Tennessee facility. Not imported, not outsourced.\u003c\/p\u003e\n\u003ch3\u003eDoes this series include the screws to mount the driver?\u003c\/h3\u003e\n\u003cp\u003eScrews are not supplied with Performance Optimized enclosures. Driver mounting hardware varies by manufacturer (machine screws into T-nuts, wood screws into baffle, etc.) and the right hardware depends on the specific driver being mounted. Use the hardware specified by the driver manufacturer.\u003c\/p\u003e\n\u003ch3\u003eWhat measurements should I confirm before ordering?\u003c\/h3\u003e\n\u003cp\u003eConfirm driver mounting depth and terminal clearance. Use the downloadable cutout template to verify that the faceplate and mounting holes match your driver. If your driver has a nonstandard basket or offset mounting holes, measure the bolt circle and overall flange diameter, and send those dimensions to support. That prevents surprises at install and avoids returns due to fitment mismatch.\u003c\/p\u003e\n\u003ch3\u003eWhy do you ship without mounting hardware and terminals?\u003c\/h3\u003e\n\u003cp\u003eWe leave hardware out because installers use a wide range of fasteners and terminal styles depending on the driver and vehicle. Supplying a universal kit can create more problems than it solves. Instead, we offer a recommended hardware bundle that includes gasket tape, terminal cups, stainless screws, and lock washers. Add the bundle at checkout, and the product page will show the exact contents and suggested torque values for common driver baskets.\u003c\/p\u003e\n\u003ch3\u003eHow do you control port velocity, and why does it matter?\u003c\/h3\u003e\n\u003cp\u003ePort velocity is measured during bench testing at target SPL using calibrated sensors. High port velocity causes audible port noise and reduces linear output at high drive levels. We size the port area and length to keep the velocity below thresholds appropriate for the driver and target output. If you plan extreme SPL runs, request the measured port velocity plots for your driver and enclosure pairing so you can confirm the design meets your goals.\u003c\/p\u003e\n\u003ch3\u003eCan I request a custom finish or a different cutout?\u003c\/h3\u003e\n\u003cp\u003eCustom faceplate finishes and alternate cutouts are available for production runs. Provide interior color samples or a driver cutout drawing, and we will quote lead time and cost. For one-off custom work, expect a short lead time for template approval and a small tooling fee for nonstandard cutouts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"proline-x-performance-optimized-enclosure-for-ground-zero-radioactive-iridium","title":"Proline X Performance Optimized Enclosures for Ground Zero Radioactive \/ Iridium","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eCustom-made to fit Ground Zero Radioactive and Iridium Series\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTake your Ground Zero subwoofers up a notch with the Proline X enclosures built to maximize your Ground Zero Radioactive or Iridium series subwoofer performance. These enclosures are built to spec, making sure each enclosure has the right airspace for your subwoofer. All of these enclosures are ported, and carpeted with grey trunk liner. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThese enclosures are Ground Zero branded to match the subwoofers. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhy Proline X?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eProline X relies on over 30 years of industry experience and leadership to create high-quality subwoofer enclosures. Based in Northern California as a subsidiary of Audio Intensity, Proline X products are American-Made and a veteran employer.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eEnclosures are CAD optimized, precision CNC cut, and assembled by hand with stringent quality control throughout assembly to completion. You won't find better boxes for the price anywhere.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhy Ground Zero?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cem\u003eRADIOACTIVE\u003c\/em\u003e line offers a wide range of exceptional highly efficient speakers and subwoofers for daily and SPL use. During the development, GROUND ZERO focused especially on natural and dynamic audio reproduction of digitally compressed music. Apart from some powerful amplifiers, the line contains extremely small amplifiers for limited-space environments.\u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003cp\u003eRepresenting the entry-level of GROUND ZERO, the \u003cem\u003eIRIDIUM\u003c\/em\u003e line offers a lot of useful features and an amazing performance. The range contains a variety of affordable amplifiers, speakers, and subwoofers for daily use and for SPL purposes. These are available as single drivers for custom-built applications as well as in loaded passive and active enclosures.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Single 10\" Ported","offer_id":40315793932377,"sku":"PO10-P GZ","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Single 12\" Ported","offer_id":40315793965145,"sku":"PO12-P GZ","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Dual 10\" Ported","offer_id":40315793997913,"sku":"PO10D-P GZ","price":269.99,"currency_code":"USD","in_stock":true},{"title":"Dual 12\" Ported","offer_id":40315794030681,"sku":"PO12D-P GZ","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/proline-x-performance-optimized-enclosures-for-ground-zero-radioactive-iridiumsubwoofer-enclosuresproline-x-238635.jpg?v=1761969133"},{"product_id":"proline-x-performance-optimized-enclosure-for-jl","title":"Proline X - Performance Optimized Enclosure for JL 12 W0\/W1\/W3","description":"\u003cp\u003eThe Proline X Performance Optimized Enclosure is revolutionizing the way you experience audio. Engineered with precision and designed for peak performance, this enclosure is the perfect companion for your JL 12 W0\/W1\/W3, delivering a truly immersive sound experience.\u003c\/p\u003e\n\u003cp\u003eConstructed with durability and top-quality materials in mind, the Proline X ensures longevity and robustness, allowing you to enjoy uninterrupted audio sessions. Say goodbye to compromised performance and hello to consistent, high-quality sound.\u003c\/p\u003e\n\u003cp\u003eWhat sets the Proline X apart from the competition? Let's dive into its key features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Design:\u003c\/strong\u003e The Proline X is specifically designed to fit your JL 12 W0\/W1\/W3 perfectly, ensuring optimal performance and sound quality. No more worries about compatibility issues or substandard audio output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Sound:\u003c\/strong\u003e Immerse yourself in your favorite tunes with the Proline X. This enclosure enhances the audio experience, bringing crisp highs and deep lows to life. Every note is delivered with unparalleled clarity, allowing you to fully appreciate the power of your JL 12 W0\/W1\/W3.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExperience audio excellence without compromising on style. The Proline X boasts a sleek design that seamlessly blends into your existing setup, adding a touch of sophistication to your space.\u003c\/p\u003e\n\u003cp\u003eUpgrade your audio game today with the Proline X Performance Optimized Enclosure and enjoy a listening experience that will truly blow you away. Hear your music the way it was meant to be heard - with unrivaled clarity, precision, and power.\u003c\/p\u003e\n\u003cp\u003eLook no further if you're searching for a durable and reliable enclosure for your JL 12 W0\/W1\/W3. The Proline X is crafted to enhance your audio setup and deliver a sound experience like no other.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 10\" x 16\" x 14\"\u003c\/li\u003e\n\u003cli\u003eWeight: 20 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInvest in the Proline X today and take your audio experience to new heights.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":40561592729689,"sku":"PO12-P JL","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/proline-x-performance-optimized-enclosure-for-jl-12-w0w1w3subwoofer-enclosuresproline-x-220360.jpg?v=1761969957"},{"product_id":"proline-x-performance-optimized-enclosure-for-jl-10-w0-w1-w3","title":"Proline X - Performance Optimized Enclosure for JL 10 W0\/W1\/W3","description":"\u003cp\u003eUpgrade your car's audio system with the Proline X - the ultimate performance-optimized enclosure designed specifically for JL 10 W0\/W1\/W3 subwoofers. Experience a new level of audio quality and performance that will redefine your driving experience. The Proline X is engineered with precision and constructed using superior materials to deliver unparalleled sound quality. Its robust design ensures optimal sound output, providing crystal-clear audio with deep, impactful bass. Immerse yourself in rich, detailed sound and feel the music come alive. This enclosure is built to last, with durable and reliable construction.\u003c\/p\u003e\n\u003cp\u003eThe Proline X is meticulously crafted with high-quality materials, providing exceptional durability and keeping your subwoofers safe and secure even during intense audio sessions. You can trust the Proline X to withstand the test of time and deliver consistent, high-quality performance. Key Features: - Optimal Sound Quality: The Proline X is meticulously engineered to create the perfect environment for your JL 10 W0\/W1\/W3 subwoofers. Its robust design and superior materials enhance sound output, ensuring crystal-clear audio with deep, impactful bass. - Durable and Reliable: Crafted with care, the Proline X is built to last. Its solid construction and high-quality materials provide exceptional durability, keeping your subwoofers safe and secure even during the most intense audio sessions.\u003c\/p\u003e\n\u003cp\u003eWith easy installation and compatibility with JL 10 W0\/W1\/W3 subwoofers, the Proline X is the perfect addition to your \u003ca href=\"https:\/\/audiointensity.com\/blogs\/news\/car-audio-system-tuning-101\" rel=\"noopener\" target=\"_blank\"\u003ecar's audio system\u003c\/a\u003e. Elevate your driving experience and enjoy your favorite music the way it's meant to be heard - with unparalleled clarity, depth, and richness. Don't settle for average audio. Upgrade to the Proline X today and transform your car's sound system into a powerhouse of immersive sound. Drive with confidence, knowing that you have the best enclosure for your JL 10 W0\/W1\/W3 subwoofers. Specifications: - Compatible with JL 10 W0\/W1\/W3 subwoofers Experience the Proline X difference and elevate your audio experience to new heights.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":40561595940953,"sku":"PO10-P JL","price":219.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/proline-x-performance-optimized-enclosure-for-jl-10-w0w1w3subwoofer-enclosuresproline-x-221719.jpg?v=1761969961"},{"product_id":"proline-x-single-10-ported-system-loaded-prodigy-nb2","title":"Proline X Single 10\" Ported System | Loaded with Prodigy NB2","description":"\u003cstyle\u003e\n.pl-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#cbd5e1;max-width:1100px;margin:0 auto;background:#020617;}\n.pl-wrap *{box-sizing:border-box;}\n.pl-hero{background:linear-gradient(135deg,#020617 0%,#2e1065 100%);padding:54px 36px;text-align:center;color:#fff;}\n.pl-hero 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h2{font-size:1.7em;}.pl-section,.pl-enc,.pl-cta,.pl-hero{padding-left:20px;padding-right:20px;}}\n\u003c\/style\u003e\n\u003cdiv class=\"pl-wrap\"\u003e\n\n\u003cdiv class=\"pl-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Series Enclosure for the Prodigy NB2-10D4\u003c\/h2\u003e\n\u003cp\u003eCut and tuned for the Prodigy NB2-10D4\u003c\/p\u003e\n\u003cdiv class=\"pl-badges\"\u003e\n\u003cspan class=\"pl-badge\"\u003eV-Groove and Dado\u003c\/span\u003e\n\u003cspan class=\"pl-badge\"\u003eLangboard Elite MDF\u003c\/span\u003e\n\u003cspan class=\"pl-badge\"\u003e1.20 cu ft Net\u003c\/span\u003e\n\u003cspan class=\"pl-badge\"\u003eFits Prodigy NB2-10D4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-stats\"\u003e\n\u003cdiv class=\"pl-stat\"\u003e\n\u003cspan class=\"n\"\u003e1.20\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pl-stat\"\u003e\n\u003cspan class=\"n\"\u003e33 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eport tuning\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-section\"\u003e\n\u003ch3\u003eBuilt Around the Prodigy NB2-10D4\u003c\/h3\u003e\n\u003cp\u003eNothing about this box is generic. Every layer is cut to the NB2-10D4's 33 Hz ported alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-section\"\u003e\n\u003ch3\u003eNet Volume, Not Gross\u003c\/h3\u003e\n\u003cp\u003eWe build this cabinet at \u003cstrong\u003e1.20 cubic feet net\u003c\/strong\u003e. The volume quoted is true net internal airspace, measured after the walls, bracing and driver displacement are accounted for.\u003c\/p\u003e\n\u003cdiv class=\"pl-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eTrue net, not marketing net.\u003c\/strong\u003e Internal volume is calculated by summing\neach CNC cut layer's opening, not estimated from external dimensions minus wall thickness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-section\"\u003e\n\u003ch3\u003eTuned to 33 Hz\u003c\/h3\u003e\n\u003cp\u003eThis is a vented build. Port length and area set the system response, not box volume\nalone. We tune this cabinet to \u003cstrong\u003e33 Hz\u003c\/strong\u003e in 1.20 cubic feet net.\nBelow tuning the driver unloads, which is why the port is sized to the volume rather\nthan dropped in to fit the panel.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-section\"\u003e\n\u003ch3\u003eProline X Performance Optimized Series Construction\u003c\/h3\u003e\n\u003cp\u003eThis enclosure is cut with V-groove and dado joinery on our ShopSabre routers from Langboard Elite 3\/4 inch MDF,\na dense 48.5 lb\/ft³ board with a 200 psi internal bond and 410,000 psi MOE.\nThe panels are V-grooved and folded on the seam, then dadoed where the internal bracing lands, so every joint is a mechanical lock rather than a glue line under load.\u003c\/p\u003e\n\u003cdiv class=\"pl-grid\"\u003e\n\u003cdiv class=\"pl-card\"\u003e\n\u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n\u003cp\u003eProline X ABS and carbon fiber composite cup with stainless hardware and copper ring terminals, pre-wired internally with \u003cstrong\u003e12 gauge OFC\u003c\/strong\u003e. No CCA anywhere in the build.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pl-card\"\u003e\n\u003ch4\u003eFinished to Match\u003c\/h4\u003e\n\u003cp\u003eThe shell is wrapped in plush black carpet. Built one at a time in Tullahoma, Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-section\"\u003e\n\u003ch3\u003eEnclosure Only or Loaded\u003c\/h3\u003e\n\u003cp\u003eOrder the enclosure bare and mount your own NB2-10D4, or order it loaded and we mount the driver, dress the wiring and ship it ready to bolt in.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-cta\"\u003e\n\u003ch3\u003eCut for the Driver, Not the Catalog\u003c\/h3\u003e\n\u003cp\u003eSelect your configuration above. This enclosure ships free to the lower 48 with a 1 year limited warranty, built one at a time in Tullahoma, Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Dark Gray Trunkliner","offer_id":43083090690137,"sku":"PO10-P W NB2 LD G","price":289.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black","offer_id":43083090722905,"sku":"PO10-P W NB2 LD B","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-wedge-style-ported-10-inch-subwoofer-enclosure-prodigy-nb2-10subwoofer-enclosuresproline-x-5250043.jpg?v=1771479428"},{"product_id":"proline-x-sealed-10-enclosure-loaded-with-prodigy-audio-nb3","title":"Proline-X Sealed 10\" Enclosure – Loaded with Prodigy Audio NB3","description":"\u003cstyle\u003e\n.pl-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#cbd5e1;max-width:1100px;margin:0 auto;background:#020617;}\n.pl-wrap *{box-sizing:border-box;}\n.pl-hero{background:linear-gradient(135deg,#020617 0%,#2e1065 100%);padding:54px 36px;text-align:center;color:#fff;}\n.pl-hero h2{font-size:2.3em;font-weight:800;text-transform:uppercase;letter-spacing:1.5px;margin:0 0 12px;color:#fff;}\n.pl-hero p{font-size:1.1em;font-weight:300;opacity:.93;margin:0 0 22px;color:#cbd5e1;}\n.pl-badges{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;}\n.pl-badge{background:rgba(139,92,246,.18);border:1px solid #8b5cf6;color:#c4b5fd;padding:7px 16px;border-radius:18px;font-size:.8em;font-weight:600;letter-spacing:.4px;}\n.pl-stats{display:flex;flex-wrap:wrap;background:#0f172a;}\n.pl-stat{flex:1 1 200px;text-align:center;padding:26px 16px;border-right:1px solid #1e293b;border-bottom:1px solid #1e293b;}\n.pl-stat .n{display:block;font-size:1.6em;font-weight:800;color:#a78bfa;}\n.pl-stat .l{display:block;font-size:.78em;color:#94a3b8;text-transform:uppercase;letter-spacing:.6px;margin-top:5px;}\n.pl-section{padding:42px 36px;border-bottom:1px solid #1e293b;background:#020617;}\n.pl-section:nth-of-type(even){background:#0f172a;}\n.pl-section h3{color:#fff;font-size:1.45em;font-weight:700;margin:0 0 14px;border-left:4px solid #8b5cf6;padding-left:14px;}\n.pl-section p{margin:0 0 14px;color:#cbd5e1;}\n.pl-section strong{color:#fff;}\n.pl-grid{display:flex;flex-wrap:wrap;gap:18px;margin-top:8px;}\n.pl-card{flex:1 1 280px;background:#0f172a;border:1px solid #1e293b;border-top:3px solid #8b5cf6;border-radius:8px;padding:20px 22px;}\n.pl-card h4{color:#c4b5fd;margin:0 0 8px;font-size:1.04em;}\n.pl-card p{margin:0;font-size:.95em;color:#94a3b8;}\n.pl-card strong{color:#fff;}\n.pl-highlight{background:#2e1065;border-left:4px solid #8b5cf6;border-radius:0 8px 8px 0;padding:18px 22px;margin:18px 0;}\n.pl-highlight p{margin:0;color:#cbd5e1;}\n.pl-highlight strong{color:#fff;}\n.pl-enc{background:#0f172a;color:#cbd5e1;padding:42px 36px;border-bottom:1px solid #1e293b;}\n.pl-enc h3{color:#fff;font-size:1.45em;font-weight:700;margin:0 0 14px;border-left:4px solid #8b5cf6;padding-left:14px;}\n.pl-enc p{margin:0 0 14px;color:#cbd5e1;}\n.pl-enc-card{background:#1e293b;border:1px solid #334155;border-radius:8px;overflow:hidden;margin:18px 0;}\n.pl-enc-head{padding:12px 16px;font-size:.82em;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:#c4b5fd;background:#2e1065;}\n.pl-enc-table{width:100%;border-collapse:collapse;}\n.pl-enc-table th{background:#020617;color:#94a3b8;font-size:.78em;text-transform:uppercase;letter-spacing:.5px;padding:10px 14px;text-align:left;border-bottom:1px solid #334155;}\n.pl-enc-table td{padding:12px 14px;border-bottom:1px solid #1e293b;color:#cbd5e1;font-size:.95em;}\n.pl-enc-table tr:last-child td{border-bottom:none;}\n.pl-opt td{background:#2e1065;color:#fff;font-weight:600;}\n.pl-char{display:block;font-size:.78em;color:#94a3b8;font-weight:400;margin-top:2px;}\n.pl-opt .pl-char{color:#c4b5fd;}\n.pl-graph{background:#020617;border:1px solid #334155;border-radius:8px;padding:14px;margin:18px 0;}\n.pl-graph-title{font-size:.78em;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:#94a3b8;margin:0 0 10px;}\n.pl-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px;}\n.pl-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:#94a3b8;}\n.pl-sw{width:22px;height:3px;border-radius:2px;display:inline-block;}\n.pl-note{background:#1e293b;border:1px solid #334155;border-radius:8px;padding:14px 16px;margin-top:6px;}\n.pl-note p{margin:0;color:#cbd5e1;font-size:13.5px;line-height:1.6;}\n.pl-link{color:#a78bfa;text-decoration:underline;}\n.pl-cta{background:linear-gradient(135deg,#020617 0%,#2e1065 100%);padding:40px 36px;text-align:center;color:#fff;}\n.pl-cta h3{color:#fff;font-size:1.4em;margin:0 0 10px;border:none;padding:0;}\n.pl-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#cbd5e1;}\n@media(max-width:600px){.pl-hero h2{font-size:1.7em;}.pl-section,.pl-enc,.pl-cta,.pl-hero{padding-left:20px;padding-right:20px;}}\n\u003c\/style\u003e\n\u003cdiv class=\"pl-wrap\"\u003e\n\n\u003cdiv class=\"pl-hero\"\u003e\n\u003ch2\u003eProline X Micro Series Enclosure for the Prodigy NB3-10d4\u003c\/h2\u003e\n\u003cp\u003eCut and tuned for the Prodigy NB3-10d4\u003c\/p\u003e\n\u003cdiv class=\"pl-badges\"\u003e\n\u003cspan class=\"pl-badge\"\u003eCNC Stack-Fab\u003c\/span\u003e\n\u003cspan class=\"pl-badge\"\u003eLangboard Elite MDF\u003c\/span\u003e\n\u003cspan class=\"pl-badge\"\u003e0.80 cu ft Net\u003c\/span\u003e\n\u003cspan class=\"pl-badge\"\u003eFits Prodigy NB3-10d4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-stats\"\u003e\n\u003cdiv class=\"pl-stat\"\u003e\n\u003cspan class=\"n\"\u003e0.80\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pl-stat\"\u003e\n\u003cspan class=\"n\"\u003e3.000\"\u003c\/span\u003e\u003cspan class=\"l\"\u003eNB3-10d4 mounting depth\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pl-stat\"\u003e\n\u003cspan class=\"n\"\u003e11mm\u003c\/span\u003e\u003cspan class=\"l\"\u003eone-way Xmax\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-section\"\u003e\n\u003ch3\u003eBuilt Around the Prodigy NB3-10d4\u003c\/h3\u003e\n\u003cp\u003eNothing about this box is generic. Every layer is cut to the NB3-10d4's published sealed target, with the baffle bored to the NB3-10d4's 9.125\" cutout with 8\/32 threaded inserts set on the back face, and clearance cut for its 3.000\" mounting depth.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-section\"\u003e\n\u003ch3\u003eNet Volume, Not Gross\u003c\/h3\u003e\n\u003cp\u003eWe build this cabinet at \u003cstrong\u003e0.80 cubic feet net\u003c\/strong\u003e. The volume quoted is true net internal airspace, measured after the walls, bracing and driver displacement are accounted for.\u003c\/p\u003e\n\u003cdiv class=\"pl-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eTrue net, not marketing net.\u003c\/strong\u003e Internal volume is calculated by summing\neach CNC cut layer's opening, not estimated from external dimensions minus wall thickness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-section\"\u003e\n\u003ch3\u003eProline X Micro Series Construction\u003c\/h3\u003e\n\u003cp\u003eThis enclosure is stack fabricated on our ShopSabre routers from Langboard Elite 3\/4 inch MDF,\na dense 48.5 lb\/ft³ board with a 200 psi internal bond and 410,000 psi MOE.\nEvery layer is a precision cut ring and the stacked layers do the joining themselves, so there is no butt joint or dado to flex or leak. Dowel reinforcement runs between layers as tension hardware only.\u003c\/p\u003e\n\u003cdiv class=\"pl-grid\"\u003e\n\u003cdiv class=\"pl-card\"\u003e\n\u003ch4\u003eThreaded Inserts, Not Wood Screws\u003c\/h4\u003e\n\u003cp\u003e8\/32 threaded inserts are set on the backside of the baffle so the driver mounts on machine screws. Pull it a dozen times and the threads are still there.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pl-card\"\u003e\n\u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n\u003cp\u003eProline X ABS and carbon fiber composite cup with stainless hardware and copper ring terminals, pre-wired internally with \u003cstrong\u003e12 gauge OFC\u003c\/strong\u003e. No CCA anywhere in the build.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pl-card\"\u003e\n\u003ch4\u003eDamped and Finished\u003c\/h4\u003e\n\u003cp\u003ePolyfill is pre-installed to smooth the in box response, and the shell is wrapped in plush black carpet. Built in Tullahoma, Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-section\"\u003e\n\u003ch3\u003eEnclosure Only or Loaded\u003c\/h3\u003e\n\u003cp\u003eOrder the enclosure bare and mount your own NB3-10d4, or order it loaded and we mount the driver, dress the wiring and ship it ready to bolt in.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pl-cta\"\u003e\n\u003ch3\u003eCut for the Driver, Not the Catalog\u003c\/h3\u003e\n\u003cp\u003eSelect your configuration above. This enclosure ships free to the lower 48 with a 2 year limited warranty, built one at a time in Tullahoma, Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":43097750306905,"sku":"M10-S NB3 D4","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-sealed-10-enclosure-loaded-with-prodigy-audio-nb3subwoofer-enclosuresproline-x-2701125.jpg?v=1772142068"},{"product_id":"performance-optimized-sealed-10-enclosure-image-dynamics-idq-10","title":"Performance Optimized Sealed 10\" Enclosure | Image Dynamics IDQ 10","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized | Image Dynamics IDQ 10\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 10\" Sealed Enclosure | Driver-Specific for the IDQ10 V4\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.0 ft³ Net\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eThreaded Inserts\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e20\" × 14\" × 8.5\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eLangboard Elite MDF\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe IDQ10 V4 Deserves a Box Built for It\u003c\/h2\u003e\n    \u003cp\u003eThe Image Dynamics IDQ10 V4 is one of the most respected sound quality 10\" subwoofers on the market. A field-replaceable mica-reinforced cone, Nomex spider, 14.5mm linear Xmax, and a 31.77 Hz Fs that loads beautifully into a properly sized sealed cabinet. Drop it in a generic box and you'll get good bass. Drop it in a cabinet engineered around its Thiele-Small parameters and you'll hear what the IDQ was designed to do.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Sealed 10 is that cabinet. Internal volume, baffle thickness, bracing layout, and mounting hardware are all chosen to extract the IDQ10 V4's full mechanical and acoustic potential — not approximated, not averaged across a class of 10s, not adapted from a universal box.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003eThis enclosure is engineered specifically around the published Thiele-Small parameters of the Image Dynamics IDQ10 V4. The 1.0 cu ft net volume and 9.57\" cutout are tuned to the IDQ — not a generic 10\" platform.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy Performance Optimized Sits Where It Does\u003c\/h2\u003e\n    \u003cp\u003eThe Performance Optimized line is the bridge between our standard Performance Series and our top-tier Professional Series. Same Performance-tier construction quality — Langboard Elite MDF, V-groove and dado joinery, ShopSabre CNC routing — but the geometry of every panel is cut around one specific driver instead of a class of drivers.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003evs Performance Series\u003c\/h4\u003e\n        \u003cp\u003eStandard Performance Series boxes (P6 through P15) are built for universal driver fitment within a size class. Great if you want flexibility across multiple driver options. Performance Optimized takes the same construction and locks the airspace and hardware to one specific driver.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003evs Professional Series\u003c\/h4\u003e\n        \u003cp\u003eProfessional Series uses extensive multi-layer baffles, triple-stacked construction, and a 2-year warranty for the most demanding builds. Performance Optimized delivers driver-specific engineering at a more accessible price point with a 1-year warranty.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered Around the IDQ10 V4's Parameters\u003c\/h2\u003e\n    \u003cp\u003eImage Dynamics calls for the IDQ10 V4 to live somewhere between 0.6 and 1.1 cubic feet sealed. We landed on 1.0 cu ft net after airspace because that's where the IDQ's Qtc, F3, and transient response settle into the sweet spot most SQ-oriented installers chase. Tight, fast, articulate — without sounding choked or clinical.\u003c\/p\u003e\n    \u003ch3\u003eVolume Selection\u003c\/h3\u003e\n    \u003cp\u003e1.0 cu ft net is the upper end of the IDQ's compact-sealed range. Smaller volumes drive Qtc higher (overdamped, dry), larger volumes pull it lower (underdamped, loose). At 1.0 cu ft, the IDQ produces a Qtc near 0.707 — textbook critical damping, where transient response and low-end extension balance cleanly.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe 9.57\" cutout matches the IDQ's flange geometry exactly. The 5.81\" mounting depth specification leaves comfortable internal clearance behind the magnet structure inside the 8.5\" deep cabinet. No interference, no airspace robbed by a deep motor.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the cabinet fold into shape with maximum glue surface. Dado joints lock the baffle and rear panel into the side walls — no fasteners visible from outside.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the baffle backside accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. Tolerances that manual fabrication can't hold — joints close cleanly, baffle concentricity stays accurate, and internal volume is consistent unit to unit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a \u003cstrong\u003eDual 2-ohm\u003c\/strong\u003e or \u003cstrong\u003eDual 4-ohm\u003c\/strong\u003e IDQ10 V4 directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your IDQ? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eStop Compromising Your IDQ\u003c\/h2\u003e\n    \u003cp\u003eDriver-specific engineering, Performance Series construction, and the option to bundle the IDQ10 V4 driver in one order. Build the box that was designed for the sub you've already chosen.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Black \/ Box Only","offer_id":43278722498649,"sku":"PO ID 10-S IDQ BB none","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Black \/ Add a Dual 2ohm IDQ 10\"","offer_id":43278704771161,"sku":"PO ID 10-S IDQ BB 2ohm","price":489.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Black \/ Add a Dual 4ohm IDQ 10\"","offer_id":43278722465881,"sku":"PO ID 10-S IDQ BB 4ohm","price":489.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Box Only","offer_id":43278722564185,"sku":"PO ID 10-S IDQ BBL none","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Add a Dual 2ohm IDQ 10\"","offer_id":43278710341721,"sku":"PO ID 10-S IDQ BBL 2ohm","price":489.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black 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Trunkliner \/ Black \/ Add a Dual 4ohm IDQ 10\"","offer_id":43278722105433,"sku":"PO ID 10-S IDQ GB 4ohm","price":479.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue \/ Box Only","offer_id":43278722203737,"sku":"PO ID 10-S IDQ GBL None","price":239.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue \/ Add a Dual 2ohm IDQ 10\"","offer_id":43278710243417,"sku":"PO ID 10-S IDQ GBL 2ohm","price":479.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue \/ Add a Dual 4ohm IDQ 10\"","offer_id":43278722170969,"sku":"PO ID 10-S IDQ GBL 4ohm","price":479.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red \/ Box Only","offer_id":43278722269273,"sku":"PO ID 10-S IDQ GR None","price":239.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red \/ Add a Dual 2ohm IDQ 10\"","offer_id":43278710276185,"sku":"PO ID 10-S IDQ GR 2ohm","price":479.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red \/ Add a Dual 4ohm IDQ 10\"","offer_id":43278722236505,"sku":"PO ID 10-S IDQ GR 4ohm","price":479.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White \/ Box Only","offer_id":43278722367577,"sku":"PO ID 10-S IDQ GW None","price":239.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White \/ Add a Dual 2ohm IDQ 10\"","offer_id":43278722302041,"sku":"PO ID 10-S IDQ GW 2ohm","price":479.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White \/ Add a Dual 4ohm IDQ 10\"","offer_id":43278722334809,"sku":"PO ID 10-S IDQ GW 4ohm","price":479.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Box Only","offer_id":43278722433113,"sku":"PO ID 10-S IDQ G None","price":199.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Add a Dual 2ohm IDQ 10\"","offer_id":43278710308953,"sku":"PO ID 10-S IDQ G 2ohm","price":439.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Add a Dual 4ohm IDQ 10\"","offer_id":43278722400345,"sku":"PO ID 10-S IDQ G 4ohm","price":439.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-sealed-10-enclosure-image-dynamics-idq-10subwoofer-enclosuresproline-x-2511067.webp?v=1779355148"},{"product_id":"performance-optimized-dual-sealed-10-enclosure-image-dynamics-idq-10","title":"Performance Optimized Dual Sealed 10\" Enclosure | Image Dynamics IDQ 10","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { 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(max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized | Dual Image Dynamics IDQ 10\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eDual 10\" Sealed Enclosure | Driver-Specific for the IDQ10 V4\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e2.0 ft³ Net\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eCommon Chamber\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e28\" × 14\" × 12.5\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eLangboard Elite MDF\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTwo IDQ10 V4s in One Engineered Cabinet\u003c\/h2\u003e\n    \u003cp\u003eThe Dual Sealed 10 is a 2.0 cu ft common-chamber sealed enclosure engineered around two Image Dynamics IDQ10 V4 subwoofers. Total internal airspace, baffle geometry, and bracing layout are all tuned to the IDQ — same driver-specific approach as the single, scaled to a properly loaded pair.\u003c\/p\u003e\n    \u003cp\u003eIf one IDQ10 V4 is good (and it is), two of them in a properly sized cabinet doesn't just double the output — it transforms the system. More cone area, more thermal headroom, smoother midbass loading, and a noticeably more relaxed presentation at the same SPL. The Dual Sealed 10 is the box that makes that happen without giving up the SQ characteristics that made you pick the IDQ in the first place.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e2.0 cubic feet of net internal volume, sized specifically for a pair of IDQ10 V4 drivers operating in a shared sealed environment. The same driver-specific engineering applied to the single, scaled correctly for two.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy More Cone Area Sounds Better, Not Just Louder\u003c\/h2\u003e\n    \u003cp\u003eDoubling the driver count isn't about hitting bigger numbers on a meter — it's about each driver doing less work to produce the same output. Two 10s playing at moderate excursion will always sound cleaner than a single 10 working hard to hit the same SPL. Lower distortion, lower thermal compression, and a presentation that sounds easier on the ears even at high listening levels.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTwice the Cone Area\u003c\/h4\u003e\n        \u003cp\u003eTwo IDQ10 V4s deliver roughly 2x the radiating area of a single 10. That extra surface area means each driver moves less to produce the same SPL, which translates directly to lower mechanical and thermal stress on each woofer.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eThermal Headroom\u003c\/h4\u003e\n        \u003cp\u003ePower split across two voice coils generates less heat per driver than the same total power into a single coil. Less heat means less thermal compression, which means consistent output across long listening sessions instead of the system getting quieter as it warms up.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eEffortless Midbass\u003c\/h4\u003e\n        \u003cp\u003eThe IDQ's strength is its tonal accuracy through the midbass region. Two of them sharing the workload pushes that strength further — kick drums, bass guitar fundamentals, and vocal warmth all sit cleaner in the mix because neither driver is straining.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSound Quality at Volume\u003c\/h4\u003e\n        \u003cp\u003eThe biggest practical difference between one IDQ and two: you can listen at higher volumes without the system starting to sound stressed. At any given SPL, the pair is operating well below either driver's mechanical or thermal limits.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered Around the IDQ10 V4's Parameters\u003c\/h2\u003e\n    \u003cp\u003eThe 2.0 cu ft total volume is sized for two IDQs operating in a shared sealed environment — effectively giving each driver access to 1.0 cu ft of net airspace, the same per-driver volume the single Performance Optimized Sealed 10 delivers. Image Dynamics calls for the IDQ10 V4 to live somewhere between 0.6 and 1.1 cubic feet sealed; 2.0 cu ft total puts the pair right in the SQ sweet spot most installers chase.\u003c\/p\u003e\n    \u003ch3\u003eVolume Selection\u003c\/h3\u003e\n    \u003cp\u003e2.0 cu ft net is the total internal volume after material thickness, bracing, and driver displacement. With two IDQs sharing the cabinet, each driver effectively operates against 1.0 cu ft of air spring — the upper end of the IDQ's compact-sealed range, where Qtc lands near 0.707 (textbook critical damping) for clean transient response and balanced low-end extension.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eBoth baffles are cut to the IDQ10 V4's exact 9.57\" cutout with 9.75\" bolt circle. 8\/32 threaded inserts at every mounting position — drop the IDQs in, hand-thread the supplied stainless hardware, done. The 5.81\" published mounting depth on the IDQ leaves comfortable internal clearance behind both magnet structures inside the 12.5\" deep cabinet.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at real power levels.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the cabinet fold into shape with maximum glue surface. Dado joints lock the baffle and rear panel into the side walls — no fasteners visible from outside.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into both baffle backsides accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. Tolerances that manual fabrication can't hold — joints close cleanly, baffle concentricity stays accurate, and internal volume is consistent unit to unit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle inserts to match your build. Or skip the inserts entirely (-$40) for a clean, understated look. The inserts are purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded Pair\u003c\/h3\u003e\n    \u003cp\u003eAdd a matched pair of \u003cstrong\u003eDual 2-ohm\u003c\/strong\u003e or \u003cstrong\u003eDual 4-ohm\u003c\/strong\u003e IDQ10 V4 drivers directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your IDQs? Order the enclosure box-only and drop in the drivers you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring Two IDQs to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eBoth drivers share a single terminal cup, pre-wired with 12-gauge OFC for clean signal transfer. The wiring configuration depends on the impedance version of the IDQs you run and what your amplifier is stable at.\u003c\/p\u003e\n    \u003ch3\u003eTwo Dual 2-Ohm IDQs\u003c\/h3\u003e\n    \u003cp\u003eEach driver's coils in parallel = 1 ohm per driver. Two 1-ohm drivers in series = 2 ohms combined. Two 1-ohm drivers in parallel = 0.5 ohm combined (most monoblock amps won't handle this — verify your amp's stable load).\u003c\/p\u003e\n    \u003ch3\u003eTwo Dual 4-Ohm IDQs\u003c\/h3\u003e\n    \u003cp\u003eEach driver's coils in parallel = 2 ohms per driver. Two 2-ohm drivers in parallel = 1 ohm combined. Two 2-ohm drivers in series = 4 ohms combined. The Dual 4-ohm version is the more flexible option for most amplifier setups.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eTwo IDQs, Done Right\u003c\/h2\u003e\n    \u003cp\u003eDriver-specific airspace sized for a pair, Performance Series construction, and the option to bundle a matched pair of IDQ10 V4s in one order. The Dual Sealed 10 is the cabinet your IDQs were engineered to live in.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Black \/ Box Only","offer_id":43285296382041,"sku":"PO ID 10D-S IDQ BB none","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Black \/ Add 2 Dual 2ohm IDQ 10\"","offer_id":43285296414809,"sku":"PO ID 10D-S IDQ BB 2ohm","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Black \/ Add 2 Dual 4ohm IDQ 10\"","offer_id":43285296447577,"sku":"PO ID 10D-S IDQ BB 4ohm","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Box Only","offer_id":43285296480345,"sku":"PO ID 10D-S IDQ BBL none","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Add 2 Dual 2ohm IDQ 10\"","offer_id":43285296513113,"sku":"PO ID 10D-S IDQ BBL 2ohm","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Add 2 Dual 4ohm IDQ 10\"","offer_id":43285296545881,"sku":"PO ID 10D-S IDQ BBL 4ohm","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red \/ Box Only","offer_id":43285296578649,"sku":"PO ID 10D-S IDQ BR none","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red \/ Add 2 Dual 2ohm IDQ 10\"","offer_id":43285296611417,"sku":"PO ID 10D-S IDQ BR 2ohm","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red \/ Add 2 Dual 4ohm IDQ 10\"","offer_id":43285296644185,"sku":"PO ID 10D-S IDQ BR 4ohm","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White \/ Box Only","offer_id":43285296676953,"sku":"PO ID 10D-S IDQ  BW none","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White \/ Add 2 Dual 2ohm IDQ 10\"","offer_id":43285296709721,"sku":"PO ID 10D-S IDQ BW 2ohm","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White \/ Add 2 Dual 4ohm IDQ 10\"","offer_id":43285296742489,"sku":"PO ID 10D-S IDQ BW 4ohm","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None \/ Box Only","offer_id":43285296775257,"sku":"PO ID 10D-S IDQ B none","price":289.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None \/ Add 2 Dual 2ohm IDQ 10\"","offer_id":43285296808025,"sku":"PO ID 10D-S IDQ B 2ohm","price":689.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None \/ Add 2 Dual 4ohm IDQ 10\"","offer_id":43285296840793,"sku":"PO ID 10D-S IDQ B 4ohm","price":689.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black \/ Box Only","offer_id":43285296873561,"sku":"PO ID 10D-S IDQ GB None","price":319.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black \/ Add 2 Dual 2ohm IDQ 10\"","offer_id":43285296906329,"sku":"PO ID 10D-S IDQ GB 2ohm","price":719.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black \/ Add 2 Dual 4ohm IDQ 10\"","offer_id":43285296939097,"sku":"PO ID 10D-S IDQ GB 4ohm","price":719.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue \/ Box Only","offer_id":43285296971865,"sku":"PO ID 10D-S IDQ GBL None","price":319.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue \/ Add 2 Dual 2ohm IDQ 10\"","offer_id":43285297004633,"sku":"PO ID 10D-S IDQ GBL 2ohm","price":719.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue \/ Add 2 Dual 4ohm IDQ 10\"","offer_id":43285297037401,"sku":"PO ID 10D-S IDQ GBL 4ohm","price":719.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red \/ Box Only","offer_id":43285297070169,"sku":"PO ID 10D-S IDQ GR None","price":319.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red \/ Add 2 Dual 2ohm IDQ 10\"","offer_id":43285297102937,"sku":"PO ID 10D-S IDQ GR 2ohm","price":719.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red \/ Add 2 Dual 4ohm IDQ 10\"","offer_id":43285297135705,"sku":"PO ID 10D-S IDQ GR 4ohm","price":719.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White \/ Box Only","offer_id":43285297168473,"sku":"PO ID 10D-S IDQ GW None","price":319.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White \/ Add 2 Dual 2ohm IDQ 10\"","offer_id":43285297201241,"sku":"PO ID 10D-S IDQ GW 2ohm","price":719.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White \/ Add 2 Dual 4ohm IDQ 10\"","offer_id":43285297234009,"sku":"PO ID 10D-S IDQ GW 4ohm","price":719.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Box Only","offer_id":43285297266777,"sku":"PO ID 10D-S IDQ G None","price":279.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Add 2 Dual 2ohm IDQ 10\"","offer_id":43285297299545,"sku":"PO ID 10D-S IDQ G 2ohm","price":679.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Add 2 Dual 4ohm IDQ 10\"","offer_id":43285297332313,"sku":"PO ID 10D-S IDQ G 4ohm","price":679.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-dual-sealed-10-enclosure-image-dynamics-idq-10subwoofer-enclosuresproline-x-6919893.webp?v=1779355145"},{"product_id":"performance-optimized-sealed-10-enclosure-sony-es","title":"Performance Optimized Sealed 10\" Enclosure | Sony ES","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized | Sony Mobile ES\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 10\" Sealed Enclosure | Driver-Specific for the XS-W104ES\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.0 ft³ Net\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eThreaded Inserts\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e20\" × 14\" × 9.5\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eLangboard Elite MDF\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Sony XS-W104ES Deserves a Box Built for It\u003c\/h2\u003e\n    \u003cp\u003eSony's Mobile ES Series represents the pinnacle of their car audio engineering. The XS-W104ES is built around a mica flake \/ aramid fiber \/ pulp cone with a honeycomb core, separated-notch rubber surround, and a 450-watt RMS power rating that demands a properly sized cabinet to deliver on its potential. Drop it in a generic box and you'll get good bass. Drop it in a cabinet engineered around its intended sealed alignment and you'll hear what the Mobile ES Series was designed to do.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Sealed 10 for Sony ES is that cabinet. Internal volume, baffle thickness, and mounting hardware are all chosen to extract the XS-W104ES's full mechanical and acoustic potential — not approximated, not averaged across a class of 10s, not adapted from a universal box.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003eThis enclosure is engineered specifically around the Sony XS-W104ES. The 1.0 cu ft net volume and direct-fit cutout are tuned to the Mobile ES Series 10 — not a generic 10\" platform.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy Performance Optimized Sits Where It Does\u003c\/h2\u003e\n    \u003cp\u003eThe Performance Optimized line is the bridge between our standard Performance Series and our top-tier Professional Series. Same Performance-tier construction quality — Langboard Elite MDF, V-groove and dado joinery, ShopSabre CNC routing — but the geometry of every panel is cut around one specific driver instead of a class of drivers.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003evs Performance Series\u003c\/h4\u003e\n        \u003cp\u003eStandard Performance Series boxes (P6 through P15) are built for universal driver fitment within a size class. Great if you want flexibility across multiple driver options. Performance Optimized takes the same construction and locks the airspace and hardware to one specific driver.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003evs Professional Series\u003c\/h4\u003e\n        \u003cp\u003eProfessional Series uses extensive multi-layer baffles, triple-stacked construction, and a 2-year warranty for the most demanding builds. Performance Optimized delivers driver-specific engineering at a more accessible price point with a 1-year warranty.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered Around the XS-W104ES\u003c\/h2\u003e\n    \u003cp\u003eThe Sony Mobile ES Series 10\" performs best in a sealed cabinet that gives the cone the right air spring without overdamping the response. 1.0 cu ft net is where the XS-W104ES settles into its intended SQ-oriented sealed alignment — tight, articulate transients on kick drums and bass guitar, controlled low-end extension, and the tonal accuracy Sony engineered the Mobile ES Series cone composition to deliver.\u003c\/p\u003e\n    \u003ch3\u003eVolume Selection\u003c\/h3\u003e\n    \u003cp\u003e1.0 cu ft net is the airspace that lets the Sony cone work cleanly without fighting the cabinet. Smaller volumes overdamp the response and dry out the bottom end. Larger volumes loosen Qtc and compromise the Sony's signature controlled presentation. 1.0 cu ft is the SQ-oriented sweet spot for the Mobile ES Series 10.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe baffle is cut to the XS-W104ES's exact direct-fit specification. The 5.382\" mounting depth on the Sony leaves comfortable internal clearance behind the magnet structure inside the 9.5\" deep cabinet. No interference, no airspace robbed by a deep motor.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at real power levels.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the cabinet fold into shape with maximum glue surface. Dado joints lock the baffle and rear panel into the side walls — no fasteners visible from outside.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the baffle backside accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. Tolerances that manual fabrication can't hold — joints close cleanly, baffle concentricity stays accurate, and internal volume is consistent unit to unit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a \u003cstrong\u003eSony XS-W104ES\u003c\/strong\u003e driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your XS-W104ES? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the XS-W104ES to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Sony XS-W104ES is a single 4-ohm voice coil driver — simpler wiring than a dual-coil design, and ideally suited for monoblock subwoofer amplifiers stable at 2 or 4 ohms. The pre-wired terminal cup accepts the XS-W104ES's gold-plated spring terminals via 12-gauge OFC, with stainless hardware on the input side that accepts both spade and banana terminations.\u003c\/p\u003e\n    \u003cp\u003eThe XS-W104ES is rated for 450 watts RMS. Aim for a clean, well-regulated amplifier delivering 350 to 450 watts at 4 ohms — Sony designed this driver for refined power, not headline numbers. Mobile ES Series amplifiers from Sony's lineup are engineered to pair specifically with this driver, but any quality monoblock with honest 4-ohm output will work.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eStop Compromising Your Mobile ES\u003c\/h2\u003e\n    \u003cp\u003eDriver-specific engineering, Performance Series construction, and the option to bundle the XS-W104ES driver in one order. Build the box that was designed for the sub you've already chosen.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Black \/ Box Only","offer_id":43287920181337,"sku":"PO10-S SONY BB","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Black \/ Add a Sony XS-W104ES Subwoofer","offer_id":43287920246873,"sku":"PO10-S SONY BB S4","price":449.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Box Only","offer_id":43287920279641,"sku":"PO10-S SONY BBL","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Add a Sony XS-W104ES Subwoofer","offer_id":43287920345177,"sku":"PO10-S SONY BBL S4","price":449.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red \/ Box Only","offer_id":43287920377945,"sku":"PO10-S SONY BR","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red \/ Add a Sony XS-W104ES Subwoofer","offer_id":43287920443481,"sku":"PO10-S SONY BR S4","price":449.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White \/ Box Only","offer_id":43287920476249,"sku":"PO10-S SONY BW","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White \/ Add a Sony XS-W104ES Subwoofer","offer_id":43287920541785,"sku":"PO10-S SONY BW S4","price":449.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None \/ Box Only","offer_id":43287920574553,"sku":"PO10-S SONY B","price":209.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None \/ Add a Sony XS-W104ES Subwoofer","offer_id":43287920640089,"sku":"PO10-S SONY B S4","price":409.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black \/ Box Only","offer_id":43287920672857,"sku":"PO10-S SONY GB","price":239.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black \/ Add a Sony XS-W104ES Subwoofer","offer_id":43287920738393,"sku":"PO10-S SONY GB S4","price":439.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue \/ Box Only","offer_id":43287920771161,"sku":"PO10-S SONY GBL","price":239.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue \/ Add a Sony XS-W104ES Subwoofer","offer_id":43287920836697,"sku":"PO10-S SONY GBL S4","price":439.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red \/ Box Only","offer_id":43287920869465,"sku":"PO10-S SONY GR","price":239.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red \/ Add a Sony XS-W104ES Subwoofer","offer_id":43287920935001,"sku":"PO10-S SONY GR S4","price":439.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White \/ Box Only","offer_id":43287920967769,"sku":"PO10-S SONY GW","price":239.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White \/ Add a Sony XS-W104ES Subwoofer","offer_id":43287921033305,"sku":"PO10-S SONY GW S4","price":439.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Box Only","offer_id":43287921066073,"sku":"PO10-S SONY G","price":199.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Add a Sony XS-W104ES Subwoofer","offer_id":43287921131609,"sku":"PO10-S SONY G S4","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-sealed-10-enclosure-sony-essubwoofer-enclosuresproline-x-2829482.webp?v=1779355147"},{"product_id":"performance-optimized-dual-sealed-12-enclosure-image-dynamics-idq-12","title":"Performance Optimized Dual Sealed 12\" Enclosure | Image Dynamics IDQ 12","description":"\u003cdiv class=\"po-desc\"\u003e\n\u003cstyle\u003e\n  .po-desc {\n    --po-dark: #0f172a;\n    --po-deep: #0e7490;\n    --po-accent: #06b6d4;\n    --po-tint: #f0f9ff;\n    --po-line: #cfe8f3;\n    --po-text: #1a2233;\n    --po-muted: #4a5568;\n    max-width: 1200px;\n    margin: 0 auto;\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: var(--po-text) !important;\n    line-height: 1.6;\n  }\n  .po-desc * { box-sizing: border-box; }\n  .po-hero {\n    background: linear-gradient(135deg, var(--po-dark) 0%, #134e63 55%, var(--po-deep) 100%);\n    color: #fff !important;\n    padding: 56px 44px;\n    border-radius: 14px;\n    text-align: center;\n  }\n  .po-hero .po-eyebrow {\n    display: inline-block;\n    font-size: 13px;\n    letter-spacing: 2.5px;\n    text-transform: uppercase;\n    color: #7dd3fc !important;\n    font-weight: 700;\n    margin-bottom: 16px;\n  }\n  .po-hero h2 {\n    font-size: 34px;\n    line-height: 1.2;\n    margin: 0 0 14px;\n    color: #fff !important;\n    font-weight: 800;\n  }\n  .po-hero p {\n    font-size: 18px;\n    color: #d6f0fa !important;\n    max-width: 760px;\n    margin: 0 auto;\n  }\n  .po-badges {\n    display: flex;\n    flex-wrap: wrap;\n    justify-content: center;\n    gap: 10px;\n    margin-top: 22px;\n  }\n  .po-badge {\n    background: rgba(255,255,255,0.12);\n    border: 1px solid rgba(125,211,252,0.5);\n    color: #d6f0fa !important;\n    font-size: 12.5px;\n    font-weight: 700;\n    letter-spacing: 1px;\n    text-transform: uppercase;\n    padding: 7px 14px;\n    border-radius: 999px;\n  }\n  .po-section {\n    background: #ffffff;\n    padding: 40px 44px;\n    margin-top: 26px;\n    border-radius: 14px;\n    border: 1px solid var(--po-line);\n  }\n  .po-section.tint { background: var(--po-tint); }\n  .po-section h3 {\n    font-size: 25px;\n    margin: 0 0 18px;\n    color: var(--po-deep) !important;\n    font-weight: 800;\n  }\n  .po-section p {\n    font-size: 16.5px;\n    color: var(--po-text) !important;\n    margin: 0 0 16px;\n  }\n  .po-section p:last-child { margin-bottom: 0; }\n  .po-highlight {\n    border-left: 4px solid var(--po-accent);\n    background: #ecfbff;\n    padding: 20px 24px;\n    border-radius: 0 10px 10px 0;\n    margin: 22px 0 0;\n  }\n  .po-highlight p { margin: 0; font-size: 16px; }\n  .po-grid {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    gap: 20px;\n    margin-top: 24px;\n  }\n  @media (max-width: 720px) { .po-grid { grid-template-columns: 1fr; } }\n  .po-card {\n    background: #ffffff;\n    border: 1px solid var(--po-line);\n    border-radius: 12px;\n    padding: 26px;\n  }\n  .po-card-label {\n    display: inline-block;\n    font-size: 11.5px;\n    letter-spacing: 1.5px;\n    text-transform: uppercase;\n    color: var(--po-accent) !important;\n    font-weight: 700;\n    margin-bottom: 10px;\n  }\n  .po-card h4 {\n    font-size: 18.5px;\n    margin: 0 0 12px;\n    color: var(--po-deep) !important;\n    font-weight: 700;\n  }\n  .po-card-divider {\n    width: 42px;\n    height: 3px;\n    background: var(--po-accent);\n    border-radius: 2px;\n    margin: 0 0 14px;\n  }\n  .po-card p { font-size: 15.5px; color: var(--po-muted) !important; margin: 0; }\n  .po-stats {\n    display: grid;\n    grid-template-columns: repeat(3, 1fr);\n    gap: 16px;\n    margin-top: 22px;\n  }\n  @media (max-width: 720px) { .po-stats { grid-template-columns: 1fr; } }\n  .po-stat-cell {\n    background: linear-gradient(160deg, #134e63, var(--po-deep));\n    color: #fff !important;\n    border-radius: 12px;\n    padding: 24px 20px;\n    text-align: center;\n  }\n  .po-stat-cell .num {\n    display: block;\n    font-size: 30px;\n    font-weight: 800;\n    line-height: 1.1;\n    color: #fff !important;\n  }\n  .po-stat-cell .unit {\n    display: block;\n    font-size: 13px;\n    letter-spacing: 1px;\n    text-transform: uppercase;\n    color: #a5e3f7 !important;\n    margin-top: 8px;\n  }\n  .po-cta {\n    background: linear-gradient(135deg, var(--po-deep) 0%, #134e63 50%, var(--po-dark) 100%);\n    color: #fff !important;\n    padding: 44px;\n    border-radius: 14px;\n    text-align: center;\n    margin-top: 26px;\n  }\n  .po-cta h3 { color: #fff !important; font-size: 24px; margin: 0 0 12px; font-weight: 800; }\n  .po-cta p { color: #d6f0fa !important; font-size: 16.5px; margin: 0 auto; max-width: 680px; }\n\u003c\/style\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cspan class=\"po-eyebrow\"\u003eProline X Performance Optimized Series\u003c\/span\u003e\n    \u003ch2\u003eDual Sealed 12\" Enclosure | Image Dynamics IDQ12 V4\u003c\/h2\u003e\n    \u003cp\u003eTwo IDQ12 V4 subwoofers. One precision airspace. This driver-specific sealed enclosure is CNC-cut around the IDQ12's published parameters, so a pair of the most musical 12s in car audio gets exactly the box they were engineered for.\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eCNC-Cut in Tennessee\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003ePre-Wired\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e1-Year Warranty\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch3\u003eEngineered Around the IDQ12 V4\u003c\/h3\u003e\n    \u003cp\u003eThe Image Dynamics IDQ12 V4 is a sealed-box subwoofer by design, with an EBP of 40 that tells you exactly where it belongs. This enclosure gives a pair of them the airspace Image Dynamics' parameters call for: approximately 2.8 cubic feet of net internal volume in a shared common chamber, roughly 1.4 cubic feet per driver after displacement. That sits in the extended range of the IDQ12's sealed window, trading a touch of box punch for deeper extension while preserving the transient accuracy that wins sound quality lanes.\u003c\/p\u003e\n    \u003cp\u003eThe baffle is cut for the IDQ12 V4's 10.87 inch cutout on both positions, and the 15 inch depth swallows the driver's 5.91 inch mounting depth with room to breathe. Polyfill comes pre-installed, so the enclosure performs as modeled the day it arrives.\u003c\/p\u003e\n    \u003cdiv class=\"po-stats\"\u003e\n      \u003cdiv class=\"po-stat-cell\"\u003e\n\u003cspan class=\"num\"\u003e2.8 ft³\u003c\/span\u003e\u003cspan class=\"unit\"\u003eNet Volume, Common Chamber\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"po-stat-cell\"\u003e\n\u003cspan class=\"num\"\u003e30x15x15\u003c\/span\u003e\u003cspan class=\"unit\"\u003eExternal Inches (WxHxD)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"po-stat-cell\"\u003e\n\u003cspan class=\"num\"\u003e1000W\u003c\/span\u003e\u003cspan class=\"unit\"\u003eSystem RMS (2 x 500W)\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section tint\"\u003e\n    \u003ch3\u003ePerformance Optimized Construction\u003c\/h3\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut from Langboard Elite MDF on our ShopSabre routers in Tullahoma, Tennessee, with precision V-groove and dado joinery for panel alignment and long-term sealed integrity. The baffle carries 8\/32 threaded inserts matched to the IDQ12 V4's published mounting pattern, with stainless steel machine screws included, so the drivers bolt down with real hardware instead of wood screws.\u003c\/p\u003e\n    \u003cp\u003eConnections run through the Proline X ABS and carbon fiber composite terminal cup with stainless hardware and copper ring terminals, pre-wired with 12-gauge OFC to both driver positions. Drop the subs in, land two wires at the cup, and the install is done.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003eThis is the same driver-specific approach as our Professional Series: airspace, cutouts, and hardware locked to one driver, the Image Dynamics IDQ12 V4, rather than averaged across a class of 12s.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch3\u003eFinish It Your Way\u003c\/h3\u003e\n    \u003cp\u003eThe enclosure comes wrapped in Dark Gray Trunkliner as standard, with Plush Black carpet available as an upgrade. The front baffle accepts a colored acrylic insert in Black, Blue, Red, or White to match the build, or can be ordered without the insert for a clean, blacked-out face at a reduced price.\u003c\/p\u003e\n    \u003cp\u003eOrder the box on its own if you already have your drivers, or bundle it with a matched pair of IDQ12 V4 subwoofers in Dual 2-ohm or Dual 4-ohm, and we ship everything together. A pair of Dual 2-ohm drivers wires to a 2-ohm final load; a pair of Dual 4-ohm drivers wires to 1 ohm or 4 ohms.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-grid\"\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eAirspace\u003c\/span\u003e\n      \u003ch4\u003eDriver-Matched Volume\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eApproximately 1.4 cubic feet per driver in a common chamber, set against the IDQ12 V4's published sealed parameters.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eJoinery\u003c\/span\u003e\n      \u003ch4\u003eV-Groove + Dado Construction\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eCNC-cut Langboard Elite MDF with precision joinery for rigid panels and an airtight sealed cabinet that stays that way.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eHardware\u003c\/span\u003e\n      \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eMatched to the IDQ12 V4 mounting pattern with stainless machine screws included. Real fasteners, repeatable torque.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eWiring\u003c\/span\u003e\n      \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eProline X ABS and carbon fiber composite cup with stainless hardware and copper ring terminals, pre-wired in 12-gauge OFC to both positions.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eStyle\u003c\/span\u003e\n      \u003ch4\u003eAcrylic Insert Options\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eBlack, Blue, Red, or White front acrylic to match the build, or skip the insert for a blacked-out baffle.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eBundles\u003c\/span\u003e\n      \u003ch4\u003eBox Only or Loaded\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eOrder the enclosure alone or bundled with a matched pair of IDQ12 V4 drivers in Dual 2-ohm or Dual 4-ohm.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch3\u003eThe Box Two IDQ12s Deserve\u003c\/h3\u003e\n    \u003cp\u003ePrecision airspace, real hardware, and pre-wired connections, built around one driver and cut on CNC in Tennessee. Pair it with 1000 clean watts and let a dual IDQ12 V4 sealed stage do what it was engineered to do.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Black \/ Box Only","offer_id":43382076997721,"sku":"PO ID 12D-S IDQ BB none","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Black \/ Add 2 Dual 2ohm IDQ 12\"","offer_id":43382077030489,"sku":"PO ID 12D-S IDQ BB 2ohm","price":949.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Black \/ Add 2 Dual 4ohm IDQ 12\"","offer_id":43382077063257,"sku":"PO ID 12D-S IDQ BB 4ohm","price":949.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Box Only","offer_id":43382077096025,"sku":"PO ID 12D-S IDQ BBL none","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Add 2 Dual 2ohm IDQ 12\"","offer_id":43382077128793,"sku":"PO ID 12D-S IDQ BBL 2ohm","price":949.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Add 2 Dual 4ohm IDQ 12\"","offer_id":43382077161561,"sku":"PO ID 12D-S IDQ BBL 4ohm","price":949.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red \/ Box Only","offer_id":43382077194329,"sku":"PO ID 12D-S IDQ BR none","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red \/ Add 2 Dual 2ohm IDQ 12\"","offer_id":43382077227097,"sku":"PO ID 12D-S IDQ BR 2ohm","price":949.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red \/ Add 2 Dual 4ohm IDQ 12\"","offer_id":43382077259865,"sku":"PO ID 12D-S IDQ BR 4ohm","price":949.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White \/ Box Only","offer_id":43382077292633,"sku":"PO ID 12D-S IDQ  BW none","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White \/ Add 2 Dual 2ohm IDQ 12\"","offer_id":43382077325401,"sku":"PO ID 12D-S IDQ BW 2ohm","price":949.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White \/ Add 2 Dual 4ohm IDQ 12\"","offer_id":43382077358169,"sku":"PO ID 12D-S IDQ BW 4ohm","price":949.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None \/ Box Only","offer_id":43382077390937,"sku":"PO ID 12D-S IDQ B none","price":369.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None \/ Add 2 Dual 2ohm IDQ 12\"","offer_id":43382077423705,"sku":"PO ID 12D-S IDQ B 2ohm","price":929.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None \/ Add 2 Dual 4ohm IDQ 12\"","offer_id":43382077456473,"sku":"PO ID 12D-S IDQ B 4ohm","price":929.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black \/ Box Only","offer_id":43382077489241,"sku":"PO ID 12D-S IDQ GB None","price":379.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black \/ Add 2 Dual 2ohm IDQ 12\"","offer_id":43382077522009,"sku":"PO ID 12D-S IDQ GB 2ohm","price":939.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black \/ Add 2 Dual 4ohm IDQ 12\"","offer_id":43382077554777,"sku":"PO ID 12D-S IDQ GB 4ohm","price":949.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue \/ Box Only","offer_id":43382077587545,"sku":"PO ID 12D-S IDQ GBL None","price":379.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue \/ Add 2 Dual 2ohm IDQ 12\"","offer_id":43382077620313,"sku":"PO ID 12D-S IDQ GBL 2ohm","price":939.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue \/ Add 2 Dual 4ohm IDQ 12\"","offer_id":43382077653081,"sku":"PO ID 12D-S IDQ GBL 4ohm","price":939.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red \/ Box Only","offer_id":43382077685849,"sku":"PO ID 12D-S IDQ GR None","price":379.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red \/ Add 2 Dual 2ohm IDQ 12\"","offer_id":43382077718617,"sku":"PO ID 12D-S IDQ GR 2ohm","price":939.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red \/ Add 2 Dual 4ohm IDQ 12\"","offer_id":43382077751385,"sku":"PO ID 12D-S IDQ GR 4ohm","price":939.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White \/ Box Only","offer_id":43382077784153,"sku":"PO ID 12D-S IDQ GW None","price":379.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White \/ Add 2 Dual 2ohm IDQ 12\"","offer_id":43382077816921,"sku":"PO ID 12D-S IDQ GW 2ohm","price":939.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White \/ Add 2 Dual 4ohm IDQ 12\"","offer_id":43382077849689,"sku":"PO ID 12D-S IDQ GW 4ohm","price":939.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Box Only","offer_id":43382077882457,"sku":"PO ID 12D-S IDQ G None","price":359.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Add 2 Dual 2ohm IDQ 12\"","offer_id":43382077915225,"sku":"PO ID 12D-S IDQ G 2ohm","price":919.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Add 2 Dual 4ohm IDQ 12\"","offer_id":43382077947993,"sku":"PO ID 12D-S IDQ G 4ohm","price":919.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-dual-sealed-10-enclosure-image-dynamics-idq-10subwoofer-enclosuresproline-x-6919893.webp?v=1779355145"},{"product_id":"performance-optimized-sealed-12-enclosure-image-dynamics-idq-12","title":"Performance Optimized Sealed 12\" Enclosure | Image Dynamics IDQ 12","description":"\u003cdiv class=\"po-desc\"\u003e\n\u003cstyle\u003e\n  .po-desc {\n    --po-dark: #0f172a;\n    --po-deep: #0e7490;\n    --po-accent: #06b6d4;\n    --po-tint: #f0f9ff;\n    --po-line: #cfe8f3;\n    --po-text: #1a2233;\n    --po-muted: #4a5568;\n    max-width: 1200px;\n    margin: 0 auto;\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: var(--po-text) !important;\n    line-height: 1.6;\n  }\n  .po-desc * { box-sizing: border-box; }\n  .po-hero {\n    background: linear-gradient(135deg, var(--po-dark) 0%, #134e63 55%, var(--po-deep) 100%);\n    color: #fff !important;\n    padding: 56px 44px;\n    border-radius: 14px;\n    text-align: center;\n  }\n  .po-hero .po-eyebrow {\n    display: inline-block;\n    font-size: 13px;\n    letter-spacing: 2.5px;\n    text-transform: uppercase;\n    color: #7dd3fc !important;\n    font-weight: 700;\n    margin-bottom: 16px;\n  }\n  .po-hero h2 {\n    font-size: 34px;\n    line-height: 1.2;\n    margin: 0 0 14px;\n    color: #fff !important;\n    font-weight: 800;\n  }\n  .po-hero p {\n    font-size: 18px;\n    color: #d6f0fa !important;\n    max-width: 760px;\n    margin: 0 auto;\n  }\n  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background: #ecfbff;\n    padding: 20px 24px;\n    border-radius: 0 10px 10px 0;\n    margin: 22px 0 0;\n  }\n  .po-highlight p { margin: 0; font-size: 16px; }\n  .po-grid {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    gap: 20px;\n    margin-top: 24px;\n  }\n  @media (max-width: 720px) { .po-grid { grid-template-columns: 1fr; } }\n  .po-card {\n    background: #ffffff;\n    border: 1px solid var(--po-line);\n    border-radius: 12px;\n    padding: 26px;\n  }\n  .po-card-label {\n    display: inline-block;\n    font-size: 11.5px;\n    letter-spacing: 1.5px;\n    text-transform: uppercase;\n    color: var(--po-accent) !important;\n    font-weight: 700;\n    margin-bottom: 10px;\n  }\n  .po-card h4 {\n    font-size: 18.5px;\n    margin: 0 0 12px;\n    color: var(--po-deep) !important;\n    font-weight: 700;\n  }\n  .po-card-divider {\n    width: 42px;\n    height: 3px;\n    background: var(--po-accent);\n    border-radius: 2px;\n    margin: 0 0 14px;\n  }\n  .po-card p { font-size: 15.5px; color: var(--po-muted) !important; margin: 0; }\n  .po-stats {\n    display: grid;\n    grid-template-columns: repeat(3, 1fr);\n    gap: 16px;\n    margin-top: 22px;\n  }\n  @media (max-width: 720px) { .po-stats { grid-template-columns: 1fr; } }\n  .po-stat-cell {\n    background: linear-gradient(160deg, #134e63, var(--po-deep));\n    color: #fff !important;\n    border-radius: 12px;\n    padding: 24px 20px;\n    text-align: center;\n  }\n  .po-stat-cell .num {\n    display: block;\n    font-size: 30px;\n    font-weight: 800;\n    line-height: 1.1;\n    color: #fff !important;\n  }\n  .po-stat-cell .unit {\n    display: block;\n    font-size: 13px;\n    letter-spacing: 1px;\n    text-transform: uppercase;\n    color: #a5e3f7 !important;\n    margin-top: 8px;\n  }\n  .po-cta {\n    background: linear-gradient(135deg, var(--po-deep) 0%, #134e63 50%, var(--po-dark) 100%);\n    color: #fff !important;\n    padding: 44px;\n    border-radius: 14px;\n    text-align: center;\n    margin-top: 26px;\n  }\n  .po-cta h3 { color: #fff !important; font-size: 24px; margin: 0 0 12px; font-weight: 800; }\n  .po-cta p { color: #d6f0fa !important; font-size: 16.5px; margin: 0 auto; max-width: 680px; }\n\u003c\/style\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cspan class=\"po-eyebrow\"\u003eProline X Performance Optimized Series\u003c\/span\u003e\n    \u003ch2\u003eSealed 12\" Enclosure | Image Dynamics IDQ12 V4\u003c\/h2\u003e\n    \u003cp\u003eOne driver, one airspace, zero compromise. This driver-specific sealed enclosure is CNC-cut around the Image Dynamics IDQ12 V4's published parameters, giving one of the most musical 12s in car audio exactly the box it was engineered for.\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eCNC-Cut in Tennessee\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003ePre-Wired\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e1-Year Warranty\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch3\u003eEngineered Around the IDQ12 V4\u003c\/h3\u003e\n    \u003cp\u003eThe Image Dynamics IDQ12 V4 is a sealed-box subwoofer by design, with an EBP of 40 that tells you exactly where it belongs. This enclosure gives it 1.4 cubic feet of net internal volume, the extended portion of the IDQ12's sealed window. Compared to the tighter 1.0 cubic foot alignment, that buys deeper bass extension while preserving the transient accuracy and tonal neutrality that built the IDQ Series' sound quality reputation.\u003c\/p\u003e\n    \u003cp\u003eThe baffle is cut for the IDQ12 V4's 10.87 inch cutout, the 10.5 inch cabinet depth clears the driver's 5.91 inch mounting depth comfortably, and polyfill comes pre-installed so the enclosure performs as modeled the day it arrives.\u003c\/p\u003e\n    \u003cdiv class=\"po-stats\"\u003e\n      \u003cdiv class=\"po-stat-cell\"\u003e\n\u003cspan class=\"num\"\u003e1.4 ft³\u003c\/span\u003e\u003cspan class=\"unit\"\u003eNet Internal Volume\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"po-stat-cell\"\u003e\n\u003cspan class=\"num\"\u003e24x15x10.5\u003c\/span\u003e\u003cspan class=\"unit\"\u003eExternal Inches (WxHxD)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"po-stat-cell\"\u003e\n\u003cspan class=\"num\"\u003e500W\u003c\/span\u003e\u003cspan class=\"unit\"\u003eRMS (IDQ12 V4)\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section tint\"\u003e\n    \u003ch3\u003ePerformance Optimized Construction\u003c\/h3\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut from Langboard Elite MDF on our ShopSabre routers in Tullahoma, Tennessee, with precision V-groove and dado joinery for panel alignment and long-term sealed integrity. The baffle carries 8\/32 threaded inserts matched to the IDQ12 V4's published mounting pattern, with stainless steel machine screws included, so the driver bolts down with real hardware instead of wood screws.\u003c\/p\u003e\n    \u003cp\u003eConnections run through the Proline X ABS and carbon fiber composite terminal cup with stainless hardware and copper ring terminals, pre-wired with 12-gauge OFC to the driver position. Drop the sub in, land two wires at the cup, and the install is done.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003eThis is the same driver-specific approach as our Professional Series: airspace, cutout, and hardware locked to one driver, the Image Dynamics IDQ12 V4, rather than averaged across a class of 12s.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch3\u003eFinish It Your Way\u003c\/h3\u003e\n    \u003cp\u003eThe enclosure comes wrapped in Dark Gray Trunkliner as standard, with Plush Black carpet available as an upgrade. The front baffle accepts a colored acrylic insert in Black, Blue, Red, or White to match the build, or can be ordered without the insert for a clean, blacked-out face at a reduced price.\u003c\/p\u003e\n    \u003cp\u003eOrder the box on its own if you already have your driver, or bundle it with an IDQ12 V4 in Dual 2-ohm or Dual 4-ohm, and we ship everything together. A Dual 2-ohm driver wires to 1 ohm or 4 ohms; a Dual 4-ohm driver wires to 2 ohms or 8 ohms.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-grid\"\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eAirspace\u003c\/span\u003e\n      \u003ch4\u003e1.4 Cubic Feet, Driver-Matched\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eThe extended end of the IDQ12 V4's sealed window, set against Image Dynamics' published parameters for deeper extension.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eJoinery\u003c\/span\u003e\n      \u003ch4\u003eV-Groove + Dado Construction\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eCNC-cut Langboard Elite MDF with precision joinery for rigid panels and an airtight sealed cabinet that stays that way.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eHardware\u003c\/span\u003e\n      \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eMatched to the IDQ12 V4 mounting pattern with stainless machine screws included. Real fasteners, repeatable torque.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eWiring\u003c\/span\u003e\n      \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eProline X ABS and carbon fiber composite cup with stainless hardware and copper ring terminals, pre-wired in 12-gauge OFC.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eStyle\u003c\/span\u003e\n      \u003ch4\u003eAcrylic Insert Options\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eBlack, Blue, Red, or White front acrylic to match the build, or skip the insert for a blacked-out baffle.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003cspan class=\"po-card-label\"\u003eBundles\u003c\/span\u003e\n      \u003ch4\u003eBox Only or Loaded\u003c\/h4\u003e\n      \u003cdiv class=\"po-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eOrder the enclosure alone or bundled with an IDQ12 V4 driver in Dual 2-ohm or Dual 4-ohm.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch3\u003eThe Box the IDQ12 Deserves\u003c\/h3\u003e\n    \u003cp\u003ePrecision airspace, real hardware, and pre-wired connections, built around one driver and cut on CNC in Tennessee. Give the IDQ12 V4 500 clean watts and the right 1.4 cubic feet, and let it do what it was engineered to do.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Black \/ Box Only","offer_id":43382222192729,"sku":"PO ID 12-S IDQ BB none","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Black \/ Add a Dual 2ohm IDQ 12\"","offer_id":43382222225497,"sku":"PO ID 12-S IDQ BB 2ohm","price":579.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Black \/ Add a Dual 4ohm IDQ 12\"","offer_id":43382222258265,"sku":"PO ID 12-S IDQ BB 4ohm","price":579.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Box Only","offer_id":43382222291033,"sku":"PO ID 12-S IDQ BBL none","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Add a Dual 2ohm IDQ 12\"","offer_id":43382222323801,"sku":"PO ID 12-S IDQ BBL 2ohm","price":579.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue \/ Add a Dual 4ohm IDQ 12\"","offer_id":43382222356569,"sku":"PO ID 12-S IDQ BBL 4ohm","price":579.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red \/ Box Only","offer_id":43382222389337,"sku":"PO ID 12-S IDQ BR none","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red \/ Add a Dual 2ohm IDQ 12\"","offer_id":43382222422105,"sku":"PO ID 12-S IDQ BR 2ohm","price":579.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red \/ Add a Dual 4ohm IDQ 12\"","offer_id":43382222454873,"sku":"PO ID 12-S IDQ BR 4ohm","price":579.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White \/ Box Only","offer_id":43382222487641,"sku":"PO ID 12-S IDQ  BW none","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White \/ Add a Dual 2ohm IDQ 12\"","offer_id":43382222520409,"sku":"PO ID 12-S IDQ BW 2ohm","price":579.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White \/ Add a Dual 4ohm IDQ 12\"","offer_id":43382222553177,"sku":"PO ID 12-S IDQ BW 4ohm","price":579.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None \/ Box Only","offer_id":43382222585945,"sku":"PO ID 12-S IDQ B none","price":269.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None \/ Add a Dual 2ohm IDQ 12\"","offer_id":43382222618713,"sku":"PO ID 12-S IDQ B 2ohm","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None \/ Add a Dual 4ohm IDQ 12\"","offer_id":43382222651481,"sku":"PO ID 12-S IDQ B 4ohm","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black \/ Box Only","offer_id":43382222684249,"sku":"PO ID 12-S IDQ GB None","price":289.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black \/ Add a Dual 2ohm IDQ 12\"","offer_id":43382222717017,"sku":"PO ID 12-S 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Trunkliner \/ None \/ Add a Dual 2ohm IDQ 12\"","offer_id":43382223110233,"sku":"PO ID 12-S IDQ G 2ohm","price":539.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None \/ Add a Dual 4ohm IDQ 12\"","offer_id":43382223143001,"sku":"PO ID 12-S IDQ G 4ohm","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-sealed-10-enclosure-image-dynamics-idq-10subwoofer-enclosuresproline-x-2511067.webp?v=1779355148"},{"product_id":"performance-optimized-dual-sealed-12-enclosure-arc-audio-12-arc-series","title":"Performance Optimized Dual Sealed 12\" Enclosure | Arc Audio 12\" Arc Series","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: 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20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized | Dual Arc Audio ARC 12\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eDual 12\" Sealed Enclosure | Driver-Specific for the Arc Audio ARC Series 12\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e2.2 ft³ Net\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eCommon Chamber\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e32\" × 15\" × 12\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eLangboard Elite MDF\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTwo Arc ARC 12s in One Engineered Cabinet\u003c\/h2\u003e\n    \u003cp\u003eThe Performance Optimized Dual Sealed 12 is a 2.2 cubic foot common-chamber sealed enclosure engineered around a pair of Arc Audio ARC Series 12\" subwoofers. Total internal airspace, baffle geometry, and bracing layout are all tuned to the ARC 12's linear excursion characteristics and 350-watt RMS power handling — same driver-specific approach as the single Performance Optimized boxes, scaled to a properly loaded pair.\u003c\/p\u003e\n    \u003cp\u003eThe ARC Series is Arc Audio's balanced-performance line — enough motor to hit hard, enough refinement to stay musical. Two of them in a properly sized cabinet doesn't just double the output. It cuts the workload on each driver in half, drops distortion, extends thermal headroom, and gives you the effortless midbass presentation that separates a serious system from a loud one.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e2.2 cubic feet of net internal volume, sized specifically for a pair of Arc Audio ARC 12 drivers operating in a shared sealed environment. Each driver effectively operates against 1.1 cubic feet of airspace — the middle of Arc's specified sealed range of 0.9 to 1.25 cubic feet per driver.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy More Cone Area Sounds Better, Not Just Louder\u003c\/h2\u003e\n    \u003cp\u003eDoubling the driver count isn't about hitting bigger numbers on a meter — it's about each driver doing less work to produce the same output. Two 12s playing at moderate excursion will always sound cleaner than a single 12 working hard to hit the same SPL. Lower distortion, lower thermal compression, and a presentation that sounds easier on the ears even at high listening levels.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTwice the Cone Area\u003c\/h4\u003e\n        \u003cp\u003eTwo Arc ARC 12s deliver roughly twice the radiating area of a single 12. That extra surface area means each driver moves less to produce the same SPL, which translates directly to lower mechanical and thermal stress on each woofer.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e700 Watts RMS System Rating\u003c\/h4\u003e\n        \u003cp\u003eEach Arc ARC 12 handles 350 watts RMS. Power split across two drivers generates less heat per voice coil than the same total power into a single coil. Less heat means less thermal compression across long listening sessions.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eEffortless Midbass\u003c\/h4\u003e\n        \u003cp\u003eArc Audio's linear excursion philosophy is designed for consistent performance across all volume levels. Two ARC 12s sharing the workload push that consistency further — kick drums, bass guitar fundamentals, and vocal warmth all sit cleaner because neither driver is straining.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSound Quality at Volume\u003c\/h4\u003e\n        \u003cp\u003eThe biggest practical difference between one Arc ARC 12 and two: you can listen at higher volumes without the system starting to sound stressed. At any given SPL, the pair is operating well below either driver's mechanical or thermal limits.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered Around the Arc ARC 12's Parameters\u003c\/h2\u003e\n    \u003cp\u003eArc Audio specifies the ARC Series 12 for sealed enclosures between 0.9 and 1.25 cubic feet per driver. The Performance Optimized Dual Sealed 12 delivers 2.2 cubic feet total, which gives each ARC 12 access to 1.1 cubic feet of effective airspace — the middle of Arc's specified range, where the driver's linear excursion behavior and thermal characteristics both perform optimally.\u003c\/p\u003e\n    \u003ch3\u003eVolume Selection\u003c\/h3\u003e\n    \u003cp\u003e2.2 cubic feet net is the total internal volume after material thickness, bracing, and driver displacement. With two ARC 12s sharing the cabinet, each driver effectively operates against 1.1 cubic feet of air spring — the SQ-oriented middle of the ARC 12's sealed range, where Qtc lands near the ideal target for clean transient response and controlled low-end extension.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eBoth baffles are cut to the Arc ARC 12's exact mounting specification. Arc Audio's proprietary four-spoke stamped steel basket with compound-curve construction and integrated cooling vents drops in cleanly, with adequate internal clearance behind both magnet structures inside the 12\" deep cabinet.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at real power levels.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the cabinet fold into shape with maximum glue surface. Dado joints lock the baffle and rear panel into the side walls — no fasteners visible from outside.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into both baffle backsides accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. Tolerances that manual fabrication can't hold — joints close cleanly, baffle concentricity stays accurate, and internal volume is consistent unit to unit. The finished cabinet weighs 45 pounds — the mass that comes from real MDF, honest construction, and no hollow corners.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle inserts to match your build. Or skip the inserts entirely (-$40) for a clean, understated look. The inserts are purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded Pair\u003c\/h3\u003e\n    \u003cp\u003eAdd a matched pair of \u003cstrong\u003eDual 2-ohm\u003c\/strong\u003e or \u003cstrong\u003eDual 4-ohm\u003c\/strong\u003e Arc Audio ARC 12 drivers directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your ARC 12s? Order the enclosure box-only and drop in the drivers you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring Two Arc ARC 12s to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eBoth drivers share a single terminal cup, pre-wired with 12-gauge OFC for clean signal transfer. The wiring configuration depends on the impedance version of the ARC 12s you run and what your amplifier is stable at.\u003c\/p\u003e\n    \u003ch3\u003eTwo Dual 2-Ohm Arc ARC 12s\u003c\/h3\u003e\n    \u003cp\u003eEach driver's coils in parallel = 1 ohm per driver. Two 1-ohm drivers in series = 2 ohms combined. Two 1-ohm drivers in parallel = 0.5 ohm combined (most monoblock amps won't handle this — verify your amp's stable load).\u003c\/p\u003e\n    \u003ch3\u003eTwo Dual 4-Ohm Arc ARC 12s\u003c\/h3\u003e\n    \u003cp\u003eEach driver's coils in parallel = 2 ohms per driver. Two 2-ohm drivers in parallel = 1 ohm combined. Two 2-ohm drivers in series = 4 ohms combined. The Dual 4-ohm version is the more flexible option for most amplifier setups.\u003c\/p\u003e\n    \u003cp\u003eArc Audio manufactures monoblock amplifiers engineered to pair specifically with their subwoofer lineup — the Arc Audio XD Series and Mini Series monoblocks in the 700-800 watt RMS range give you a fully matched system. Any quality monoblock stable at your chosen impedance will also work well.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eTwo Arc ARC 12s, Done Right\u003c\/h2\u003e\n    \u003cp\u003eDriver-specific airspace sized for a pair, Performance Series construction, and the option to bundle a matched pair of Arc Audio ARC 12 drivers in one order. The Performance Optimized Dual Sealed 12 is the cabinet Arc's ARC Series 12s were engineered to live in.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Black","offer_id":43493596823641,"sku":"PO ARC 12D-S BB none","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue","offer_id":43493596921945,"sku":"PO ARC 12D-S BBL none","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red","offer_id":43493597020249,"sku":"PO ARC 12D-S BR none","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White","offer_id":43493597118553,"sku":"PO ARC 12D-S  BW none","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None","offer_id":43493597216857,"sku":"PO ARC 12D-S B none","price":369.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black","offer_id":43493597315161,"sku":"PO ARC 12D-S GB None","price":379.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue","offer_id":43493597413465,"sku":"PO ARC 12D-S GBL None","price":379.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red","offer_id":43493597511769,"sku":"PO ARC 12D-S GR None","price":379.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White","offer_id":43493597610073,"sku":"PO ARC 12D-S GW None","price":379.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None","offer_id":43493597708377,"sku":"PO ARC 12D-S G None","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-dual-sealed-10-enclosure-arc-audio-10-arc-seriessubwoofer-enclosuresproline-x-4109294.webp?v=1783112230"},{"product_id":"performance-optimized-dual-sealed-10-enclosure-arc-audio-10-arc-series","title":"Performance Optimized Dual Sealed 10\" Enclosure | Arc Audio 10\" Arc Series","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; 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font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized | Dual Arc Audio ARC 10\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eDual 10\" Sealed Enclosure | Driver-Specific for the Arc Audio ARC Series 10\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.5 ft³ Net\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eCommon Chamber\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e28\" × 14\" × 10.5\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eLangboard Elite MDF\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTwo Arc ARC 10s in One Engineered Cabinet\u003c\/h2\u003e\n    \u003cp\u003eThe Performance Optimized Dual Sealed 10 is a 1.5 cubic foot common-chamber sealed enclosure engineered around a pair of Arc Audio ARC Series 10\" subwoofers. Total internal airspace, baffle geometry, and bracing layout are all tuned to the ARC 10's linear excursion characteristics and 250-watt RMS power handling — same driver-specific approach as the single Performance Optimized boxes, scaled to a properly loaded pair.\u003c\/p\u003e\n    \u003cp\u003eTwo Arc ARC 10s in a properly sized cabinet don't just double the output. Two 10-inch drivers deliver more total cone area than a single 12, produce cleaner transient response due to smaller cone mass, and split the workload so each driver runs cooler and with less excursion at the same SPL. The Performance Optimized Dual Sealed 10 is the cabinet that lets the ARC 10 pair do what they're engineered to do.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e1.5 cubic feet of net internal volume, sized specifically for a pair of Arc Audio ARC 10 drivers operating in a shared sealed environment. Each driver effectively operates against 0.75 cubic feet of airspace — dialed toward the SQ side of Arc Audio's specified sealed range of 0.65 to 1.1 cubic feet per driver.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy Dual 10s Instead of a Single 12\u003c\/h2\u003e\n    \u003cp\u003eDual 10s vs single 12 is one of the most persistent debates in car audio, and the honest answer depends on what you value. If you want the tightest transient response, the cleanest midbass integration, and the most efficient use of trunk space, dual 10s win. If you want maximum output per driver and a smaller total cabinet footprint, a single 12 makes sense. For the Arc ARC 10 specifically, the dual configuration plays to the driver's strengths.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eMore Total Cone Area\u003c\/h4\u003e\n        \u003cp\u003eTwo 10-inch subwoofers deliver approximately 157 square inches of combined cone area vs 113 square inches for a single 12. The extra radiating surface produces the same SPL at lower excursion per driver — cleaner sound at every volume level.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e500 Watts RMS System Rating\u003c\/h4\u003e\n        \u003cp\u003eEach Arc ARC 10 handles 250 watts RMS. Power split across two drivers generates less heat per voice coil than the same total power into a single coil. Less heat means less thermal compression across long listening sessions.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eFaster Transient Response\u003c\/h4\u003e\n        \u003cp\u003eSmaller 10-inch cones with lower moving mass respond faster to input signal changes than larger 12-inch cones. Kick drums start and stop cleanly, bass guitar articulation stays intact, and integration with midbass drivers is more natural.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eWider Cabinet, Shallower Depth\u003c\/h4\u003e\n        \u003cp\u003eThe 28\" x 14\" x 10.5\" footprint is wider than a comparable single 12 cabinet but shallower — which fits behind seats and against trunk walls better than a deeper, narrower single-driver box. Different geometry, better real-world fitment.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered Around the Arc ARC 10's Parameters\u003c\/h2\u003e\n    \u003cp\u003eArc Audio specifies the ARC Series 10 for sealed enclosures between 0.65 and 1.1 cubic feet per driver — 0.85 cubic feet as the published optimum. The Performance Optimized Dual Sealed 10 delivers 1.5 cubic feet total, which gives each ARC 10 access to 0.75 cubic feet of effective airspace — between Arc's minimum and optimum, dialed toward the SQ side of the driver's specified range for tighter transient response and cleaner midbass integration.\u003c\/p\u003e\n    \u003ch3\u003eVolume Selection\u003c\/h3\u003e\n    \u003cp\u003e1.5 cubic feet net is the total internal volume after material thickness, bracing, and driver displacement. With two ARC 10s sharing the cabinet, each driver effectively operates against 0.75 cubic feet of air spring — the SQ-oriented middle of the ARC 10's sealed range, where Qtc lands where it should for balanced transient response and controlled low-end extension.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eBoth baffles are cut to the Arc ARC 10's exact mounting specification. The ARC 10's 5.5\" mounting depth leaves comfortable internal clearance behind both magnet structures inside the 10.5\" deep cabinet. Arc Audio's proprietary four-spoke stamped steel basket with compound-curve construction and integrated cooling vents drops in cleanly with room for magnet ventilation.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at real power levels.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the cabinet fold into shape with maximum glue surface. Dado joints lock the baffle and rear panel into the side walls — no fasteners visible from outside.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into both baffle backsides accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. Tolerances that manual fabrication can't hold — joints close cleanly, baffle concentricity stays accurate, and internal volume is consistent unit to unit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle inserts to match your build. Or skip the inserts entirely (-$40) for a clean, understated look. The inserts are purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded Pair\u003c\/h3\u003e\n    \u003cp\u003eAdd a matched pair of \u003cstrong\u003eDual 2-ohm\u003c\/strong\u003e or \u003cstrong\u003eDual 4-ohm\u003c\/strong\u003e Arc Audio ARC 10 drivers directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your ARC 10s? Order the enclosure box-only and drop in the drivers you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring Two Arc ARC 10s to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eBoth drivers share a single terminal cup, pre-wired with 12-gauge OFC for clean signal transfer. The wiring configuration depends on the impedance version of the ARC 10s you run and what your amplifier is stable at.\u003c\/p\u003e\n    \u003ch3\u003eTwo Dual 2-Ohm Arc ARC 10s\u003c\/h3\u003e\n    \u003cp\u003eEach driver's coils in parallel = 1 ohm per driver. Two 1-ohm drivers in series = 2 ohms combined. Two 1-ohm drivers in parallel = 0.5 ohm combined (most monoblock amps won't handle this — verify your amp's stable load).\u003c\/p\u003e\n    \u003ch3\u003eTwo Dual 4-Ohm Arc ARC 10s\u003c\/h3\u003e\n    \u003cp\u003eEach driver's coils in parallel = 2 ohms per driver. Two 2-ohm drivers in parallel = 1 ohm combined. Two 2-ohm drivers in series = 4 ohms combined. The Dual 4-ohm version is the more flexible option for most amplifier setups.\u003c\/p\u003e\n    \u003cp\u003eArc Audio manufactures monoblock amplifiers engineered to pair specifically with their subwoofer lineup — the Arc Audio XD Series and Mini Series monoblocks in the 500 to 600 watt RMS range give you a fully matched system. Any quality monoblock stable at your chosen impedance will also work well.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eTwo Arc ARC 10s, Done Right\u003c\/h2\u003e\n    \u003cp\u003eDriver-specific airspace sized for a pair, Performance Series construction, and the option to bundle a matched pair of Arc Audio ARC 10 drivers in one order. The Performance Optimized Dual Sealed 10 is the cabinet Arc's ARC Series 10s were engineered to live in.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Black","offer_id":43493662490713,"sku":"PO ARC 10D-S BB none","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue","offer_id":43493662523481,"sku":"PO ARC 10D-S BBL none","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red","offer_id":43493662556249,"sku":"PO ARC 10D-S BR none","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White","offer_id":43493662589017,"sku":"PO ARC 10D-S  BW none","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None","offer_id":43493662621785,"sku":"PO ARC 10D-S B none","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black","offer_id":43493662654553,"sku":"PO ARC 10D-S GB None","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue","offer_id":43493662687321,"sku":"PO ARC 10D-S GBL None","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red","offer_id":43493662720089,"sku":"PO ARC 10D-S GR None","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White","offer_id":43493662752857,"sku":"PO ARC 10D-S GW None","price":329.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None","offer_id":43493662785625,"sku":"PO ARC 10D-S G None","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-dual-sealed-10-enclosure-arc-audio-10-arc-seriessubwoofer-enclosuresproline-x-4109294.webp?v=1783112230"},{"product_id":"performance-optimized-sealed-10-enclosure-arc-audio-10-arc-series","title":"Performance Optimized Sealed 10\" Enclosure | Arc Audio 10\" Arc Series","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized | Arc Audio ARC 10\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 10\" Sealed Enclosure | Driver-Specific for the Arc Audio ARC Series 10\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e0.75 ft³ Net\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eThreaded Inserts\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e20\" × 14\" × 8.25\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eLangboard Elite MDF\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Arc Audio ARC 10 Deserves a Box Built for It\u003c\/h2\u003e\n    \u003cp\u003eThe Arc Audio ARC Series 10 is engineered around a linear excursion philosophy — consistent mechanical and electrical behavior across the full excursion range, high-temperature black anodized voice coils, and a four-spoke stamped steel basket with compound curves designed to eliminate resonance. Drop it in a generic box and you'll get good bass. Drop it in a cabinet engineered around its published Thiele-Small parameters and you'll hear what Arc's engineering team built it to do.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Sealed 10 for Arc Audio ARC 10 is that cabinet. Internal volume, baffle thickness, and mounting hardware are all chosen to extract the ARC 10's full mechanical and acoustic potential — not approximated, not averaged across a class of 10s, not adapted from a universal box.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003eThis enclosure is engineered specifically around the Arc Audio ARC Series 10. The 0.75 cubic foot net volume is dialed toward the SQ side of Arc Audio's specified sealed range of 0.65 to 1.1 cubic feet — the sweet spot for the driver's linear excursion behavior.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy Performance Optimized Sits Where It Does\u003c\/h2\u003e\n    \u003cp\u003eThe Performance Optimized line is the bridge between our standard Performance Series and our top-tier Professional Series. Same Performance-tier construction quality — Langboard Elite MDF, V-groove and dado joinery, ShopSabre CNC routing — but the geometry of every panel is cut around one specific driver instead of a class of drivers.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003evs Performance Series\u003c\/h4\u003e\n        \u003cp\u003eStandard Performance Series boxes (P6 through P15) are built for universal driver fitment within a size class. Great if you want flexibility across multiple driver options. Performance Optimized takes the same construction and locks the airspace and hardware to one specific driver.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003evs Professional Series\u003c\/h4\u003e\n        \u003cp\u003eProfessional Series uses extensive multi-layer baffles, triple-stacked construction, and a 2-year warranty for the most demanding builds. Performance Optimized delivers driver-specific engineering at a more accessible price point with a 1-year warranty.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered Around the Arc ARC 10's Parameters\u003c\/h2\u003e\n    \u003cp\u003eArc Audio specifies the ARC Series 10 for sealed enclosures between 0.65 and 1.1 cubic feet — 0.85 cubic feet as the published optimum. The Performance Optimized Sealed 10 delivers 0.75 cubic feet net, sitting between Arc's minimum and optimum values — dialed toward the SQ side of the driver's specified range for tighter transient response, cleaner midbass integration, and controlled low-end presentation.\u003c\/p\u003e\n    \u003ch3\u003eVolume Selection\u003c\/h3\u003e\n    \u003cp\u003e0.75 cubic feet net is the airspace that lets the Arc ARC 10 work in its sweet spot for musical accuracy. Larger volumes push the driver toward the SPL-oriented end of Arc's specified range, trading transient tightness for a small extension gain. 0.75 cubic feet delivers the SQ-oriented presentation the ARC 10 is engineered for.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe baffle is cut to the Arc ARC 10's exact mounting specification. The ARC 10's 5.5\" mounting depth leaves comfortable internal clearance behind the magnet structure inside the 8.25\" deep cabinet. Arc Audio's four-spoke stamped steel basket with integrated cooling vents drops in cleanly with room for magnet ventilation.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at real power levels.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the cabinet fold into shape with maximum glue surface. Dado joints lock the baffle and rear panel into the side walls — no fasteners visible from outside.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the baffle backside accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. Tolerances that manual fabrication can't hold — joints close cleanly, baffle concentricity stays accurate, and internal volume is consistent unit to unit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a \u003cstrong\u003eDual 2-ohm\u003c\/strong\u003e or \u003cstrong\u003eDual 4-ohm\u003c\/strong\u003e Arc Audio ARC 10 driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your ARC 10? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Arc ARC 10 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Arc Audio ARC 10 is a dual voice coil driver available in Dual 2-ohm (D2) or Dual 4-ohm (D4) configurations. The pre-wired terminal cup accepts either impedance version via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003eA Dual 2-ohm ARC 10 wired in parallel presents a 1-ohm load. A Dual 2-ohm wired in series presents 4 ohms. A Dual 4-ohm ARC 10 wired in parallel presents 2 ohms, and wired in series presents 8 ohms. The ARC 10 is rated for 250 watts RMS — aim for a clean, well-regulated amplifier delivering 200 to 300 watts at your chosen impedance.\u003c\/p\u003e\n    \u003cp\u003eArc Audio manufactures monoblock amplifiers engineered to pair specifically with their subwoofer lineup — the Arc Audio XD Series and Mini Series monoblocks in the 250 to 350 watt RMS range give you a fully matched system. Any quality monoblock stable at your chosen impedance will also work well.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eStop Compromising Your Arc ARC 10\u003c\/h2\u003e\n    \u003cp\u003eDriver-specific engineering, Performance Series construction, and the option to bundle the Arc Audio ARC 10 driver in one order. Build the box that was designed for the sub you've already chosen.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Black","offer_id":43493859623001,"sku":"PO ARC 10-S BB none","price":259.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue","offer_id":43493859655769,"sku":"PO ARC 10-S BBL none","price":259.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red","offer_id":43493859688537,"sku":"PO ARC 10-S BR none","price":259.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White","offer_id":43493859721305,"sku":"PO ARC 10-S  BW none","price":259.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None","offer_id":43493859754073,"sku":"PO ARC 10-S B none","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black","offer_id":43493859786841,"sku":"PO ARC 10-S GB None","price":259.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue","offer_id":43493859819609,"sku":"PO ARC 10-S GBL None","price":259.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red","offer_id":43493859852377,"sku":"PO ARC 10-S GR None","price":259.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White","offer_id":43493859885145,"sku":"PO ARC 10-S GW None","price":259.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None","offer_id":43493859917913,"sku":"PO ARC 10-S G None","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-sealed-10-enclosure-arc-audio-10-arc-seriessubwoofer-enclosuresproline-x-4489032.webp?v=1783112228"},{"product_id":"performance-optimized-sealed-12-enclosure-arc-audio-12-arc-series","title":"Performance Optimized Sealed 12\" Enclosure | Arc Audio 12\" Arc Series","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized | Arc Audio ARC 12\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 12\" Sealed Enclosure | Driver-Specific for the Arc Audio ARC Series 12\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.1 ft³ Net\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eThreaded Inserts\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e24\" × 15\" × 9\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eLangboard Elite MDF\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Arc Audio ARC 12 Deserves a Box Built for It\u003c\/h2\u003e\n    \u003cp\u003eThe Arc Audio ARC Series 12 is engineered around a linear excursion philosophy — consistent mechanical and electrical behavior across the full excursion range, high-temperature black anodized voice coils, and a four-spoke stamped steel basket with compound curves designed to eliminate resonance. Drop it in a generic box and you'll get good bass. Drop it in a cabinet engineered around its published Thiele-Small parameters and you'll hear what Arc's engineering team built it to do.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Sealed 12 for Arc Audio ARC 12 is that cabinet. Internal volume, baffle thickness, and mounting hardware are all chosen to extract the ARC 12's full mechanical and acoustic potential — not approximated, not averaged across a class of 12s, not adapted from a universal box.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003eThis enclosure is engineered specifically around the Arc Audio ARC Series 12. The 1.1 cubic foot net volume sits in the middle of Arc Audio's specified sealed range of 0.9 to 1.25 cubic feet — the sweet spot for the driver's linear excursion behavior and balanced transient response.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy Performance Optimized Sits Where It Does\u003c\/h2\u003e\n    \u003cp\u003eThe Performance Optimized line is the bridge between our standard Performance Series and our top-tier Professional Series. Same Performance-tier construction quality — Langboard Elite MDF, V-groove and dado joinery, ShopSabre CNC routing — but the geometry of every panel is cut around one specific driver instead of a class of drivers.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003evs Performance Series\u003c\/h4\u003e\n        \u003cp\u003eStandard Performance Series boxes (P6 through P15) are built for universal driver fitment within a size class. Great if you want flexibility across multiple driver options. Performance Optimized takes the same construction and locks the airspace and hardware to one specific driver.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003evs Professional Series\u003c\/h4\u003e\n        \u003cp\u003eProfessional Series uses extensive multi-layer baffles, triple-stacked construction, and a 2-year warranty for the most demanding builds. Performance Optimized delivers driver-specific engineering at a more accessible price point with a 1-year warranty.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered Around the Arc ARC 12's Parameters\u003c\/h2\u003e\n    \u003cp\u003eArc Audio specifies the ARC Series 12 for sealed enclosures between 0.9 and 1.25 cubic feet. The Performance Optimized Sealed 12 delivers 1.1 cubic feet net — the middle of Arc's specified range, where Qtc lands where it should for balanced transient response and controlled low-end extension. Not so tight that you lose extension, not so loose that you lose punch.\u003c\/p\u003e\n    \u003ch3\u003eVolume Selection\u003c\/h3\u003e\n    \u003cp\u003e1.1 cubic feet net is the sweet spot in Arc's published sealed range for the ARC 12. Volumes below 0.9 cubic feet overdamp the driver and dry out the bottom end. Volumes above 1.25 cubic feet loosen the response and compromise transient tightness. 1.1 cubic feet sits in the balanced middle — the volume Arc's engineering team would build if they were building a sealed box for their own driver.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe baffle is cut to the Arc ARC 12's exact mounting specification. Arc Audio's four-spoke stamped steel basket with compound-curve construction and integrated cooling vents drops in cleanly with room behind the magnet structure for adequate ventilation inside the 9\" deep cabinet.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at real power levels.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the cabinet fold into shape with maximum glue surface. Dado joints lock the baffle and rear panel into the side walls — no fasteners visible from outside.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the baffle backside accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. Tolerances that manual fabrication can't hold — joints close cleanly, baffle concentricity stays accurate, and internal volume is consistent unit to unit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a \u003cstrong\u003eDual 2-ohm\u003c\/strong\u003e or \u003cstrong\u003eDual 4-ohm\u003c\/strong\u003e Arc Audio ARC 12 driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your ARC 12? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Arc ARC 12 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Arc Audio ARC 12 is a dual voice coil driver available in Dual 2-ohm (D2) or Dual 4-ohm (D4) configurations. The pre-wired terminal cup accepts either impedance version via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003eA Dual 2-ohm ARC 12 wired in parallel presents a 1-ohm load. A Dual 2-ohm wired in series presents 4 ohms. A Dual 4-ohm ARC 12 wired in parallel presents 2 ohms, and wired in series presents 8 ohms. The ARC 12 is rated for 350 watts RMS — aim for a clean, well-regulated amplifier delivering 300 to 400 watts at your chosen impedance.\u003c\/p\u003e\n    \u003cp\u003eArc Audio manufactures monoblock amplifiers engineered to pair specifically with their subwoofer lineup — the Arc Audio XD Series and Mini Series monoblocks in the 350 to 500 watt RMS range give you a fully matched system. Any quality monoblock stable at your chosen impedance will also work well.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eStop Compromising Your Arc ARC 12\u003c\/h2\u003e\n    \u003cp\u003eDriver-specific engineering, Performance Series construction, and the option to bundle the Arc Audio ARC 12 driver in one order. Build the box that was designed for the sub you've already chosen.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Black","offer_id":43494021464153,"sku":"PO ARC 12-S BB none","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue","offer_id":43494021496921,"sku":"PO ARC 12-S BBL none","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red","offer_id":43494021529689,"sku":"PO ARC 12-S BR none","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White","offer_id":43494021562457,"sku":"PO ARC 12-S  BW none","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None","offer_id":43494021595225,"sku":"PO ARC 12-S B none","price":269.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Black","offer_id":43494021627993,"sku":"PO ARC 12-S GB None","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Blue","offer_id":43494021660761,"sku":"PO ARC 12-S GBL None","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ Red","offer_id":43494021693529,"sku":"PO ARC 12-S GR None","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ White","offer_id":43494021726297,"sku":"PO ARC 12-S GW None","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Trunkliner \/ None","offer_id":43494021759065,"sku":"PO ARC 12-S G None","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-sealed-10-enclosure-arc-audio-10-arc-seriessubwoofer-enclosuresproline-x-4489032.webp?v=1783112228"},{"product_id":"performance-optimized-sealed-dual-12-enclosure-stereo-integrity-12-sql-series","title":"Proline X PO12D-S SI | Dual 12\" Sealed Subwoofer Enclosure | Built for Stereo Integrity SQL","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized | Dual Stereo Integrity SQL 12\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eDual 12\" Sealed Enclosure | Isolated Chambers | Dual Mounting Face for the SQL 12 Series 2\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e2.0 ft³ Net Total\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eIsolated Chambers\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e1.0 ft³ Per Chamber\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e31\" × 15\" × 13.625\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDouble Baffle\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTwo Stereo Integrity SQL 12s, Each in Their Own Engineered Chamber\u003c\/h2\u003e\n    \u003cp\u003eThe Performance Optimized Dual Sealed 12 for the Stereo Integrity SQL 12 is a fully chambered sealed enclosure engineered around a pair of SQL 12 Series 2 subwoofers. Two isolated 1.0 cubic foot chambers, separated by a center divider, each tuned to the SQL 12's published Thiele-Small parameters. Dual mounting face design gives each driver its own dedicated baffle. No shared airspace, no acoustic crosstalk between drivers, no compromise from doubling up in a common chamber.\u003c\/p\u003e\n    \u003cp\u003eThis is not the same construction as our common-chamber PO duals. The SQL 12 is a serious high-power driver — 1000 watts RMS per unit, 26mm one-way linear Xmax, and enough motor force to move meaningful air. At those power and excursion levels, isolated chambers stop being nice-to-have and become the correct engineering answer. Each SQL 12 operates in its own dedicated acoustic environment, unaffected by what the other driver is doing at any given moment.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003eEach SQL 12 gets its own sealed 1.0 cubic foot chamber — the maximum sealed volume Stereo Integrity specifies for the SQL 12 Series 2. The chambered design means each driver operates as if it were in its own dedicated single enclosure, with a center divider that also serves as structural bracing.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy Isolated Chambers Matter at This Power Level\u003c\/h2\u003e\n    \u003cp\u003eFor lower-power dual subwoofer systems in the 300-500 watt per driver range, a common chamber works fine. Matched driver pairs load symmetrically, and shared airspace introduces minimal interaction. At the SQL 12's 1000 watt RMS per driver rating, the calculation changes. Higher power means more cone excursion, more thermal load, and more asymmetric behavior between the two drivers as they respond to different thermal and mechanical states in real time. Isolated chambers eliminate that variable entirely.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSymmetric Loading Under Real Power\u003c\/h4\u003e\n        \u003cp\u003eEach SQL 12 operates against its own dedicated 1.0 cubic foot airspace. If one driver's voice coil resistance rises from heat faster than the other, or if one driver breaks in at a slightly different rate, the pair still performs consistently because they aren't coupled through shared air.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eForce Cancellation Benefits\u003c\/h4\u003e\n        \u003cp\u003eThe dual mounting face design creates opposing forces that partially cancel through the cabinet structure. Less mechanical energy transferred to the vehicle chassis, less rattle in trim panels, and cleaner perceived output because the cabinet itself is doing less unwanted work.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eStructural Rigidity\u003c\/h4\u003e\n        \u003cp\u003eThe center divider acts as a full-length brace in addition to its acoustic role. The 31\" cabinet width is split into two 15.5\" panel sections structurally, dramatically reducing panel flex compared to an unbraced wide interior at the power levels the SQL 12 delivers.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePredictable Behavior at Full Excursion\u003c\/h4\u003e\n        \u003cp\u003eThe SQL 12's 26mm one-way Xmax means significant air displacement per stroke. Isolated chambers guarantee each driver's air spring stays consistent through the full excursion range, without pressure variations from the second driver influencing the first.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered Around the SQL 12's Parameters\u003c\/h2\u003e\n    \u003cp\u003eStereo Integrity specifies the SQL 12 Series 2 for sealed enclosures between 0.65 and 1.0 cubic feet per driver. The Performance Optimized Dual Sealed 12 delivers 1.0 cubic foot per chamber — the upper end of SI's specified range, where the SQL's deep low-end extension characteristics fully develop. In a properly sized cabinet, the SQL 12 plays down to F3 points in single-digit territory, delivering the low-frequency response that makes SI's SQL series unmatched at its price point.\u003c\/p\u003e\n    \u003ch3\u003eVolume Selection\u003c\/h3\u003e\n    \u003cp\u003e1.0 cubic foot per chamber is the maximum of SI's recommended sealed volume range. Smaller volumes tighten Qtc and lose some low-end extension. Larger volumes fall outside SI's specification and compromise transient control. 1.0 cubic foot per driver is where the SQL 12 delivers on its full low-end capability while staying inside the driver's engineered operating window.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eBoth baffles are cut to the SQL 12's exact 11.33\" cutout specification and doubled to 1.5\" total thickness at the mounting position. The SQL 12's 7\" mounting depth leaves comfortable internal clearance inside the 13.625\" deep cabinet. Each driver has its own dedicated mounting face — a true dual-face design that separates the two drivers acoustically and mechanically, with 8\/32 threaded inserts pressed into the doubled baffle stock for secure, full-depth mounting.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eDouble Baffle Mounting Faces\u003c\/h4\u003e\n        \u003cp\u003eEach of the two mounting faces uses a doubled 1.5\" total baffle thickness — two layers of 3\/4\" Langboard Elite MDF bonded together at the driver mounting position. Doubled baffle stock resists baffle flex and mounting screw pullout at the power levels the SQL 12 delivers.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts Into Double Baffle\u003c\/h4\u003e\n        \u003cp\u003eBoth baffles use 8\/32 threaded inserts pressed into the doubled 1.5\" MDF backside, providing full-depth thread engagement for the supplied stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, and secure retention at high excursion levels.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the cabinet fold into shape with maximum glue surface. Dado joints lock the doubled baffles, rear panel, and center divider into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cups (×2)\u003c\/h4\u003e\n        \u003cp\u003eOne Proline X ABS\/carbon fiber composite terminal cup per chamber, each pre-wired with 12-gauge OFC. Wire each driver to its own amp channel for maximum control, or jumper the cups externally for a single-channel pair.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The center divider is dadoed into the top, bottom, and rear panels for maximum mechanical lock — not just glued in. Both mounting baffles are doubled to 1.5\" total thickness at the mounting positions. Internal volume is verified per chamber on every unit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle inserts to match your build. Or skip the inserts entirely (-$40) for a clean, understated look. The inserts are purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded Pair\u003c\/h3\u003e\n    \u003cp\u003eAdd a matched pair of Stereo Integrity SQL 12 Series 2 drivers directly to your order in \u003cstrong\u003eDual 2-ohm or Dual 4-ohm\u003c\/strong\u003e and \u003cstrong\u003ePaper or Carbon Fiber\u003c\/strong\u003e dust cap configurations. Already own your SQL 12s? Order the enclosure box-only and drop in the drivers you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring Two SQL 12s to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eEach chamber has its own dedicated terminal cup, pre-wired with 12-gauge OFC. The two cups can be jumpered externally for a single-amp installation, or wired independently for dual monoblock or multi-channel amplifier setups.\u003c\/p\u003e\n    \u003ch3\u003eTwo Dual 2-Ohm SQL 12s\u003c\/h3\u003e\n    \u003cp\u003eEach driver's coils in parallel = 1 ohm per driver. Two 1-ohm drivers in parallel = 0.5 ohm combined (most monoblocks won't handle this — verify your amp). Two 1-ohm drivers in series = 2 ohms combined. Each driver on its own monoblock at 1 ohm gives you the cleanest high-power setup.\u003c\/p\u003e\n    \u003ch3\u003eTwo Dual 4-Ohm SQL 12s\u003c\/h3\u003e\n    \u003cp\u003eEach driver's coils in parallel = 2 ohms per driver. Two 2-ohm drivers in parallel = 1 ohm combined. Two 2-ohm drivers in series = 4 ohms combined. Dual 4-ohm is the more flexible option for most amplifier setups at these power levels.\u003c\/p\u003e\n    \u003cp\u003eThe SQL 12 pair is rated for 2000 watts RMS combined. Aim for a clean, well-regulated amplifier or amplifier pair delivering 1500 to 2000 watts total at your chosen impedance. At this power level, amplifier quality matters more than headline numbers — regulated power supply, low THD, and honest RMS ratings.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eTwo SQL 12s, Engineered Correctly\u003c\/h2\u003e\n    \u003cp\u003eIsolated chamber design, dual mounting face, driver-specific 1.0 cubic foot chambers, and Performance Series construction built for the power levels the SQL 12 delivers. The correct cabinet for a serious pair of SIs.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Black","offer_id":43786903289945,"sku":"PO12D-S SI BB","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue","offer_id":43786903322713,"sku":"PO12D-S SI BBL","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red","offer_id":43786903355481,"sku":"PO12D-S SI BR","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White","offer_id":43786903388249,"sku":"PO12D-S SI BW","price":389.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None","offer_id":43786903421017,"sku":"PO12D-S SI B","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-sealed-dual-12-enclosure-stereo-integrity-12-sql-seriessubwoofer-enclosuresproline-x-3250530.png?v=1784976188"},{"product_id":"performance-optimized-sealed-12-enclosure-stereo-integrity-12-sql-series","title":"Proline X PO12-S SI | Single 12\" Sealed Subwoofer Enclosure | Built for Stereo Integrity SQL","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized | Stereo Integrity SQL 12\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 12\" Sealed Enclosure | Driver-Specific for the SQL 12 Series 2\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.0 ft³ Net\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDouble Baffle\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e20\" × 15\" × 13.625\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Stereo Integrity SQL 12 Deserves a Box Built for It\u003c\/h2\u003e\n    \u003cp\u003eThe Stereo Integrity SQL 12 Series 2 is a serious high-power driver — 1000 watts RMS, 26mm one-way linear Xmax, 2.75\" copper voice coil on a split black anodized aluminum former, and enough motor force to move meaningful air in a properly sized sealed cabinet. Drop it in a generic box and you'll get loud bass. Drop it in a cabinet engineered around SI's published Thiele-Small parameters, with construction sized for the power level the SQL 12 delivers, and you'll hear what Nick Sowa's team built this driver to do.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Sealed 12 for Stereo Integrity SQL 12 is that cabinet. Internal volume, baffle thickness, mounting hardware, and construction methods are all chosen to extract the SQL 12's full mechanical and acoustic potential — and to hold together as a rigid structure at the power levels this driver is capable of.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003eThis enclosure is engineered specifically around the Stereo Integrity SQL 12 Series 2. The 1.0 cubic foot net volume matches the maximum sealed volume SI specifies for the SQL 12 — where the driver's deep low-end extension fully develops with F3 points in single-digit territory.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy Performance Optimized Sits Where It Does\u003c\/h2\u003e\n    \u003cp\u003eThe Performance Optimized line is the bridge between our standard Performance Series and our top-tier Professional Series. Same Performance-tier construction quality — Langboard Elite MDF, V-groove and dado joinery, ShopSabre CNC routing — but the geometry of every panel is cut around one specific driver instead of a class of drivers. For the SQL 12 specifically, that also means doubled baffle stock at the mounting position to handle the driver's power capability.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003evs Performance Series\u003c\/h4\u003e\n        \u003cp\u003eStandard Performance Series boxes (P6 through P15) are built for universal driver fitment within a size class. Great if you want flexibility across multiple driver options. Performance Optimized takes the same construction foundation and locks the airspace and hardware to one specific driver.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003evs Professional Series\u003c\/h4\u003e\n        \u003cp\u003eProfessional Series uses extensive multi-layer baffles, triple-stacked construction, and a 2-year warranty for the most demanding builds. Performance Optimized delivers driver-specific engineering with double baffle construction at a more accessible price point with a 1-year warranty.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered Around the SQL 12's Parameters\u003c\/h2\u003e\n    \u003cp\u003eStereo Integrity specifies the SQL 12 Series 2 for sealed enclosures between 0.65 and 1.0 cubic feet. The Performance Optimized Sealed 12 delivers 1.0 cubic feet net — the maximum of SI's specified range, where the SQL's deep low-end extension characteristics fully develop. In this cabinet, the SQL 12 plays down to F3 points in single-digit territory, delivering the low-frequency response that makes SI's SQL Series unmatched at its price point.\u003c\/p\u003e\n    \u003ch3\u003eVolume Selection\u003c\/h3\u003e\n    \u003cp\u003e1.0 cubic foot net is the maximum of SI's recommended sealed volume range. Smaller volumes tighten Qtc and lose some low-end extension. Larger volumes fall outside SI's specification and compromise transient control. 1.0 cubic foot is where the SQL 12 delivers on its full low-end capability while staying inside the driver's engineered operating window.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe baffle is cut to the SQL 12's exact 11.33\" cutout specification and doubled to 1.5\" total thickness at the mounting position. The SQL 12's 7\" mounting depth leaves comfortable internal clearance inside the 13.625\" deep cabinet. 8\/32 threaded inserts are pressed into the doubled baffle stock for full-depth thread engagement and secure retention at high excursion levels.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Sized for Real Power\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eDouble Baffle Mounting Face\u003c\/h4\u003e\n        \u003cp\u003eThe mounting face uses a doubled 1.5\" total baffle thickness — two layers of 3\/4\" Langboard Elite MDF bonded together at the driver mounting position. Doubled baffle stock resists baffle flex and mounting screw pullout at the 1000-watt RMS power levels the SQL 12 delivers.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts Into Double Baffle\u003c\/h4\u003e\n        \u003cp\u003eThe baffle uses 8\/32 threaded inserts pressed into the doubled 1.5\" MDF backside, providing full-depth thread engagement for the supplied stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, and secure retention at high excursion levels.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the cabinet fold into shape with maximum glue surface. Dado joints lock the doubled baffle and rear panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. Tolerances that manual fabrication can't hold — joints close cleanly, baffle concentricity stays accurate, and internal volume is consistent unit to unit. The doubled baffle at the mounting position is bonded under clamping pressure for a monolithic 1.5\" stock at the point where structural integrity matters most.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the front baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a Stereo Integrity SQL 12 Series 2 driver directly to your order in \u003cstrong\u003eDual 2-ohm or Dual 4-ohm\u003c\/strong\u003e impedance and \u003cstrong\u003ePaper or Carbon Fiber\u003c\/strong\u003e dust cap configurations. Already own your SQL 12? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the SQL 12 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Stereo Integrity SQL 12 is a dual voice coil driver available in Dual 2-ohm (D2) or Dual 4-ohm (D4) configurations. The pre-wired terminal cup accepts either impedance version via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003eA Dual 2-ohm SQL 12 wired in parallel presents a 1-ohm load. A Dual 2-ohm wired in series presents 4 ohms. A Dual 4-ohm SQL 12 wired in parallel presents 2 ohms, and wired in series presents 8 ohms. The SQL 12 is rated for 1000 watts RMS — aim for a clean, well-regulated amplifier delivering 750 to 1000 watts at your chosen impedance. At this power level, amplifier quality matters more than headline numbers — regulated power supply, low THD, and honest RMS ratings.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eThe SQL 12, Engineered Correctly\u003c\/h2\u003e\n    \u003cp\u003eDriver-specific 1.0 cubic foot airspace, doubled baffle construction, V-groove and dado joinery, and Performance Series build quality sized for the SQL 12's 1000-watt RMS capability. The correct cabinet for a serious single 12 build.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Black","offer_id":43793847812185,"sku":"PO12-S SI BB","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Blue","offer_id":43793847844953,"sku":"PO12-S SI BBL","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Red","offer_id":43793847877721,"sku":"PO12-S SI BR","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ White","offer_id":43793847910489,"sku":"PO12-S SI BW","price":299.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ None","offer_id":43793847943257,"sku":"PO12-S SI B","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/performance-optimized-sealed-12-enclosure-stereo-integrity-12-sql-seriessubwoofer-enclosuresproline-x-6363168.png?v=1784976188"},{"product_id":"performance-optimized-down-fire-sealed-10-dual-enclosure-audiomobile-gt2","title":"Performance Optimized Down Fire Sealed 10\" Dual Enclosure | Audiomobile GT2","description":"\u003cdiv class=\"podf-wrap\"\u003e\n\u003cstyle\u003e\n.podf-wrap{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;line-height:1.7;color:#cbd5e1 !important;}\n.podf-wrap p{color:#cbd5e1 !important;margin:0 0 14px 0;}\n.podf-wrap ul{margin:0 0 16px 0;padding-left:20px;}\n.podf-wrap li{color:#cbd5e1 !important;margin-bottom:8px;}\n.podf-wrap strong{color:#67e8f9 !important;}\n.podf-wrap a{color:#22d3ee 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p{font-size:0.93em;color:#b6c4d6 !important;margin:0;line-height:1.65;}\n.podf-card p strong{color:#67e8f9 !important;}\n.podf-table{width:100% !important;border-collapse:collapse;margin:22px 0;font-size:0.94em;}\n.podf-table th{background:#0e7490 !important;color:#ffffff !important;text-align:left;padding:11px 14px;font-weight:700;font-size:0.9em;letter-spacing:0.04em;text-transform:uppercase;border-bottom:1px solid #22384f !important;}\n.podf-table td{padding:10px 14px;border-bottom:1px solid #22384f !important;color:#dbe4ef !important;background:#111c30 !important;}\n.podf-table tr:nth-child(even) td{background:#1a2740 !important;}\n.podf-table td:first-child{font-weight:600;color:#67e8f9 !important;width:45%;}\n.podf-chartbox{display:block !important;width:100% !important;max-width:100% !important;margin:22px 0 !important;}\n.podf-chart{display:block !important;width:100% !important;max-width:100% !important;height:auto !important;}\n.podf-cta{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:28px 26px;margin:32px 0 0 0;text-align:center;}\n.podf-cta h3{color:#ffffff !important;margin:0 0 10px 0;}\n.podf-cta p{color:#e2e8f0 !important;margin:0;font-size:0.97em;}\n.podf-cta a{color:#a5f3fc !important;}\n\u003c\/style\u003e\n\n\u003cdiv class=\"podf-hero\"\u003e\n\u003cspan class=\"podf-eyebrow\"\u003eProline X | Performance Optimized Down Fire\u003c\/span\u003e\n\u003ch2\u003eTwo Audiomobile GT2 2010s. Eight and a Half Inches Tall. Firing Into the Floor.\u003c\/h2\u003e\n\u003cp\u003eA sealed dual 10 enclosure cut to the Audiomobile GT2 2010 and nothing else. The drivers face down, the cargo floor stays flat and usable, and the cabinet clears rear deck lines that a conventional dual 10 box cannot get near.\u003c\/p\u003e\n\u003cdiv class=\"podf-badges\"\u003e\n\u003cspan class=\"podf-badge\"\u003e1.20 CU FT NET\u003c\/span\u003e\n\u003cspan class=\"podf-badge\"\u003e8.5 IN TALL CABINET\u003c\/span\u003e\n\u003cspan class=\"podf-badge\"\u003eDOWN FIRE OR FORWARD FIRE\u003c\/span\u003e\n\u003cspan class=\"podf-badge\"\u003eFEET INCLUDED\u003c\/span\u003e\n\u003cspan class=\"podf-badge\"\u003eBUILT IN TULLAHOMA, TN\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"podf-section\"\u003e\n\u003ch3\u003eBuilt for One Driver, Not for a Size Class\u003c\/h3\u003e\n\u003cp\u003ePerformance Optimized enclosures are engineered around a specific subwoofer. This one is cut to the \u003cstrong\u003eAudiomobile GT2 2010\u003c\/strong\u003e, a 10 inch driver with 400 watts RMS of power handling, 11.9mm of one way Xmax, and only 4.25 inches of mounting depth. Those numbers are unusual together, and they are what make a cabinet this shallow possible in the first place.\u003c\/p\u003e\n\u003cp\u003eThe GT2 2010 asks for a small chamber. Audiomobile's own minimum sealed figure is 0.50 cubic feet. This enclosure gives each driver \u003cstrong\u003e0.60 cubic feet of net airspace in a common chamber\u003c\/strong\u003e, which sits comfortably inside the driver's working range while keeping the cabinet down to 8.5 inches of external height. The cutouts are 9.2 inches, matched to the driver's gasket ID, and the mounting pattern comes from the actual driver rather than a spec sheet.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"podf-section-alt\"\u003e\n\u003ch3\u003eWhy Down Fire\u003c\/h3\u003e\n\u003cp\u003eTurning the drivers toward the floor is not a styling decision. It changes what the enclosure does to the space around it and what the space around it can do to the enclosure.\u003c\/p\u003e\n\u003cdiv class=\"podf-card-grid\"\u003e\n\u003cdiv class=\"podf-card\"\u003e\n\u003cspan class=\"podf-card-label\"\u003eBoundary\u003c\/span\u003e\u003cdiv class=\"podf-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eThe Floor Is Right There\u003c\/h4\u003e\n\u003cp\u003eThe drivers radiate into a hard surface 1.75 inches away. In a trunk or cargo area that reinforcement, combined with cabin gain, is what makes a compact sealed box feel bigger than its airspace.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"podf-card\"\u003e\n\u003cspan class=\"podf-card-label\"\u003eProtection\u003c\/span\u003e\u003cdiv class=\"podf-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eNothing Lands on the Cone\u003c\/h4\u003e\n\u003cp\u003eGroceries, tools, luggage, and dogs never touch a surround that is facing down. The most common cause of a damaged subwoofer in a daily driven vehicle is \u003cstrong\u003ecargo, not power\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"podf-card\"\u003e\n\u003cspan class=\"podf-card-label\"\u003ePackaging\u003c\/span\u003e\u003cdiv class=\"podf-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eA Flat Top You Can Use\u003c\/h4\u003e\n\u003cp\u003eNo baskets, no grilles, no protrusions. The top of the cabinet is a flat carpeted surface, which in most vehicles means you get the cargo floor back instead of building around a box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"podf-card\"\u003e\n\u003cspan class=\"podf-card-label\"\u003eFlexibility\u003c\/span\u003e\u003cdiv class=\"podf-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eNot Locked Into One Orientation\u003c\/h4\u003e\n\u003cp\u003eThe feet ship without predrilled holes on purpose. Mount them where your floor wants them, or leave them off entirely and run the cabinet \u003cstrong\u003eforward firing\u003c\/strong\u003e if your install calls for it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"podf-clearance\"\u003e\n\u003cspan class=\"podf-clearance-label\"\u003eFeet and Clearance\u003c\/span\u003e\n\u003ch3\u003eWhat Ships With the Enclosure\u003c\/h3\u003e\n\u003cp\u003eFour feet come standard with every Performance Optimized Down Fire enclosure. There is no upgrade tier and no separate accessory to buy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eABS and carbon fiber composite\u003c\/strong\u003e, machined in house on the same equipment as our terminal cups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.75 inches of lift\u003c\/strong\u003e, which sets the working air gap between the baffle and the floor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo predrilled mounting holes\u003c\/strong\u003e, so the enclosure is never locked into a single orientation. Set them where they suit your floor, or omit them and run forward firing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall height with feet installed: 10.25 inches.\u003c\/strong\u003e Cabinet alone is 8.5 inches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"podf-alert\"\u003e\u003cp\u003e\u003cstrong\u003eKeep the gap clear.\u003c\/strong\u003e The 1.75 inch space under the baffle is the air path, not empty room. A spare tire, a toolbox, or a folded moving blanket pressed against the opening will choke the output. Down fire systems that sound dead almost always have something jammed underneath them.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"podf-section\"\u003e\n\u003ch3\u003eBefore You Buy: Read the Impedance\u003c\/h3\u003e\n\u003cp\u003eThe GT2 2010 runs a \u003cstrong\u003esingle 3 ohm nominal voice coil at 2.8 ohms DCR\u003c\/strong\u003e. This is not a standard car audio impedance and there is no dual 2 ohm or dual 4 ohm version of the driver. Two of them in this enclosure give you exactly two options.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eParallel, 1.5 ohms nominal.\u003c\/strong\u003e Requires a 1 ohm stable monoblock. An amplifier in the 800 to 1000 watt RMS range is the clean match and the configuration we recommend.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries, 6 ohms nominal.\u003c\/strong\u003e Most amplifiers will drive 6 ohms, but output falls to roughly 40 to 50 percent of the 1 ohm rating. This is the path when your amplifier is not 1 ohm stable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSettle the amplifier question before the enclosure ships. It is the single decision that determines what this system is capable of.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"podf-section-alt\"\u003e\n\u003ch3\u003eHow It Is Built\u003c\/h3\u003e\n\u003cdiv class=\"podf-highlight\"\u003e\n\u003ch3\u003eCabinet\u003c\/h3\u003e\n\u003cp\u003eCut on our ShopSabre CNC from Langboard Elite MDF and assembled with V groove and dado joinery, with internal bracing and a \u003cstrong\u003edouble baffle\u003c\/strong\u003e at 1.5 inches. Every panel meets on a machined joint rather than a butt seam, so the cabinet stays rigid and puts its energy into the drivers instead of the panels. Internal height under the top panel is 6.25 inches against the driver's 4.25 inch mounting depth, so the motors clear with room to breathe.\u003c\/p\u003e\n\u003ch3\u003eMounting Pattern Drawn In House\u003c\/h3\u003e\n\u003cp\u003eWe have the GT2 2010 in the shop. We measured it, built the bolt circle in CAD, and the nutsert locations and the cutout are machined in the same operation from the same origin on the router. \u003cstrong\u003eThe holes cannot drift relative to each other, because the machine never re-references between them.\u003c\/strong\u003e Threaded inserts are installed and 8\/32 machine screws are supplied, so the drivers can come out and go back in as many times as the build requires.\u003c\/p\u003e\n\u003ch3\u003eWiring and Damping\u003c\/h3\u003e\n\u003cp\u003eThe Proline X ABS and carbon fiber composite terminal cup is \u003cstrong\u003eside mounted\u003c\/strong\u003e, which keeps the connection accessible with the enclosure sitting on its feet. Pre wired with 12 gauge OFC to both driver positions. Polyfill is installed before the enclosure leaves the shop.\u003c\/p\u003e\n\u003ch3\u003eFinish\u003c\/h3\u003e\n\u003cp\u003eCharcoal gray trunk liner standard, plush black available. The lasered acrylic badge mounts on the front face rather than the woofer face, so it stays visible in the down fire orientation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"podf-section\"\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eExternal dimensions are \u003cstrong\u003e29.5 inches wide by 8.5 inches tall by 16 inches deep\u003c\/strong\u003e, or 10.25 inches tall with the feet installed. The 8.5 inch cabinet height clears the rear deck line on most full size sedans and sits under most cargo covers.\u003c\/p\u003e\n\u003cdiv class=\"podf-alert\"\u003e\u003cp\u003e\u003cstrong\u003eMeasure the width first.\u003c\/strong\u003e At 29.5 inches this is a full width enclosure. Height is the spec that makes this design interesting, but width is the spec that decides whether it goes in your vehicle. There is no compact or behind seat version of this enclosure.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"podf-section\"\u003e\n\u003ch3\u003eEnclosure Performance\u003c\/h3\u003e\n\u003cp\u003eEvery Proline X enclosure is designed to a target alignment rather than a convenient box size. These are the sealed alignment figures for the Audiomobile GT2 2010 across the usable volume range, calculated from the published Thiele-Small parameters: Fs 27.5 Hz, Qts 0.61, Vas 1.17 cu ft.\u003c\/p\u003e\n\u003ctable class=\"podf-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eVolume Per Driver\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.50 cu ft (minimum)\u003c\/td\u003e\n\u003ctd\u003e1.115\u003c\/td\u003e\n\u003ctd\u003e50.3 Hz\u003c\/td\u003e\n\u003ctd\u003e37.9 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.60 cu ft (this enclosure)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e1.048\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e47.2 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e36.4 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.75 cu ft (maximum practical)\u003c\/td\u003e\n\u003ctd\u003e0.976\u003c\/td\u003e\n\u003ctd\u003e44.0 Hz\u003c\/td\u003e\n\u003ctd\u003e35.0 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"podf-chartbox\"\u003e\n\u003csvg class=\"podf-chart\" width=\"1260\" height=\"420\" viewbox=\"0 0 1260 420\" preserveaspectratio=\"xMidYMid meet\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display:block !important;width:100% !important;max-width:100% !important;height:auto !important;\"\u003e\n\u003crect x=\"0\" y=\"0\" width=\"1260\" height=\"420\" fill=\"#0b1424\"\u003e\u003c\/rect\u003e\n\u003crect x=\"90\" y=\"50\" width=\"1080\" height=\"300\" fill=\"#111c30\" stroke=\"#2c405c\" stroke-width=\"1\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"280\" y1=\"50\" x2=\"280\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"520\" y1=\"50\" x2=\"520\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"845\" y1=\"50\" x2=\"845\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"105\" x2=\"1170\" y2=\"105\" stroke=\"#334155\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"145\" x2=\"1170\" y2=\"145\" stroke=\"#64748b\" stroke-width=\"1\" stroke-dasharray=\"6,5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"1178\" y=\"150\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-3 dB\u003c\/text\u003e\n\u003ctext x=\"1178\" y=\"110\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0 dB\u003c\/text\u003e\n\u003cpolyline points=\"90,312 112,300 135,287 158,275 180,262 202,250 225,237 248,224 270,212 292,199 315,186 338,173 360,161 382,149 405,138 428,127 450,117 472,107 495,100 518,93 540,88 562,84 585,81 608,79 630,78 653,78 675,79 698,80 720,81 742,82 765,84 788,85 810,86 832,88 855,89 878,90 900,91 922,93 945,94 968,94 990,95 1012,96 1035,97 1058,98 1080,98 1102,99 1125,99 1148,100 1170,100\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,281 112,269 135,257 158,245 180,233 202,221 225,209 248,197 270,185 292,174 315,163 338,152 360,142 382,133 405,124 428,117 450,110 472,104 495,100 518,96 540,93 562,92 585,90 608,90 630,89 653,89 675,90 698,90 720,91 742,92 765,92 788,93 810,94 832,95 855,95 878,96 900,97 922,97 945,98 968,99 990,99 1012,100 1035,100 1058,100 1080,101 1102,101 1125,101 1148,102 1170,102\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,298 112,285 135,273 158,261 180,248 202,236 225,223 248,211 270,198 292,186 315,174 338,162 360,151 382,140 405,130 428,120 450,112 472,105 495,99 518,94 540,90 562,87 585,85 608,84 630,84 653,84 675,84 698,85 720,86 742,87 765,88 788,89 810,90 832,91 855,92 878,93 900,94 922,95 945,96 968,97 990,97 1012,98 1035,98 1058,99 1080,99 1102,100 1125,100 1148,101 1170,101\" fill=\"none\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/polyline\u003e\n\u003ctext x=\"82\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e20\u003c\/text\u003e\n\u003ctext x=\"272\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e30\u003c\/text\u003e\n\u003ctext x=\"512\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e50\u003c\/text\u003e\n\u003ctext x=\"833\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e100\u003c\/text\u003e\n\u003ctext x=\"1158\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e200\u003c\/text\u003e\n\u003ctext x=\"560\" y=\"404\" font-size=\"17\" fill=\"#22d3ee\" font-family=\"sans-serif\" font-weight=\"700\"\u003eFrequency (Hz)\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"56\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e+4\u003c\/text\u003e\n\u003ctext x=\"58\" y=\"178\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-5\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"246\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-10\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"314\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-15\u003c\/text\u003e\n\u003ctext x=\"102\" y=\"36\" font-size=\"16\" fill=\"#67e8f9\" font-family=\"sans-serif\" font-weight=\"700\"\u003eAnechoic half-space response, no cabin gain\u003c\/text\u003e\n\u003cline x1=\"880\" y1=\"270\" x2=\"930\" y2=\"270\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"942\" y=\"276\" font-size=\"16\" fill=\"#e2e8f0\" font-family=\"sans-serif\" font-weight=\"700\"\u003e0.60 cu ft, this enclosure\u003c\/text\u003e\n\u003cline x1=\"880\" y1=\"302\" x2=\"930\" y2=\"302\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"942\" y=\"308\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0.50 and 0.75 cu ft\u003c\/text\u003e\n\u003c\/svg\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"podf-alert\"\u003e\u003cp\u003e\u003cstrong\u003eRead the curve honestly.\u003c\/strong\u003e The GT2 2010 has a Qts of 0.61, which means it cannot reach a textbook 0.707 Qtc in any enclosure that fits in a vehicle. You would need 3.41 cu ft per driver. At 0.60 cu ft this alignment lands at Qtc 1.048, which puts a roughly 1.5 dB lift around 47 Hz and an anechoic F3 of 36.4 Hz. That is an impact alignment, not a flat one. Loaded into a trunk or cargo floor and firing down, cabin gain fills in below the knee and the result is a punchy, high output system. If you want a flat sealed alignment above all else, this is not the driver or the enclosure for it.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003eRun your own numbers with the \u003ca href=\"\/pages\/sealed-box-calculator\"\u003eSealed Box Calculator\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"podf-section\"\u003e\n\u003cp\u003eFull dimensions, cutout, mounting depth, and hardware details are listed under the \u003cstrong\u003eEnclosures\u003c\/strong\u003e tab.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"podf-cta\"\u003e\n\u003ch3\u003eCut for the GT2 2010. Built in Tennessee.\u003c\/h3\u003e\n\u003cp\u003eOrder it as a bare enclosure or loaded with a matched pair of Audiomobile GT2 2010 subwoofers, wired and ready to connect. Every Performance Optimized Down Fire enclosure is built to order in Tullahoma, Tennessee. Questions on fitment or amplifier matching, call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black \/ Box Only","offer_id":44389901303897,"sku":"PO10D-S DF AM BO B","price":279.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black \/ Loaded with two Audiomobile GT2 2010","offer_id":44389901336665,"sku":"PO10D-S DF AM LD B","price":579.99,"currency_code":"USD","in_stock":true},{"title":"Grey \/ Box Only","offer_id":44389901238361,"sku":"PO10D-S DF AM BO G","price":269.99,"currency_code":"USD","in_stock":true},{"title":"Grey \/ Loaded with two Audiomobile GT2 2010","offer_id":44389901271129,"sku":"PO10D-S DF AM LD G","price":569.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PDF10D-SAMFront.png?v=1785798600"},{"product_id":"proline-x-po-15d-s-w-dual-15-sealed-wedge-enclosure-built-for-resonix-gus-15","title":"Proline X PO15D-S W | Dual 15\" Sealed Wedge Subwoofer Enclosure | Built for ResoNix GUS-15","description":"\u003cdiv class=\"pow-wrap\"\u003e\n\u003cstyle\u003e\n.pow-wrap{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;line-height:1.7;color:#cbd5e1 !important;}\n.pow-wrap p{color:#cbd5e1 !important;margin:0 0 14px 0;}\n.pow-wrap ul{margin:0 0 16px 0;padding-left:20px;}\n.pow-wrap li{color:#cbd5e1 !important;margin-bottom:8px;}\n.pow-wrap strong{color:#67e8f9 !important;}\n.pow-wrap a{color:#22d3ee !important;font-weight:700;text-decoration:underline;}\n.pow-hero{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:32px 28px;margin-bottom:28px;}\n.pow-eyebrow{display:inline-block;color:#67e8f9 !important;font-size:0.72em;font-weight:700;letter-spacing:0.14em;text-transform:uppercase;margin-bottom:10px;}\n.pow-hero h2{color:#ffffff !important;font-size:1.55em;font-weight:700;margin:0 0 12px 0;line-height:1.3;}\n.pow-hero 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!important;}\n.pow-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:24px 0;}\n@media(max-width:600px){.pow-card-grid{grid-template-columns:1fr;}}\n.pow-card{background:#1a2740 !important;border:1px solid #2c405c !important;border-top:3px solid #06b6d4 !important;border-radius:6px;padding:22px;}\n.pow-card-label{display:inline-block;background:#06b6d4 !important;color:#04222b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:3px 10px;border-radius:3px;margin-bottom:10px;}\n.pow-card h4{margin:0 0 10px 0;}\n.pow-card-divider{height:2px;background:#06b6d4 !important;width:32px;margin-bottom:12px;border-radius:2px;}\n.pow-card p{font-size:0.93em;color:#b6c4d6 !important;margin:0;line-height:1.65;}\n.pow-card p strong{color:#67e8f9 !important;}\n.pow-table{width:100% !important;border-collapse:collapse;margin:22px 0;font-size:0.94em;}\n.pow-table th{background:#0e7490 !important;color:#ffffff !important;text-align:left;padding:11px 14px;font-weight:700;font-size:0.9em;letter-spacing:0.04em;text-transform:uppercase;border-bottom:1px solid #22384f !important;}\n.pow-table td{padding:10px 14px;border-bottom:1px solid #22384f !important;color:#dbe4ef !important;background:#111c30 !important;}\n.pow-table tr:nth-child(even) td{background:#1a2740 !important;}\n.pow-table td:first-child{font-weight:600;color:#67e8f9 !important;width:32%;}\n.pow-chartbox{display:block !important;width:100% !important;max-width:100% !important;margin:22px 0 !important;}\n.pow-chart{display:block !important;width:100% !important;max-width:100% !important;height:auto !important;}\n.pow-cta{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:28px 26px;margin:32px 0 0 0;text-align:center;}\n.pow-cta h3{color:#ffffff !important;margin:0 0 10px 0;}\n.pow-cta p{color:#e2e8f0 !important;margin:0;font-size:0.97em;}\n.pow-cta a{color:#a5f3fc !important;}\n\u003c\/style\u003e\n\n\u003cdiv class=\"pow-hero\"\u003e\n\u003cspan class=\"pow-eyebrow\"\u003eProline X | Performance Optimized Wedge\u003c\/span\u003e\n\u003ch2\u003eTwo GUS-15s. Trunk Mounted, the Way a Wedge Is Meant to Sit.\u003c\/h2\u003e\n\u003cp\u003eA dual chamber sealed wedge cut for the ResoNix GUS-15 and nothing else. It sits in the trunk or cargo area with the tall face against the back of the rear seat and the drivers firing rearward, so the box uses the length of the trunk instead of standing in the middle of it.\u003c\/p\u003e\n\u003cdiv class=\"pow-badges\"\u003e\n\u003cspan class=\"pow-badge\"\u003e1.35 CU FT NET PER DRIVER\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eDUAL CHAMBER\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eTRUNK MOUNT, REAR FIRING\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003e3000W RMS COMBINED\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eDUAL TERMINAL CUPS\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eBUILT IN TULLAHOMA, TN\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-warn\"\u003e\n\u003cspan class=\"pow-warn-label\"\u003eRead This First\u003c\/span\u003e\n\u003ch3\u003eThis Is Not a Down Fire Enclosure\u003c\/h3\u003e\n\u003cp\u003eThe wedge only works in one orientation: tall face flat against the rear seat back, taper running out toward the trunk lid, drivers firing rearward. There are no feet, no baffle clearance gap, and \u003cstrong\u003eno down fire option on this cabinet\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIf you need an enclosure that can run down fire, the \u003cstrong\u003eProline X Micro Series Dual 15 Sealed Enclosure Built for ResoNix GUS-15\u003c\/strong\u003e is the one for that. Square stack fab cabinet, feet included, runs either orientation. Same driver, same airspace target, different build and a different place in the vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eBuilt for One Driver, at One Volume\u003c\/h3\u003e\n\u003cp\u003ePerformance Optimized enclosures are cut for a specific subwoofer rather than a size class. This one is built around the \u003cstrong\u003eResoNix GUS-15\u003c\/strong\u003e, and Audio Intensity is the exclusive enclosure builder for the GUS platform.\u003c\/p\u003e\n\u003cp\u003eResoNix publishes \u003cstrong\u003e1.35 cubic feet\u003c\/strong\u003e as the volume that produces a maximally flat sealed alignment for the GUS-15. Each chamber here is built at \u003cstrong\u003e1.425 cubic feet gross\u003c\/strong\u003e. Subtract the driver's 0.072 cubic feet of displacement and each driver sees 1.353 cubic feet, which lands on the published target rather than near it. Total gross volume across both chambers is 2.85 cubic feet, 2.70 net acoustic.\u003c\/p\u003e\n\u003cp\u003eThe woofer opening is cut direct fit to the GUS-15 at 355mm. There is no universal 15 inch cutout here and no attempt at one, which is the entire point of the Optimized line. A standard 15 will not work in this cabinet, both because of the opening and because the depth is built around this driver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eWhy a Wedge\u003c\/h3\u003e\n\u003cp\u003eThe wedge is the oldest trunk enclosure shape in car audio for a reason. It is built around what a trunk actually is, rather than dropping a rectangle into one.\u003c\/p\u003e\n\u003cdiv class=\"pow-card-grid\"\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003ePackaging\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eIt Uses the Trunk Lengthwise\u003c\/h4\u003e\n\u003cp\u003eTall face against the rear seat, tapering down as it runs out toward the lid. The cabinet claims the deep space at the base of the trunk and gives the height back where the lid closes, so \u003cstrong\u003eyou keep usable trunk instead of losing the middle of it\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLoading\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eThe Trunk Is Part of the System\u003c\/h4\u003e\n\u003cp\u003eFiring rearward means the output loads into the trunk volume and reaches the cabin through the rear seat and deck. That path is what gives a trunk mounted subwoofer its weight, and it is why moving a box a few inches changes what you hear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLocalization\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eHarder to Point At\u003c\/h4\u003e\n\u003cp\u003eBecause the drivers do not radiate straight into the cabin, the low end arrives through the structure rather than as a beam from behind your head. On a well built system that makes \u003cstrong\u003ekeeping the stage forward\u003c\/strong\u003e considerably easier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eSeparation\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eTwo Chambers, Two Cups\u003c\/h4\u003e\n\u003cp\u003eEach driver gets its own sealed chamber and its own terminal cup. \u003cstrong\u003eNo internal cross chamber wiring\u003c\/strong\u003e, so you can run a monoblock per driver or bridge externally.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eDual Chamber, Not Common Chamber\u003c\/h3\u003e\n\u003cp\u003eEach GUS-15 loads into its own sealed 1.425 cubic foot chamber, isolated by a full divider. This matters at this power level. With separate chambers, one driver's cone motion does not modulate the air load the other driver sees, so the two stay acoustically independent under hard excursion.\u003c\/p\u003e\n\u003cp\u003eIt also means the two chambers can be driven separately. Each Proline X terminal cup is pre wired with 12 gauge OFC to its own driver, so the common configurations are a dedicated monoblock per driver, or a single high output amplifier bridged externally across the two terminals. The GUS-15 is rated at \u003cstrong\u003e1500 watts RMS each in its suggested enclosure\u003c\/strong\u003e, so this cabinet is a 3000 watt system when both chambers are driven properly. The dual amplifier path gives the cleanest channel separation and the most consistent damping at that power level.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eHow It Is Built\u003c\/h3\u003e\n\u003cdiv class=\"pow-highlight\"\u003e\n\u003ch3\u003eCabinet\u003c\/h3\u003e\n\u003cp\u003eCut on our ShopSabre CNC from Langboard Elite MDF and assembled with \u003cstrong\u003edado and V groove joinery\u003c\/strong\u003e over 0.75 inch panels, with a \u003cstrong\u003edouble baffle at 1.5 inches\u003c\/strong\u003e and a full chamber divider. This is a different construction method from the stack fab Micro Series, and the wedge geometry is the reason. The angled panel meets are cut as V joints so the faces close on a machined bevel rather than a filled seam.\u003c\/p\u003e\n\u003ch3\u003eMounting Pattern\u003c\/h3\u003e\n\u003cp\u003eThe GUS-15 is in the Proline X CAD library, drawn from the manufacturer's own CAD file. The cutout and the nutsert locations are machined in the same operation from the same origin on the router, so the holes cannot drift relative to each other. \u003cstrong\u003e8\/32 threaded inserts are installed at both driver positions\u003c\/strong\u003e with stainless machine screws supplied, matched to the driver's 375mm bolt circle.\u003c\/p\u003e\n\u003ch3\u003eWiring and Damping\u003c\/h3\u003e\n\u003cp\u003eTwo Proline X ABS and carbon fiber composite terminal cups, side mounted, one per chamber, each pre wired with 12 gauge OFC. Polyfill is installed as a light wall lining to control internal reflections without altering the acoustic volume, because ResoNix calculated the target at 1.35 cubic feet and adding fill density would shift the alignment off it.\u003c\/p\u003e\n\u003ch3\u003eFinish\u003c\/h3\u003e\n\u003cp\u003eDark gray trunk liner standard, plush black available. The lasered acrylic badge mounts on the woofer face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eExternal dimensions are \u003cstrong\u003e36 inches wide by 17.5 inches tall\u003c\/strong\u003e, with the depth running \u003cstrong\u003e16.5 inches at the base and tapering to 10 inches at the top\u003c\/strong\u003e. Installed, the 17.5 inch face stands against the rear seat back and the cabinet slopes away toward the trunk lid.\u003c\/p\u003e\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eMeasure the floor, then the lid.\u003c\/strong\u003e The 16.5 inch base depth and the 36 inch width are what has to clear on the trunk floor. The taper is there so the lid closes over the shallow end, but check your own lid line, since trunk openings vary far more than trunk floors do.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eFront clearance.\u003c\/strong\u003e ResoNix specifies a 33mm minimum clearance in front of each GUS-15. At 25.89mm of Klippel verified one way excursion that figure is the operational envelope of the suspension, not optional headroom. Nothing should sit inside it, including cargo you expect to load behind the box. Verify both driver positions independently.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eEnclosure Performance\u003c\/h3\u003e\n\u003cp\u003eThese figures are calculated from ResoNix's own published Klippel measured parameters for the GUS-15 D4 coil: \u003cstrong\u003eFs 17.11 Hz, Qts 0.34, Vas 117.47 litres\u003c\/strong\u003e. Nothing here is estimated.\u003c\/p\u003e\n\u003ctable class=\"pow-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eVolume Per Driver\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003cth\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.80 cu ft, ResoNix minimum\u003c\/td\u003e\n\u003ctd\u003e0.846\u003c\/td\u003e\n\u003ctd\u003e42.6 Hz\u003c\/td\u003e\n\u003ctd\u003e36.7 Hz\u003c\/td\u003e\n\u003ctd\u003eTighter, more upper bass emphasis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e1.35 cu ft, this enclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.686\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e34.5 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e35.6 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003eMaximally flat. The target.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.00 cu ft, ResoNix maximum\u003c\/td\u003e\n\u003ctd\u003e0.596\u003c\/td\u003e\n\u003ctd\u003e30.0 Hz\u003c\/td\u003e\n\u003ctd\u003e36.6 Hz\u003c\/td\u003e\n\u003ctd\u003eOverdamped, softer, more headroom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"pow-chartbox\"\u003e\n\u003csvg class=\"pow-chart\" width=\"1260\" height=\"420\" viewbox=\"0 0 1260 420\" preserveaspectratio=\"xMidYMid meet\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display:block !important;width:100% !important;max-width:100% !important;height:auto !important;\"\u003e\n\u003crect x=\"0\" y=\"0\" width=\"1260\" height=\"420\" fill=\"#0b1424\"\u003e\u003c\/rect\u003e\n\u003crect x=\"90\" y=\"50\" width=\"1080\" height=\"300\" fill=\"#111c30\" stroke=\"#2c405c\" stroke-width=\"1\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"210\" y1=\"50\" x2=\"210\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"379\" y1=\"50\" x2=\"379\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"592\" y1=\"50\" x2=\"592\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"881\" y1=\"50\" x2=\"881\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"110\" x2=\"1170\" y2=\"110\" stroke=\"#334155\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"155\" x2=\"1170\" y2=\"155\" stroke=\"#64748b\" stroke-width=\"1\" stroke-dasharray=\"6,5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"1178\" y=\"160\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-3 dB\u003c\/text\u003e\n\u003ctext x=\"1178\" y=\"115\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0 dB\u003c\/text\u003e\n\u003cpolyline points=\"90,350 112,350 135,349 157,335 180,320 202,306 225,292 247,277 270,263 292,249 315,235 337,222 360,209 382,196 405,184 428,172 450,161 472,151 495,142 518,134 540,127 562,122 585,117 607,113 630,110 652,108 675,106 698,105 720,104 742,104 765,104 787,104 810,104 832,104 855,104 877,105 900,105 923,105 945,106 968,106 990,106 1012,107 1035,107 1058,107 1080,108 1102,108 1125,108 1147,108 1170,108\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,306 112,294 135,282 157,270 180,259 202,248 225,238 247,227 270,218 292,208 315,200 337,191 360,184 382,176 405,170 428,164 450,158 472,153 495,148 518,144 540,140 562,137 585,134 607,131 630,129 652,127 675,125 698,123 720,122 742,120 765,119 787,118 810,117 832,117 855,116 877,115 900,115 923,114 945,114 968,113 990,113 1012,113 1035,112 1058,112 1080,112 1102,112 1125,112 1147,111 1170,111\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,331 112,317 135,304 157,291 180,278 202,266 225,253 247,241 270,229 292,218 315,207 337,197 360,187 382,178 405,170 428,162 450,155 472,149 495,143 518,138 540,134 562,130 585,127 607,125 630,122 652,120 675,119 698,117 720,116 742,115 765,114 787,114 810,113 832,113 855,112 877,112 900,112 923,111 945,111 968,111 990,111 1012,111 1035,111 1058,111 1080,111 1102,110 1125,110 1147,110 1170,110\" fill=\"none\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/polyline\u003e\n\u003ctext x=\"202\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e20\u003c\/text\u003e\n\u003ctext x=\"371\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e30\u003c\/text\u003e\n\u003ctext x=\"584\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e50\u003c\/text\u003e\n\u003ctext x=\"869\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e100\u003c\/text\u003e\n\u003ctext x=\"1158\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e200\u003c\/text\u003e\n\u003ctext x=\"560\" y=\"404\" font-size=\"17\" fill=\"#22d3ee\" font-family=\"sans-serif\" font-weight=\"700\"\u003eFrequency (Hz)\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"56\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e+4\u003c\/text\u003e\n\u003ctext x=\"58\" y=\"190\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-5\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"265\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-10\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"340\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-15\u003c\/text\u003e\n\u003ctext x=\"102\" y=\"36\" font-size=\"16\" fill=\"#67e8f9\" font-family=\"sans-serif\" font-weight=\"700\"\u003eResoNix GUS-15, per driver. Anechoic half-space, no cabin gain.\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"255\" x2=\"850\" y2=\"255\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"261\" font-size=\"16\" fill=\"#e2e8f0\" font-family=\"sans-serif\" font-weight=\"700\"\u003e1.35 cu ft, this enclosure\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"287\" x2=\"850\" y2=\"287\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"293\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0.80 cu ft and 2.00 cu ft\u003c\/text\u003e\n\u003c\/svg\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eThe thing the curves actually show.\u003c\/strong\u003e Look at the F3 column, not the Qtc column. Across the entire usable range, from ResoNix's minimum 0.8 up to their maximum 2.0 cubic feet, \u003cstrong\u003eF3 moves less than two hertz\u003c\/strong\u003e. Enclosure volume on this driver changes the shape of the response, not how deep it plays. Going bigger does not buy extension. It buys damping and headroom, and it costs you upper bass. That is unusual, and it is a direct result of an Fs of 17 Hz paired with a Qts of 0.34.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWhy we built at 1.35.\u003c\/strong\u003e The small box gains upper bass emphasis and the large box gains control, and neither gains bottom end. 1.35 cubic feet sits at the maximally flat point between them, which is why it is ResoNix's own published recommendation. They designed the driver, and this is the alignment they built it around.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWhat flat means in a trunk.\u003c\/strong\u003e These figures are anechoic. Installed in a vehicle, cabin transfer function lifts the bottom octave regardless of alignment, and a rear firing trunk mount adds the loading of the trunk itself on top of that. In practice the in-car response will be considerably warmer than the curve above.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cp\u003eRun your own numbers with the \u003ca href=\"\/pages\/sealed-box-calculator\"\u003eSealed Box Calculator\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003cp\u003eFull dimensions, cutout, mounting depth, and hardware details are listed under the \u003cstrong\u003eEnclosures\u003c\/strong\u003e tab.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-cta\"\u003e\n\u003ch3\u003eCut for the GUS-15. Built in Tennessee.\u003c\/h3\u003e\n\u003cp\u003eEnclosure only. The ResoNix GUS-15 drivers are purchased separately from ResoNix Sound Solutions. Every Performance Optimized Wedge is built to order in Tullahoma, Tennessee on our own CNC equipment. Questions on fitment or amplifier matching, call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Dark Gray Trunkliner","offer_id":44465625104473,"sku":"PO15D-S W GUS G","price":489.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black","offer_id":44465625137241,"sku":"PO15D-S W GUS B","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Untitleddesign_25.png?v=1785897444"},{"product_id":"proline-x-po-15-s-w-gus-single-15-sealed-wedge-subwoofer-enclosure-built-for-resonix-gus-15","title":"Proline X PO 15-S W GUS | Single 15\" Sealed Wedge Subwoofer Enclosure | Built for ResoNix GUS-15","description":"\u003cdiv class=\"pow-wrap\"\u003e\n\u003cstyle\u003e\n.pow-wrap{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;line-height:1.7;color:#cbd5e1 !important;}\n.pow-wrap p{color:#cbd5e1 !important;margin:0 0 14px 0;}\n.pow-wrap ul{margin:0 0 16px 0;padding-left:20px;}\n.pow-wrap li{color:#cbd5e1 !important;margin-bottom:8px;}\n.pow-wrap strong{color:#67e8f9 !important;}\n.pow-wrap a{color:#22d3ee !important;font-weight:700;text-decoration:underline;}\n.pow-hero{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:32px 28px;margin-bottom:28px;}\n.pow-eyebrow{display:inline-block;color:#67e8f9 !important;font-size:0.72em;font-weight:700;letter-spacing:0.14em;text-transform:uppercase;margin-bottom:10px;}\n.pow-hero h2{color:#ffffff !important;font-size:1.55em;font-weight:700;margin:0 0 12px 0;line-height:1.3;}\n.pow-hero p{color:#e2e8f0 !important;font-size:1.02em;margin:0;}\n.pow-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}\n.pow-badge{display:inline-block;background:rgba(6,182,212,0.18) !important;border:1px solid #06b6d4 !important;color:#a5f3fc !important;font-size:0.75em;font-weight:600;letter-spacing:0.04em;padding:5px 12px;border-radius:4px;}\n.pow-section{margin:30px 0;}\n.pow-section-alt{background:#111c30 !important;border:1px solid #22384f !important;border-radius:8px;padding:26px 24px;margin:30px 0;}\n.pow-wrap h3{color:#22d3ee !important;font-size:1.22em;font-weight:700;margin:0 0 14px 0;line-height:1.35;}\n.pow-wrap h4{color:#22d3ee !important;font-size:1.02em;font-weight:700;margin:0 0 10px 0;}\n.pow-highlight{background:#0f172a !important;border-left:4px solid #06b6d4 !important;padding:20px 22px;margin:28px 0;border-radius:0 6px 6px 0;}\n.pow-highlight h3{color:#22d3ee !important;margin:0 0 10px 0;font-size:1.1em;}\n.pow-highlight h3+h3{margin-top:18px;}\n.pow-highlight p{margin-bottom:10px;font-size:0.97em;color:#cbd5e1 !important;}\n.pow-highlight p:last-child{margin-bottom:0;}\n.pow-alert{background:#0b2b34 !important;border:1px solid #06b6d4 !important;border-radius:6px;padding:14px 18px;margin:22px 0;font-size:0.93em;}\n.pow-alert p{color:#a5f3fc !important;margin:0;}\n.pow-alert strong{color:#67e8f9 !important;}\n.pow-warn{background:#2b1a0b !important;border:2px solid #f59e0b !important;border-radius:8px;padding:20px 22px;margin:26px 0;}\n.pow-warn-label{display:inline-block;background:#f59e0b !important;color:#2b1a0b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:4px 11px;border-radius:3px;margin-bottom:12px;}\n.pow-warn h3{color:#fbbf24 !important;margin:0 0 10px 0;}\n.pow-warn p{color:#fde68a !important;margin:0 0 10px 0;}\n.pow-warn p:last-child{margin-bottom:0;}\n.pow-warn strong{color:#fbbf24 !important;}\n.pow-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:24px 0;}\n@media(max-width:600px){.pow-card-grid{grid-template-columns:1fr;}}\n.pow-card{background:#1a2740 !important;border:1px solid #2c405c !important;border-top:3px solid #06b6d4 !important;border-radius:6px;padding:22px;}\n.pow-card-label{display:inline-block;background:#06b6d4 !important;color:#04222b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:3px 10px;border-radius:3px;margin-bottom:10px;}\n.pow-card h4{margin:0 0 10px 0;}\n.pow-card-divider{height:2px;background:#06b6d4 !important;width:32px;margin-bottom:12px;border-radius:2px;}\n.pow-card p{font-size:0.93em;color:#b6c4d6 !important;margin:0;line-height:1.65;}\n.pow-card p strong{color:#67e8f9 !important;}\n.pow-table{width:100% !important;border-collapse:collapse;margin:22px 0;font-size:0.94em;}\n.pow-table th{background:#0e7490 !important;color:#ffffff !important;text-align:left;padding:11px 14px;font-weight:700;font-size:0.9em;letter-spacing:0.04em;text-transform:uppercase;border-bottom:1px solid #22384f !important;}\n.pow-table td{padding:10px 14px;border-bottom:1px solid #22384f !important;color:#dbe4ef !important;background:#111c30 !important;}\n.pow-table tr:nth-child(even) td{background:#1a2740 !important;}\n.pow-table td:first-child{font-weight:600;color:#67e8f9 !important;width:30%;}\n.pow-chartbox{display:block !important;width:100% !important;max-width:100% !important;margin:22px 0 !important;}\n.pow-chart{display:block !important;width:100% !important;max-width:100% !important;height:auto !important;}\n.pow-cta{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:28px 26px;margin:32px 0 0 0;text-align:center;}\n.pow-cta h3{color:#ffffff !important;margin:0 0 10px 0;}\n.pow-cta p{color:#e2e8f0 !important;margin:0;font-size:0.97em;}\n\u003c\/style\u003e\n\n\u003cdiv class=\"pow-hero\"\u003e\n\u003cspan class=\"pow-eyebrow\"\u003eProline X | Performance Optimized Wedge\u003c\/span\u003e\n\u003ch2\u003eOne GUS-15, Sized to the Number ResoNix Published.\u003c\/h2\u003e\n\u003cp\u003eA sealed wedge cut for a single ResoNix GUS-15 and nothing else. It sits in the trunk with the tall face against the back of the rear seat and the driver firing rearward, using the length of the trunk instead of standing in the middle of it.\u003c\/p\u003e\n\u003cdiv class=\"pow-badges\"\u003e\n\u003cspan class=\"pow-badge\"\u003e1.35 CU FT NET ACOUSTIC\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eQTC 0.687\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eTRUNK MOUNT, REAR FIRING\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003e1500W RMS\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eDIRECT FIT GUS-15\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eBUILT IN TULLAHOMA, TN\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-warn\"\u003e\n\u003cspan class=\"pow-warn-label\"\u003eRead This First\u003c\/span\u003e\n\u003ch3\u003eThis Is Not a Down Fire Enclosure\u003c\/h3\u003e\n\u003cp\u003eThe wedge works in one orientation: tall face flat against the rear seat back, taper running out toward the trunk lid, driver firing rearward. There are no feet, no baffle clearance gap, and \u003cstrong\u003eno down fire option on this cabinet\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt is also cut direct fit to the GUS-15 at a 355mm opening. \u003cstrong\u003eA standard 15 will not fit\u003c\/strong\u003e, and would not see the correct airspace if it did.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eBuilt Backward From One Published Number\u003c\/h3\u003e\n\u003cp\u003eResoNix specifies \u003cstrong\u003e1.35 cubic feet of net acoustic airspace\u003c\/strong\u003e for the GUS-15, the volume that produces a maximally flat sealed alignment. This cabinet is built at \u003cstrong\u003e1.42 cubic feet gross\u003c\/strong\u003e. Subtract the driver's 0.072 cubic feet of displacement and the GUS-15 sees 1.348 cubic feet.\u003c\/p\u003e\n\u003cp\u003eThat is not close to the target. That is the target. The cabinet was sized from the number rather than the number being quoted after the fact, which is the whole idea behind the Optimized line.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eWhy a Wedge\u003c\/h3\u003e\n\u003cdiv class=\"pow-card-grid\"\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003ePackaging\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eIt Uses the Trunk Lengthwise\u003c\/h4\u003e\n\u003cp\u003eTall face against the rear seat, tapering down as it runs out toward the lid. The cabinet claims the deep space at the base of the trunk and gives height back where the lid closes, so \u003cstrong\u003eyou keep usable trunk\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLoading\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eThe Trunk Is Part of the System\u003c\/h4\u003e\n\u003cp\u003eFiring rearward means output loads into the trunk volume and reaches the cabin through the rear seat and deck. That path is what gives a trunk mounted subwoofer its weight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLocalization\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eHarder to Point At\u003c\/h4\u003e\n\u003cp\u003eBecause the driver does not radiate straight into the cabin, the low end arrives through the structure rather than as a beam from behind your head, which makes \u003cstrong\u003ekeeping the stage forward\u003c\/strong\u003e easier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eFootprint\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eHalf the Width of the Dual\u003c\/h4\u003e\n\u003cp\u003eAt 23.5 inches wide this fits vehicles the 36 inch dual 15 cannot. One GUS-15 in the right airspace beats two in the wrong one.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eHow It Is Built\u003c\/h3\u003e\n\u003cdiv class=\"pow-highlight\"\u003e\n\u003ch3\u003eCabinet\u003c\/h3\u003e\n\u003cp\u003eCut on our ShopSabre CNC from Langboard Elite MDF and assembled with \u003cstrong\u003edado and V groove joinery\u003c\/strong\u003e over 0.75 inch panels, with a \u003cstrong\u003edouble baffle at 1.5 inches\u003c\/strong\u003e. Angled panel meets are cut as V joints so the faces close on a machined bevel rather than a filled seam.\u003c\/p\u003e\n\u003ch3\u003eMounting Pattern\u003c\/h3\u003e\n\u003cp\u003eThe GUS-15 is in the Proline X CAD library, drawn from the manufacturer's own STEP file. The 355mm cutout and the nutsert locations are machined in the same operation from the same origin, so the holes cannot drift relative to each other. \u003cstrong\u003e8\/32 threaded inserts installed\u003c\/strong\u003e with stainless machine screws supplied, matched to the driver's 375mm bolt circle and its eight 6.5mm holes.\u003c\/p\u003e\n\u003ch3\u003eWiring and Damping\u003c\/h3\u003e\n\u003cp\u003eProline X ABS and carbon fiber composite terminal cup, side mounted, pre wired with 12 gauge OFC. Polyfill is installed as a light wall lining to control internal reflections without altering the acoustic volume, because adding fill density would shift the alignment off the 1.35 target.\u003c\/p\u003e\n\u003ch3\u003eFinish\u003c\/h3\u003e\n\u003cp\u003ePlush black carpet with a black acrylic badge on the woofer face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eExternal dimensions are \u003cstrong\u003e23.5 inches wide by 17.5 inches tall\u003c\/strong\u003e, with depth running \u003cstrong\u003e12.625 inches at the base tapering to 7.25 inches at the top\u003c\/strong\u003e. Maximum driver mounting depth is 7 inches, comfortable for the GUS-15.\u003c\/p\u003e\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eFront clearance.\u003c\/strong\u003e ResoNix specifies 33mm minimum clearance in front of the GUS-15. At more than 25mm of Klippel verified one way excursion that is the operational envelope of the suspension, not optional headroom. Since the driver fires rearward into the trunk, anything you load behind the box has to stay outside that envelope.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eEnclosure Performance\u003c\/h3\u003e\n\u003cp\u003eCalculated from ResoNix's published Klippel measured parameters for the GUS-15 D4 coil: \u003cstrong\u003eFs 17.11 Hz, Qts 0.34, Vas 117.47 litres\u003c\/strong\u003e. Nothing here is estimated.\u003c\/p\u003e\n\u003ctable class=\"pow-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003cth\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.80 cu ft, ResoNix minimum\u003c\/td\u003e\n\u003ctd\u003e0.846\u003c\/td\u003e\n\u003ctd\u003e42.6 Hz\u003c\/td\u003e\n\u003ctd\u003e36.7 Hz\u003c\/td\u003e\n\u003ctd\u003eTighter, more upper bass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e1.35 cu ft, this enclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.687\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e34.5 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e35.6 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003eMaximally flat. The target.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.00 cu ft, ResoNix maximum\u003c\/td\u003e\n\u003ctd\u003e0.596\u003c\/td\u003e\n\u003ctd\u003e30.0 Hz\u003c\/td\u003e\n\u003ctd\u003e36.6 Hz\u003c\/td\u003e\n\u003ctd\u003eOverdamped, more headroom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"pow-chartbox\"\u003e\n\u003csvg class=\"pow-chart\" width=\"1260\" height=\"420\" viewbox=\"0 0 1260 420\" preserveaspectratio=\"xMidYMid meet\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display:block !important;width:100% !important;max-width:100% !important;height:auto !important;\"\u003e\n\u003crect x=\"0\" y=\"0\" width=\"1260\" height=\"420\" fill=\"#0b1424\"\u003e\u003c\/rect\u003e\n\u003crect x=\"90\" y=\"50\" width=\"1080\" height=\"300\" fill=\"#111c30\" stroke=\"#2c405c\" stroke-width=\"1\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"210\" y1=\"50\" x2=\"210\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"379\" y1=\"50\" x2=\"379\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"592\" y1=\"50\" x2=\"592\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"881\" y1=\"50\" x2=\"881\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"110\" x2=\"1170\" y2=\"110\" stroke=\"#334155\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"155\" x2=\"1170\" y2=\"155\" stroke=\"#64748b\" stroke-width=\"1\" stroke-dasharray=\"6,5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"1178\" y=\"160\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-3 dB\u003c\/text\u003e\n\u003ctext x=\"1178\" y=\"115\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0 dB\u003c\/text\u003e\n\u003cpolyline points=\"90,350 112,350 135,349 157,335 180,320 202,306 225,292 247,277 270,263 292,249 315,235 337,222 360,209 382,196 405,184 428,172 450,161 472,151 495,142 518,134 540,127 562,122 585,117 607,113 630,110 652,108 675,106 698,105 720,104 742,104 765,104 787,104 810,104 832,104 855,104 877,105 900,105 923,105 945,106 968,106 990,106 1012,107 1035,107 1058,107 1080,108 1102,108 1125,108 1147,108 1170,108\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,306 112,294 135,282 157,270 180,259 202,248 225,238 247,227 270,218 292,208 315,200 337,191 360,184 382,176 405,170 428,164 450,158 472,153 495,148 518,144 540,140 562,137 585,134 607,131 630,129 652,127 675,125 698,123 720,122 742,120 765,119 787,118 810,117 832,117 855,116 877,115 900,115 923,114 945,114 968,113 990,113 1012,113 1035,112 1058,112 1080,112 1102,112 1125,112 1147,111 1170,111\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,331 112,317 135,304 157,291 180,278 202,266 225,253 247,241 270,229 292,218 315,207 337,197 360,187 382,178 405,170 428,162 450,155 472,149 495,143 518,138 540,134 562,130 585,127 607,125 630,122 652,120 675,119 698,117 720,116 742,115 765,114 787,114 810,113 832,113 855,112 877,112 900,112 923,111 945,111 968,111 990,111 1012,111 1035,111 1058,111 1080,111 1102,110 1125,110 1147,110 1170,110\" fill=\"none\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/polyline\u003e\n\u003ctext x=\"202\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e20\u003c\/text\u003e\n\u003ctext x=\"371\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e30\u003c\/text\u003e\n\u003ctext x=\"584\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e50\u003c\/text\u003e\n\u003ctext x=\"869\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e100\u003c\/text\u003e\n\u003ctext x=\"1158\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e200\u003c\/text\u003e\n\u003ctext x=\"560\" y=\"404\" font-size=\"17\" fill=\"#22d3ee\" font-family=\"sans-serif\" font-weight=\"700\"\u003eFrequency (Hz)\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"56\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e+4\u003c\/text\u003e\n\u003ctext x=\"58\" y=\"190\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-5\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"265\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-10\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"340\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-15\u003c\/text\u003e\n\u003ctext x=\"102\" y=\"36\" font-size=\"16\" fill=\"#67e8f9\" font-family=\"sans-serif\" font-weight=\"700\"\u003eResoNix GUS-15. Anechoic half-space, no cabin gain.\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"255\" x2=\"850\" y2=\"255\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"261\" font-size=\"16\" fill=\"#e2e8f0\" font-family=\"sans-serif\" font-weight=\"700\"\u003e1.35 cu ft, this enclosure\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"287\" x2=\"850\" y2=\"287\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"293\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0.80 cu ft and 2.00 cu ft\u003c\/text\u003e\n\u003c\/svg\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eLook at the F3 column, not the Qtc column.\u003c\/strong\u003e Across the entire usable range, from ResoNix's minimum 0.8 up to their maximum 2.0 cubic feet, \u003cstrong\u003eF3 moves about one hertz\u003c\/strong\u003e. Enclosure volume on this driver changes the shape of the response, not how deep it plays. Going bigger buys damping and headroom and costs upper bass, but buys no extension. That falls straight out of a 17 Hz Fs paired with a 0.34 Qts.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWhat flat means in a trunk.\u003c\/strong\u003e These figures are anechoic. Installed in a vehicle, cabin transfer function lifts the bottom octave regardless of alignment, and a rear firing trunk mount adds the loading of the trunk on top of that. In practice the in-car response will be considerably warmer than the curve above.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cp\u003eRun your own numbers with the \u003ca href=\"\/pages\/sealed-box-calculator\"\u003eSealed Box Calculator\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003cp\u003eFull dimensions, cutout, mounting depth, and hardware details are listed under the \u003cstrong\u003eEnclosures\u003c\/strong\u003e tab.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-cta\"\u003e\n\u003ch3\u003eCut for the GUS-15. Built in Tennessee.\u003c\/h3\u003e\n\u003cp\u003eEnclosure only. The ResoNix GUS-15 driver is purchased separately from ResoNix Sound Solutions. Built to order in Tullahoma, Tennessee on our own CNC equipment. Questions on fitment or amplifier matching, call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black","offer_id":44493043531865,"sku":"PO 15-S W GUS","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO15-SWGUSFront.png?v=1786656707"},{"product_id":"proline-x-po-12d-s-w-gus-dual-12-sealed-wedge-subwoofer-enclosure-built-for-resonix-gus-12","title":"Proline X PO 12D-S W GUS | Dual 12\" Sealed Wedge Subwoofer Enclosure | Built for ResoNix GUS-12","description":"\u003cdiv class=\"pow-wrap\"\u003e\n\u003cstyle\u003e\n.pow-wrap{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;line-height:1.7;color:#cbd5e1 !important;}\n.pow-wrap p{color:#cbd5e1 !important;margin:0 0 14px 0;}\n.pow-wrap strong{color:#67e8f9 !important;}\n.pow-wrap a{color:#22d3ee !important;font-weight:700;text-decoration:underline;}\n.pow-hero{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:32px 28px;margin-bottom:28px;}\n.pow-eyebrow{display:inline-block;color:#67e8f9 !important;font-size:0.72em;font-weight:700;letter-spacing:0.14em;text-transform:uppercase;margin-bottom:10px;}\n.pow-hero h2{color:#ffffff !important;font-size:1.55em;font-weight:700;margin:0 0 12px 0;line-height:1.3;}\n.pow-hero p{color:#e2e8f0 !important;font-size:1.02em;margin:0;}\n.pow-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}\n.pow-badge{display:inline-block;background:rgba(6,182,212,0.18) !important;border:1px solid #06b6d4 !important;color:#a5f3fc !important;font-size:0.75em;font-weight:600;letter-spacing:0.04em;padding:5px 12px;border-radius:4px;}\n.pow-section{margin:30px 0;}\n.pow-section-alt{background:#111c30 !important;border:1px solid #22384f !important;border-radius:8px;padding:26px 24px;margin:30px 0;}\n.pow-wrap h3{color:#22d3ee !important;font-size:1.22em;font-weight:700;margin:0 0 14px 0;line-height:1.35;}\n.pow-wrap h4{color:#22d3ee !important;font-size:1.02em;font-weight:700;margin:0 0 10px 0;}\n.pow-highlight{background:#0f172a !important;border-left:4px solid #06b6d4 !important;padding:20px 22px;margin:28px 0;border-radius:0 6px 6px 0;}\n.pow-highlight h3{color:#22d3ee !important;margin:0 0 10px 0;font-size:1.1em;}\n.pow-highlight h3+h3{margin-top:18px;}\n.pow-highlight p{margin-bottom:10px;font-size:0.97em;color:#cbd5e1 !important;}\n.pow-highlight p:last-child{margin-bottom:0;}\n.pow-alert{background:#0b2b34 !important;border:1px solid #06b6d4 !important;border-radius:6px;padding:14px 18px;margin:22px 0;font-size:0.93em;}\n.pow-alert p{color:#a5f3fc !important;margin:0;}\n.pow-alert strong{color:#67e8f9 !important;}\n.pow-warn{background:#2b1a0b !important;border:2px solid #f59e0b !important;border-radius:8px;padding:20px 22px;margin:26px 0;}\n.pow-warn-label{display:inline-block;background:#f59e0b !important;color:#2b1a0b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:4px 11px;border-radius:3px;margin-bottom:12px;}\n.pow-warn h3{color:#fbbf24 !important;margin:0 0 10px 0;}\n.pow-warn p{color:#fde68a !important;margin:0 0 10px 0;}\n.pow-warn p:last-child{margin-bottom:0;}\n.pow-warn strong{color:#fbbf24 !important;}\n.pow-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:24px 0;}\n@media(max-width:600px){.pow-card-grid{grid-template-columns:1fr;}}\n.pow-card{background:#1a2740 !important;border:1px solid #2c405c !important;border-top:3px solid #06b6d4 !important;border-radius:6px;padding:22px;}\n.pow-card-label{display:inline-block;background:#06b6d4 !important;color:#04222b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:3px 10px;border-radius:3px;margin-bottom:10px;}\n.pow-card h4{margin:0 0 10px 0;}\n.pow-card-divider{height:2px;background:#06b6d4 !important;width:32px;margin-bottom:12px;border-radius:2px;}\n.pow-card p{font-size:0.93em;color:#b6c4d6 !important;margin:0;line-height:1.65;}\n.pow-card p strong{color:#67e8f9 !important;}\n.pow-table{width:100% !important;border-collapse:collapse;margin:22px 0;font-size:0.94em;}\n.pow-table th{background:#0e7490 !important;color:#ffffff !important;text-align:left;padding:11px 14px;font-weight:700;font-size:0.9em;letter-spacing:0.04em;text-transform:uppercase;border-bottom:1px solid #22384f !important;}\n.pow-table td{padding:10px 14px;border-bottom:1px solid #22384f !important;color:#dbe4ef !important;background:#111c30 !important;}\n.pow-table tr:nth-child(even) td{background:#1a2740 !important;}\n.pow-table td:first-child{font-weight:600;color:#67e8f9 !important;width:30%;}\n.pow-chartbox{display:block !important;width:100% !important;max-width:100% !important;margin:22px 0 !important;}\n.pow-chart{display:block !important;width:100% !important;max-width:100% !important;height:auto !important;}\n.pow-cta{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:28px 26px;margin:32px 0 0 0;text-align:center;}\n.pow-cta h3{color:#ffffff !important;margin:0 0 10px 0;}\n.pow-cta p{color:#e2e8f0 !important;margin:0;font-size:0.97em;}\n\u003c\/style\u003e\n\n\u003cdiv class=\"pow-hero\"\u003e\n\u003cspan class=\"pow-eyebrow\"\u003eProline X | Performance Optimized Wedge\u003c\/span\u003e\n\u003ch2\u003eTwo GUS-12s, Each in Its Own 0.75 Cubic Feet.\u003c\/h2\u003e\n\u003cp\u003eA dual chamber sealed wedge cut for the ResoNix GUS-12 and nothing else. It sits in the trunk with the tall face against the back of the rear seat and the drivers firing rearward, using the length of the trunk instead of standing in the middle of it.\u003c\/p\u003e\n\u003cdiv class=\"pow-badges\"\u003e\n\u003cspan class=\"pow-badge\"\u003e0.75 CU FT NET PER DRIVER\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eDUAL CHAMBER\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eQTC 0.719\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eTRUNK MOUNT, REAR FIRING\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003e1600W RMS COMBINED\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eBUILT IN TULLAHOMA, TN\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-warn\"\u003e\n\u003cspan class=\"pow-warn-label\"\u003eRead This First\u003c\/span\u003e\n\u003ch3\u003eThis Is Not a Down Fire Enclosure\u003c\/h3\u003e\n\u003cp\u003eThe wedge works in one orientation: tall face flat against the rear seat back, taper running out toward the trunk lid, drivers firing rearward. There are no feet, no baffle clearance gap, and \u003cstrong\u003eno down fire option on this cabinet\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt is cut direct fit to the GUS-12 at a 283.6mm opening. \u003cstrong\u003eA standard 12 will not fit\u003c\/strong\u003e, and would not see the correct airspace if it did.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eBuilt Backward From One Published Number\u003c\/h3\u003e\n\u003cp\u003eResoNix specifies \u003cstrong\u003e0.75 cubic feet of net acoustic airspace\u003c\/strong\u003e per GUS-12, the volume that produces a maximally flat sealed alignment. Each chamber here is built at \u003cstrong\u003e0.80 cubic feet gross\u003c\/strong\u003e. Subtract the driver's 0.046 cubic feet of displacement and each GUS-12 sees 0.754 cubic feet.\u003c\/p\u003e\n\u003cp\u003eThat is not close to the target. That is the target. Total gross volume across both chambers is 1.60 cubic feet, 1.508 net acoustic.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eWhy a Wedge\u003c\/h3\u003e\n\u003cdiv class=\"pow-card-grid\"\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003ePackaging\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eIt Uses the Trunk Lengthwise\u003c\/h4\u003e\n\u003cp\u003eTall face against the rear seat, tapering down as it runs out toward the lid. The cabinet claims the deep space at the base of the trunk and gives height back where the lid closes, so \u003cstrong\u003eyou keep usable trunk\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLoading\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eThe Trunk Is Part of the System\u003c\/h4\u003e\n\u003cp\u003eFiring rearward means output loads into the trunk volume and reaches the cabin through the rear seat and deck. That path is what gives a trunk mounted subwoofer its weight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLocalization\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eHarder to Point At\u003c\/h4\u003e\n\u003cp\u003eBecause the drivers do not radiate straight into the cabin, the low end arrives through the structure rather than as a beam from behind your head, which makes \u003cstrong\u003ekeeping the stage forward\u003c\/strong\u003e easier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eSeparation\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eTwo Sealed Chambers\u003c\/h4\u003e\n\u003cp\u003eA full divider gives each GUS-12 its own airspace. \u003cstrong\u003eNeither cone loads against the other\u003c\/strong\u003e, so the pair stays predictable when both are working hard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eDual Chamber, Not Common Chamber\u003c\/h3\u003e\n\u003cp\u003eEach GUS-12 loads into its own sealed 0.80 cubic foot chamber, isolated by a full divider. With separate chambers, one driver's cone motion does not modulate the air load the other driver sees, so the two stay acoustically independent under hard excursion.\u003c\/p\u003e\n\u003cp\u003eThe GUS-12 is rated at \u003cstrong\u003e800 watts RMS each in its suggested enclosure\u003c\/strong\u003e, so this cabinet is built around a 1600 watt pair. A single Proline X terminal cup is side mounted and pre wired with 12 gauge OFC. This is a raw enclosure, so how you wire the drivers from that cup is your call.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eHow It Is Built\u003c\/h3\u003e\n\u003cdiv class=\"pow-highlight\"\u003e\n\u003ch3\u003eCabinet\u003c\/h3\u003e\n\u003cp\u003eCut on our ShopSabre CNC from Langboard Elite MDF and assembled with \u003cstrong\u003edado and V groove joinery\u003c\/strong\u003e over 0.75 inch panels, with a \u003cstrong\u003edouble baffle at 1.5 inches\u003c\/strong\u003e and a full chamber divider. Angled panel meets are cut as V joints so the faces close on a machined bevel rather than a filled seam.\u003c\/p\u003e\n\u003ch3\u003eMounting Pattern\u003c\/h3\u003e\n\u003cp\u003eThe GUS-12 is in the Proline X CAD library, drawn from the manufacturer's own STEP file. The 283.6mm cutout and the nutsert locations are machined in the same operation from the same origin, so the holes cannot drift relative to each other. \u003cstrong\u003e8\/32 threaded inserts installed at both driver positions\u003c\/strong\u003e with stainless machine screws supplied, matched to the driver's 304mm bolt circle and its eight 6.5mm holes.\u003c\/p\u003e\n\u003ch3\u003eWiring and Damping\u003c\/h3\u003e\n\u003cp\u003eOne Proline X ABS and carbon fiber composite terminal cup, side mounted, pre wired with 12 gauge OFC to both driver positions. Polyfill is installed as a light wall lining to control internal reflections without altering the acoustic volume, because adding fill density would shift the alignment off the 0.75 target.\u003c\/p\u003e\n\u003ch3\u003eFinish\u003c\/h3\u003e\n\u003cp\u003ePlush black carpet with a black acrylic badge on the woofer face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eExternal dimensions are \u003cstrong\u003e30.25 inches wide by 15 inches tall\u003c\/strong\u003e, with depth running \u003cstrong\u003e13.5 inches at the base tapering to 8 inches at the top\u003c\/strong\u003e. Maximum driver mounting depth is 7.5 inches, comfortable for the GUS-12's 115.3mm requirement.\u003c\/p\u003e\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eFront clearance.\u003c\/strong\u003e ResoNix specifies 28mm minimum clearance in front of each GUS-12. At more than 20mm of Klippel verified one way excursion that is the operational envelope of the suspension, not optional headroom. Since the drivers fire rearward into the trunk, anything you load behind the box has to stay outside that envelope. Verify both positions independently.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eEnclosure Performance\u003c\/h3\u003e\n\u003cp\u003eCalculated from ResoNix's published Klippel measured parameters for the GUS-12 D4 coil: \u003cstrong\u003eFs 14.54 Hz, Qts 0.28, Vas 119.35 litres\u003c\/strong\u003e. Nothing here is estimated.\u003c\/p\u003e\n\u003ctable class=\"pow-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Volume Per Driver\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003cth\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.45 cu ft, ResoNix minimum\u003c\/td\u003e\n\u003ctd\u003e0.901\u003c\/td\u003e\n\u003ctd\u003e46.8 Hz\u003c\/td\u003e\n\u003ctd\u003e38.8 Hz\u003c\/td\u003e\n\u003ctd\u003eTighter, more upper bass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.75 cu ft, this enclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.719\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e37.3 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e36.7 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003eMaximally flat. The target.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.50 cu ft, ResoNix maximum\u003c\/td\u003e\n\u003ctd\u003e0.547\u003c\/td\u003e\n\u003ctd\u003e28.4 Hz\u003c\/td\u003e\n\u003ctd\u003e38.9 Hz\u003c\/td\u003e\n\u003ctd\u003eOverdamped, xmax limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"pow-chartbox\"\u003e\n\u003csvg class=\"pow-chart\" width=\"1260\" height=\"420\" viewbox=\"0 0 1260 420\" preserveaspectratio=\"xMidYMid meet\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display:block !important;width:100% !important;max-width:100% !important;height:auto !important;\"\u003e\n\u003crect x=\"0\" y=\"0\" width=\"1260\" height=\"420\" fill=\"#0b1424\"\u003e\u003c\/rect\u003e\n\u003crect x=\"90\" y=\"50\" width=\"1080\" height=\"300\" fill=\"#111c30\" stroke=\"#2c405c\" stroke-width=\"1\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"210\" y1=\"50\" x2=\"210\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"379\" y1=\"50\" x2=\"379\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"592\" y1=\"50\" x2=\"592\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"881\" y1=\"50\" x2=\"881\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"110\" x2=\"1170\" y2=\"110\" stroke=\"#334155\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"155\" x2=\"1170\" y2=\"155\" stroke=\"#64748b\" stroke-width=\"1\" stroke-dasharray=\"6,5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"1178\" y=\"160\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-3 dB\u003c\/text\u003e\n\u003ctext x=\"1178\" y=\"115\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0 dB\u003c\/text\u003e\n\u003cpolyline points=\"90,350 112,350 135,350 158,350 180,344 202,329 225,314 248,300 270,285 292,271 315,256 338,242 360,227 382,213 405,200 428,187 450,174 472,162 495,151 518,141 540,132 562,124 585,118 608,112 630,108 652,105 675,103 698,101 720,100 742,100 765,100 788,100 810,100 832,100 855,101 878,102 900,102 922,103 945,103 968,104 990,104 1012,105 1035,105 1058,106 1080,106 1102,106 1125,107 1148,107 1170,107\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,301 112,289 135,278 158,267 180,257 202,247 225,237 248,228 270,219 292,210 315,202 338,195 360,187 382,181 405,174 428,169 450,163 472,158 495,154 518,149 540,146 562,142 585,139 608,136 630,133 652,131 675,129 698,127 720,125 742,124 765,122 788,121 810,120 832,119 855,118 878,117 900,116 922,116 945,115 968,115 990,114 1012,114 1035,113 1058,113 1080,113 1102,112 1125,112 1148,112 1170,112\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,349 112,335 135,322 158,308 180,295 202,281 225,268 248,255 270,243 292,231 315,219 338,207 360,197 382,186 405,177 428,168 450,160 472,152 495,146 518,140 540,135 562,130 585,127 608,124 630,121 652,119 675,117 698,116 720,114 742,113 765,113 788,112 810,112 832,111 855,111 878,111 900,110 922,110 945,110 968,110 990,110 1012,110 1035,110 1058,110 1080,110 1102,110 1125,110 1148,110 1170,110\" fill=\"none\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/polyline\u003e\n\u003ctext x=\"202\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e20\u003c\/text\u003e\n\u003ctext x=\"371\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e30\u003c\/text\u003e\n\u003ctext x=\"584\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e50\u003c\/text\u003e\n\u003ctext x=\"869\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e100\u003c\/text\u003e\n\u003ctext x=\"1158\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e200\u003c\/text\u003e\n\u003ctext x=\"560\" y=\"404\" font-size=\"17\" fill=\"#22d3ee\" font-family=\"sans-serif\" font-weight=\"700\"\u003eFrequency (Hz)\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"56\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e+4\u003c\/text\u003e\n\u003ctext x=\"58\" y=\"190\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-5\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"265\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-10\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"340\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-15\u003c\/text\u003e\n\u003ctext x=\"102\" y=\"36\" font-size=\"16\" fill=\"#67e8f9\" font-family=\"sans-serif\" font-weight=\"700\"\u003eResoNix GUS-12, per driver. Anechoic half-space, no cabin gain.\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"255\" x2=\"850\" y2=\"255\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"261\" font-size=\"16\" fill=\"#e2e8f0\" font-family=\"sans-serif\" font-weight=\"700\"\u003e0.75 cu ft, this enclosure\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"287\" x2=\"850\" y2=\"287\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"293\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0.45 cu ft and 1.50 cu ft\u003c\/text\u003e\n\u003c\/svg\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eLook at the F3 column, not the Qtc column.\u003c\/strong\u003e Across the entire usable range, from ResoNix's minimum 0.45 up to their maximum 1.5 cubic feet, \u003cstrong\u003eF3 never leaves the 36 to 39 Hz band\u003c\/strong\u003e. Enclosure volume on this driver changes the shape of the response, not how deep it plays. That falls straight out of a 14.5 Hz Fs paired with a 0.28 Qts, which is an unusually low pair for a 12.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWhy not build bigger.\u003c\/strong\u003e ResoNix notes that at their 1.5 cubic foot maximum, the GUS-12 reaches xmax at 20 Hz with only 500 watts, well under its 800 watt rating. The larger box trades away power handling for damping and gains nothing on the bottom end. At 0.75 the driver takes its full rated power.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cp\u003eRun your own numbers with the \u003ca href=\"\/pages\/sealed-box-calculator\"\u003eSealed Box Calculator\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003cp\u003eFull dimensions, cutout, mounting depth, and hardware details are listed under the \u003cstrong\u003eEnclosures\u003c\/strong\u003e tab.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-cta\"\u003e\n\u003ch3\u003eCut for the GUS-12. Built in Tennessee.\u003c\/h3\u003e\n\u003cp\u003eEnclosure only. The ResoNix GUS-12 drivers are purchased separately from ResoNix Sound Solutions. Built to order in Tullahoma, Tennessee on our own CNC equipment. Questions on fitment or amplifier matching, call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Plush Black","offer_id":44493052379225,"sku":"PO 12D-S W GUS","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-enclosure-x-series-fits-kicker-solo-x-8-subwoofer-dualsubwoofer-enclosuresproline-x-1023143.jpg?v=1774078266"},{"product_id":"resonix-gus-12-single-subwoofer-box","title":"Proline X PO 12-S W GUS | Single 12\" Sealed Wedge Subwoofer Enclosure | Built for ResoNix GUS-12","description":"\u003cdiv class=\"pow-wrap\"\u003e\n\u003cstyle\u003e\n.pow-wrap{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;line-height:1.7;color:#cbd5e1 !important;}\n.pow-wrap p{color:#cbd5e1 !important;margin:0 0 14px 0;}\n.pow-wrap strong{color:#67e8f9 !important;}\n.pow-wrap a{color:#22d3ee !important;font-weight:700;text-decoration:underline;}\n.pow-hero{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:32px 28px;margin-bottom:28px;}\n.pow-eyebrow{display:inline-block;color:#67e8f9 !important;font-size:0.72em;font-weight:700;letter-spacing:0.14em;text-transform:uppercase;margin-bottom:10px;}\n.pow-hero h2{color:#ffffff !important;font-size:1.55em;font-weight:700;margin:0 0 12px 0;line-height:1.3;}\n.pow-hero p{color:#e2e8f0 !important;font-size:1.02em;margin:0;}\n.pow-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}\n.pow-badge{display:inline-block;background:rgba(6,182,212,0.18) !important;border:1px solid #06b6d4 !important;color:#a5f3fc !important;font-size:0.75em;font-weight:600;letter-spacing:0.04em;padding:5px 12px;border-radius:4px;}\n.pow-section{margin:30px 0;}\n.pow-section-alt{background:#111c30 !important;border:1px solid #22384f !important;border-radius:8px;padding:26px 24px;margin:30px 0;}\n.pow-wrap h3{color:#22d3ee !important;font-size:1.22em;font-weight:700;margin:0 0 14px 0;line-height:1.35;}\n.pow-wrap h4{color:#22d3ee !important;font-size:1.02em;font-weight:700;margin:0 0 10px 0;}\n.pow-highlight{background:#0f172a !important;border-left:4px solid #06b6d4 !important;padding:20px 22px;margin:28px 0;border-radius:0 6px 6px 0;}\n.pow-highlight h3{color:#22d3ee !important;margin:0 0 10px 0;font-size:1.1em;}\n.pow-highlight h3+h3{margin-top:18px;}\n.pow-highlight p{margin-bottom:10px;font-size:0.97em;color:#cbd5e1 !important;}\n.pow-highlight p:last-child{margin-bottom:0;}\n.pow-alert{background:#0b2b34 !important;border:1px solid #06b6d4 !important;border-radius:6px;padding:14px 18px;margin:22px 0;font-size:0.93em;}\n.pow-alert p{color:#a5f3fc !important;margin:0;}\n.pow-alert strong{color:#67e8f9 !important;}\n.pow-warn{background:#2b1a0b !important;border:2px solid #f59e0b !important;border-radius:8px;padding:20px 22px;margin:26px 0;}\n.pow-warn-label{display:inline-block;background:#f59e0b !important;color:#2b1a0b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:4px 11px;border-radius:3px;margin-bottom:12px;}\n.pow-warn h3{color:#fbbf24 !important;margin:0 0 10px 0;}\n.pow-warn p{color:#fde68a !important;margin:0 0 10px 0;}\n.pow-warn p:last-child{margin-bottom:0;}\n.pow-warn strong{color:#fbbf24 !important;}\n.pow-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:24px 0;}\n@media(max-width:600px){.pow-card-grid{grid-template-columns:1fr;}}\n.pow-card{background:#1a2740 !important;border:1px solid #2c405c !important;border-top:3px solid #06b6d4 !important;border-radius:6px;padding:22px;}\n.pow-card-label{display:inline-block;background:#06b6d4 !important;color:#04222b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:3px 10px;border-radius:3px;margin-bottom:10px;}\n.pow-card h4{margin:0 0 10px 0;}\n.pow-card-divider{height:2px;background:#06b6d4 !important;width:32px;margin-bottom:12px;border-radius:2px;}\n.pow-card p{font-size:0.93em;color:#b6c4d6 !important;margin:0;line-height:1.65;}\n.pow-card p strong{color:#67e8f9 !important;}\n.pow-table{width:100% !important;border-collapse:collapse;margin:22px 0;font-size:0.94em;}\n.pow-table th{background:#0e7490 !important;color:#ffffff !important;text-align:left;padding:11px 14px;font-weight:700;font-size:0.9em;letter-spacing:0.04em;text-transform:uppercase;border-bottom:1px solid #22384f !important;}\n.pow-table td{padding:10px 14px;border-bottom:1px solid #22384f !important;color:#dbe4ef !important;background:#111c30 !important;}\n.pow-table tr:nth-child(even) td{background:#1a2740 !important;}\n.pow-table td:first-child{font-weight:600;color:#67e8f9 !important;width:30%;}\n.pow-chartbox{display:block !important;width:100% !important;max-width:100% !important;margin:22px 0 !important;}\n.pow-chart{display:block !important;width:100% !important;max-width:100% !important;height:auto !important;}\n.pow-cta{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:28px 26px;margin:32px 0 0 0;text-align:center;}\n.pow-cta h3{color:#ffffff !important;margin:0 0 10px 0;}\n.pow-cta p{color:#e2e8f0 !important;margin:0;font-size:0.97em;}\n\u003c\/style\u003e\n\n\u003cdiv class=\"pow-hero\"\u003e\n\u003cspan class=\"pow-eyebrow\"\u003eProline X | Performance Optimized Wedge\u003c\/span\u003e\n\u003ch2\u003eOne GUS-12, Sitting in Exactly 0.75 Cubic Feet.\u003c\/h2\u003e\n\u003cp\u003eA single chamber sealed wedge cut for the ResoNix GUS-12 and nothing else. It sits in the trunk with the tall face against the back of the rear seat and the driver firing rearward, using the length of the trunk instead of standing in the middle of it.\u003c\/p\u003e\n\u003cdiv class=\"pow-badges\"\u003e\n\u003cspan class=\"pow-badge\"\u003e0.75 CU FT NET\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eSINGLE CHAMBER\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eQTC 0.719\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eTRUNK MOUNT, REAR FIRING\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003e800W RMS\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eBUILT IN TULLAHOMA, TN\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-warn\"\u003e\n\u003cspan class=\"pow-warn-label\"\u003eRead This First\u003c\/span\u003e\n\u003ch3\u003eThis Is Not a Down Fire Enclosure\u003c\/h3\u003e\n\u003cp\u003eThe wedge works in one orientation: tall face flat against the rear seat back, taper running out toward the trunk lid, driver firing rearward. There are no feet, no baffle clearance gap, and \u003cstrong\u003eno down fire option on this cabinet\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt is cut direct fit to the GUS-12 at a 283.6mm opening. \u003cstrong\u003eA standard 12 will not fit\u003c\/strong\u003e, and would not see the correct airspace if it did.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eBuilt Backward From One Published Number\u003c\/h3\u003e\n\u003cp\u003eResoNix specifies \u003cstrong\u003e0.75 cubic feet of net acoustic airspace\u003c\/strong\u003e for the GUS-12, the volume that produces a maximally flat sealed alignment. This cabinet is built at \u003cstrong\u003e0.80 cubic feet gross\u003c\/strong\u003e. Subtract the driver's 0.046 cubic feet of displacement and the GUS-12 sees 0.754 cubic feet.\u003c\/p\u003e\n\u003cp\u003eThat is not close to the target. That is the target.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eWhy a Wedge\u003c\/h3\u003e\n\u003cdiv class=\"pow-card-grid\"\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003ePackaging\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eIt Uses the Trunk Lengthwise\u003c\/h4\u003e\n\u003cp\u003eTall face against the rear seat, tapering down as it runs out toward the lid. The cabinet claims the deep space at the base of the trunk and gives height back where the lid closes, so \u003cstrong\u003eyou keep usable trunk\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLoading\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eThe Trunk Is Part of the System\u003c\/h4\u003e\n\u003cp\u003eFiring rearward means output loads into the trunk volume and reaches the cabin through the rear seat and deck. That path is what gives a trunk mounted subwoofer its weight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLocalization\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eHarder to Point At\u003c\/h4\u003e\n\u003cp\u003eBecause the driver does not radiate straight into the cabin, the low end arrives through the structure rather than as a beam from behind your head, which makes \u003cstrong\u003ekeeping the stage forward\u003c\/strong\u003e easier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eFootprint\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003e22.5 Inches Across\u003c\/h4\u003e\n\u003cp\u003eA single 12 in a wedge is a small cabinet. It occupies just over a foot and a half of trunk width and \u003cstrong\u003e11 inches of depth at the floor\u003c\/strong\u003e, tapering to 5.5 at the top.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eHow It Is Built\u003c\/h3\u003e\n\u003cdiv class=\"pow-highlight\"\u003e\n\u003ch3\u003eCabinet\u003c\/h3\u003e\n\u003cp\u003eCut on our ShopSabre CNC from Langboard Elite MDF and assembled with \u003cstrong\u003edado and V groove joinery\u003c\/strong\u003e over 0.75 inch panels, with a \u003cstrong\u003edouble baffle at 1.5 inches\u003c\/strong\u003e. Angled panel meets are cut as V joints so the faces close on a machined bevel rather than a filled seam.\u003c\/p\u003e\n\u003ch3\u003eMounting Pattern\u003c\/h3\u003e\n\u003cp\u003eThe GUS-12 is in the Proline X CAD library, drawn from the manufacturer's own STEP file. The 283.6mm cutout and the nutsert locations are machined in the same operation from the same origin, so the holes cannot drift relative to each other. \u003cstrong\u003e8\/32 threaded inserts\u003c\/strong\u003e with stainless machine screws supplied, matched to the driver's 304mm bolt circle and its eight 6.5mm holes.\u003c\/p\u003e\n\u003ch3\u003eWiring and Damping\u003c\/h3\u003e\n\u003cp\u003eOne Proline X ABS and carbon fiber composite terminal cup, side mounted, pre wired with 12 gauge OFC. Polyfill is installed as a light wall lining to control internal reflections without altering the acoustic volume, because adding fill density would shift the alignment off the 0.75 target.\u003c\/p\u003e\n\u003ch3\u003eFinish\u003c\/h3\u003e\n\u003cp\u003ePlush black carpet with a black acrylic badge on the woofer face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eExternal dimensions are \u003cstrong\u003e22.5 inches wide by 15 inches tall\u003c\/strong\u003e, with depth running \u003cstrong\u003e11 inches at the base tapering to 5.5 inches at the top\u003c\/strong\u003e. Maximum driver mounting depth is 4.75 inches, which accommodates the GUS-12's 115.3mm requirement. The driver flush mounts into the machined recess and installs with the supplied stainless screws. No spacers, no modification.\u003c\/p\u003e\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eFront clearance.\u003c\/strong\u003e ResoNix specifies 28mm minimum clearance in front of the GUS-12. At more than 20mm of Klippel verified one way excursion that is the operational envelope of the suspension, not optional headroom. Since the driver fires rearward into the trunk, anything you load behind the box has to stay outside that envelope.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eEnclosure Performance\u003c\/h3\u003e\n\u003cp\u003eCalculated from ResoNix's published Klippel measured parameters for the GUS-12 D4 coil: \u003cstrong\u003eFs 14.54 Hz, Qts 0.28, Vas 119.35 litres\u003c\/strong\u003e. Nothing here is estimated.\u003c\/p\u003e\n\u003ctable class=\"pow-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003cth\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.45 cu ft, ResoNix minimum\u003c\/td\u003e\n\u003ctd\u003e0.901\u003c\/td\u003e\n\u003ctd\u003e46.8 Hz\u003c\/td\u003e\n\u003ctd\u003e38.8 Hz\u003c\/td\u003e\n\u003ctd\u003eTighter, more upper bass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.75 cu ft, this enclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.719\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e37.3 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e36.7 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003eMaximally flat. The target.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.50 cu ft, ResoNix maximum\u003c\/td\u003e\n\u003ctd\u003e0.547\u003c\/td\u003e\n\u003ctd\u003e28.4 Hz\u003c\/td\u003e\n\u003ctd\u003e38.9 Hz\u003c\/td\u003e\n\u003ctd\u003eOverdamped, xmax limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"pow-chartbox\"\u003e\n\u003csvg class=\"pow-chart\" width=\"1260\" height=\"420\" viewbox=\"0 0 1260 420\" preserveaspectratio=\"xMidYMid meet\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display:block !important;width:100% !important;max-width:100% !important;height:auto !important;\"\u003e\n\u003crect x=\"0\" y=\"0\" width=\"1260\" height=\"420\" fill=\"#0b1424\"\u003e\u003c\/rect\u003e\n\u003crect x=\"90\" y=\"50\" width=\"1080\" height=\"300\" fill=\"#111c30\" stroke=\"#2c405c\" stroke-width=\"1\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"210\" y1=\"50\" x2=\"210\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"379\" y1=\"50\" x2=\"379\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"592\" y1=\"50\" x2=\"592\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"881\" y1=\"50\" x2=\"881\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"110\" x2=\"1170\" y2=\"110\" stroke=\"#334155\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"155\" x2=\"1170\" y2=\"155\" stroke=\"#64748b\" stroke-width=\"1\" stroke-dasharray=\"6,5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"1178\" y=\"160\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-3 dB\u003c\/text\u003e\n\u003ctext x=\"1178\" y=\"115\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0 dB\u003c\/text\u003e\n\u003cpolyline points=\"90,350 112,350 135,350 158,350 180,344 202,329 225,314 248,300 270,285 292,271 315,256 338,242 360,227 382,213 405,200 428,187 450,174 472,162 495,151 518,141 540,132 562,124 585,118 608,112 630,108 652,105 675,103 698,101 720,100 742,100 765,100 788,100 810,100 832,100 855,101 878,102 900,102 922,103 945,103 968,104 990,104 1012,105 1035,105 1058,106 1080,106 1102,106 1125,107 1148,107 1170,107\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,301 112,289 135,278 158,267 180,257 202,247 225,237 248,228 270,219 292,210 315,202 338,195 360,187 382,181 405,174 428,169 450,163 472,158 495,154 518,149 540,146 562,142 585,139 608,136 630,133 652,131 675,129 698,127 720,125 742,124 765,122 788,121 810,120 832,119 855,118 878,117 900,116 922,116 945,115 968,115 990,114 1012,114 1035,113 1058,113 1080,113 1102,112 1125,112 1148,112 1170,112\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,349 112,335 135,322 158,308 180,295 202,281 225,268 248,255 270,243 292,231 315,219 338,207 360,197 382,186 405,177 428,168 450,160 472,152 495,146 518,140 540,135 562,130 585,127 608,124 630,121 652,119 675,117 698,116 720,114 742,113 765,113 788,112 810,112 832,111 855,111 878,111 900,110 922,110 945,110 968,110 990,110 1012,110 1035,110 1058,110 1080,110 1102,110 1125,110 1148,110 1170,110\" fill=\"none\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/polyline\u003e\n\u003ctext x=\"202\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e20\u003c\/text\u003e\n\u003ctext x=\"371\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e30\u003c\/text\u003e\n\u003ctext x=\"584\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e50\u003c\/text\u003e\n\u003ctext x=\"869\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e100\u003c\/text\u003e\n\u003ctext x=\"1158\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e200\u003c\/text\u003e\n\u003ctext x=\"560\" y=\"404\" font-size=\"17\" fill=\"#22d3ee\" font-family=\"sans-serif\" font-weight=\"700\"\u003eFrequency (Hz)\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"56\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e+4\u003c\/text\u003e\n\u003ctext x=\"58\" y=\"190\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-5\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"265\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-10\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"340\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-15\u003c\/text\u003e\n\u003ctext x=\"102\" y=\"36\" font-size=\"16\" fill=\"#67e8f9\" font-family=\"sans-serif\" font-weight=\"700\"\u003eResoNix GUS-12. Anechoic half-space, no cabin gain.\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"255\" x2=\"850\" y2=\"255\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"261\" font-size=\"16\" fill=\"#e2e8f0\" font-family=\"sans-serif\" font-weight=\"700\"\u003e0.75 cu ft, this enclosure\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"287\" x2=\"850\" y2=\"287\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"293\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0.45 cu ft and 1.50 cu ft\u003c\/text\u003e\n\u003c\/svg\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eLook at the F3 column, not the Qtc column.\u003c\/strong\u003e Across the entire usable range, from ResoNix's minimum 0.45 up to their maximum 1.5 cubic feet, \u003cstrong\u003eF3 never leaves the 36 to 39 Hz band\u003c\/strong\u003e. Enclosure volume on this driver changes the shape of the response, not how deep it plays. That falls straight out of a 14.5 Hz Fs paired with a 0.28 Qts, which is an unusually low pair for a 12.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWhy not build bigger.\u003c\/strong\u003e ResoNix notes that at their 1.5 cubic foot maximum, the GUS-12 reaches xmax at 20 Hz with only 500 watts, well under its 800 watt rating. The larger box trades away power handling for damping and gains nothing on the bottom end. At 0.75 the driver takes its full rated power.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cp\u003eRun your own numbers with the \u003ca href=\"\/pages\/sealed-box-calculator\"\u003eSealed Box Calculator\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003cp\u003eFull dimensions, cutout, mounting depth, and hardware details are listed under the \u003cstrong\u003eEnclosures\u003c\/strong\u003e tab.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-cta\"\u003e\n\u003ch3\u003eCut for the GUS-12. Built in Tennessee.\u003c\/h3\u003e\n\u003cp\u003eEnclosure only. The ResoNix GUS-12 driver is purchased separately from ResoNix Sound Solutions. Built to order in Tullahoma, Tennessee on our own CNC equipment. Questions on fitment or amplifier matching, call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44493094191193,"sku":"PO 12-S W GUS","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO12-SWGUSFront.png?v=1786655075"},{"product_id":"resonix-gus-10-dual-subwoofer-box","title":"Proline X PO 10D-S W GUS | Dual 10\" Sealed Wedge Subwoofer Enclosure | Built for ResoNix GUS-10","description":"\u003cdiv class=\"pow-wrap\"\u003e\n\u003cstyle\u003e\n.pow-wrap{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;line-height:1.7;color:#cbd5e1 !important;}\n.pow-wrap p{color:#cbd5e1 !important;margin:0 0 14px 0;}\n.pow-wrap strong{color:#67e8f9 !important;}\n.pow-wrap a{color:#22d3ee !important;font-weight:700;text-decoration:underline;}\n.pow-hero{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:32px 28px;margin-bottom:28px;}\n.pow-eyebrow{display:inline-block;color:#67e8f9 !important;font-size:0.72em;font-weight:700;letter-spacing:0.14em;text-transform:uppercase;margin-bottom:10px;}\n.pow-hero h2{color:#ffffff !important;font-size:1.55em;font-weight:700;margin:0 0 12px 0;line-height:1.3;}\n.pow-hero p{color:#e2e8f0 !important;font-size:1.02em;margin:0;}\n.pow-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}\n.pow-badge{display:inline-block;background:rgba(6,182,212,0.18) !important;border:1px solid #06b6d4 !important;color:#a5f3fc !important;font-size:0.75em;font-weight:600;letter-spacing:0.04em;padding:5px 12px;border-radius:4px;}\n.pow-section{margin:30px 0;}\n.pow-section-alt{background:#111c30 !important;border:1px solid #22384f !important;border-radius:8px;padding:26px 24px;margin:30px 0;}\n.pow-wrap h3{color:#22d3ee !important;font-size:1.22em;font-weight:700;margin:0 0 14px 0;line-height:1.35;}\n.pow-wrap h4{color:#22d3ee !important;font-size:1.02em;font-weight:700;margin:0 0 10px 0;}\n.pow-highlight{background:#0f172a !important;border-left:4px solid #06b6d4 !important;padding:20px 22px;margin:28px 0;border-radius:0 6px 6px 0;}\n.pow-highlight h3{color:#22d3ee !important;margin:0 0 10px 0;font-size:1.1em;}\n.pow-highlight h3+h3{margin-top:18px;}\n.pow-highlight p{margin-bottom:10px;font-size:0.97em;color:#cbd5e1 !important;}\n.pow-highlight p:last-child{margin-bottom:0;}\n.pow-alert{background:#0b2b34 !important;border:1px solid #06b6d4 !important;border-radius:6px;padding:14px 18px;margin:22px 0;font-size:0.93em;}\n.pow-alert p{color:#a5f3fc !important;margin:0;}\n.pow-alert strong{color:#67e8f9 !important;}\n.pow-warn{background:#2b1a0b !important;border:2px solid #f59e0b !important;border-radius:8px;padding:20px 22px;margin:26px 0;}\n.pow-warn-label{display:inline-block;background:#f59e0b !important;color:#2b1a0b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:4px 11px;border-radius:3px;margin-bottom:12px;}\n.pow-warn h3{color:#fbbf24 !important;margin:0 0 10px 0;}\n.pow-warn p{color:#fde68a !important;margin:0 0 10px 0;}\n.pow-warn p:last-child{margin-bottom:0;}\n.pow-warn strong{color:#fbbf24 !important;}\n.pow-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:24px 0;}\n@media(max-width:600px){.pow-card-grid{grid-template-columns:1fr;}}\n.pow-card{background:#1a2740 !important;border:1px solid #2c405c !important;border-top:3px solid #06b6d4 !important;border-radius:6px;padding:22px;}\n.pow-card-label{display:inline-block;background:#06b6d4 !important;color:#04222b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:3px 10px;border-radius:3px;margin-bottom:10px;}\n.pow-card h4{margin:0 0 10px 0;}\n.pow-card-divider{height:2px;background:#06b6d4 !important;width:32px;margin-bottom:12px;border-radius:2px;}\n.pow-card p{font-size:0.93em;color:#b6c4d6 !important;margin:0;line-height:1.65;}\n.pow-card p strong{color:#67e8f9 !important;}\n.pow-table{width:100% !important;border-collapse:collapse;margin:22px 0;font-size:0.94em;}\n.pow-table th{background:#0e7490 !important;color:#ffffff !important;text-align:left;padding:11px 14px;font-weight:700;font-size:0.9em;letter-spacing:0.04em;text-transform:uppercase;border-bottom:1px solid #22384f !important;}\n.pow-table td{padding:10px 14px;border-bottom:1px solid #22384f !important;color:#dbe4ef !important;background:#111c30 !important;}\n.pow-table tr:nth-child(even) td{background:#1a2740 !important;}\n.pow-table td:first-child{font-weight:600;color:#67e8f9 !important;width:30%;}\n.pow-chartbox{display:block !important;width:100% !important;max-width:100% !important;margin:22px 0 !important;}\n.pow-chart{display:block !important;width:100% !important;max-width:100% !important;height:auto !important;}\n.pow-cta{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:28px 26px;margin:32px 0 0 0;text-align:center;}\n.pow-cta h3{color:#ffffff !important;margin:0 0 10px 0;}\n.pow-cta p{color:#e2e8f0 !important;margin:0;font-size:0.97em;}\n\u003c\/style\u003e\n\n\u003cdiv class=\"pow-hero\"\u003e\n\u003cspan class=\"pow-eyebrow\"\u003eProline X | Performance Optimized Wedge\u003c\/span\u003e\n\u003ch2\u003eTwo GUS-10s, Each in Its Own 0.60 Cubic Feet.\u003c\/h2\u003e\n\u003cp\u003eA dual chamber sealed wedge cut for the ResoNix GUS-10 and nothing else. It sits in the trunk with the tall face against the back of the rear seat and the drivers firing rearward, using the length of the trunk instead of standing in the middle of it.\u003c\/p\u003e\n\u003cdiv class=\"pow-badges\"\u003e\n\u003cspan class=\"pow-badge\"\u003e0.60 CU FT NET PER DRIVER\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eDUAL CHAMBER\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eQTC 0.715\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eTRUNK MOUNT, REAR FIRING\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003e1000W RMS COMBINED\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eBUILT IN TULLAHOMA, TN\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-warn\"\u003e\n\u003cspan class=\"pow-warn-label\"\u003eRead This First\u003c\/span\u003e\n\u003ch3\u003eThis Is Not a Down Fire Enclosure\u003c\/h3\u003e\n\u003cp\u003eThe wedge works in one orientation: tall face flat against the rear seat back, taper running out toward the trunk lid, drivers firing rearward. There are no feet, no baffle clearance gap, and \u003cstrong\u003eno down fire option on this cabinet\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt is cut direct fit to the GUS-10 at a 235.3mm opening. \u003cstrong\u003eA standard 10 will not fit\u003c\/strong\u003e, and would not see the correct airspace if it did.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eBuilt Backward From One Published Number\u003c\/h3\u003e\n\u003cp\u003eResoNix specifies \u003cstrong\u003e0.60 cubic feet of net acoustic airspace\u003c\/strong\u003e per GUS-10, the volume that produces a maximally flat sealed alignment. Each chamber here is built at \u003cstrong\u003e0.63 cubic feet gross\u003c\/strong\u003e. Subtract the driver's 0.031 cubic feet of displacement and each GUS-10 sees 0.599 cubic feet.\u003c\/p\u003e\n\u003cp\u003eThat is not close to the target. That is the target. Total gross volume across both chambers is 1.26 cubic feet, 1.198 net acoustic.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eWhy a Wedge\u003c\/h3\u003e\n\u003cdiv class=\"pow-card-grid\"\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003ePackaging\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eIt Uses the Trunk Lengthwise\u003c\/h4\u003e\n\u003cp\u003eTall face against the rear seat, tapering down as it runs out toward the lid. The cabinet claims the deep space at the base of the trunk and gives height back where the lid closes, so \u003cstrong\u003eyou keep usable trunk\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLoading\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eThe Trunk Is Part of the System\u003c\/h4\u003e\n\u003cp\u003eFiring rearward means output loads into the trunk volume and reaches the cabin through the rear seat and deck. That path is what gives a trunk mounted subwoofer its weight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLocalization\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eHarder to Point At\u003c\/h4\u003e\n\u003cp\u003eBecause the drivers do not radiate straight into the cabin, the low end arrives through the structure rather than as a beam from behind your head, which makes \u003cstrong\u003ekeeping the stage forward\u003c\/strong\u003e easier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eSeparation\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eTwo Sealed Chambers\u003c\/h4\u003e\n\u003cp\u003eA full divider gives each GUS-10 its own airspace. \u003cstrong\u003eNeither cone loads against the other\u003c\/strong\u003e, so the pair stays predictable when both are working hard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eDual Chamber, Not Common Chamber\u003c\/h3\u003e\n\u003cp\u003eEach GUS-10 loads into its own sealed 0.63 cubic foot chamber, isolated by a full divider. With separate chambers, one driver's cone motion does not modulate the air load the other driver sees, so the two stay acoustically independent under hard excursion.\u003c\/p\u003e\n\u003cp\u003eThe GUS-10 is rated at \u003cstrong\u003e500 watts RMS each in its suggested enclosure\u003c\/strong\u003e, so this cabinet is built around a 1000 watt pair. A single Proline X terminal cup is side mounted and pre wired with 12 gauge OFC. This is a raw enclosure, so how you wire the drivers from that cup is your call.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eHow It Is Built\u003c\/h3\u003e\n\u003cdiv class=\"pow-highlight\"\u003e\n\u003ch3\u003eCabinet\u003c\/h3\u003e\n\u003cp\u003eCut on our ShopSabre CNC from Langboard Elite MDF and assembled with \u003cstrong\u003edado and V groove joinery\u003c\/strong\u003e over 0.75 inch panels, with a \u003cstrong\u003edouble baffle at 1.5 inches\u003c\/strong\u003e and a full chamber divider. Angled panel meets are cut as V joints so the faces close on a machined bevel rather than a filled seam.\u003c\/p\u003e\n\u003ch3\u003eMounting Pattern\u003c\/h3\u003e\n\u003cp\u003eThe GUS-10 is in the Proline X CAD library, drawn from the manufacturer's own STEP file. The 235.3mm cutout and the nutsert locations are machined in the same operation from the same origin, so the holes cannot drift relative to each other. \u003cstrong\u003e8\/32 threaded inserts installed at both driver positions\u003c\/strong\u003e with stainless machine screws supplied, matched to the driver's 256mm bolt circle and its eight 6.3mm holes.\u003c\/p\u003e\n\u003ch3\u003eWiring and Damping\u003c\/h3\u003e\n\u003cp\u003eOne Proline X ABS and carbon fiber composite terminal cup, side mounted, pre wired with 12 gauge OFC to both driver positions. Polyfill is installed as a light wall lining to control internal reflections without altering the acoustic volume, because adding fill density would shift the alignment off the 0.60 target.\u003c\/p\u003e\n\u003ch3\u003eFinish\u003c\/h3\u003e\n\u003cp\u003ePlush black carpet with a black acrylic badge on the woofer face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eExternal dimensions are \u003cstrong\u003e30.25 inches wide by 13.5 inches tall\u003c\/strong\u003e, with depth running \u003cstrong\u003e12.25 inches at the base tapering to 7.35 inches at the top\u003c\/strong\u003e. Maximum driver mounting depth is 6.5 inches, comfortable for the GUS-10's 101.5mm requirement.\u003c\/p\u003e\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eFront clearance.\u003c\/strong\u003e ResoNix specifies 23mm minimum clearance in front of each GUS-10. At 18mm of Klippel verified one way excursion that is the operational envelope of the suspension, not optional headroom. Since the drivers fire rearward into the trunk, anything you load behind the box has to stay outside that envelope. Verify both positions independently.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eEnclosure Performance\u003c\/h3\u003e\n\u003cp\u003eCalculated from ResoNix's published Klippel measured parameters for the GUS-10 D4 coil: \u003cstrong\u003eFs 16.91 Hz, Qts 0.35, Vas 53.78 litres\u003c\/strong\u003e. Nothing here is estimated.\u003c\/p\u003e\n\u003ctable class=\"pow-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Volume Per Driver\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003cth\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.35 cu ft, ResoNix minimum\u003c\/td\u003e\n\u003ctd\u003e0.887\u003c\/td\u003e\n\u003ctd\u003e42.9 Hz\u003c\/td\u003e\n\u003ctd\u003e35.9 Hz\u003c\/td\u003e\n\u003ctd\u003eTighter, more upper bass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.60 cu ft, this enclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.715\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e34.5 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e34.2 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003eMaximally flat. The target.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.90 cu ft, ResoNix maximum\u003c\/td\u003e\n\u003ctd\u003e0.617\u003c\/td\u003e\n\u003ctd\u003e29.8 Hz\u003c\/td\u003e\n\u003ctd\u003e34.8 Hz\u003c\/td\u003e\n\u003ctd\u003eOverdamped, F3 rises slightly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"pow-chartbox\"\u003e\n\u003csvg class=\"pow-chart\" width=\"1260\" height=\"420\" viewbox=\"0 0 1260 420\" preserveaspectratio=\"xMidYMid meet\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display:block !important;width:100% !important;max-width:100% !important;height:auto !important;\"\u003e\n\u003crect x=\"0\" y=\"0\" width=\"1260\" height=\"420\" fill=\"#0b1424\"\u003e\u003c\/rect\u003e\n\u003crect x=\"90\" y=\"50\" width=\"1080\" height=\"300\" fill=\"#111c30\" stroke=\"#2c405c\" stroke-width=\"1\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"210\" y1=\"50\" x2=\"210\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"379\" y1=\"50\" x2=\"379\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"592\" y1=\"50\" x2=\"592\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"881\" y1=\"50\" x2=\"881\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"110\" x2=\"1170\" y2=\"110\" stroke=\"#334155\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"155\" x2=\"1170\" y2=\"155\" stroke=\"#64748b\" stroke-width=\"1\" stroke-dasharray=\"6,5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"1178\" y=\"160\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-3 dB\u003c\/text\u003e\n\u003ctext x=\"1178\" y=\"115\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0 dB\u003c\/text\u003e\n\u003cpolyline points=\"90,350 112,350 135,350 158,335 180,320 202,306 225,291 248,277 270,262 292,248 315,234 338,220 360,206 382,193 405,180 428,168 450,157 472,146 495,137 518,129 540,122 562,116 585,111 608,108 630,105 652,103 675,102 698,101 720,101 742,101 765,101 788,101 810,102 832,102 855,103 878,103 900,104 922,104 945,105 968,105 990,105 1012,106 1035,106 1058,107 1080,107 1102,107 1125,107 1148,108 1170,108\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,302 112,290 135,278 158,266 180,255 202,243 225,233 248,222 270,212 292,203 315,194 338,186 360,178 382,171 405,164 428,158 450,153 472,148 495,144 518,140 540,136 562,133 585,130 608,128 630,126 652,124 675,122 698,121 720,120 742,118 765,117 788,117 810,116 832,115 855,115 878,114 900,114 922,113 945,113 968,113 990,112 1012,112 1035,112 1058,112 1080,111 1102,111 1125,111 1148,111 1170,111\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,329 112,315 135,302 158,289 180,275 202,263 225,250 248,238 270,226 292,214 315,203 338,192 360,183 382,173 405,165 428,157 450,150 472,144 495,138 518,134 540,130 562,126 585,123 608,121 630,119 652,117 675,116 698,114 720,114 742,113 765,112 788,112 810,111 832,111 855,111 878,111 900,110 922,110 945,110 968,110 990,110 1012,110 1035,110 1058,110 1080,110 1102,110 1125,110 1148,110 1170,110\" fill=\"none\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/polyline\u003e\n\u003ctext x=\"202\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e20\u003c\/text\u003e\n\u003ctext x=\"371\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e30\u003c\/text\u003e\n\u003ctext x=\"584\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e50\u003c\/text\u003e\n\u003ctext x=\"869\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e100\u003c\/text\u003e\n\u003ctext x=\"1158\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e200\u003c\/text\u003e\n\u003ctext x=\"560\" y=\"404\" font-size=\"17\" fill=\"#22d3ee\" font-family=\"sans-serif\" font-weight=\"700\"\u003eFrequency (Hz)\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"56\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e+4\u003c\/text\u003e\n\u003ctext x=\"58\" y=\"190\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-5\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"265\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-10\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"340\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-15\u003c\/text\u003e\n\u003ctext x=\"102\" y=\"36\" font-size=\"16\" fill=\"#67e8f9\" font-family=\"sans-serif\" font-weight=\"700\"\u003eResoNix GUS-10, per driver. Anechoic half-space, no cabin gain.\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"255\" x2=\"850\" y2=\"255\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"261\" font-size=\"16\" fill=\"#e2e8f0\" font-family=\"sans-serif\" font-weight=\"700\"\u003e0.60 cu ft, this enclosure\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"287\" x2=\"850\" y2=\"287\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"293\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0.35 cu ft and 0.90 cu ft\u003c\/text\u003e\n\u003c\/svg\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eLook at the F3 column, not the Qtc column.\u003c\/strong\u003e Across the entire usable range, from ResoNix's minimum 0.35 up to their maximum 0.90 cubic feet, \u003cstrong\u003eF3 moves by less than two hertz\u003c\/strong\u003e, and the largest box is actually slightly higher than this one. Enclosure volume on this driver changes the shape of the response, not how deep it plays. That falls straight out of a 16.9 Hz Fs paired with a 0.35 Qts.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWhy not build bigger.\u003c\/strong\u003e On the GUS-10 the largest recommended volume gives up damping and control without buying a single hertz of extension. F3 at ResoNix's 0.90 maximum is 34.8 Hz against 34.2 Hz here. You would be trading a maximally flat alignment for an overdamped one and getting nothing back.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cp\u003eRun your own numbers with the \u003ca href=\"\/pages\/sealed-box-calculator\"\u003eSealed Box Calculator\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003cp\u003eFull dimensions, cutout, mounting depth, and hardware details are listed under the \u003cstrong\u003eEnclosures\u003c\/strong\u003e tab.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-cta\"\u003e\n\u003ch3\u003eCut for the GUS-10. Built in Tennessee.\u003c\/h3\u003e\n\u003cp\u003eEnclosure only. The ResoNix GUS-10 drivers are purchased separately from ResoNix Sound Solutions. Built to order in Tullahoma, Tennessee on our own CNC equipment. Questions on fitment or amplifier matching, call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44493101760601,"sku":"PO 10D-S W GUS","price":369.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-enclosure-x-series-fits-kicker-solo-x-8-subwoofer-dualsubwoofer-enclosuresproline-x-1023143.jpg?v=1774078266"},{"product_id":"resonix-gus-10-single-subwoofer-box","title":"Proline X PO 10-S W GUS | Single 10\" Sealed Wedge Subwoofer Enclosure | Built for ResoNix GUS-10","description":"\u003cdiv class=\"pow-wrap\"\u003e\n\u003cstyle\u003e\n.pow-wrap{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;line-height:1.7;color:#cbd5e1 !important;}\n.pow-wrap p{color:#cbd5e1 !important;margin:0 0 14px 0;}\n.pow-wrap strong{color:#67e8f9 !important;}\n.pow-wrap a{color:#22d3ee !important;font-weight:700;text-decoration:underline;}\n.pow-hero{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:32px 28px;margin-bottom:28px;}\n.pow-eyebrow{display:inline-block;color:#67e8f9 !important;font-size:0.72em;font-weight:700;letter-spacing:0.14em;text-transform:uppercase;margin-bottom:10px;}\n.pow-hero h2{color:#ffffff !important;font-size:1.55em;font-weight:700;margin:0 0 12px 0;line-height:1.3;}\n.pow-hero p{color:#e2e8f0 !important;font-size:1.02em;margin:0;}\n.pow-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}\n.pow-badge{display:inline-block;background:rgba(6,182,212,0.18) !important;border:1px solid #06b6d4 !important;color:#a5f3fc !important;font-size:0.75em;font-weight:600;letter-spacing:0.04em;padding:5px 12px;border-radius:4px;}\n.pow-section{margin:30px 0;}\n.pow-section-alt{background:#111c30 !important;border:1px solid #22384f !important;border-radius:8px;padding:26px 24px;margin:30px 0;}\n.pow-wrap h3{color:#22d3ee !important;font-size:1.22em;font-weight:700;margin:0 0 14px 0;line-height:1.35;}\n.pow-wrap h4{color:#22d3ee !important;font-size:1.02em;font-weight:700;margin:0 0 10px 0;}\n.pow-highlight{background:#0f172a !important;border-left:4px solid #06b6d4 !important;padding:20px 22px;margin:28px 0;border-radius:0 6px 6px 0;}\n.pow-highlight h3{color:#22d3ee !important;margin:0 0 10px 0;font-size:1.1em;}\n.pow-highlight h3+h3{margin-top:18px;}\n.pow-highlight p{margin-bottom:10px;font-size:0.97em;color:#cbd5e1 !important;}\n.pow-highlight p:last-child{margin-bottom:0;}\n.pow-alert{background:#0b2b34 !important;border:1px solid #06b6d4 !important;border-radius:6px;padding:14px 18px;margin:22px 0;font-size:0.93em;}\n.pow-alert p{color:#a5f3fc !important;margin:0;}\n.pow-alert strong{color:#67e8f9 !important;}\n.pow-warn{background:#2b1a0b !important;border:2px solid #f59e0b !important;border-radius:8px;padding:20px 22px;margin:26px 0;}\n.pow-warn-label{display:inline-block;background:#f59e0b !important;color:#2b1a0b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:4px 11px;border-radius:3px;margin-bottom:12px;}\n.pow-warn h3{color:#fbbf24 !important;margin:0 0 10px 0;}\n.pow-warn p{color:#fde68a !important;margin:0 0 10px 0;}\n.pow-warn p:last-child{margin-bottom:0;}\n.pow-warn strong{color:#fbbf24 !important;}\n.pow-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:24px 0;}\n@media(max-width:600px){.pow-card-grid{grid-template-columns:1fr;}}\n.pow-card{background:#1a2740 !important;border:1px solid #2c405c !important;border-top:3px solid #06b6d4 !important;border-radius:6px;padding:22px;}\n.pow-card-label{display:inline-block;background:#06b6d4 !important;color:#04222b !important;font-size:0.68em;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:3px 10px;border-radius:3px;margin-bottom:10px;}\n.pow-card h4{margin:0 0 10px 0;}\n.pow-card-divider{height:2px;background:#06b6d4 !important;width:32px;margin-bottom:12px;border-radius:2px;}\n.pow-card p{font-size:0.93em;color:#b6c4d6 !important;margin:0;line-height:1.65;}\n.pow-card p strong{color:#67e8f9 !important;}\n.pow-table{width:100% !important;border-collapse:collapse;margin:22px 0;font-size:0.94em;}\n.pow-table th{background:#0e7490 !important;color:#ffffff !important;text-align:left;padding:11px 14px;font-weight:700;font-size:0.9em;letter-spacing:0.04em;text-transform:uppercase;border-bottom:1px solid #22384f !important;}\n.pow-table td{padding:10px 14px;border-bottom:1px solid #22384f !important;color:#dbe4ef !important;background:#111c30 !important;}\n.pow-table tr:nth-child(even) td{background:#1a2740 !important;}\n.pow-table td:first-child{font-weight:600;color:#67e8f9 !important;width:30%;}\n.pow-chartbox{display:block !important;width:100% !important;max-width:100% !important;margin:22px 0 !important;}\n.pow-chart{display:block !important;width:100% !important;max-width:100% !important;height:auto !important;}\n.pow-cta{background:linear-gradient(135deg,#0f172a 0%,#0e7490 100%) !important;border-radius:8px;padding:28px 26px;margin:32px 0 0 0;text-align:center;}\n.pow-cta h3{color:#ffffff !important;margin:0 0 10px 0;}\n.pow-cta p{color:#e2e8f0 !important;margin:0;font-size:0.97em;}\n\u003c\/style\u003e\n\n\u003cdiv class=\"pow-hero\"\u003e\n\u003cspan class=\"pow-eyebrow\"\u003eProline X | Performance Optimized Wedge\u003c\/span\u003e\n\u003ch2\u003eOne GUS-10, Sitting in Exactly 0.60 Cubic Feet.\u003c\/h2\u003e\n\u003cp\u003eA single chamber sealed wedge cut for the ResoNix GUS-10 and nothing else. It sits in the trunk with the tall face against the back of the rear seat and the driver firing rearward, using the length of the trunk instead of standing in the middle of it.\u003c\/p\u003e\n\u003cdiv class=\"pow-badges\"\u003e\n\u003cspan class=\"pow-badge\"\u003e0.60 CU FT NET\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eSINGLE CHAMBER\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eQTC 0.715\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eTRUNK MOUNT, REAR FIRING\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003e500W RMS\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eBUILT IN TULLAHOMA, TN\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-warn\"\u003e\n\u003cspan class=\"pow-warn-label\"\u003eRead This First\u003c\/span\u003e\n\u003ch3\u003eThis Is Not a Down Fire Enclosure\u003c\/h3\u003e\n\u003cp\u003eThe wedge works in one orientation: tall face flat against the rear seat back, taper running out toward the trunk lid, driver firing rearward. There are no feet, no baffle clearance gap, and \u003cstrong\u003eno down fire option on this cabinet\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt is cut direct fit to the GUS-10 at a 235.3mm opening. \u003cstrong\u003eA standard 10 will not fit\u003c\/strong\u003e, and would not see the correct airspace if it did.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eBuilt Backward From One Published Number\u003c\/h3\u003e\n\u003cp\u003eResoNix specifies \u003cstrong\u003e0.60 cubic feet of net acoustic airspace\u003c\/strong\u003e for the GUS-10, the volume that produces a maximally flat sealed alignment. This cabinet is built at \u003cstrong\u003e0.63 cubic feet gross\u003c\/strong\u003e. Subtract the driver's 0.031 cubic feet of displacement and the GUS-10 sees 0.599 cubic feet.\u003c\/p\u003e\n\u003cp\u003eThat is not close to the target. That is the target.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eWhy a Wedge\u003c\/h3\u003e\n\u003cdiv class=\"pow-card-grid\"\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003ePackaging\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eIt Uses the Trunk Lengthwise\u003c\/h4\u003e\n\u003cp\u003eTall face against the rear seat, tapering down as it runs out toward the lid. The cabinet claims the deep space at the base of the trunk and gives height back where the lid closes, so \u003cstrong\u003eyou keep usable trunk\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLoading\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eThe Trunk Is Part of the System\u003c\/h4\u003e\n\u003cp\u003eFiring rearward means output loads into the trunk volume and reaches the cabin through the rear seat and deck. That path is what gives a trunk mounted subwoofer its weight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eLocalization\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eHarder to Point At\u003c\/h4\u003e\n\u003cp\u003eBecause the driver does not radiate straight into the cabin, the low end arrives through the structure rather than as a beam from behind your head, which makes \u003cstrong\u003ekeeping the stage forward\u003c\/strong\u003e easier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eFootprint\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eThe Smallest of the Wedges\u003c\/h4\u003e\n\u003cp\u003e19.5 inches across, 13.5 tall, and \u003cstrong\u003e11 inches deep at the floor\u003c\/strong\u003e tapering to 6.25 at the top. If the trunk opening is narrow or the parcel shelf sits low, this is the cabinet that goes in.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eHow It Is Built\u003c\/h3\u003e\n\u003cdiv class=\"pow-highlight\"\u003e\n\u003ch3\u003eCabinet\u003c\/h3\u003e\n\u003cp\u003eCut on our ShopSabre CNC from Langboard Elite MDF and assembled with \u003cstrong\u003edado and V groove joinery\u003c\/strong\u003e over 0.75 inch panels, with a \u003cstrong\u003edouble baffle at 1.5 inches\u003c\/strong\u003e. Angled panel meets are cut as V joints so the faces close on a machined bevel rather than a filled seam.\u003c\/p\u003e\n\u003ch3\u003eMounting Pattern\u003c\/h3\u003e\n\u003cp\u003eThe GUS-10 is in the Proline X CAD library, drawn from the manufacturer's own STEP file. The 235.3mm cutout and the nutsert locations are machined in the same operation from the same origin, so the holes cannot drift relative to each other. \u003cstrong\u003e8\/32 threaded inserts\u003c\/strong\u003e with stainless machine screws supplied, matched to the driver's 256mm bolt circle and its eight 6.3mm holes.\u003c\/p\u003e\n\u003ch3\u003eWiring and Damping\u003c\/h3\u003e\n\u003cp\u003eOne Proline X ABS and carbon fiber composite terminal cup, side mounted, pre wired with 12 gauge OFC. Polyfill is installed as a light wall lining to control internal reflections without altering the acoustic volume, because adding fill density would shift the alignment off the 0.60 target.\u003c\/p\u003e\n\u003ch3\u003eFinish\u003c\/h3\u003e\n\u003cp\u003ePlush black carpet with a black acrylic badge on the woofer face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eExternal dimensions are \u003cstrong\u003e19.5 inches wide by 13.5 inches tall\u003c\/strong\u003e, with depth running \u003cstrong\u003e11 inches at the base tapering to 6.25 inches at the top\u003c\/strong\u003e. Maximum driver mounting depth is 5.25 inches, comfortable for the GUS-10's 101.5mm requirement.\u003c\/p\u003e\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eFront clearance.\u003c\/strong\u003e ResoNix specifies 23mm minimum clearance in front of the GUS-10. At 18mm of Klippel verified one way excursion that is the operational envelope of the suspension, not optional headroom. Since the driver fires rearward into the trunk, anything you load behind the box has to stay outside that envelope.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eEnclosure Performance\u003c\/h3\u003e\n\u003cp\u003eCalculated from ResoNix's published Klippel measured parameters for the GUS-10 D4 coil: \u003cstrong\u003eFs 16.91 Hz, Qts 0.35, Vas 53.78 litres\u003c\/strong\u003e. Nothing here is estimated.\u003c\/p\u003e\n\u003ctable class=\"pow-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Volume\u003c\/th\u003e\n\u003cth\u003eQtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003cth\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.35 cu ft, ResoNix minimum\u003c\/td\u003e\n\u003ctd\u003e0.887\u003c\/td\u003e\n\u003ctd\u003e42.9 Hz\u003c\/td\u003e\n\u003ctd\u003e35.9 Hz\u003c\/td\u003e\n\u003ctd\u003eTighter, more upper bass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.60 cu ft, this enclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e0.715\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e34.5 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e34.2 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003eMaximally flat. The target.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.90 cu ft, ResoNix maximum\u003c\/td\u003e\n\u003ctd\u003e0.617\u003c\/td\u003e\n\u003ctd\u003e29.8 Hz\u003c\/td\u003e\n\u003ctd\u003e34.8 Hz\u003c\/td\u003e\n\u003ctd\u003eOverdamped, F3 rises slightly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"pow-chartbox\"\u003e\n\u003csvg class=\"pow-chart\" width=\"1260\" height=\"420\" viewbox=\"0 0 1260 420\" preserveaspectratio=\"xMidYMid meet\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display:block !important;width:100% !important;max-width:100% !important;height:auto !important;\"\u003e\n\u003crect x=\"0\" y=\"0\" width=\"1260\" height=\"420\" fill=\"#0b1424\"\u003e\u003c\/rect\u003e\n\u003crect x=\"90\" y=\"50\" width=\"1080\" height=\"300\" fill=\"#111c30\" stroke=\"#2c405c\" stroke-width=\"1\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"210\" y1=\"50\" x2=\"210\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"379\" y1=\"50\" x2=\"379\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"592\" y1=\"50\" x2=\"592\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"881\" y1=\"50\" x2=\"881\" y2=\"350\" stroke=\"#22384f\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"110\" x2=\"1170\" y2=\"110\" stroke=\"#334155\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"90\" y1=\"155\" x2=\"1170\" y2=\"155\" stroke=\"#64748b\" stroke-width=\"1\" stroke-dasharray=\"6,5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"1178\" y=\"160\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-3 dB\u003c\/text\u003e\n\u003ctext x=\"1178\" y=\"115\" font-size=\"15\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0 dB\u003c\/text\u003e\n\u003cpolyline points=\"90,350 112,350 135,350 158,335 180,320 202,306 225,291 248,277 270,262 292,248 315,234 338,220 360,206 382,193 405,180 428,168 450,157 472,146 495,137 518,129 540,122 562,116 585,111 608,108 630,105 652,103 675,102 698,101 720,101 742,101 765,101 788,101 810,102 832,102 855,103 878,103 900,104 922,104 945,105 968,105 990,105 1012,106 1035,106 1058,107 1080,107 1102,107 1125,107 1148,108 1170,108\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,302 112,290 135,278 158,266 180,255 202,243 225,233 248,222 270,212 292,203 315,194 338,186 360,178 382,171 405,164 428,158 450,153 472,148 495,144 518,140 540,136 562,133 585,130 608,128 630,126 652,124 675,122 698,121 720,120 742,118 765,117 788,117 810,116 832,115 855,115 878,114 900,114 922,113 945,113 968,113 990,112 1012,112 1035,112 1058,112 1080,111 1102,111 1125,111 1148,111 1170,111\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,329 112,315 135,302 158,289 180,275 202,263 225,250 248,238 270,226 292,214 315,203 338,192 360,183 382,173 405,165 428,157 450,150 472,144 495,138 518,134 540,130 562,126 585,123 608,121 630,119 652,117 675,116 698,114 720,114 742,113 765,112 788,112 810,111 832,111 855,111 878,111 900,110 922,110 945,110 968,110 990,110 1012,110 1035,110 1058,110 1080,110 1102,110 1125,110 1148,110 1170,110\" fill=\"none\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/polyline\u003e\n\u003ctext x=\"202\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e20\u003c\/text\u003e\n\u003ctext x=\"371\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e30\u003c\/text\u003e\n\u003ctext x=\"584\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e50\u003c\/text\u003e\n\u003ctext x=\"869\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e100\u003c\/text\u003e\n\u003ctext x=\"1158\" y=\"375\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e200\u003c\/text\u003e\n\u003ctext x=\"560\" y=\"404\" font-size=\"17\" fill=\"#22d3ee\" font-family=\"sans-serif\" font-weight=\"700\"\u003eFrequency (Hz)\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"56\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e+4\u003c\/text\u003e\n\u003ctext x=\"58\" y=\"190\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-5\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"265\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-10\u003c\/text\u003e\n\u003ctext x=\"48\" y=\"340\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e-15\u003c\/text\u003e\n\u003ctext x=\"102\" y=\"36\" font-size=\"16\" fill=\"#67e8f9\" font-family=\"sans-serif\" font-weight=\"700\"\u003eResoNix GUS-10. Anechoic half-space, no cabin gain.\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"255\" x2=\"850\" y2=\"255\" stroke=\"#22d3ee\" stroke-width=\"4.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"261\" font-size=\"16\" fill=\"#e2e8f0\" font-family=\"sans-serif\" font-weight=\"700\"\u003e0.60 cu ft, this enclosure\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"287\" x2=\"850\" y2=\"287\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"862\" y=\"293\" font-size=\"16\" fill=\"#94a3b8\" font-family=\"sans-serif\"\u003e0.35 cu ft and 0.90 cu ft\u003c\/text\u003e\n\u003c\/svg\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eLook at the F3 column, not the Qtc column.\u003c\/strong\u003e Across the entire usable range, from ResoNix's minimum 0.35 up to their maximum 0.90 cubic feet, \u003cstrong\u003eF3 moves by less than two hertz\u003c\/strong\u003e, and the largest box is actually slightly higher than this one. Enclosure volume on this driver changes the shape of the response, not how deep it plays. That falls straight out of a 16.9 Hz Fs paired with a 0.35 Qts.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWhy not build bigger.\u003c\/strong\u003e On the GUS-10 the largest recommended volume gives up damping and control without buying a single hertz of extension. F3 at ResoNix's 0.90 maximum is 34.8 Hz against 34.2 Hz here. You would be trading a maximally flat alignment for an overdamped one and getting nothing back.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cp\u003eRun your own numbers with the \u003ca href=\"\/pages\/sealed-box-calculator\"\u003eSealed Box Calculator\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003cp\u003eFull dimensions, cutout, mounting depth, and hardware details are listed under the \u003cstrong\u003eEnclosures\u003c\/strong\u003e tab.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-cta\"\u003e\n\u003ch3\u003eCut for the GUS-10. Built in Tennessee.\u003c\/h3\u003e\n\u003cp\u003eEnclosure only. The ResoNix GUS-10 driver is purchased separately from ResoNix Sound Solutions. Built to order in Tullahoma, Tennessee on our own CNC equipment. Questions on fitment or amplifier matching, call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44493105397849,"sku":"PO 10-S W GUS","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO10-SWGUSFront.png?v=1786656198"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-image-dynamics-idq-12","title":"Performance Optimized Wedge Sealed 12\" Enclosure | Image Dynamics IDQ 12","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Image Dynamics IDQ 12\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 12\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the IDQ12 V4\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.4 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e24\" × 15\" × 8.75\/14.2\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe IDQ12 V4 in a Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003eThe Image Dynamics IDQ12 V4 is one of the most respected SQ 12\" subwoofers on the market — a 375-watt RMS driver with 14.5mm linear Xmax, a 280 oz motor, and a field-replaceable cone assembly that has been used in sound quality competition for over a decade. The IDQ12 needs a properly sized sealed cabinet to deliver on its potential, and it needs one that actually fits in real trunks without eating the entire cargo bay.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 12 for IDQ is that cabinet. The wedge geometry has the woofer mounted on the vertical trunk-lid-side face, firing rearward into the trunk cavity. The angled face on the opposite side tucks against the rear seat back, matching the natural lean of most factory rear seats. Same driver-specific engineering as our rectangular PO enclosures, packaged in a shape that installs cleanly against the seat and uses the trunk cavity for acoustic loading.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e1.4 cubic feet gross internal volume (approximately 1.3 cubic feet net after driver displacement) — inside Image Dynamics' specified sealed range of 0.65 to 1.8 cubic feet for the IDQ12 V4, sitting well into the audiophile side where the driver's low-end extension fully develops.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (8.75\" at the top, 14.2\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The wedge fills the trunk shelf area behind the seat cleanly.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (24\" wide × 15\" tall) is where the IDQ12 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. This is the classic SQ trunk-load install pattern.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less localized presentation than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePreserves Trunk Cargo Space\u003c\/h4\u003e\n        \u003cp\u003eThe wedge tucks against the seat back where cargo can't be stored anyway. The bottom face sits flat and stable on the trunk floor. Cargo space in front of the wedge (toward the trunk lid) stays usable for daily driving.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered Around the IDQ12 V4's Parameters\u003c\/h2\u003e\n    \u003cp\u003eImage Dynamics specifies the IDQ12 V4 for sealed enclosures between 0.65 cubic feet (compact) and 1.8 cubic feet (audiophile). The Performance Optimized Wedge Sealed 12 delivers 1.4 cubic feet gross — approximately 1.3 cubic feet net after driver displacement — which sits well into the audiophile portion of ID's specified range. That's where the IDQ12's low-end extension characteristics fully develop and Qtc lands in the balanced range for musical accuracy.\u003c\/p\u003e\n    \u003ch3\u003eVolume Selection\u003c\/h3\u003e\n    \u003cp\u003e1.3 cubic feet net (1.4 gross) is above ID's compact spec but below the maximum audiophile spec — the middle-upper portion of the range where the IDQ12 delivers both extension and transient control. Smaller cabinets like 0.65 cubic feet tighten the response and dry out the low end. Larger cabinets like 1.8 push toward loose. 1.3 net is the balanced audiophile target.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the IDQ12 V4's exact 10.937\" cutout specification. The IDQ12's 5.91\" mounting depth fits comfortably inside the cabinet — clearance from the vertical baffle to the interior of the angled seat-side face ranges from 8.75\" at the top to 14.2\" at the bottom. 8\/32 threaded inserts are pressed into the baffle backside for secure driver retention.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at real power levels.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the volume target and the mating angles between the top and bottom edges — tolerances that manual fabrication can't reliably hold. Internal volume is verified on every unit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a \u003cstrong\u003eDual 2-ohm\u003c\/strong\u003e or \u003cstrong\u003eDual 4-ohm\u003c\/strong\u003e Image Dynamics IDQ12 V4 driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your IDQ12? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the IDQ12 V4 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Image Dynamics IDQ12 V4 is a dual voice coil driver available in Dual 2-ohm (D2) or Dual 4-ohm (D4) configurations. The pre-wired terminal cup accepts either impedance version via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003eA Dual 2-ohm IDQ12 wired in parallel presents a 1-ohm load. A Dual 2-ohm wired in series presents 4 ohms. A Dual 4-ohm IDQ12 wired in parallel presents 2 ohms, and wired in series presents 8 ohms. The IDQ12 is rated for 375 watts RMS — aim for a clean, well-regulated amplifier delivering 300 to 400 watts at your chosen impedance. The IDQ rewards clean power, not headline peak numbers.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eThe IDQ12 in a Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003eWedge geometry that tucks against the rear seat back, driver-specific 1.4 cubic foot airspace tuned to the IDQ12 V4's audiophile spec range, and Performance Series V-groove and dado construction. Woofer fires rearward into the trunk cavity for smoother acoustic loading — built for the IDQ12 you already chose.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44527877783641,"sku":"PO 12-S W IDQ","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO12-SWIDQFront.png?v=1786740287"},{"product_id":"performance-optimized-wedge-sealed-10-enclosure-image-dynamics-idq-10","title":"Performance Optimized Wedge Sealed 10\" Enclosure | Image Dynamics IDQ 10","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Image Dynamics IDQ 10\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 10\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the IDQ10 V4\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.0 ft³ Airspace\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eDriver-Specific\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e20\" × 14\" × 8.4\/13.5\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe IDQ10 V4 in a Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003eThe Image Dynamics IDQ10 V4 is the reference-standard SQ 10\" subwoofer — 250 watts RMS nominal power handling, 14.5mm linear Xmax, a 180 oz Extended Y-35 motor, and a field-replaceable cone assembly that has been used in sound quality competition for over a decade. The IDQ10 needs a properly sized sealed cabinet to deliver on its potential, and it needs one that actually fits in real trunks without eating the entire cargo bay.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 10 for IDQ is that cabinet. The wedge geometry has the woofer mounted on the vertical trunk-lid-side face, firing rearward into the trunk cavity. The angled face on the opposite side tucks against the rear seat back, matching the natural lean of most factory rear seats. Same driver-specific engineering as our rectangular PO enclosures, packaged in a shape that installs cleanly against the seat and uses the trunk cavity for acoustic loading.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e1.0 cubic feet of internal airspace — sitting between Image Dynamics' 0.60 cu ft Compact and 1.10 cu ft Universal sealed alignments for the IDQ10 V4. Tuned for tight, controlled response with strong low-end extension and 350 watts of maximum power handling in this alignment.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (8.4\" at the top, 13.5\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The wedge fills the trunk shelf area behind the seat cleanly.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (20\" wide × 14\" tall) is where the IDQ10 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. This is the classic SQ trunk-load install pattern.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less localized presentation than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePreserves Trunk Cargo Space\u003c\/h4\u003e\n        \u003cp\u003eThe wedge tucks against the seat back where cargo can't be stored anyway. The bottom face sits flat and stable on the trunk floor. Cargo space in front of the wedge (toward the trunk lid) stays usable for daily driving.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered Around the IDQ10 V4's Parameters\u003c\/h2\u003e\n    \u003cp\u003eImage Dynamics specifies the IDQ10 V4 across three sealed alignments: 0.60 cubic feet (Compact, 450 watts max), 1.10 cubic feet (Universal, 350 watts max), and 1.60 cubic feet (Audiophile, 250 watts max). The Performance Optimized Wedge Sealed 10 delivers 1.0 cubic feet of airspace — sitting between Compact and Universal, dialed toward the tighter, more controlled side of the IDQ's response range while still delivering meaningful low-end extension.\u003c\/p\u003e\n    \u003ch3\u003eVolume Selection\u003c\/h3\u003e\n    \u003cp\u003e1.0 cubic feet is the sweet spot for an IDQ10 V4 build that wants transient tightness without giving up too much low-end weight. Below 0.60 cubic feet the driver overdamps and dries out. Above 1.10 the response loosens and midbass tightness starts to soften. 1.0 cubic feet delivers a Qtc landing near the SQ target with maximum power handling of approximately 350 watts in this alignment.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the IDQ10 V4's exact 9.57\" cutout specification. The IDQ10's 5.81\" mounting depth fits comfortably inside the cabinet — clearance from the vertical baffle to the interior of the angled seat-side face ranges from 8.4\" at the top to 13.5\" at the bottom. 8\/32 threaded inserts are pressed into the baffle backside for secure driver retention.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at real power levels.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the volume target and the mating angles between the top and bottom edges — tolerances that manual fabrication can't reliably hold. Internal volume is verified on every unit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a \u003cstrong\u003eDual 2-ohm\u003c\/strong\u003e or \u003cstrong\u003eDual 4-ohm\u003c\/strong\u003e Image Dynamics IDQ10 V4 driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your IDQ10? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the IDQ10 V4 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Image Dynamics IDQ10 V4 is a dual voice coil driver available in Dual 2-ohm (D2) or Dual 4-ohm (D4) configurations. The pre-wired terminal cup accepts either impedance version via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003eA Dual 2-ohm IDQ10 wired in parallel presents a 1-ohm load. A Dual 2-ohm wired in series presents 4 ohms. A Dual 4-ohm IDQ10 wired in parallel presents 2 ohms, and wired in series presents 8 ohms. The IDQ10 V4 nominal power rating is 250 watts RMS, with maximum power handling of approximately 350 watts in this 1.0 cubic foot alignment. Aim for a clean, well-regulated amplifier delivering 250 to 350 watts at your chosen impedance. The IDQ rewards clean power, not headline peak numbers.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eThe IDQ10 in a Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003eWedge geometry that tucks against the rear seat back, driver-specific 1.0 cubic foot airspace tuned to the IDQ10 V4, and Performance Series V-groove and dado construction. Woofer fires rearward into the trunk cavity for smoother acoustic loading — built for the IDQ10 you already chose.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44527917989977,"sku":"PO 10-S W IDQ","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO10-SWIDQFront.png?v=1786740963"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-jl-audio-12w6v3-1","title":"Performance Optimized Wedge Sealed 12\" Enclosure | JL Audio 12W6v3","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | JL Audio 12W6v3\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 12\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the JL Audio W6v3\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.105 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e1.0 ft³ Net (JL Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e20\" × 15\" × 8\/13.5\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe JL Audio 12W6v3 in JL's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 12W6v3 is one of the most refined 12\" subwoofers in car audio — 600 watts RMS continuous, a DMA-optimized motor derived from the W7AE flagship platform, a mineral-filled polypropylene cone with rubber surround, and a rigid cast-alloy frame that resists flex under real power. JL Audio designed the W6v3 to deliver flagship-caliber SQ performance in compact sealed volumes, and JL specifies exactly 1.0 cubic feet net for the 12W6v3's optimum sealed alignment.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 12 for JL Audio W6 is engineered to hit that target precisely. 1.105 cubic feet gross internal volume minus the 12W6v3's 0.105 cubic foot driver displacement equals exactly 1.0 cubic foot net — the volume JL's engineers spec'd the W6v3 around, delivering the published F3 of 41.62 Hz and Qtc of 0.79. This isn't a \"close enough\" cabinet. It's JL's number, in a trunk-friendly wedge geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e1.105 cubic feet gross = 1.0 cubic foot net after the 12W6v3's 0.105 cubic foot driver displacement. Exactly matches JL Audio's published optimum sealed volume for the 12W6v3 (Qtc 0.79, F3 41.62 Hz). The wedge geometry mounts the woofer on the vertical trunk-lid-side face, firing rearward into the trunk cavity.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (8\" at the top, 13.5\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The wedge fills the trunk shelf area behind the seat cleanly.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (20\" wide × 15\" tall) is where the 12W6v3 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. This is the classic SQ trunk-load install pattern.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less localized presentation than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePreserves Trunk Cargo Space\u003c\/h4\u003e\n        \u003cp\u003eThe wedge tucks against the seat back where cargo can't be stored anyway. The bottom face sits flat and stable on the trunk floor. Cargo space in front of the wedge (toward the trunk lid) stays usable for daily driving.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to JL Audio's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eJL Audio publishes exactly one recommended sealed volume for the 12W6v3: 1.0 cubic foot net internal. In that alignment the driver delivers F3 of 41.62 Hz, Qtc of 0.79, and Fc of 45.99 Hz — the response curve JL's engineers targeted when they designed the driver. The Performance Optimized Wedge Sealed 12 delivers 1.105 cubic feet gross internal, which after subtracting the 12W6v3's 0.105 cubic foot displacement lands at exactly 1.0 cubic foot net. Not approximately. Exactly.\u003c\/p\u003e\n    \u003ch3\u003eWhy JL's Specification Matters\u003c\/h3\u003e\n    \u003cp\u003eSome drivers are forgiving about enclosure volume. The 12W6v3 isn't one of them. JL engineered this driver with a specific Qtc target in mind, and volume changes shift Qtc noticeably. Below 1.0 cubic feet the driver overdamps and loses low-end weight. Above 1.0 the Qtc drops and midbass tightness softens. 1.0 net is where the driver sounds like the driver JL designed. This cabinet delivers exactly that.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the 12W6v3's exact 11.02\" cutout specification. The 12W6v3's 7.52\" mounting depth plus the required 0.50\" pole vent clearance fits inside the cabinet — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from 8\" at the top to 13.5\" at the bottom, providing ample clearance for the driver's motor and cooling requirements. 8\/32 threaded inserts are pressed into the baffle backside for secure driver retention.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at the 600 watts RMS the 12W6v3 handles.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the volume target and the mating angles between the top and bottom edges — tolerances that manual fabrication can't reliably hold. Internal volume is verified on every unit to ensure the JL-spec 1.0 cubic foot net target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a JL Audio 12W6v3-D4 driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your 12W6v3? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the JL Audio 12W6v3 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 12W6v3 is a dual voice coil driver available in Dual 4-ohm configuration only. The pre-wired terminal cup accepts either wiring configuration via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003eWired in parallel, the 12W6v3 presents a 2-ohm load. Wired in series, it presents 8 ohms. The 12W6v3 is rated for 600 watts RMS continuous, with JL Audio recommending amplifier power in the 200 to 600 watt RMS range. Aim for a clean, well-regulated amplifier delivering 300 to 500 watts RMS at your chosen impedance for balanced output and long-term reliability.\u003c\/p\u003e\n    \u003cp\u003eImportant: JL Audio explicitly recommends against using this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance. Use your amplifier's active low-pass filter to set the sub's upper cutoff, typically between 80 and 100 Hz for musical accuracy.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eJL's Spec Volume, in a Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003eExactly 1.0 cubic foot net internal — JL Audio's published optimum sealed volume for the 12W6v3 — in a trunk-friendly wedge geometry that fires the driver rearward into the trunk cavity. Precise driver-specific engineering for the W6 you already chose.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44528206741593,"sku":"PO 12-S W W6","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO12-SWW6Front.png?v=1786844724"},{"product_id":"performance-optimized-wedge-sealed-10-enclosure-jl-audio-10w6v3","title":"Performance Optimized Wedge Sealed 10\" Enclosure | JL Audio 10W6v3","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | JL Audio 10W6v3\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 10\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the JL Audio W6v3\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e0.63 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e0.55 ft³ Net (JL Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e15\" × 12.25\" × 8.85\/13.25\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe JL Audio 10W6v3 in JL's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 10W6v3 is one of the highest-caliber 10\" subwoofers on the market — 600 watts RMS continuous, a DMA-optimized motor derived from the W7AE flagship platform, a mineral-filled polypropylene cone with rubber surround, and a satin black cast-alloy frame that resists flex under real power. JL Audio designed the W6v3 to deliver flagship-caliber sound quality performance in compact sealed volumes, and JL specifies exactly 0.55 cubic feet net for the 10W6v3's optimum sealed alignment.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 10 for JL Audio W6 is engineered to hit that target precisely. 0.63 cubic feet gross internal volume minus the 10W6v3's driver displacement equals exactly 0.55 cubic feet net — the volume JL's engineers spec'd the W6v3 around, delivering the published F3 of 42.27 Hz and Qtc of 0.81. This isn't a \"close enough\" cabinet. It's JL's number, in a trunk-friendly wedge geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e0.63 cubic feet gross = 0.55 cubic feet net after the 10W6v3's driver displacement. Exactly matches JL Audio's published optimum sealed volume for the 10W6v3 (Qtc 0.81, F3 42.27 Hz). The wedge geometry mounts the woofer on the vertical trunk-lid-side face, firing rearward into the trunk cavity.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (8.85\" at the top, 13.25\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The wedge fills the trunk shelf area behind the seat cleanly.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (15\" wide × 12.25\" tall) is where the 10W6v3 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. This is the classic SQ trunk-load install pattern.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less localized presentation than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePreserves Trunk Cargo Space\u003c\/h4\u003e\n        \u003cp\u003eThe wedge tucks against the seat back where cargo can't be stored anyway. The bottom face sits flat and stable on the trunk floor. Cargo space in front of the wedge (toward the trunk lid) stays usable for daily driving.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to JL Audio's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eJL Audio publishes exactly one recommended sealed volume for the 10W6v3: 0.55 cubic feet net internal. In that alignment the driver delivers F3 of 42.27 Hz, Qtc of 0.81, and Fc of 47.55 Hz — the response curve JL's engineers targeted when they designed the driver. The Performance Optimized Wedge Sealed 10 delivers 0.63 cubic feet gross internal, which after subtracting the 10W6v3's driver displacement lands at exactly 0.55 cubic feet net. Not approximately. Exactly.\u003c\/p\u003e\n    \u003ch3\u003eWhy JL's Specification Matters\u003c\/h3\u003e\n    \u003cp\u003eSome drivers are forgiving about enclosure volume. The 10W6v3 isn't one of them. JL engineered this driver with a specific Qtc target in mind, and volume changes shift Qtc noticeably. Below 0.55 cubic feet the driver overdamps and loses low-end weight. Above 0.55 the Qtc drops and midbass tightness softens. 0.55 net is where the driver sounds like the driver JL designed. This cabinet delivers exactly that.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the 10W6v3's exact mounting cutout specification. The 10W6v3's 6.89\" mounting depth plus the required 0.50\" pole vent clearance fits inside the cabinet — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from 8.85\" at the top to 13.25\" at the bottom, providing ample clearance for the driver's motor and cooling requirements. 8\/32 threaded inserts are pressed into the baffle backside for secure driver retention.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at the 600 watts RMS the 10W6v3 handles.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the volume target and the mating angles between the top and bottom edges — tolerances that manual fabrication can't reliably hold. Internal volume is verified on every unit to ensure the JL-spec 0.55 cubic foot net target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a JL Audio 10W6v3-D4 driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your 10W6v3? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the JL Audio 10W6v3 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 10W6v3 is a dual voice coil driver available in Dual 4-ohm configuration only. The pre-wired terminal cup accepts either wiring configuration via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003eWired in parallel, the 10W6v3 presents a 2-ohm load. Wired in series, it presents 8 ohms. The 10W6v3 is rated for 600 watts RMS continuous, with JL Audio recommending amplifier power in the 200 to 600 watt RMS range. Aim for a clean, well-regulated amplifier delivering 300 to 500 watts RMS at your chosen impedance for balanced output and long-term reliability.\u003c\/p\u003e\n    \u003cp\u003eImportant: JL Audio explicitly recommends against using this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance. Use your amplifier's active low-pass filter to set the sub's upper cutoff, typically between 80 and 100 Hz for musical accuracy.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eJL's Spec Volume, in a Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003eExactly 0.55 cubic feet net internal — JL Audio's published optimum sealed volume for the 10W6v3 — in a trunk-friendly wedge geometry that fires the driver rearward into the trunk cavity. Precise driver-specific engineering for the W6 you already chose.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44528206839897,"sku":"PO 10-S W W6","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO10-SWW6Front.png?v=1786844991"},{"product_id":"performance-optimized-wedge-sealed-10-enclosure-jl-audio-10w3v3","title":"Performance Optimized Wedge Sealed 10\" Enclosure | JL Audio 10W3v3","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | JL Audio 10W3v3\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 10\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the JL Audio W3v3\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e0.675 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e0.625 ft³ Net (JL Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e19.75\" × 12.5\" × 6.95\/11.5\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe JL Audio 10W3v3 in JL's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 10W3v3 is the workhorse of JL's 10-inch subwoofer lineup — 500 watts RMS continuous, a mineral-filled polypropylene cone, an NBR rubber surround, and JL's proprietary Dynamic Motor Analysis system engineered into the motor. This is the driver that strikes an outstanding balance between power handling, enclosure requirements, and excursion for medium-power daily-driver systems, available in Single 2-ohm (10W3v3-2) or Single 4-ohm (10W3v3-4) configurations to match your amplifier.\u003c\/p\u003e\n    \u003cp\u003eJL specifies exactly 0.625 cubic feet net internal volume as the optimum sealed enclosure for the 10W3v3. The Performance Optimized Wedge Sealed 10 for JL Audio W3 delivers 0.675 cubic feet gross internal, which after subtracting the 10W3v3's 0.049 cubic foot driver displacement lands at 0.626 cubic feet net — essentially exact match to JL's published sealed spec, delivering the target F3 of 46.9 Hz and Qtc of 0.818.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e0.675 cubic feet gross = 0.626 cubic feet net after the 10W3v3's 0.049 cubic foot driver displacement. Essentially exact match to JL Audio's published optimum sealed volume for the 10W3v3 (Qtc 0.818, F3 46.9 Hz). The wedge geometry mounts the woofer on the vertical trunk-lid-side face, firing rearward into the trunk cavity.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (6.95\" at the top, 11.5\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The wedge fills the trunk shelf area behind the seat cleanly.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (19.75\" wide × 12.5\" tall) is where the 10W3v3 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. This is the classic SQ trunk-load install pattern.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less localized presentation than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePreserves Trunk Cargo Space\u003c\/h4\u003e\n        \u003cp\u003eThe wedge tucks against the seat back where cargo can't be stored anyway. The bottom face sits flat and stable on the trunk floor. Cargo space in front of the wedge (toward the trunk lid) stays usable for daily driving.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to JL Audio's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eJL Audio publishes exactly one recommended sealed volume for the 10W3v3: 0.625 cubic feet net internal. In that alignment the driver delivers F3 of 46.9 Hz, Qtc of 0.818, and Fc of 52.9 Hz — the response curve JL's engineers targeted when they designed the driver. The Performance Optimized Wedge Sealed 10 delivers 0.675 cubic feet gross internal, which after subtracting the 10W3v3's 0.049 cubic foot displacement lands at 0.626 cubic feet net — right on JL's spec.\u003c\/p\u003e\n    \u003ch3\u003eWhat the JL Spec Delivers\u003c\/h3\u003e\n    \u003cp\u003eJL engineered the 10W3v3 for a Qtc of 0.818 in a 0.625 cubic foot sealed enclosure. That Qtc target sits slightly above the traditional \"flat\" 0.707 alignment, giving the driver a warm, impactful bass character that works well in daily-driven cars where cabin gain smooths out the response. Below 0.625 cubic feet the driver overdamps and midbass tightens up but low-end weight drops. Above 0.625 the Qtc drops toward 0.7 and the character shifts more neutral. 0.625 is where the driver sounds like the driver JL designed.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the 10W3v3's exact 9.0625\" cutout specification. The 10W3v3's 5.93\" mounting depth fits comfortably inside the cabinet — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from 6.95\" at the top to 11.5\" at the bottom, providing ample clearance for the driver's motor and cooling requirements. 8\/32 threaded inserts are pressed into the baffle backside for secure driver retention.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at the 500 watts RMS the 10W3v3 handles.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the volume target and the mating angles between the top and bottom edges — tolerances that manual fabrication can't reliably hold. Internal volume is verified on every unit to ensure the JL-spec 0.625 cubic foot net target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a JL Audio 10W3v3-2 (2-ohm) or 10W3v3-4 (4-ohm) driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your 10W3v3? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the JL Audio 10W3v3 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 10W3v3 is a single voice coil driver available in two impedance versions to match different amplifier configurations. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003eThe 10W3v3-2 (Single 2-ohm) presents a 2-ohm load directly to your amplifier. The 10W3v3-4 (Single 4-ohm) presents a 4-ohm load. Pick the impedance version that matches your amplifier's stable-load requirements — most modern class D monoblocks are stable at 2 ohms and deliver more power at that load, but 4-ohm operation is easier on both the amp and the driver for daily use.\u003c\/p\u003e\n    \u003cp\u003eThe 10W3v3 is rated for 500 watts RMS continuous, with JL Audio recommending amplifier power in the 150 to 500 watt RMS range. Aim for a clean, well-regulated amplifier delivering 250 to 400 watts RMS at your chosen impedance for balanced output and long-term reliability.\u003c\/p\u003e\n    \u003cp\u003eImportant: JL Audio explicitly recommends against using this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance. Use your amplifier's active low-pass filter to set the sub's upper cutoff, typically between 80 and 100 Hz for musical accuracy.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eJL's Spec Volume, in a Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003eRight on JL Audio's published optimum sealed volume for the 10W3v3 — 0.625 cubic feet net internal — in a trunk-friendly wedge geometry that fires the driver rearward into the trunk cavity. Precise driver-specific engineering for the W3 you already chose.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44528213688409,"sku":"PO 10-S W W3","price":259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO10-SWW3Front.png?v=1786844945"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-jl-audio-12w3v3","title":"Performance Optimized Wedge Sealed 12\" Enclosure | JL Audio 12W3v3","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | JL Audio 12W3v3\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 12\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the JL Audio W3v3\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.32 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e1.25 ft³ Net (JL 2Ω Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e23.75\" × 14.5\" × 8.25\/13.5\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe JL Audio 12W3v3 in JL's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 12W3v3 is JL's medium-power 12\" workhorse — 500 watts RMS continuous, 87.15 dB sensitivity, a DMA-optimized motor, a mineral-filled polypropylene cone, and an NBR rubber surround engineered for long service life. Available in Single 2-ohm (12W3v3-2), Single 4-ohm (12W3v3-4), and Single 8-ohm (12W3v3-8) configurations to match your amplifier, this driver delivers world-class sound quality in a compact sealed cabinet that fits real trunks.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 12 for JL Audio W3 is engineered to hit JL's exact 12W3v3-2 sealed specification. 1.32 cubic feet gross internal volume minus the 12W3v3's 0.071 cubic foot driver displacement equals 1.249 cubic feet net — matching JL's published 1.250 cubic foot sealed spec for the 2-ohm variant. In that alignment, the driver delivers F3 of 41.8 Hz and Qtc of 0.96 — a warm, impactful bass character that plays beautifully in a daily-driver system.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e1.32 cubic feet gross = 1.249 cubic feet net after the 12W3v3's 0.071 cubic foot driver displacement. Exact match to JL Audio's published sealed spec for the 12W3v3-2 (Qtc 0.96, F3 41.8 Hz). The 12W3v3-4 and -8 variants also fit this cabinet with slightly relaxed alignments. The wedge geometry mounts the woofer on the vertical trunk-lid-side face, firing rearward into the trunk cavity.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (8.25\" at the top, 13.5\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The wedge fills the trunk shelf area behind the seat cleanly.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (23.75\" wide × 14.5\" tall) is where the 12W3v3 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. This is the classic SQ trunk-load install pattern.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less localized presentation than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePreserves Trunk Cargo Space\u003c\/h4\u003e\n        \u003cp\u003eThe wedge tucks against the seat back where cargo can't be stored anyway. The bottom face sits flat and stable on the trunk floor. Cargo space in front of the wedge (toward the trunk lid) stays usable for daily driving.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to JL Audio's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eJL Audio publishes different sealed enclosure specs for each impedance variant of the 12W3v3. The 12W3v3-2 wants 1.250 cubic feet net for its optimum sealed alignment (F3 41.8 Hz, Qtc 0.96). The 12W3v3-4 wants 1.125 cubic feet net. The 12W3v3-8 uses similar sealed sizing to the -2. This cabinet is engineered specifically to hit the 12W3v3-2's spec exactly: 1.32 cubic feet gross minus the 0.071 cubic foot driver displacement equals 1.249 cubic feet net — essentially exact match to JL's 1.250 spec for the 2-ohm variant.\u003c\/p\u003e\n    \u003ch3\u003eWhat the JL 2Ω Spec Delivers\u003c\/h3\u003e\n    \u003cp\u003eJL engineered the 12W3v3-2 for a Qtc of 0.96 in a 1.25 cubic foot sealed enclosure. That's a higher Qtc than the traditional \"flat\" 0.707 alignment, giving the driver a warm, impactful, midbass-forward bass character that works exceptionally well in daily-driven cars where cabin gain fills in the low end. If you want a subwoofer that sounds punchy and full without needing to run high volume levels to feel it, this alignment is perfect. Listeners looking for a flatter, more analytical alignment can use the 12W3v3-4 in this cabinet instead — the -4 in a slightly-larger-than-spec 1.249 volume trends toward Qtc 0.83, still on the warm side but flatter than the -2.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the 12W3v3's exact 11.0625\" cutout specification. The 12W3v3's 6.65\" mounting depth fits comfortably inside the cabinet — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from 8.25\" at the top to 13.5\" at the bottom, providing ample clearance for the driver's motor and cooling requirements. 8\/32 threaded inserts are pressed into the baffle backside for secure driver retention.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at the 500 watts RMS the 12W3v3 handles.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the volume target and the mating angles between the top and bottom edges — tolerances that manual fabrication can't reliably hold. Internal volume is verified on every unit to ensure the JL-spec 1.25 cubic foot net target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a JL Audio 12W3v3-2 (2-ohm) or 12W3v3-4 (4-ohm) driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. This cabinet is optimized for the 2-ohm variant's spec. Already own your 12W3v3? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the JL Audio 12W3v3 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 12W3v3 is a single voice coil driver available in three impedance versions. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003eThe 12W3v3-2 (Single 2-ohm) presents a 2-ohm load directly to your amplifier — the most common choice, delivering the highest power output from most modern class D monoblocks. The 12W3v3-4 (Single 4-ohm) presents a 4-ohm load — easier on both amp and driver for daily use. The 12W3v3-8 (Single 8-ohm) presents an 8-ohm load — rare, used mainly when running high-voltage amp bridges or matched with class AB amplifiers.\u003c\/p\u003e\n    \u003cp\u003eThe 12W3v3 is rated for 500 watts RMS continuous, with JL Audio recommending amplifier power in the 150 to 500 watt RMS range. Aim for a clean, well-regulated amplifier delivering 300 to 500 watts RMS at your chosen impedance for balanced output and long-term reliability.\u003c\/p\u003e\n    \u003cp\u003eImportant: JL Audio explicitly recommends against using this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance. Use your amplifier's active low-pass filter to set the sub's upper cutoff, typically between 80 and 100 Hz for musical accuracy.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eJL's Spec Volume, in a Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003e1.25 cubic feet net internal — JL Audio's published optimum sealed volume for the 12W3v3-2 — in a trunk-friendly wedge geometry that fires the driver rearward into the trunk cavity. Precise driver-specific engineering for the W3 you already chose.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44528229580889,"sku":"PO 12-S W W3","price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO12-SWW3Front.png?v=1786844895"},{"product_id":"performance-optimized-wedge-sealed-13-enclosure-jl-audio-13w3v3-1","title":"Performance Optimized Wedge Sealed 13\" Enclosure | JL Audio 13W3v3","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | JL Audio 13W3v3\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 13.5\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the JL Audio W3v3\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.85 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e1.75 ft³ Net (JL 2Ω Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e24\" × 16\" × 10.35\/16.2\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe JL Audio 13W3v3 in JL's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 13W3v3 is JL's oversized 13.5\" driver — a 600 watt RMS workhorse that moves 54% more air than the 12W3v3, delivering deeper extension and higher output at the same amplifier power level. Available in Single 2-ohm (13W3v3-2), Single 4-ohm (13W3v3-4), and Single 8-ohm (13W3v3-8) configurations, this driver uses JL's DMA-optimized motor, a mineral-filled polypropylene cone, and JL's NBR rubber surround with Floating Cone Attach Method for long-term reliability under sustained daily use.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 13 for JL Audio W3 is engineered to hit JL's exact 13W3v3-2 sealed specification. 1.85 cubic feet gross internal volume minus the 13W3v3's 0.096 cubic foot driver displacement equals 1.754 cubic feet net — matching JL's published 1.750 cubic foot sealed spec for both the 2-ohm and 8-ohm variants. In that alignment, the driver delivers F3 of 37.7 Hz and Qtc of 0.96 — deep, warm, high-impact bass in a trunk-friendly wedge cabinet.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e1.85 cubic feet gross = 1.754 cubic feet net after the 13W3v3's 0.096 cubic foot driver displacement. Exact match to JL Audio's published sealed spec for the 13W3v3-2 and 13W3v3-8 (Qtc 0.96, F3 37.7 Hz). The 13W3v3-4 variant also fits this cabinet, running slightly larger than its 1.5 cu ft spec for a Qtc around 0.82. The wedge geometry mounts the woofer on the vertical trunk-lid-side face, firing rearward into the trunk cavity.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (10.35\" at the top, 16.2\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The wedge fills the trunk shelf area behind the seat cleanly.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (24\" wide × 16\" tall) is where the 13W3v3 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. This is the classic SQ trunk-load install pattern.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less localized presentation than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePreserves Trunk Cargo Space\u003c\/h4\u003e\n        \u003cp\u003eThe wedge tucks against the seat back where cargo can't be stored anyway. The bottom face sits flat and stable on the trunk floor. Cargo space in front of the wedge (toward the trunk lid) stays usable for daily driving.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to JL Audio's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eJL Audio publishes different sealed enclosure specs for each impedance variant of the 13W3v3. The 13W3v3-2 wants 1.750 cubic feet net (F3 37.7 Hz, Qtc 0.96). The 13W3v3-4 wants 1.500 cubic feet net (F3 40.4 Hz, Qtc 0.89). The 13W3v3-8 wants 1.750 cubic feet net (F3 37.2 Hz, Qtc 0.96). This cabinet is engineered specifically to hit the 1.75 cu ft target used by both the 2-ohm and 8-ohm variants: 1.85 cubic feet gross minus the 0.096 cubic foot driver displacement equals 1.754 cubic feet net — essentially exact match.\u003c\/p\u003e\n    \u003ch3\u003eWhat the JL 2Ω Spec Delivers\u003c\/h3\u003e\n    \u003cp\u003eJL engineered the 13W3v3-2 for a Qtc of 0.96 in a 1.75 cubic foot sealed enclosure. That's a higher Qtc than the traditional \"flat\" 0.707 alignment, giving the driver a warm, impactful, midbass-forward bass character. Combined with the 13.5\" cone's deep F3 of 37.7 Hz, this alignment produces a bass presentation that reaches lower AND hits harder than the smaller W3v3 drivers can match — the reason to step up to the 13\" is precisely this combination of depth and impact from a single driver. Listeners looking for a flatter, more analytical alignment can use the 13W3v3-4 in this cabinet instead — the -4 in a slightly-larger-than-spec 1.754 volume trends toward Qtc 0.82, still warm but flatter than the -2 and -8.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the 13W3v3's exact 12.5625\" cutout specification. The 13W3v3's 7.63\" mounting depth fits inside the cabinet — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from 10.35\" at the top to 16.2\" at the bottom, providing ample clearance for the driver's motor and cooling requirements. 8\/32 threaded inserts are pressed into the baffle backside for secure driver retention. The 14\" outer diameter of the 13W3v3 sits within the 16\" tall baffle with adequate clearance for mounting flange.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Less panel resonance, tighter joints, and a longer service life under daily use at the 600 watts RMS the 13W3v3 handles.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the volume target and the mating angles between the top and bottom edges — tolerances that manual fabrication can't reliably hold. Internal volume is verified on every unit to ensure the JL-spec 1.75 cubic foot net target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a JL Audio 13W3v3-2 (2-ohm), 13W3v3-4 (4-ohm), or 13W3v3-8 (8-ohm) driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. This cabinet is optimized for the 2-ohm and 8-ohm variants' 1.75 cu ft spec. Already own your 13W3v3? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the JL Audio 13W3v3 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 13W3v3 is a single voice coil driver available in three impedance versions. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003eThe 13W3v3-2 (Single 2-ohm) presents a 2-ohm load directly to your amplifier — the most common choice, delivering the highest power output from most modern class D monoblocks stable at 2 ohms. The 13W3v3-4 (Single 4-ohm) presents a 4-ohm load — easier on both amp and driver for daily use. The 13W3v3-8 (Single 8-ohm) presents an 8-ohm load — used mainly with high-voltage amp bridges or matched with class AB amplifiers.\u003c\/p\u003e\n    \u003cp\u003eThe 13W3v3 is rated for 600 watts RMS continuous, with JL Audio recommending amplifier power in the 150 to 600 watt RMS range. Aim for a clean, well-regulated amplifier delivering 400 to 600 watts RMS at your chosen impedance for balanced output and long-term reliability. JL Audio's own RD or XD series 600\/1 monoblocks are natural matches.\u003c\/p\u003e\n    \u003cp\u003eImportant: JL Audio explicitly recommends against using this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance. Use your amplifier's active low-pass filter to set the sub's upper cutoff, typically between 80 and 100 Hz for musical accuracy.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eJL's Spec Volume for the 13, in a Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003e1.75 cubic feet net internal — JL Audio's published optimum sealed volume for the 13W3v3-2 and 13W3v3-8 — in a trunk-friendly wedge geometry that fires the 13.5\" cone rearward into the trunk cavity. Deep extension, high impact, precise driver-specific engineering.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44528233381977,"sku":"PO 13-S W W3","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO13-SWW3Front.png?v=1786844860"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-jl-audio-12tw3-d4","title":"Performance Optimized Wedge Sealed 12\" Enclosure | JL Audio 12TW3-D4","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | JL Audio 12TW3\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 12\" Shallow-Mount Sealed Wedge | Rear-Firing Trunk-Load for JL's Thin-Line 12TW3-D4\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e0.83 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e0.80 ft³ Net (JL Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eUltra-Shallow Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e28.25\" × 14.5\" × 4.5\/9.89\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe JL Audio 12TW3-D4 in JL's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 12TW3-D4 is JL's shallow-mount 12\" thin-line subwoofer, engineered around JL's patented concentric tube cone architecture to deliver full-size 12\" cone area from a driver that measures just 3.5\" mounting depth. This isn't a compromise driver — the TW3's engineering actually enables greater excursion than the standard W3v3, using a compressed motor structure placed forward inside the cone body itself. 400 watts RMS continuous with a mica-filled polypropylene cone, rubber surround, cast alloy basket, and JL's tab-ear mounting design for maximum cone area within its footprint.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 12 for JL Audio TW3 is engineered to hit JL's exact published sealed specification. 0.83 cubic feet gross internal volume minus the 12TW3-D4's 0.029 cubic foot driver displacement equals 0.801 cubic feet net — essentially exact match to JL's 0.80 cubic foot published sealed spec, delivering deep, controlled bass response tuned by JL's own engineers.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e0.83 cubic feet gross = 0.801 cubic feet net after the 12TW3-D4's 0.029 cubic foot driver displacement. Essentially exact match to JL Audio's published optimum sealed volume for the 12TW3-D4. The ultra-shallow wedge geometry — just 4.5\" deep at the top rising to 9.89\" at the bottom — is engineered around the TW3's 3.5\" mounting depth, mounting the driver on the vertical trunk-lid-side face and firing rearward into the trunk cavity.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy the TW3 Exists (and Why This Wedge Fits Where Others Can't)\u003c\/h2\u003e\n    \u003cp\u003eThe JL 12TW3-D4 was engineered for one specific mission: full-size 12\" bass in vehicles and configurations where a standard 12\" enclosure simply won't fit. Pickup trucks with cramped extended cabs. Sports cars with shallow parcel-shelf areas. Sedans with low decklid clearance. Vans and SUVs where cargo floor height is critical. Anywhere the front-to-back depth needed for a regular 12\" is unavailable.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 12 for JL Audio TW3 solves the same problem in wedge form. The vertical trunk-lid-side face where the woofer mounts is only 4.5\" deep at the top of the box, tapering to 9.89\" at the bottom. That means the top of the cabinet fits under low parcel shelves and rear seat backs that a full-depth wedge could never clear. Combined with the TW3's own 3.5\" mounting depth, this is one of the most vehicle-friendly full-size 12\" enclosures available.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (4.5\" at top, 9.89\" at bottom) matches that lean, tucking against the seat back with no wasted gap. The ultra-shallow top face slides under decklids and parcel shelves that block deeper cabinets.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (28.25\" wide × 14.5\" tall) is where the 12TW3-D4 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber — the classic SQ trunk-load install pattern, now available in shallow-mount format.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — smoother than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eWide, Shallow Footprint\u003c\/h4\u003e\n        \u003cp\u003e28.25\" wide by 14.5\" tall by 4.5-9.89\" deep. Substantially wider than a standard 12\" cabinet but far shallower. Ideal for the space behind rear seat backs in trucks, under parcel shelves in sedans and coupes, and low-profile SUV cargo installations where depth is the limiting factor.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to JL Audio's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eJL Audio publishes exactly one recommended sealed enclosure volume for the 12TW3-D4: 0.80 cubic feet net internal. This spec is JL's own engineered target for the driver — the volume where the TW3's motor, suspension, and cone assembly deliver the balanced sealed response their engineers designed the driver for. The Performance Optimized Wedge Sealed 12 delivers 0.83 cubic feet gross internal, which after subtracting the 12TW3-D4's 0.029 cubic foot displacement lands at 0.801 cubic feet net — right on JL's published spec.\u003c\/p\u003e\n    \u003ch3\u003eWhat the JL Spec Delivers\u003c\/h3\u003e\n    \u003cp\u003eThe 12TW3-D4 in its JL-spec 0.80 cu ft sealed alignment delivers deep, controlled, musically accurate bass with excellent transient response — the character JL's engineers targeted. Because the TW3 was engineered from the ground up to work in small enclosures, this isn't a case of a driver being crammed into an undersized box for space reasons. The 0.80 cu ft target is where the driver sounds its best, not just where it fits.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry and Driver Fitment\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the 12TW3-D4's exact 11.625\" cutout specification. The 12TW3-D4's 3.5\" mounting depth fits inside the cabinet with clearance to spare — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from ~3.75\" at the top to ~9.14\" at the bottom (after accounting for 3\/4\" MDF panel thickness), with the driver's mounting position at cabinet center providing over 5\" of clearance behind the motor. JL's no-pole-vent motor design permits mounting close to the rear wall of an enclosure — critical for shallow-cabinet applications like this one.\u003c\/p\u003e\n    \u003ch3\u003eTab-Ear Mounting\u003c\/h3\u003e\n    \u003cp\u003eThe TW3 uses JL's tab-ear mounting design — three plastic mounting ears extending outward from the driver frame, rather than a continuous perimeter flange. This maximizes cone area within the mounting footprint but requires specific mounting hardware: use #8 or #10 pan-head screws (NOT tapered\/countersunk), since countersunk screws can wedge the plastic ears outward under vibration and crack them over time. The Proline X wedge baffle is pre-drilled and threaded-insert equipped for the TW3's tab pattern with pan-head hardware included.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Especially important in a shallow cabinet where panel-to-air ratio is high — panel resonance would color the sound more than in a deeper box, and Langboard's density minimizes that risk.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the ultra-shallow angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTW3-Specific Baffle Machining\u003c\/h4\u003e\n        \u003cp\u003eThe 11.625\" cutout is CNC-machined with the tab-ear mounting positions pre-drilled and 8\/32 threaded inserts pressed into the baffle backside. #8 pan-head stainless steel screws included — not countersunk, per JL's mounting requirements for the tab-ear design.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The shallow wedge geometry requires precise CNC compound cuts — the 4.5\" top-face-to-9.89\" bottom-face depth transition over 14.5\" of height must be dimensionally perfect to hit both the volume target and the seat-side mating angles. Internal volume is verified on every unit to ensure the JL-spec 0.80 cubic foot net target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a JL Audio 12TW3-D4 driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Note that the TW3 series is offered by JL Audio in only one impedance version — Dual 4-ohm. Already own your 12TW3-D4? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the JL Audio 12TW3-D4 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 12TW3-D4 is a dual-voice-coil driver with both coils at 4 ohms. This gives you two standard wiring options via the pre-wired terminal cup.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eParallel wiring (2 ohm total load):\u003c\/strong\u003e Both voice coils in parallel presents a 2-ohm load to your amplifier — the higher-output configuration, ideal for modern class D monoblocks stable at 2 ohms. Recommended for maximizing SPL and power transfer from typical 300-500 watt monoblock amps.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eSeries wiring (8 ohm total load):\u003c\/strong\u003e Both voice coils in series presents an 8-ohm load — used mainly with bridged high-voltage amp configurations, class AB amplifiers, or multi-driver installs where impedance summing matters.\u003c\/p\u003e\n    \u003cp\u003eThe 12TW3-D4 is rated for 400 watts RMS continuous with a 100-400 watt RMS recommended amplifier range. Aim for a well-regulated monoblock delivering 300-400 watts RMS at your chosen impedance for the best combination of headroom, output, and long-term reliability. Set your amplifier's active low-pass filter between 80 and 100 Hz for musical accuracy.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eJL's Spec Volume for the Shallow 12, in a Wedge That Actually Fits\u003c\/h2\u003e\n    \u003cp\u003e0.80 cubic feet net internal — JL Audio's published optimum sealed volume for the 12TW3-D4 — in an ultra-shallow wedge geometry (4.5\" at the top) engineered around the TW3's 3.5\" mounting depth. Full-size 12\" cone area, real JL Audio bass, in vehicles where a standard 12\" enclosure simply won't fit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44528237609049,"sku":"PO 12-S W TW3","price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO12-SWTW3Front.png?v=1786844642"},{"product_id":"performance-optimized-wedge-sealed-10-enclosure-jl-audio-10tw3-d4","title":"Performance Optimized Wedge Sealed 10\" Enclosure | JL Audio 10TW3-D4","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | JL Audio 10TW3\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 10\" Shallow-Mount Sealed Wedge | Rear-Firing Trunk-Load for JL's Thin-Line 10TW3-D4\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e0.52 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e0.50 ft³ Net (JL Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eUltra-Shallow Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e23\" × 13\" × 4.5\/9.25\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe JL Audio 10TW3-D4 in JL's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 10TW3-D4 is JL's shallow-mount 10\" thin-line subwoofer — 10 inches of cone area with just 3.25\" of mounting depth, and 15.2mm of one-way linear excursion (more than the standard W3v3 despite the shallow packaging). JL's patented concentric tube cone architecture places the motor structure forward inside the injection-molded cone body, letting this driver deliver full-size 10\" bass in enclosures that a conventional 10\" driver couldn't fit. 400 watts RMS continuous with a mica-injected polypropylene cone, rubber surround, cast alloy basket, and JL's tab-ear mounting design.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 10 for JL Audio TW3 is engineered to hit JL's exact published sealed specification. 0.52 cubic feet gross internal volume minus the 10TW3-D4's driver displacement lands at 0.50 cubic feet net — exact match to JL's published 0.50 cubic foot sealed spec, delivering the Qtc 0.96 warm\/impactful alignment JL's engineers targeted for the TW3 series.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e0.52 cubic feet gross = 0.50 cubic feet net after the 10TW3-D4's driver displacement. Exact match to JL Audio's published optimum sealed volume for the 10TW3-D4 (Qtc 0.96, F3 just above 40 Hz). The ultra-shallow wedge geometry — 4.5\" deep at the top rising to 9.25\" at the bottom — is engineered around the TW3's 3.25\" mounting depth, mounting the driver on the vertical trunk-lid-side face and firing rearward into the trunk cavity.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy the TW3 Exists (and Why This Wedge Fits Where Others Can't)\u003c\/h2\u003e\n    \u003cp\u003eThe JL 10TW3-D4 was engineered for one specific mission: full-size 10\" bass in vehicles and configurations where a standard 10\" enclosure won't fit. Extended-cab and crew-cab pickup trucks (where the driver commonly mounts under a rear seat that lifts up). Sports cars with shallow parcel-shelf areas. Sedans with low decklid clearance. SUVs where cargo floor height is critical. The 10TW3-D4 has been the reference under-seat subwoofer for years because of two specific numbers: 3.25\" mounting depth and 15.2mm one-way Xmax. Most shallow 10s give you one or the other. JL delivers both.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 10 for JL Audio TW3 solves the same space problem in trunk-load wedge form. The vertical trunk-lid-side face is only 4.5\" deep at the top, tapering to 9.25\" at the bottom — meaning the top of the cabinet slides under low parcel shelves and rear seat backs that a full-depth wedge could never clear. Combined with the TW3's own shallow mounting depth, this is one of the most vehicle-friendly full-size 10\" trunk-load enclosures available.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (4.5\" at top, 9.25\" at bottom) matches that lean, tucking against the seat back with no wasted gap. The ultra-shallow top face slides under decklids and parcel shelves that block deeper cabinets.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (23\" wide × 13\" tall) is where the 10TW3-D4 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber — the classic SQ trunk-load install pattern, now available in shallow-mount format.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — smoother than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eCompact, Shallow Footprint\u003c\/h4\u003e\n        \u003cp\u003e23\" wide by 13\" tall by 4.5-9.25\" deep. Smaller cabinet than the 12\" TW3 wedge for tighter trunk installs, low-clearance SUV cargo floors, and coupe trunks where a 12\" simply won't fit. Same shallow top-face design principle — the 4.5\" top depth threads under obstructions that block conventional wedges.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to JL Audio's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eJL Audio publishes 0.50 cubic feet net internal as the recommended sealed enclosure for the 10TW3-D4. This is JL's own engineered target — the volume where the TW3's motor, suspension, and cone assembly deliver the sealed response their engineers designed the driver for. The Performance Optimized Wedge Sealed 10 delivers 0.52 cubic feet gross internal, which after subtracting the 10TW3-D4's driver displacement lands right at the 0.50 cubic foot JL spec.\u003c\/p\u003e\n    \u003ch3\u003eWhat the JL Spec Delivers\u003c\/h3\u003e\n    \u003cp\u003eThe 10TW3-D4 in its JL-spec 0.50 cu ft sealed alignment delivers a Qtc of approximately 0.96 with F3 just above 40 Hz — a slightly warm alignment with good upper-bass presence, ideal for daily-driven vehicles where cabin gain smooths out the low end. This is a musical, punchy character rather than a strictly flat one, which suits the typical use case for a shallow-mount driver in a truck, sports car, or compact vehicle. If you have room for a slightly larger enclosure (0.75 cu ft), the alignment flattens out to Qtc 0.86 — but that's not this cabinet. This cabinet delivers exactly what JL specifies as optimum.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry and Driver Fitment\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the 10TW3-D4's exact 9.625\" cutout specification. The 10TW3-D4's 3.25\" mounting depth fits inside the cabinet with clearance — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from approximately 3.75\" at the top edge to 8.5\" at the bottom (after 3\/4\" MDF panel thickness), with the driver's mounting position at cabinet center providing well over 5\" of clearance behind the motor. JL's no-pole-vent motor design permits mounting close to the rear wall of an enclosure — the driver requires only 0.25\" of rear clearance to breathe.\u003c\/p\u003e\n    \u003ch3\u003eTab-Ear Mounting\u003c\/h3\u003e\n    \u003cp\u003eThe TW3 uses JL's tab-ear mounting design — plastic mounting ears extending outward from the driver frame, rather than a continuous perimeter flange. This maximizes cone area within the mounting footprint but requires specific mounting hardware: use #8 or #10 pan-head screws (NOT tapered\/countersunk), since countersunk screws can wedge the plastic ears outward under vibration and crack them over time. The Proline X wedge baffle is pre-drilled and threaded-insert equipped for the TW3's tab pattern with pan-head hardware included.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Especially important in a shallow cabinet where panel-to-air ratio is high — panel resonance would color the sound more than in a deeper box, and Langboard's density minimizes that risk.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the ultra-shallow angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTW3-Specific Baffle Machining\u003c\/h4\u003e\n        \u003cp\u003eThe 9.625\" cutout is CNC-machined with the tab-ear mounting positions pre-drilled and 8\/32 threaded inserts pressed into the baffle backside. #8 pan-head stainless steel screws included — not countersunk, per JL's mounting requirements for the tab-ear design.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The shallow wedge geometry requires precise CNC compound cuts — the 4.5\" top-face-to-9.25\" bottom-face depth transition over 13\" of height must be dimensionally perfect to hit both the JL-spec volume target and the correct 20-degree seat-side mating angle. Internal volume is verified on every unit to ensure the JL-spec 0.50 cubic foot net target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a JL Audio 10TW3-D4 (Dual 4-ohm) or 10TW3-D8 (Dual 8-ohm) driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Most single-driver installs use the D4 wired parallel for a 2-ohm load. Already own your 10TW3? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the JL Audio 10TW3-D4 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 10TW3-D4 is a dual-voice-coil driver with both coils at 4 ohms. This gives you two standard wiring options via the pre-wired terminal cup.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eParallel wiring (2 ohm total load):\u003c\/strong\u003e Both voice coils in parallel presents a 2-ohm load to your amplifier — the higher-output configuration, ideal for modern class D monoblocks stable at 2 ohms. Recommended for maximizing SPL and power transfer from typical 300-400 watt monoblock amps. This is the standard wiring for single-driver installs.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eSeries wiring (8 ohm total load):\u003c\/strong\u003e Both voice coils in series presents an 8-ohm load — used mainly with bridged high-voltage amp configurations, class AB amplifiers, or multi-driver installs where impedance summing matters.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eAlternative driver: 10TW3-D8.\u003c\/strong\u003e If you're building a multi-driver system, JL Audio also offers the 10TW3-D8 (Dual 8-ohm) variant, which pairs better in dual-driver configurations at 2 ohms total (each driver wired parallel to 4 ohms, then two drivers wired parallel to 2 ohms). Either D4 or D8 variant fits this cabinet identically.\u003c\/p\u003e\n    \u003cp\u003eThe 10TW3-D4 is rated for 400 watts RMS continuous with a 100-400 watt RMS recommended amplifier range. Aim for a well-regulated monoblock delivering 300-400 watts RMS at your chosen impedance for the best combination of headroom, output, and long-term reliability. Set your amplifier's active low-pass filter between 80 and 100 Hz for musical accuracy.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eJL's Spec Volume for the Shallow 10, in a Wedge That Actually Fits\u003c\/h2\u003e\n    \u003cp\u003e0.50 cubic feet net internal — JL Audio's published optimum sealed volume for the 10TW3-D4 — in an ultra-shallow wedge geometry (4.5\" at the top) engineered around the TW3's 3.25\" mounting depth. Full-size 10\" cone area with 15.2mm Xmax, real JL Audio bass, in vehicles where a standard 10\" enclosure simply won't fit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44528245964889,"sku":"PO 10-S W TW3","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO10-SWTW3Front.png?v=1786844823"},{"product_id":"performance-optimized-wedge-sealed-13-enclosure-jl-audio-13tw5v2","title":"Performance Optimized Wedge Sealed 13\" Enclosure | JL Audio 13TW5v2","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | JL Audio 13TW5v2\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 13.5\" Premium Shallow-Mount Sealed Wedge | Rear-Firing Trunk-Load for JL's Flagship Thin-Line\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e0.852 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e0.80 ft³ Net (JL Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eUltra-Shallow Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e28.34\" × 15.9\" × 4.12\/9.89\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe JL Audio 13TW5v2 in JL's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 13TW5v2 is JL's flagship thin-line subwoofer — a 13.5-inch cone driven by a massive 7-inch voice coil, packaged in a 2.625\" mounting depth footprint. Built around JL's patented concentric tube suspension with a Santoprene surround (a step up from the TW3's rubber surround), a mica-injected polypropylene cone, and JL's Dynamic Motor Analysis-optimized motor structure, this driver represents the current state of the art in shallow-mount subwoofer engineering. 600 watts RMS continuous, 11mm one-way Xmax, and enclosure requirements that fit where conventional 12s and 13s cannot.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 13 for JL Audio TW5 is engineered to hit JL's exact published sealed specification. 0.852 cubic feet gross internal volume minus the 13TW5v2's 0.052 cubic foot driver displacement equals 0.800 cubic feet net — exact match to JL's 0.80 cubic foot published sealed spec, delivering the alignment JL's engineers targeted for this flagship driver.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e0.852 cubic feet gross = 0.800 cubic feet net after the 13TW5v2's 0.052 cubic foot driver displacement. Exact match to JL Audio's published optimum sealed volume for the 13TW5v2. The ultra-shallow wedge geometry — 4.12\" deep at the top rising to 9.89\" at the bottom — is engineered around the TW5's 2.625\" mounting depth, mounting the driver on the vertical trunk-lid-side face and firing rearward into the trunk cavity.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy the TW5v2 Exists (Full-Size 13.5\" Bass in a 2.625\" Footprint)\u003c\/h2\u003e\n    \u003cp\u003eThe 13TW5v2 was engineered around a single premise: what if you could get flagship 13.5\" subwoofer performance in a mounting depth that fits under a truck seat, behind a sports car parcel shelf, or in the tight cargo bay of a compact SUV? JL's answer is the concentric tube suspension system — a patented architecture that supports a 7-inch voice coil and delivers 11mm of one-way Xmax while collapsing the entire driver profile to just 2.625\" of mounting depth.\u003c\/p\u003e\n    \u003cp\u003eThe result is a driver that sits in JL's lineup between the standard W3v3 and W6v3 in market position, but occupies its own unique category in cabinet requirements. JL specifies exactly 0.80 cubic feet net internal for the sealed alignment — smaller than what a standard 12\" W6v3 requires (1.0 cu ft), let alone what a standard 13\" W3v3 wants (1.5-1.75 cu ft depending on impedance). And the mounting depth is less than half the 7.63\" that the standard 13W3v3 requires. This is a driver that lets you install a real 13.5\" cone in vehicles where a 13W3v3 or 13W6v3 simply cannot fit.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (4.12\" at top, 9.89\" at bottom) matches that lean, tucking against the seat back with no wasted gap. The ultra-shallow 4.12\" top face slides under decklids and parcel shelves that block deeper cabinets.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (28.34\" wide × 15.9\" tall) is where the 13TW5v2 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber — the classic SQ trunk-load install pattern, now in shallow-mount 13.5\" format.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — smoother than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e13.5\" Cone, Slim Cabinet\u003c\/h4\u003e\n        \u003cp\u003e28.34\" wide by 15.9\" tall by 4.12-9.89\" deep. Substantially smaller in every dimension than a full-depth 13W3v3 enclosure. The 4.12\" top depth is the standout number — this cabinet's top edge fits under obstructions that no full-depth 13\" wedge could clear.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to JL Audio's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eJL Audio publishes exactly one recommended sealed enclosure volume for the 13TW5v2: 0.80 cubic feet net internal. This spec is JL's own engineered target for the driver — the volume where the TW5's concentric tube suspension, motor structure, and cone assembly deliver the balanced response their engineers designed the driver for. The Performance Optimized Wedge Sealed 13 delivers 0.852 cubic feet gross internal, which after subtracting the 13TW5v2's 0.052 cubic foot displacement lands exactly at the 0.80 cubic foot JL spec.\u003c\/p\u003e\n    \u003ch3\u003eSealed Only (Never Ported)\u003c\/h3\u003e\n    \u003cp\u003eJL Audio specifically optimizes the 13TW5v2 for sealed enclosures only. Ported operation significantly increases the risk of cone unloading (over-excursion below the port tuning frequency), which can permanently damage the unique concentric tube suspension system. This cabinet is engineered for exactly that reason — a sealed alignment at JL's exact spec, with no venting, no port tuning to worry about, and no risk of suspension damage from unloading.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry and Driver Fitment\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the 13TW5v2's exact 12.5\" cutout specification. The 13TW5v2's 2.625\" mounting depth fits inside the cabinet with clearance — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from approximately 3.37\" at the top edge to 9.14\" at the bottom (after 3\/4\" MDF panel thickness), with the driver's mounting position at cabinet center providing over 5.6\" of clearance behind the motor. The 14.2\" overall driver diameter fits within the 15.9\" tall baffle with room for the mounting flange, and the 13.5\" bolt hole circle is pre-drilled with 8\/32 threaded inserts.\u003c\/p\u003e\n    \u003ch3\u003eDamping and Cabinet Considerations\u003c\/h3\u003e\n    \u003cp\u003eThe 13TW5v2 is highly air-displacement sensitive due to its concentric tube suspension. Over-damping with excessive polyfill can restrict cone motion and choke the low end. The Performance Optimized Wedge Sealed 13 uses a light polyfill layer on the interior side walls only — no packing around the driver, no over-stuffed cabinets. Just enough damping to control internal reflections without impeding the suspension's freedom to move.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Premium Driver Tuning\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Critical in a shallow cabinet housing a 600W RMS driver: panel resonance would color the sound and MDF creep would allow air leaks over time. Langboard's density and stability address both.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the ultra-shallow angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eStandard Round Baffle Cutout\u003c\/h4\u003e\n        \u003cp\u003eUnlike the TW3's tab-ear mounting, the TW5v2 uses a standard perimeter mounting flange with 13.5\" bolt circle. The 12.5\" cutout is CNC-machined with the bolt pattern pre-drilled and 8\/32 threaded inserts pressed into the baffle backside. Stainless steel machine screws included — installer's choice of pan-head or button-head cosmetically, both mechanically identical.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The shallow wedge geometry requires precise CNC compound cuts — the 4.12\" top-face-to-9.89\" bottom-face depth transition over 15.9\" of height must be dimensionally perfect to hit both the JL-spec 0.80 cu ft net target and the correct 20-degree seat-side mating angle. Internal volume is verified on every unit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eAdd a JL Audio 13TW5v2-2 (Single 2-ohm) or 13TW5v2-4 (Single 4-ohm) driver directly to your order and we'll ship the complete loaded system, ready to wire to your amplifier. Already own your 13TW5v2? Order the enclosure box-only and drop in the driver you have.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the JL Audio 13TW5v2 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe JL Audio 13TW5v2 is a single-voice-coil driver available in two impedance versions. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003e13TW5v2-2 (Single 2-ohm):\u003c\/strong\u003e Presents a 2-ohm load directly to your amplifier — the higher-output configuration, ideal for modern class D monoblocks stable at 2 ohms. Recommended for maximizing power transfer and SPL output. Most single-driver installs pair with a class D monoblock at 2 ohms delivering the TW5v2's rated 400-600 watts RMS.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003e13TW5v2-4 (Single 4-ohm):\u003c\/strong\u003e Presents a 4-ohm load — easier on both amp and driver, ideal for dual-driver installs (two 4-ohm drivers wired in parallel present a 2-ohm total load) or with amplifiers optimized for 4-ohm output.\u003c\/p\u003e\n    \u003cp\u003eThe 13TW5v2 is rated for 600 watts RMS continuous with a 250-600 watt RMS recommended amplifier range. Aim for a well-regulated monoblock delivering 400-600 watts RMS at your chosen impedance. Important: this driver benefits from a subsonic filter set around 25-30 Hz to prevent over-excursion below its Fs (27.6 Hz). Set your amplifier's active low-pass filter between 80 and 100 Hz for musical accuracy.\u003c\/p\u003e\n    \u003cp\u003eImportant: JL Audio explicitly recommends against using this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance. Active crossovers only.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eJL's Flagship 13.5\" Thin-Line, in a Trunk-Load Wedge That Fits\u003c\/h2\u003e\n    \u003cp\u003e0.80 cubic feet net internal — JL Audio's published optimum sealed volume for the 13TW5v2 — in an ultra-shallow wedge geometry (4.12\" at the top) engineered around the TW5's 2.625\" mounting depth. Full-size 13.5\" cone area, 600 watts RMS, premium Santoprene suspension, in vehicles where a standard 13\" enclosure simply won't fit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44528262578265,"sku":"PO 13-S W TW5","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-micro-series-dual-15-sealed-enclosure-built-for-resonix-gus-15subwoofer-enclosuresproline-x-9360178.webp?v=1779355146"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-rockford-fosgate-t1d212","title":"Performance Optimized Wedge Sealed 12\" Enclosure | Rockford Fosgate T1D212","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Rockford Fosgate T1D212\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 12\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the Rockford Fosgate T1 Power Series\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.55 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e1.25 ft³ Net (RF Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e24.4\" × 15\" × 9.4\/14.85\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Rockford Fosgate T1D212 in RF's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate T1D212 is the current-generation Power T1 series 12-inch subwoofer, engineered around Rockford's patented VAST (Vertical Attach Surround Technique) technology that increases effective radiating cone area by up to 25% over conventional 12\" drivers. 800 watts RMS CEA-2031 compliant power handling, dual 2-ohm voice coils, 16mm one-way Xmax, a rigid die-cast aluminum FlexFit basket, Kevlar fiber reinforced paper cone, anodized aluminum voice coil former for superior heat dissipation, and Klippel-verified design tolerances. This is Rockford's flagship SPL-capable 12\" driver.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 12 for Rockford Fosgate T1 is engineered to hit RF's exact published sealed specification. 1.55 cubic feet gross internal volume minus the T1D212's 0.304 cubic foot total driver displacement lands at 1.246 cubic feet net — essentially exact match to Rockford's 1.25 cubic foot published sealed spec, delivering the alignment RF's engineers designed the T1D212 to operate in.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e1.55 cubic feet gross = 1.246 cubic feet net after the T1D212's 0.304 cubic foot total driver displacement. Essentially exact match to Rockford Fosgate's published 1.25 cubic foot sealed spec for the T1D212. The wedge geometry mounts the woofer on the vertical trunk-lid-side face, firing rearward into the trunk cavity — classic SQ trunk-load pattern applied to Rockford's SPL-capable T1 platform.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (9.4\" at the top, 14.85\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The wedge fills the trunk shelf area behind the seat cleanly.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (24.4\" wide × 15\" tall) is where the T1D212 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. This is the classic SQ trunk-load install pattern applied to Rockford's SPL-oriented T1 series.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less-localized presentation than direct-firing setups, and particularly effective for a high-output driver like the T1D212 where cabin standing waves need control.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePreserves Trunk Cargo Space\u003c\/h4\u003e\n        \u003cp\u003eThe wedge tucks against the seat back where cargo can't be stored anyway. The bottom face sits flat and stable on the trunk floor. Cargo space in front of the wedge (toward the trunk lid) stays usable for daily driving.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to Rockford Fosgate's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eRockford Fosgate publishes exactly 1.25 cubic feet net internal as the recommended sealed enclosure volume for the T1D212. This spec is RF's own engineered target — the volume where the T1's motor structure, VAST-enhanced cone assembly, and progressive-roll spider suspension deliver the sealed response their Klippel-verified design targets. The Performance Optimized Wedge Sealed 12 delivers 1.55 cubic feet gross internal, which after subtracting the T1D212's total driver displacement of 0.304 cubic feet lands at 1.246 cubic feet net — right on RF's published spec.\u003c\/p\u003e\n    \u003ch3\u003eSealed vs. Ported for the T1D212\u003c\/h3\u003e\n    \u003cp\u003eThe T1D212 is a versatile driver that Rockford supports both sealed (1.25 cu ft) and vented (1.75 cu ft) applications for. Sealed operation delivers the tightest, most controlled bass response — ideal for musical accuracy, sound quality installs, and daily-driven vehicles where cabin gain rewards a slightly warmer alignment. If you're building a maximum-SPL system or want the peak-tuned resonance boost of a ported enclosure, RF's 1.75 cu ft vented spec is worth considering as a separate build. This cabinet is engineered specifically for RF's sealed alignment — the SQ-oriented, musically accurate side of the T1D212's capabilities.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry and Driver Fitment\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the T1D212's exact 11.25\" cutout specification. The T1D212's 6.75\" mounting depth fits inside the cabinet with clearance — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from approximately 8.65\" at the top edge to 14.1\" at the bottom (after accounting for 3\/4\" MDF panel thickness), with the driver's mounting position at cabinet center providing over 10.6\" of clearance behind the motor. That's ample room for the T1's substantial magnet structure and inductive damping heat sink, and gives the motor breathing room to dissipate the thermal load of 800W RMS operation.\u003c\/p\u003e\n    \u003ch3\u003eFlexFit Basket Consideration\u003c\/h3\u003e\n    \u003cp\u003eThe T1D212 uses Rockford's FlexFit basket — a slot-mounted frame pattern that allows fine-tuning of the driver's rotational mounting position. The Proline X wedge baffle is drilled with a standard 8-hole bolt pattern compatible with the T1D212's slotted mounting geometry. Threaded 8\/32 inserts pressed into the baffle backside accept stainless steel machine screws included with the enclosure.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Built for 800W RMS Operation\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Critical for an enclosure housing an 800 watts RMS driver: panel resonance would color the sound and MDF creep would allow air leaks over time under sustained high-power operation. Langboard's density and stability address both.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints, no compromise on structural integrity under high-excursion driver operation.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around. Full compatibility with the T1D212's FlexFit slot-mounted frame pattern.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side. Sized to comfortably handle the T1D212's 800W RMS power delivery.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the volume target and the mating angles between the top and bottom edges — tolerances that manual fabrication can't reliably hold. Internal volume is verified on every unit to ensure the RF-spec 1.25 cubic foot net target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eEnclosure Only\u003c\/h3\u003e\n    \u003cp\u003eThis listing is for the enclosure only. Drop in your existing Rockford Fosgate T1D212 (Dual 2-ohm) or T1D412 (Dual 4-ohm) subwoofer — the cabinet fits both variants identically since RF publishes the same 1.25 cu ft sealed spec across the T1 12\" line. Source your driver from any authorized Rockford Fosgate dealer.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Rockford Fosgate T1D212 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate T1D212 is a dual-voice-coil driver with both coils at 2 ohms, using RF's SWIFT terminal system that allows quick reconfiguration between series and parallel wiring. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eParallel wiring (1 ohm total load):\u003c\/strong\u003e Both voice coils in parallel via SWIFT terminals presents a 1-ohm load to your amplifier — the highest-output configuration, ideal for RF's own Power T500-1bdCP or T750-1bdCP monoblock amplifiers, or any modern class D monoblock stable at 1 ohm. This is the standard high-SPL wiring configuration.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eSeries wiring (4 ohm total load):\u003c\/strong\u003e Both voice coils in series via SWIFT terminals presents a 4-ohm load — used with amplifiers that don't support 1-ohm stable operation, or in dual-driver installs where paralleling two 4-ohm loads at the amp gets you back to a 2-ohm total. Also compatible with class AB amplifiers preferring higher impedance loads.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eT1D412 alternative:\u003c\/strong\u003e Rockford also offers the T1D412 (Dual 4-ohm) variant for installs where 2-ohm parallel (T1D412 wired parallel = 2 ohms) or 8-ohm series operation is preferred. Either variant fits this cabinet identically.\u003c\/p\u003e\n    \u003cp\u003eThe T1D212 is rated for 800 watts RMS continuous (CEA-2031 compliant) with 1600W peak handling. Aim for a well-regulated monoblock delivering 600-800 watts RMS at your chosen impedance for the best combination of headroom, dynamic capability, and long-term reliability. Rockford Fosgate's own Power T-series amplifiers are natural matches. Set your amplifier's active low-pass filter between 80 and 100 Hz for musical accuracy in a full-range system.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects on the enclosure. Your Rockford Fosgate T1D212 subwoofer is covered by Rockford's own 1-year warranty when purchased through an authorized RF dealer. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eRockford's Flagship 12\" Power Sub, in a Spec-Perfect Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003e1.25 cubic feet net internal — Rockford Fosgate's published optimum sealed volume for the T1D212 — in a trunk-friendly wedge geometry that fires the VAST-enhanced 12\" cone rearward into the trunk cavity. 800 watts RMS ready, precision driver-specific engineering, built to order in Tennessee.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44529224220761,"sku":"PO 12-S W T1","price":309.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO12-SWT1Front.png?v=1786848900"},{"product_id":"performance-optimized-wedge-sealed-10-enclosure-rockford-fosgate-t1d210","title":"Performance Optimized Wedge Sealed 10\" Enclosure | Rockford Fosgate T1D210","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Rockford Fosgate T1D210\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 10\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the Rockford Fosgate T1 Power Series\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e0.95 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e0.75 ft³ Net (RF Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e20.75\" × 13.5\" × 8.125\/13\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Rockford Fosgate T1D210 in RF's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate T1D210 is the current-generation Power T1 series 10-inch subwoofer, engineered around Rockford's patented VAST (Vertical Attach Surround Technique) technology that increases effective radiating cone area by up to 25% over conventional 10\" drivers. 600 watts RMS CEA-2031 compliant power handling, 1200 watts peak, dual 2-ohm voice coils, 16mm one-way Xmax, a rigid die-cast aluminum FlexFit basket, Kevlar fiber reinforced paper cone, anodized aluminum voice coil former for superior heat dissipation, and Klippel-verified design tolerances. Same core engineering as its larger T1D212 sibling, sized for smaller trunks and installations where a 12\" won't fit.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 10 for Rockford Fosgate T1 is engineered to hit RF's exact published sealed specification. 0.95 cubic feet gross internal volume minus the T1D210's 0.204 cubic foot total driver displacement lands at 0.746 cubic feet net — essentially exact match to Rockford's 0.75 cubic foot published sealed spec, delivering the alignment RF's engineers designed the T1D210 to operate in.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e0.95 cubic feet gross = 0.746 cubic feet net after the T1D210's 0.204 cubic foot total driver displacement. Essentially exact match to Rockford Fosgate's published 0.75 cubic foot sealed spec for the T1D210. The wedge geometry mounts the woofer on the vertical trunk-lid-side face, firing rearward into the trunk cavity — classic SQ trunk-load pattern applied to Rockford's SPL-capable T1 platform.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (8.125\" at the top, 13\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The compact 10\" cabinet footprint fits trunks where the larger 12\" T1 wedge would be too big.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (20.75\" wide × 13.5\" tall) is where the T1D210 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. This is the classic SQ trunk-load install pattern applied to Rockford's SPL-oriented T1 series.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less-localized presentation than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eCompact Footprint, Full-Power 10\"\u003c\/h4\u003e\n        \u003cp\u003e20.75\" wide by 13.5\" tall by 8.125-13\" deep. Smaller than the 12\" T1 wedge in every dimension while still delivering RF's 600 watt RMS 10\" performance. Fits in compact sedan trunks, coupe cargo areas, and vehicles where the larger 12\" cabinet won't clear parcel shelves or wheelwells.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to Rockford Fosgate's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eRockford Fosgate publishes exactly 0.75 cubic feet net internal as the recommended sealed enclosure volume for the T1D210. This spec is RF's own engineered target — the volume where the T1's motor structure, VAST-enhanced cone assembly, and progressive-roll spider suspension deliver the sealed response their Klippel-verified design targets. The Performance Optimized Wedge Sealed 10 delivers 0.95 cubic feet gross internal, which after subtracting the T1D210's total driver displacement of 0.204 cubic feet lands at 0.746 cubic feet net — right on RF's published spec.\u003c\/p\u003e\n    \u003ch3\u003eSealed vs. Ported for the T1D210\u003c\/h3\u003e\n    \u003cp\u003eThe T1D210 is a versatile driver that Rockford supports both sealed (0.75 cu ft) and vented (1.5 cu ft) applications for. Sealed operation delivers the tightest, most controlled bass response — ideal for musical accuracy, sound quality installs, and daily-driven vehicles where cabin gain rewards a slightly warmer alignment. If you're building a maximum-SPL system or want the peak-tuned resonance boost of a ported enclosure, RF's 1.5 cu ft vented spec is worth considering as a separate build. This cabinet is engineered specifically for RF's sealed alignment — the SQ-oriented, musically accurate side of the T1D210's capabilities.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry and Driver Fitment\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the T1D210's exact 9.0625\" cutout specification. The T1D210's 6.375\" mounting depth fits inside the cabinet with clearance — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from approximately 7.375\" at the top edge to 12.25\" at the bottom (after accounting for 3\/4\" MDF panel thickness), with the driver's mounting position at cabinet center providing over 9.5\" of clearance behind the motor. Ample room for the T1's substantial magnet structure and inductive damping heat sink.\u003c\/p\u003e\n    \u003ch3\u003eFlexFit Basket Consideration\u003c\/h3\u003e\n    \u003cp\u003eThe T1D210 uses Rockford's FlexFit basket — a slot-mounted frame pattern that allows fine-tuning of the driver's rotational mounting position. The Proline X wedge baffle is drilled with a standard 8-hole bolt pattern compatible with the T1D210's slotted mounting geometry. Threaded 8\/32 inserts pressed into the baffle backside accept stainless steel machine screws included with the enclosure.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Built for 600W RMS Operation\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Necessary for an enclosure housing a 600 watts RMS driver: panel resonance would color the sound and MDF creep would allow air leaks over time under sustained high-power operation. Langboard's density and stability address both.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints, no compromise on structural integrity under high-excursion driver operation.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around. Full compatibility with the T1D210's FlexFit slot-mounted frame pattern.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side. Sized to comfortably handle the T1D210's 600W RMS power delivery.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the volume target and the mating angles between the top and bottom edges — tolerances that manual fabrication can't reliably hold. Internal volume is verified on every unit to ensure the RF-spec 0.75 cubic foot net target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eEnclosure Only\u003c\/h3\u003e\n    \u003cp\u003eThis listing is for the enclosure only. Drop in your existing Rockford Fosgate T1D210 (Dual 2-ohm) or T1D410 (Dual 4-ohm) subwoofer — the cabinet fits both variants identically since RF publishes the same 0.75 cu ft sealed spec across the T1 10\" line. Source your driver from any authorized Rockford Fosgate dealer.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Rockford Fosgate T1D210 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate T1D210 is a dual-voice-coil driver with both coils at 2 ohms, using RF's SWIFT terminal system that allows quick reconfiguration between series and parallel wiring. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eParallel wiring (1 ohm total load):\u003c\/strong\u003e Both voice coils in parallel via SWIFT terminals presents a 1-ohm load to your amplifier — the highest-output configuration, ideal for RF's own Power T500-1bdCP monoblock amplifier, or any modern class D monoblock stable at 1 ohm. This is the standard high-SPL wiring configuration.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eSeries wiring (4 ohm total load):\u003c\/strong\u003e Both voice coils in series via SWIFT terminals presents a 4-ohm load — used with amplifiers that don't support 1-ohm stable operation, or in dual-driver installs where paralleling two 4-ohm loads at the amp gets you back to a 2-ohm total. Also compatible with class AB amplifiers preferring higher impedance loads.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eT1D410 alternative:\u003c\/strong\u003e Rockford also offers the T1D410 (Dual 4-ohm) variant for installs where 2-ohm parallel (T1D410 wired parallel = 2 ohms) or 8-ohm series operation is preferred. Either variant fits this cabinet identically.\u003c\/p\u003e\n    \u003cp\u003eThe T1D210 is rated for 600 watts RMS continuous (CEA-2031 compliant) with 1200W peak handling. Aim for a well-regulated monoblock delivering 400-600 watts RMS at your chosen impedance for the best combination of headroom, dynamic capability, and long-term reliability. Rockford Fosgate's own Power T500-1bdCP is a natural match, delivering full rated output at 1-ohm parallel via SWIFT terminals. Set your amplifier's active low-pass filter between 80 and 100 Hz for musical accuracy in a full-range system.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects on the enclosure. Your Rockford Fosgate T1D210 subwoofer is covered by Rockford's own 1-year warranty when purchased through an authorized RF dealer. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eRockford's Power Series 10\" Sub, in a Spec-Perfect Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003e0.75 cubic feet net internal — Rockford Fosgate's published optimum sealed volume for the T1D210 — in a trunk-friendly wedge geometry that fires the VAST-enhanced 10\" cone rearward into the trunk cavity. 600 watts RMS ready, precision driver-specific engineering, built to order in Tennessee.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44529248862297,"sku":"PO 10-S W T1","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO10-SWT1Front.png?v=1786848806"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-rockford-fosgate-t1d215","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Rockford Fosgate T1D215","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; 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font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Rockford Fosgate T1D215\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the Flagship Rockford Fosgate T1 Power Series\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e2.79 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e2.25 ft³ Net (RF Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e28\" × 18\" × 11.2\/17.75\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Rockford Fosgate T1D215 in RF's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate T1D215 is the flagship of Rockford's Power T1 series and the largest single driver in the T1 lineup — 15 inches of Kevlar-reinforced paper cone driven by a 229-ounce magnet and a 3-inch voice coil on an anodized aluminum former. 1000 watts RMS continuous power handling (CEA-2031 compliant), 2000 watts peak, dual 2-ohm voice coils, 16.4mm one-way Xmax, a rigid die-cast aluminum FlexFit basket, Santoprene VAST surround that extends effective radiating cone area by up to 25% over conventional 15\" drivers, and Klippel-verified design tolerances. When you need real 15-inch output from a driver with the engineering pedigree to deliver it cleanly, this is Rockford's answer.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 15 for Rockford Fosgate T1 is engineered to hit RF's exact published sealed specification. 2.79 cubic feet gross internal volume minus the T1D215's 0.547 cubic foot total driver displacement lands at 2.243 cubic feet net — essentially exact match to Rockford's 2.25 cubic foot published sealed spec, delivering the alignment RF's engineers designed the T1D215 to operate in.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e2.79 cubic feet gross = 2.243 cubic feet net after the T1D215's 0.547 cubic foot total driver displacement. Essentially exact match to Rockford Fosgate's published 2.25 cubic foot sealed spec for the T1D215. The wedge geometry mounts the 15-inch woofer on the vertical trunk-lid-side face, firing rearward into the trunk cavity — classic SQ trunk-load pattern applied to Rockford's flagship 15\" SPL platform.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (11.2\" at the top, 17.75\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. Even at this substantial 15\" cabinet size, the wedge geometry fills trunk space efficiently rather than boxing off cargo area.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (28\" wide × 18\" tall) is where the T1D215 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. This is the classic SQ trunk-load install pattern applied to Rockford's flagship 15\" driver.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less-localized presentation than direct-firing setups, and particularly important with a 15\" driver where standing waves and boundary reflections become more pronounced.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eVehicle Sizing Requirements\u003c\/h4\u003e\n        \u003cp\u003e28\" wide by 18\" tall by 11.2-17.75\" deep is a substantial cabinet. Requires a full-size sedan trunk, a wagon or SUV cargo area, or a pickup extended-cab or crew-cab install with adequate space behind the rear seat. Not suitable for compact sedans, coupes, or small hatchbacks — measure your trunk carefully before ordering. The 18\" height in particular is critical for parcel shelf clearance.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to Rockford Fosgate's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eRockford Fosgate publishes exactly 2.25 cubic feet net internal as the recommended sealed enclosure volume for the T1D215. This spec is RF's own engineered target — the volume where the T1's motor structure, VAST-enhanced Santoprene surround, and progressive-roll spider suspension deliver the sealed response their Klippel-verified design targets. The Performance Optimized Wedge Sealed 15 delivers 2.79 cubic feet gross internal, which after subtracting the T1D215's total driver displacement of 0.547 cubic feet lands at 2.243 cubic feet net — right on RF's published spec.\u003c\/p\u003e\n    \u003ch3\u003eSealed vs. Ported for the T1D215\u003c\/h3\u003e\n    \u003cp\u003eThe T1D215 is a versatile driver that Rockford supports both sealed (2.25 cu ft) and vented (2.66 cu ft) applications for. Sealed operation delivers the tightest, most controlled bass response — ideal for musical accuracy, sound quality installs, and daily-driven vehicles where cabin gain rewards a slightly warmer alignment. If you're building a maximum-SPL system or want the peak-tuned resonance boost of a ported enclosure, RF's 2.66 cu ft vented spec is worth considering as a separate build. This cabinet is engineered specifically for RF's sealed alignment — the SQ-oriented, musically accurate side of the T1D215's capabilities.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry and Driver Fitment\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the T1D215's exact 13.9375\" cutout specification. The T1D215's 8.39\" mounting depth fits inside the cabinet with clearance — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from approximately 10.45\" at the top edge to 17\" at the bottom (after accounting for 3\/4\" MDF panel thickness), with the driver's mounting position at cabinet center providing over 13.7\" of clearance behind the motor. Ample room for the T1D215's substantial 229-ounce magnet structure and inductive damping heat sink.\u003c\/p\u003e\n    \u003ch3\u003eFlexFit Basket Consideration\u003c\/h3\u003e\n    \u003cp\u003eThe T1D215 uses Rockford's FlexFit basket — a slot-mounted frame pattern that allows fine-tuning of the driver's rotational mounting position. The Proline X wedge baffle is drilled with a standard bolt pattern compatible with the T1D215's slotted mounting geometry. Threaded 8\/32 inserts pressed into the baffle backside accept stainless steel machine screws included with the enclosure. Given the T1D215's weight (~40 pounds installed), the mounting hardware and threaded insert placement are engineered for the driver's mass load, not just the vibration load.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Built for 1000W RMS Flagship Operation\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Critical for an enclosure housing a 1000 watts RMS driver: panel resonance and MDF creep would compound over time under sustained flagship-power operation. Langboard's density and stability address both, and the panel sizes required for a 15\" cabinet at these dimensions make material quality especially important.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints. Especially important at the 15\" cabinet scale where each panel joint experiences greater peak acoustic pressure.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. The T1D215's 40+ pound driver weight and 16.4mm Xmax excursion put substantial mechanical demand on mounting hardware — the threaded inserts and 3\/4\" baffle thickness are specified to handle both, not to marginal spec.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side. Sized to comfortably handle the T1D215's 1000W RMS power delivery with margin for peak transients.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the volume target and the mating angles between the top and bottom edges — at 15\" cabinet scale with substantially larger panel dimensions, these tolerances are especially critical. Internal volume is verified on every unit to ensure the RF-spec 2.25 cubic foot net target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eEnclosure Only\u003c\/h3\u003e\n    \u003cp\u003eThis listing is for the enclosure only. Drop in your existing Rockford Fosgate T1D215 (Dual 2-ohm) or T1D415 (Dual 4-ohm) subwoofer — the cabinet fits both variants identically since RF publishes the same 2.25 cu ft sealed spec across the T1 15\" line. Source your driver from any authorized Rockford Fosgate dealer.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Rockford Fosgate T1D215 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate T1D215 is a dual-voice-coil driver with both coils at 2 ohms, using RF's SWIFT terminal system that allows quick reconfiguration between series and parallel wiring. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eParallel wiring (1 ohm total load):\u003c\/strong\u003e Both voice coils in parallel via SWIFT terminals presents a 1-ohm load to your amplifier — the highest-output configuration, ideal for RF's own Power T1000-1bdCP monoblock amplifier, or any modern class D monoblock stable at 1 ohm. This is the standard high-SPL wiring configuration and the natural pairing for the T1D215's 1000W RMS power handling.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eSeries wiring (4 ohm total load):\u003c\/strong\u003e Both voice coils in series via SWIFT terminals presents a 4-ohm load — used with amplifiers that don't support 1-ohm stable operation, or in dual-driver installs where paralleling two 4-ohm loads at the amp gets you back to a 2-ohm total. Also compatible with class AB amplifiers preferring higher impedance loads.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eT1D415 alternative:\u003c\/strong\u003e Rockford also offers the T1D415 (Dual 4-ohm) variant for installs where 2-ohm parallel (T1D415 wired parallel = 2 ohms) or 8-ohm series operation is preferred. Either variant fits this cabinet identically.\u003c\/p\u003e\n    \u003cp\u003eThe T1D215 is rated for 1000 watts RMS continuous (CEA-2031 compliant) with 2000W peak handling. Aim for a well-regulated class D monoblock delivering 800-1000 watts RMS at your chosen impedance for the best combination of headroom and dynamic capability. Rockford Fosgate's own Power T1000-1bdCP is the natural match, delivering full rated output at 1-ohm parallel via SWIFT terminals with Constant Power design that maintains rated output across impedance loads. Set your amplifier's active low-pass filter between 80 and 100 Hz for musical accuracy in a full-range system. A subsonic filter around 20-25 Hz is recommended given the T1D215's 26.3 Hz Fs.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order. Note that the 15\" cabinet's substantial size may require freight shipping rather than standard parcel — we'll advise on shipping method after order confirmation.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects on the enclosure. Your Rockford Fosgate T1D215 subwoofer is covered by Rockford's own 1-year warranty when purchased through an authorized RF dealer. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eRockford's Flagship 15\" T1, in a Spec-Perfect Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003e2.25 cubic feet net internal — Rockford Fosgate's published optimum sealed volume for the T1D215 — in a trunk-load wedge geometry that fires the VAST-enhanced 15\" cone rearward into the trunk cavity. 1000 watts RMS ready, 16.4mm Xmax, 229-ounce magnet, built to order in Tennessee.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44529318953049,"sku":"PO 15-S W T1","price":389.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO15-SWT1Front.png?v=1786848841"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-rockford-fosgate-p3d2-15","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Rockford Fosgate P3D2-15","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Rockford Fosgate P3D2-15\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 15\" Sealed Wedge Enclosure | Musically Tuned for the Rockford Fosgate Punch P3 Series\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e2.0 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e1.75 ft³ Net (Musical Tune)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e26.25\" × 18\" × 8.6\/15.2\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Rockford Fosgate P3D2-15, Tuned for Musical Accuracy\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate P3D2-15 is the flagship of Rockford's Punch P3 series and their best-performing musical 15\" subwoofer. Anodized aluminum cone with heat-sinking dust cap, VAST (Vertical Attach Surround Technique) Santoprene surround that extends effective radiating cone area by up to 25%, a hybrid stamp-cast basket that balances rigidity with reduced resonance, an extended pole piece with bumped backplate for heavy excursion, a 2.5-inch four-layer voice coil on an anodized aluminum former, and unique spider venting to keep the motor cooler under sustained operation. 600 watts RMS CEA-2031 compliant power handling, 1200W peak, dual 2-ohm voice coils, Klippel-verified motor. Different design philosophy from the T1 series: where the T1 targets flagship SPL output, the P3 targets musical accuracy and versatility at a friendlier price point.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 15 for Rockford Fosgate P3 is engineered to hit a musically-tuned alignment for the P3D2-15. 2.0 cubic feet gross internal volume minus the P3D2-15's 0.247 cubic foot total driver displacement lands at 1.753 cubic feet net — approximately 11% larger than Rockford's published 1.58 cubic foot sealed optimum, well within RF's recommended sealed range, and deliberately tuned for a lower system Q than RF's peak-output-oriented spec.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e2.0 cubic feet gross = 1.753 cubic feet net after the P3D2-15's 0.247 cubic foot total driver displacement. RF's published sealed optimum is 1.58 cu ft (targeting a system Qtc near 1.0 for peak output). This cabinet runs slightly larger to deliver a system Qtc near 0.85 — better transient response, deeper F3, less peak hump, more musical presentation. Well within RF's recommended sealed enclosure range for the P3D2-15.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWhy This Box Is Tuned Larger Than RF's \"Optimum\" Spec\u003c\/h2\u003e\n    \u003cp\u003eThis is where the Performance Optimized name earns its keep. RF's published 1.58 cu ft sealed optimum for the P3D2-15 targets a system Qtc close to 1.0 — an alignment that delivers peak SPL output efficiency in a modest cabinet footprint. It's a valid design target, but it's not the only one.\u003c\/p\u003e\n    \u003cp\u003eSystem Qtc (total Q of the driver + enclosure system) determines the shape of the sealed alignment's response. Higher Qtc = more peak output at the resonance frequency, sharper rolloff below, less transient accuracy, and a \"punchier\" but less refined presentation. Lower Qtc = smoother rolloff, better transient response, deeper F3, and a more musically accurate presentation with better stereo imaging in the low bass region.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eRF's Spec (Qtc ≈ 1.0)\u003c\/h4\u003e\n        \u003cp\u003e1.58 cu ft net. Optimized for peak output in a compact cabinet. Peak hump around Fc gives a \"loud\" impression at moderate power. Sharper below-cutoff rolloff. Better fits SPL-oriented builds and demo situations where headline output matters more than musical accuracy.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePO Wedge Tune (Qtc ≈ 0.85)\u003c\/h4\u003e\n        \u003cp\u003e1.75 cu ft net. Optimized for musical accuracy and daily-driver satisfaction. Flatter response through the peak region, better transient recovery, slightly deeper F3, better integration with midbass. Fits SQ-oriented builds and full-range systems where the sub needs to blend, not dominate.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eBoth alignments are within RF's stated sealed range for the P3D2-15. The 11% cabinet size difference is deliberate and modest — enough to shift the Q meaningfully, not enough to leave the driver's designed operating envelope. If you want peak SPL and don't care about musical accuracy, RF's 1.58 spec is right for you (and we can build to that spec on request). If you want the P3D2-15 to sound its musical best in a daily-driven vehicle, this is the box.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (8.6\" at the top, 15.2\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The P3's shallower 7.58\" mounting depth allows a lower-profile top face than the T1 15\" wedge, making this cabinet more fittable in vehicles with tighter parcel-shelf clearance.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (26.25\" wide × 18\" tall) is where the P3D2-15 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. Classic SQ trunk-load install pattern applied to Rockford's most musical 15\" driver.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less-localized presentation than direct-firing setups. Pairs especially well with the P3's already-musical character.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eVehicle Sizing Requirements\u003c\/h4\u003e\n        \u003cp\u003e26.25\" wide by 18\" tall by 8.6-15.2\" deep. Requires a full-size sedan trunk, wagon or SUV cargo area, or pickup extended-cab or crew-cab install with adequate behind-seat space. The 18\" height is critical for parcel shelf clearance — measure carefully before ordering. Substantially more trunk-friendly than the T1D215 wedge but still requires real cargo space.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eDriver Fitment and Mounting Geometry\u003c\/h2\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the P3D2-15's exact 13.94\" cutout specification. The P3D2-15's 7.58\" mounting depth fits inside the cabinet with generous clearance — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from approximately 7.85\" at the top edge to 14.45\" at the bottom (after accounting for 3\/4\" MDF panel thickness), with the driver's mounting position at cabinet center providing over 10.4\" of clearance behind the motor. Ample room for the P3's motor structure and extended pole piece \/ bumped backplate assembly.\u003c\/p\u003e\n    \u003ch3\u003eFlexFit Basket Consideration\u003c\/h3\u003e\n    \u003cp\u003eThe P3D2-15 uses Rockford's FlexFit basket — a slot-mounted frame pattern that allows fine-tuning of the driver's rotational mounting position. The Proline X wedge baffle is drilled with a standard bolt pattern compatible with the P3D2-15's slotted mounting geometry. Threaded 8\/32 inserts pressed into the baffle backside accept stainless steel machine screws included with the enclosure.\u003c\/p\u003e\n    \u003ch3\u003eWeight Advantage vs the T1D215\u003c\/h3\u003e\n    \u003cp\u003eThe P3D2-15 is substantially lighter than the T1D215 flagship (the P3's smaller magnet structure and lighter hybrid stamp-cast basket versus the T1's massive 229-ounce magnet and full die-cast frame). Loaded system weight for this cabinet is approximately 70-80 pounds total — still a two-person install but far more manageable than the 105-115 pound T1D215 loaded system. Standard parcel shipping is typically viable.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Built for 600W RMS Operation\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Panel resonance would color the P3's naturally musical response, and MDF creep would allow air leaks over time under sustained operation. Langboard's density and stability address both, especially important at the 15\" cabinet scale.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints, no compromise on structural integrity.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. Compatible with the P3D2-15's FlexFit slot-mounted frame pattern. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side. Comfortably handles the P3D2-15's 600W RMS power delivery.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the target 1.75 cu ft net volume and the mating angles between the top and bottom edges. Internal volume is verified on every unit to ensure the musically-tuned target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eEnclosure Only\u003c\/h3\u003e\n    \u003cp\u003eThis listing is for the enclosure only. Drop in your existing Rockford Fosgate P3D2-15 (Dual 2-ohm) or P3D4-15 (Dual 4-ohm) subwoofer — the cabinet fits both variants identically since RF publishes the same sealed spec across the P3 15\" line. Source your driver from any authorized Rockford Fosgate dealer.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Rockford Fosgate P3D2-15 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate P3D2-15 is a dual-voice-coil driver with both coils at 2 ohms, using RF's 10-AWG nickel-plated push terminals for direct wire attachment. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eParallel wiring (1 ohm total load):\u003c\/strong\u003e Both voice coils wired in parallel presents a 1-ohm load to your amplifier — the highest-output configuration, ideal for RF's own Punch P600X1 or Prime R500X1D monoblock amplifiers, or any modern class D monoblock stable at 1 ohm. This is the standard high-output wiring configuration for a single-driver P3 install.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eSeries wiring (4 ohm total load):\u003c\/strong\u003e Both voice coils wired in series presents a 4-ohm load — used with amplifiers that don't support 1-ohm stable operation, or in dual-driver installs where paralleling two 4-ohm loads at the amp gets you back to a 2-ohm total. Also compatible with class AB amplifiers preferring higher impedance loads.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eP3D4-15 alternative:\u003c\/strong\u003e Rockford also offers the P3D4-15 (Dual 4-ohm) variant for installs where 2-ohm parallel or 8-ohm series operation is preferred. Either variant fits this cabinet identically.\u003c\/p\u003e\n    \u003cp\u003eThe P3D2-15 is rated for 600 watts RMS continuous (CEA-2031 compliant) with 1200W peak handling. Aim for a well-regulated class D monoblock delivering 400-600 watts RMS at your chosen impedance for the best combination of headroom and dynamic capability. Rockford Fosgate's own Punch P600X1 monoblock is a natural match. Set your amplifier's active low-pass filter between 80 and 100 Hz for musical accuracy in a full-range system.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects on the enclosure. Your Rockford Fosgate P3D2-15 subwoofer is covered by Rockford's own 1-year warranty when purchased through an authorized RF dealer. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eRockford's Musical 15\" Punch, Tuned for Real-World Listening\u003c\/h2\u003e\n    \u003cp\u003e1.75 cubic feet net — deliberately tuned larger than RF's peak-output spec to deliver the P3D2-15's most musical presentation in a trunk-load wedge that fires the aluminum cone rearward into the trunk cavity. 600 watts RMS ready, precision driver-specific engineering, built to order in Tennessee.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44529370529881,"sku":"PO 15-S W P3","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO15-SWP3Front.png?v=1786846355"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-rockford-fosgate-p3d2-12","title":"Performance Optimized Wedge Sealed 12\" Enclosure | Rockford Fosgate P3D2-12","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Rockford Fosgate P3D2-12\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 12\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the Rockford Fosgate Punch P3 Series\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.215 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e1.02 ft³ Net (RF Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e20.25\" × 15\" × 9.125\/14.59\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Rockford Fosgate P3D2-12 in RF's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate P3D2-12 is Rockford's best-performing 12-inch Punch P3 subwoofer. Anodized aluminum cone with heat-sinking dust cap, VAST (Vertical Attach Surround Technique) Santoprene surround that extends effective radiating cone area by up to 25%, a hybrid stamp-cast basket that balances rigidity with reduced resonance, an extended pole piece with bumped backplate for heavy excursion, a 2.5-inch four-layer voice coil on an anodized aluminum former, and unique spider venting to keep the motor cooler under sustained operation. 600 watts RMS CEA-2031 compliant power handling, 1200W peak, dual 2-ohm voice coils, Klippel-verified motor. Same core engineering as the flagship P3D2-15 sibling, scaled to a 12\" cone form factor and Rockford's most trunk-friendly full-power 12\" driver.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 12 for Rockford Fosgate P3 is engineered to hit RF's exact published sealed specification. 1.215 cubic feet gross internal volume minus the P3D2-12's 0.194 cubic foot total driver displacement lands at 1.021 cubic feet net — essentially exact match to Rockford's 1.02 cubic foot published sealed spec, delivering the alignment RF's engineers designed the P3D2-12 to operate in.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e1.215 cubic feet gross = 1.021 cubic feet net after the P3D2-12's 0.194 cubic foot total driver displacement. Essentially exact match to Rockford Fosgate's published 1.02 cubic foot sealed spec for the P3D2-12. With the P3D2-12's T\/S parameters (Qts 0.49, Vas 57.7 L), that spec produces a system Qtc near 0.85 — RF's 12\" spec is already tuned for musical accuracy out of the box.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (9.125\" at the top, 14.59\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The P3's shallow 6.66\" mounting depth allows a low-profile top face that fits parcel-shelf-limited trunks the deeper T1 wedge won't clear.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (20.25\" wide × 15\" tall) is where the P3D2-12 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. Classic SQ trunk-load install pattern applied to Rockford's most musical 12\" driver.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less-localized presentation than direct-firing setups. Pairs especially well with the P3's already-musical character.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eCompact Cabinet, Fits Most Vehicles\u003c\/h4\u003e\n        \u003cp\u003e20.25\" wide by 15\" tall by 9.125-14.59\" deep. Fits sedan trunks, coupe cargo areas, hatchbacks and wagons, and pickup extended-cab installs without the height or footprint concerns of the 15\" P3 wedge. If the trunk holds a golf bag, it holds this cabinet.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to Rockford Fosgate's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eRockford Fosgate publishes exactly 1.02 cubic feet net internal as the recommended sealed enclosure volume for the P3D2-12. This spec is RF's own engineered target — the volume where the P3D2-12's motor structure, VAST-enhanced Santoprene surround, and progressive-roll spider suspension deliver the sealed response their Klippel-verified design targets. The Performance Optimized Wedge Sealed 12 delivers 1.215 cubic feet gross internal, which after subtracting the P3D2-12's total driver displacement of 0.194 cubic feet lands at 1.021 cubic feet net — right on RF's published spec.\u003c\/p\u003e\n    \u003ch3\u003eWhy RF's 12\" Spec Is Already the Musical Spec\u003c\/h3\u003e\n    \u003cp\u003eWorking through the driver math: the P3D2-12 has published T\/S parameters of Qts 0.49 and Vas 57.7 liters. In RF's 1.02 cu ft sealed spec, the compliance ratio (Vas\/Vb) works out to approximately 2.0, which produces a system Qtc of approximately 0.85 — the same musically-oriented alignment target we use across the PO Wedge line. Different from RF's 15\" P3 spec, which targets a higher Qtc closer to 1.0 for peak SPL output efficiency in a smaller cabinet. Fortunately for 12\" P3 buyers, RF's 12\" spec doesn't require the tuning adjustment their 15\" spec does. This box hits RF's actual number.\u003c\/p\u003e\n    \u003ch3\u003eSealed vs. Ported for the P3D2-12\u003c\/h3\u003e\n    \u003cp\u003eThe P3D2-12 is a versatile driver that Rockford supports both sealed (1.02 cu ft) and vented (1.79 cu ft) applications for. Sealed operation delivers the tightest, most controlled bass response — ideal for musical accuracy, sound quality installs, and daily-driven vehicles where cabin gain rewards a slightly warmer alignment. Ported delivers additional output efficiency in the peak-tuned range at the cost of transient accuracy and 75% more cabinet volume. This cabinet is engineered specifically for RF's sealed alignment — the SQ-oriented, musically accurate side of the P3D2-12's capabilities.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry and Driver Fitment\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the P3D2-12's exact 11.25\" cutout specification. The P3D2-12's very shallow 6.66\" mounting depth fits inside the cabinet with generous clearance — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from approximately 8.375\" at the top edge to 13.84\" at the bottom (after accounting for 3\/4\" MDF panel thickness), with the driver's mounting position at cabinet center providing over 10.3\" of clearance behind the motor. Substantial room for the P3's motor structure and extended pole piece \/ bumped backplate assembly.\u003c\/p\u003e\n    \u003ch3\u003eFlexFit Basket Consideration\u003c\/h3\u003e\n    \u003cp\u003eThe P3D2-12 uses Rockford's FlexFit basket — a slot-mounted frame pattern that allows fine-tuning of the driver's rotational mounting position. The Proline X wedge baffle is drilled with a standard bolt pattern compatible with the P3D2-12's slotted mounting geometry. Threaded 8\/32 inserts pressed into the baffle backside accept stainless steel machine screws included with the enclosure.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Built for 600W RMS Operation\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Panel resonance would color the P3's naturally musical response, and MDF creep would allow air leaks over time under sustained operation. Langboard's density and stability address both.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints, no compromise on structural integrity.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. Compatible with the P3D2-12's FlexFit slot-mounted frame pattern. No stripped pilot holes, no MDF damage from drywall screws, no surprises when the next driver upgrade rolls around.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side. Comfortably handles the P3D2-12's 600W RMS power delivery.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the RF-spec 1.02 cu ft net volume target and the mating angles between the top and bottom edges. Internal volume is verified on every unit to ensure the manufacturer's spec target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eEnclosure Only\u003c\/h3\u003e\n    \u003cp\u003eThis listing is for the enclosure only. Drop in your existing Rockford Fosgate P3D2-12 (Dual 2-ohm) or P3D4-12 (Dual 4-ohm) subwoofer — the cabinet fits both variants identically since RF publishes the same 1.02 cu ft sealed spec across the P3 12\" line. Source your driver from any authorized Rockford Fosgate dealer.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Rockford Fosgate P3D2-12 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate P3D2-12 is a dual-voice-coil driver with both coils at 2 ohms, using RF's 10-AWG nickel-plated push terminals for direct wire attachment. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eParallel wiring (1 ohm total load):\u003c\/strong\u003e Both voice coils wired in parallel presents a 1-ohm load to your amplifier — the highest-output configuration, ideal for RF's own Punch P600X1 or Prime R500X1D monoblock amplifiers, or any modern class D monoblock stable at 1 ohm. Standard high-output wiring for a single-driver P3 install.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eSeries wiring (4 ohm total load):\u003c\/strong\u003e Both voice coils wired in series presents a 4-ohm load — used with amplifiers that don't support 1-ohm stable operation, or in dual-driver installs where paralleling two 4-ohm loads at the amp gets you back to a 2-ohm total. Also compatible with class AB amplifiers preferring higher impedance loads.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eP3D4-12 alternative:\u003c\/strong\u003e Rockford also offers the P3D4-12 (Dual 4-ohm) variant for installs where 2-ohm parallel or 8-ohm series operation is preferred. Either variant fits this cabinet identically.\u003c\/p\u003e\n    \u003cp\u003eThe P3D2-12 is rated for 600 watts RMS continuous (CEA-2031 compliant) with 1200W peak handling — same power rating as the flagship 15\" P3D2-15 despite the smaller cone. Aim for a well-regulated class D monoblock delivering 400-600 watts RMS at your chosen impedance for the best combination of headroom and dynamic capability. Rockford Fosgate's own Punch P600X1 monoblock is a natural match. Set your amplifier's active low-pass filter between 80 and 100 Hz for musical accuracy in a full-range system.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects on the enclosure. Your Rockford Fosgate P3D2-12 subwoofer is covered by Rockford's own 1-year warranty when purchased through an authorized RF dealer. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eRockford's Musical 12\" Punch, in RF's Spec-Perfect Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003e1.02 cubic feet net — Rockford Fosgate's published sealed spec for the P3D2-12, which naturally targets a musical system Qtc near 0.85. Trunk-load wedge geometry that fires the aluminum cone rearward into the trunk cavity. 600 watts RMS ready, built to order in Tennessee.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44529409818713,"sku":"PO 12-S W P3","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO12-SWP3Front.png?v=1786846321"},{"product_id":"performance-optimized-wedge-sealed-10-enclosure-rockford-fosgate-p3d2-10","title":"Performance Optimized Wedge Sealed 10\" Enclosure | Rockford Fosgate P3D2-10","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Rockford Fosgate P3D2-10\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 10\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the Rockford Fosgate Punch P3 Series\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e0.717 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e0.59 ft³ Net (RF Spec)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e17.25\" × 13\" × 8\/12.73\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Rockford Fosgate P3D2-10 in RF's Spec-Perfect Sealed Volume\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate P3D2-10 is Rockford's best-performing 10-inch Punch P3 subwoofer. Anodized aluminum cone with heat-sinking dust cap, VAST (Vertical Attach Surround Technique) Santoprene surround that extends effective radiating cone area by up to 25%, a hybrid stamp-cast basket that balances rigidity with reduced resonance, an extended pole piece with bumped backplate for heavy excursion, an anodized aluminum voice coil former, and unique spider venting to keep the motor cooler under sustained operation. 500 watts RMS CEA-2031 compliant power handling, 1000W peak, dual 2-ohm voice coils, Klippel-verified motor. Same core P3 platform as the 12\" and 15\" siblings, scaled to a compact 10\" cone for the most trunk-fittable Punch driver in RF's lineup.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 10 for Rockford Fosgate P3 is engineered to hit RF's exact published sealed specification. 0.717 cubic feet gross internal volume minus the P3D2-10's 0.127 cubic foot total driver displacement lands at 0.590 cubic feet net — exact match to Rockford's 0.59 cubic foot published sealed spec, delivering the alignment RF's engineers designed the P3D2-10 to operate in.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e0.717 cubic feet gross = 0.590 cubic feet net after the P3D2-10's 0.127 cubic foot total driver displacement. Exact match to Rockford Fosgate's published 0.59 cubic foot sealed spec for the P3D2-10. With the P3D2-10's T\/S parameters (Qts 0.49, Vas 27 L), that spec produces a system Qtc near 0.82 with an F3 around 39 Hz — RF's 10\" P3 spec naturally lands in musical alignment territory out of the box.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (8\" at the top, 12.73\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The P3's very shallow 6.18\" mounting depth allows a low-profile top face that fits parcel-shelf-limited trunks in compact vehicles.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (17.25\" wide × 13\" tall) is where the P3D2-10 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. Classic SQ trunk-load install pattern applied to Rockford's most compact musical driver.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity rather than directly into the cabin uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less-localized presentation than direct-firing setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSmallest Cabinet in the PO Wedge Line\u003c\/h4\u003e\n        \u003cp\u003e17.25\" wide by 13\" tall by 8-12.73\" deep. This is the most compact cabinet in the entire Performance Optimized Wedge lineup. Fits compact sedan trunks, coupe cargo areas, small hatchback trunks, and pickup single-cab installs where larger 10\" wedges would be too big. If you can fit a duffel bag in the trunk, this cabinet goes in.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eEngineered to Rockford Fosgate's Published Sealed Specification\u003c\/h2\u003e\n    \u003cp\u003eRockford Fosgate publishes exactly 0.59 cubic feet net internal as the recommended sealed enclosure volume for the P3D2-10. This spec is RF's own engineered target — the volume where the P3D2-10's motor structure, VAST-enhanced Santoprene surround, and progressive-roll spider suspension deliver the sealed response their Klippel-verified design targets. The Performance Optimized Wedge Sealed 10 delivers 0.717 cubic feet gross internal, which after subtracting the P3D2-10's total driver displacement of 0.127 cubic feet lands at 0.590 cubic feet net — exact match to RF's published spec.\u003c\/p\u003e\n    \u003ch3\u003eRF's 10\" P3 Spec Naturally Targets Musical Alignment\u003c\/h3\u003e\n    \u003cp\u003eWorking through the driver math: the P3D2-10 has published T\/S parameters of Qts 0.49 and equivalent compliance Vas of 27 liters. In RF's 0.59 cu ft sealed spec, the compliance ratio (Vas\/Vb) works out to approximately 1.62, which produces a system Qtc of approximately 0.82 with an F3 near 39 Hz. That's the same musically-oriented alignment target we use across the PO Wedge line. Same pattern as the 12\" P3 — RF chose musical alignments for both the 10\" and 12\" P3 specs. Only the 15\" P3 spec runs tighter for peak SPL efficiency in a more compact cabinet, which is why the 15\" build is tuned larger than RF's optimum while the 10\" and 12\" builds hit RF's spec exactly.\u003c\/p\u003e\n    \u003ch3\u003eSealed vs. Ported for the P3D2-10\u003c\/h3\u003e\n    \u003cp\u003eThe P3D2-10 is a versatile driver that Rockford supports both sealed (0.59 cu ft) and vented (1.4 cu ft) applications for. Sealed operation delivers the tightest, most controlled bass response — ideal for musical accuracy, sound quality installs, and daily-driven vehicles where cabin gain rewards a slightly warmer alignment. Ported delivers additional output efficiency in the peak-tuned range at the cost of transient accuracy and 138% more cabinet volume. This cabinet is engineered specifically for RF's sealed alignment.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry and Driver Fitment\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the P3D2-10's exact 9.13\" cutout specification. The P3D2-10's very shallow 6.18\" mounting depth fits inside the cabinet with generous clearance — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from approximately 7.25\" at the top edge to 11.98\" at the bottom (after accounting for 3\/4\" MDF panel thickness), with the driver's mounting position at cabinet center providing over 9.4\" of clearance behind the motor. Substantial room for the P3's motor structure and extended pole piece \/ bumped backplate assembly.\u003c\/p\u003e\n    \u003ch3\u003eFlexFit Basket Consideration\u003c\/h3\u003e\n    \u003cp\u003eThe P3D2-10 uses Rockford's FlexFit basket — a slot-mounted frame pattern that allows fine-tuning of the driver's rotational mounting position. The Proline X wedge baffle is drilled with a standard bolt pattern compatible with the P3D2-10's slotted mounting geometry. Threaded 8\/32 inserts pressed into the baffle backside accept stainless steel machine screws included with the enclosure.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Built for 500W RMS Operation\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Panel resonance would color the P3's naturally musical response, and MDF creep would allow air leaks over time under sustained operation. Langboard's density and stability address both.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003e8\/32 Threaded Inserts\u003c\/h4\u003e\n        \u003cp\u003eThreaded inserts pressed into the vertical woofer baffle accept stainless steel mounting screws. Compatible with the P3D2-10's FlexFit slot-mounted frame pattern. No stripped pilot holes, no MDF damage from drywall screws.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side. Comfortably handles the P3D2-10's 500W RMS power delivery.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the RF-spec 0.59 cu ft net volume target and the mating angles between the top and bottom edges. Internal volume is verified on every unit to ensure the manufacturer's spec target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eEnclosure Only\u003c\/h3\u003e\n    \u003cp\u003eThis listing is for the enclosure only. Drop in your existing Rockford Fosgate P3D2-10 (Dual 2-ohm) or P3D4-10 (Dual 4-ohm) subwoofer — the cabinet fits both variants identically since RF publishes the same 0.59 cu ft sealed spec across the P3 10\" line. Source your driver from any authorized Rockford Fosgate dealer.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Rockford Fosgate P3D2-10 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Rockford Fosgate P3D2-10 is a dual-voice-coil driver with both coils at 2 ohms, using RF's 10-AWG nickel-plated push terminals for direct wire attachment. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eParallel wiring (1 ohm total load):\u003c\/strong\u003e Both voice coils wired in parallel presents a 1-ohm load to your amplifier — the highest-output configuration, ideal for RF's own Punch P400X1 or Prime R500X1D monoblock amplifiers, or any modern class D monoblock stable at 1 ohm. Standard high-output wiring for a single-driver P3 install.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eSeries wiring (4 ohm total load):\u003c\/strong\u003e Both voice coils wired in series presents a 4-ohm load — used with amplifiers that don't support 1-ohm stable operation, or in dual-driver installs where paralleling two 4-ohm loads at the amp gets you back to a 2-ohm total. Also compatible with class AB amplifiers preferring higher impedance loads.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eP3D4-10 alternative:\u003c\/strong\u003e Rockford also offers the P3D4-10 (Dual 4-ohm) variant for installs where 2-ohm parallel or 8-ohm series operation is preferred. Either variant fits this cabinet identically.\u003c\/p\u003e\n    \u003cp\u003eThe P3D2-10 is rated for 500 watts RMS continuous (CEA-2031 compliant) with 1000W peak handling. Aim for a well-regulated class D monoblock delivering 300-500 watts RMS at your chosen impedance for the best combination of headroom and dynamic capability. Rockford Fosgate's own Punch P400X1 or Prime R500X1D monoblocks are natural matches. Set your amplifier's active low-pass filter between 80 and 100 Hz for musical accuracy in a full-range system.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects on the enclosure. Your Rockford Fosgate P3D2-10 subwoofer is covered by Rockford's own 1-year warranty when purchased through an authorized RF dealer. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eRockford's Compact Musical 10\" Punch, in RF's Spec-Perfect Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003e0.59 cubic feet net — Rockford Fosgate's published sealed spec for the P3D2-10, which naturally targets a musical system Qtc near 0.82. The smallest cabinet in the PO Wedge line, in a trunk-load geometry that fires the aluminum cone rearward into the trunk cavity. 500 watts RMS ready, built to order in Tennessee.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44529465032793,"sku":"PO 10-S W P3","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO10-SWP3Front.png?v=1786846274"},{"product_id":"performance-optimized-wedge-sealed-10-audiophile-enclosure-image-dynamics-idmax10-v-4","title":"Performance Optimized Wedge Sealed 10\" Audiophile Enclosure | Image Dynamics IDMAX10 V.4","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .po-hero .po-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 30px 0; }\n  .po-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }\n  .po-badge { background: rgba(6, 182, 212, 0.2); border: 1px solid #06b6d4; color: #67e8f9; padding: 8px 20px; border-radius: 20px; font-size: 0.9em; font-weight: 600; letter-spacing: 0.5px; }\n  .po-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .po-section:nth-child(even) { background: #f0f9ff; }\n  .po-section h2 { color: #0e7490; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .po-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .po-section p { font-size: 1.05em; color: #334155; margin-bottom: 18px; }\n  .po-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 30px 0; }\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-alignment-table { width: 100%; border-collapse: collapse; margin: 20px 0; background: #ffffff; }\n  .po-alignment-table th { background: #0e7490; color: white; padding: 12px; text-align: left; font-weight: 600; font-size: 0.95em; }\n  .po-alignment-table td { padding: 12px; border-bottom: 1px solid #e2e8f0; font-size: 0.98em; color: #334155; }\n  .po-alignment-table tr.po-highlight-row { background: #f0f9ff; }\n  .po-alignment-table tr.po-highlight-row td { font-weight: 600; color: #0e7490; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n    .po-alignment-table { font-size: 0.85em; }\n    .po-alignment-table th, .po-alignment-table td { padding: 8px 6px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Image Dynamics IDMAX10 V.4\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 10\" Sealed Wedge | Audiophile Alignment for the Image Dynamics IDMAX 10 Competition Subwoofer\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.39 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e1.28 ft³ Net (Audiophile)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e23.5\" × 14\" × 9.67\/14.77\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Image Dynamics IDMAX10 V.4 in an Audiophile-Tuned Sealed Cabinet\u003c\/h2\u003e\n    \u003cp\u003eThe Image Dynamics IDMAX10 V.4 is a competition-grade 10-inch subwoofer engineered for sound quality competitors and audiophile daily-driver builds. Pressed paper pulp cone with glass fiber reinforcement, aluminum neck joint for structural integrity under sustained excursion, oversized motor structure, Nomex spider suspension for thermal survival, parabolic foam surround, flat-wound high-temperature voice coil, heavy-duty cast aluminum frame, and Image Dynamics' bolt-on field-replaceable cone assembly (16 screws, no glue, alignment shims included) that turns a blown cone into a fifteen-minute rebuild rather than a lost driver. 500 watts RMS continuous power handling, 19.5mm one-way linear excursion, dual voice coil in either 2-ohm or 4-ohm configuration. The IDMAX platform is what Image Dynamics designed for buyers who care about accuracy first and output second, and it is the driver family that has been placing at IASCA and MECA sound quality events for years.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 10 for Image Dynamics IDMAX 10 is engineered to Image Dynamics' Audiophile-tier sealed alignment. 1.39 cubic feet gross internal volume minus the IDMAX10's 0.11 cubic foot total driver displacement lands at 1.28 cubic feet net. This is not the compact-cabinet alignment. This is the alignment the IDMAX platform was designed to sing in.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e1.39 cubic feet gross = 1.28 cubic feet net after the IDMAX10 V.4's 0.11 cubic foot total driver displacement. Sized slightly above Image Dynamics' 1.25 cu ft Audiophile-tier sealed spec for the IDMAX10 platform. The D2 variant lands near a Butterworth alignment (Qtc ~0.77) with F3 around 37 Hz sealed. The D4 variant runs slightly overdamped (Qtc ~0.67) with F3 around 43 Hz and tighter transient response. Both alignments trade cabinet size for the extended low-end and controlled character the IDMAX platform was engineered to deliver.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry, applied here to a driver that rewards the trunk-load approach with the extension and control an audiophile alignment can deliver.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (9.67\" at the top, 14.77\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The IDMAX10's 7.68\" mount depth is accommodated by the top face without pushing the driver into cabin space.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (23.5\" wide × 14\" tall) is where the IDMAX10 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. Classic SQ trunk-load pattern applied to a competition-grade audiophile driver.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading Complements Audiophile Alignment\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less-localized presentation than direct-firing setups. The 1.28 cu ft net audiophile alignment complements this by delivering extended low-end that the trunk cavity translates into deep, controlled cabin response.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLarger Cabinet Than Any Other 10\" PO Wedge\u003c\/h4\u003e\n        \u003cp\u003e23.5\" wide by 14\" tall by 9.67-14.77\" deep. Larger than the RF T1 10\" wedge (20.75W x 13.5H) and every JL 10\" wedge in the line. The larger footprint is not incidental — it is the price of the audiophile alignment. If you want the compact-cabinet approach, choose a different driver. If you want the IDMAX in its audiophile home, this is the cabinet it lives in.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eAudiophile Alignment Explained | Why 1.28 Cubic Feet Net\u003c\/h2\u003e\n    \u003cp\u003eImage Dynamics publishes multiple sealed alignments for the IDMAX10 platform in the V.4 series manual — a compact alignment (roughly 0.75 cu ft) for maximum power handling in constrained installs, a universal alignment (roughly 1.0 cu ft) for balanced performance, and the audiophile alignment (roughly 1.25 cu ft) for maximum extension and lowest Qtc. Each alignment produces a different acoustic character with different power handling ceilings and different F3 targets. The Performance Optimized Wedge Sealed 10 is engineered to the audiophile alignment.\u003c\/p\u003e\n    \u003ch3\u003ePredicted Alignment at 1.28 Cubic Feet Net\u003c\/h3\u003e\n    \u003cp\u003eUsing Image Dynamics' published Thiele-Small parameters for the IDMAX10 V.4, calculated using the same formulas as the Audio Intensity Sealed Box Calculator, here is what the audiophile alignment produces for each impedance variant:\u003c\/p\u003e\n    \u003ctable class=\"po-alignment-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eVariant\u003c\/th\u003e\n          \u003cth\u003eQts\u003c\/th\u003e\n          \u003cth\u003eVas\u003c\/th\u003e\n          \u003cth\u003eQtc @ 1.28 ft³\u003c\/th\u003e\n          \u003cth\u003eFc\u003c\/th\u003e\n          \u003cth\u003eF3\u003c\/th\u003e\n          \u003cth\u003eCharacter\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"po-highlight-row\"\u003e\n          \u003ctd\u003eIDMAX10 V.4 D2\u003c\/td\u003e\n          \u003ctd\u003e0.50\u003c\/td\u003e\n          \u003ctd\u003e49.44 L\u003c\/td\u003e\n          \u003ctd\u003e0.77\u003c\/td\u003e\n          \u003ctd\u003e40 Hz\u003c\/td\u003e\n          \u003ctd\u003e~37 Hz\u003c\/td\u003e\n          \u003ctd\u003eButterworth-adjacent, deepest extension\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eIDMAX10 V.4 D4\u003c\/td\u003e\n          \u003ctd\u003e0.44\u003c\/td\u003e\n          \u003ctd\u003e48.35 L\u003c\/td\u003e\n          \u003ctd\u003e0.67\u003c\/td\u003e\n          \u003ctd\u003e41 Hz\u003c\/td\u003e\n          \u003ctd\u003e~43 Hz\u003c\/td\u003e\n          \u003ctd\u003eOverdamped, tightest transient response\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003cp\u003eBoth alignments are legitimately audiophile. The D2 sits near classic Butterworth (Qtc 0.707) with a slight lift and the deepest F3 available from a 10\" driver in a sealed cabinet. The D4 sits below Butterworth for a smoother, more damped rolloff that pairs well with sound-quality competition scoring that rewards transient accuracy. Neither alignment is the punchy midbass-lift character produced by compact cabinets — the IDMAX10 in a compact alignment is a different animal entirely. This cabinet is engineered for the audiophile side of the driver's capabilities.\u003c\/p\u003e\n    \u003ch3\u003eWhat Audiophile Alignment Trades Against\u003c\/h3\u003e\n    \u003cp\u003eThe extended low-end and controlled Qtc come with real trade-offs worth understanding before you order. Cabinet size is significantly larger than a compact 10\" enclosure — 23.5\" wide, 14\" tall, taking up meaningful trunk space. Power handling in a larger cabinet is lower than in a compact alignment because reduced air-spring loading allows greater cone excursion at the same input power — plan for 400-500 watts RMS input rather than pushing the driver's 500W thermal limit continuously. Efficiency is slightly lower — cabin gain and vehicle acoustics matter more when the cabinet does not add its own peak. The audiophile alignment is the right answer when accuracy and extension matter more than compact fitment or maximum output. It is the wrong answer when you need a punchy midbass-forward SPL box in a small space.\u003c\/p\u003e\n    \u003ch3\u003eD2 vs D4 Selection\u003c\/h3\u003e\n    \u003cp\u003eThe D2 wired in parallel presents a 1-ohm load — pair it with a modern class D monoblock stable at 1 ohm delivering 400-500 watts RMS. The D4 wired in parallel presents a 2-ohm load — pair it with a class D monoblock delivering 400-500 watts RMS at 2 ohms. Both variants fit this cabinet identically since the physical dimensions and displacement are the same across the DVC configurations.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry and Driver Fitment\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the IDMAX10 V.4's exact 9.65\" cutout specification. The IDMAX10's 7.68\" mounting depth fits inside the cabinet with proper clearance — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from approximately 8.7\" at the top baffle edge to 13.27\" at the bottom (after accounting for 3\/4\" MDF panel thickness), with the driver's mounting position at cabinet center providing over 11.4\" of clearance behind the motor. Comfortable room for the IDMAX10's oversized motor structure and heavy backplate.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Built for Sustained IDMAX Operation\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Panel resonance at the low frequencies the IDMAX10 audiophile alignment reaches would color the character of a driver chosen specifically for accuracy. Langboard's density stops the panels from adding their own signature to the driver's output.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints, no compromise on structural integrity under sustained low-frequency loading.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eInternal Bracing\u003c\/h4\u003e\n        \u003cp\u003ePerimeter cross-brace between the two large opposing faces adds panel stiffness at the wall spans most likely to flex under IDMAX-level cone motion. Standard on this cabinet as delivered.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side. Handles the IDMAX10's 500W RMS power delivery.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the 1.28 cu ft net audiophile alignment target and the mating angles between the top and bottom edges. Internal volume is verified on every unit to ensure the audiophile-alignment target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eEnclosure Only\u003c\/h3\u003e\n    \u003cp\u003eThis listing is for the enclosure only. Drop in your existing Image Dynamics IDMAX10 V.4 D2 (Dual 2-ohm) or IDMAX10 V.4 D4 (Dual 4-ohm) subwoofer — the cabinet fits both variants identically. Source your driver from Image Dynamics or an authorized ID dealer.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Image Dynamics IDMAX10 V.4 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe IDMAX10 V.4 is a dual-voice-coil driver available in two impedance configurations. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware accepting both spade and banana terminations.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eIDMAX10 V.4 D2 (Dual 2-ohm):\u003c\/strong\u003e Parallel wiring presents a 1-ohm load — ideal for modern class D monoblocks stable at 1 ohm delivering 400-500 watts RMS at that impedance. Series wiring presents 4 ohms if your amplifier is not 1-ohm stable, or in dual-driver installs where paralleling two series-wired drivers at the amp returns to 2 ohms total.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eIDMAX10 V.4 D4 (Dual 4-ohm):\u003c\/strong\u003e Parallel wiring presents a 2-ohm load — compatible with essentially all class D monoblocks. Series wiring presents 8 ohms for amplifiers that prefer higher impedance loads. The D4 is generally the easier match for standard mainstream amplifiers.\u003c\/p\u003e\n    \u003cp\u003eThe IDMAX10 is rated for 500 watts RMS continuous. In the audiophile 1.28 cu ft alignment, the reduced air-spring loading means the driver reaches its mechanical excursion limit before its thermal limit — plan for 400-500 watts RMS input from a well-regulated class D monoblock rather than pushing continuous operation at or above the thermal rating. Set your amplifier's active low-pass filter between 70 and 90 Hz for musical accuracy in a full-range system. Subsonic filter around 20-25 Hz to protect the mechanical suspension at frequencies well below the alignment's Fc.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects on the enclosure. Your Image Dynamics IDMAX10 V.4 subwoofer is covered by Image Dynamics' 1-year manufacturer warranty when purchased through an authorized ID dealer. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles, and Audio Intensity's owner has judged IASCA National and MECA World SQ competitions since 2019.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eThe IDMAX10 in Its Audiophile Home\u003c\/h2\u003e\n    \u003cp\u003e1.28 cubic feet net — just above Image Dynamics' 1.25 cu ft audiophile-tier sealed alignment for the IDMAX10 V.4 platform. Butterworth-adjacent extension on the D2, controlled overdamped alignment on the D4, both trading cabinet size for the extended low-end and accuracy the IDMAX platform was engineered to deliver. Competition-grade construction, built to order in Tennessee.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44529575821401,"sku":"PO 10-S W IDMAX","price":309.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO10-SWIDMAXFront.png?v=1786847771"},{"product_id":"performance-optimized-wedge-sealed-12-audiophile-enclosure-image-dynamics-idmax12-v-4","title":"Performance Optimized Wedge Sealed 12\" Audiophile Enclosure | Image Dynamics IDMAX12 V.4","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; 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}\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-alignment-table { width: 100%; border-collapse: collapse; margin: 20px 0; background: #ffffff; }\n  .po-alignment-table th { background: #0e7490; color: white; padding: 12px; text-align: left; font-weight: 600; font-size: 0.95em; }\n  .po-alignment-table td { padding: 12px; border-bottom: 1px solid #e2e8f0; font-size: 0.98em; color: #334155; }\n  .po-alignment-table tr.po-highlight-row { background: #f0f9ff; }\n  .po-alignment-table tr.po-highlight-row td { font-weight: 600; color: #0e7490; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n    .po-alignment-table { font-size: 0.85em; }\n    .po-alignment-table th, .po-alignment-table td { padding: 8px 6px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Image Dynamics IDMAX12 V.4\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 12\" Sealed Wedge | Audiophile Alignment for the Image Dynamics IDMAX 12 Competition Subwoofer\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e1.94 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e1.80 ft³ Net (Audiophile)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e27.35\" × 15\" × 10.3\/15.77\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Image Dynamics IDMAX12 V.4 in an Audiophile-Tuned Sealed Cabinet\u003c\/h2\u003e\n    \u003cp\u003eThe Image Dynamics IDMAX12 V.4 is a competition-grade 12-inch subwoofer engineered for sound quality competitors and audiophile daily-driver builds. Glass fiber reinforced pressed paper pulp cone, aluminum neck joint for structural integrity under sustained excursion, oversized motor structure, Nomex spider suspension for thermal survival, parabolic Santoprene surround, American-made flat-wound extended voice coil, heavy-duty cast aluminum frame, and Image Dynamics' bolt-on field-replaceable cone assembly (16 screws, no glue, alignment shims included) that turns a blown cone into a fifteen-minute rebuild rather than a lost driver. 500 watts RMS continuous power handling, 19.5mm one-way linear excursion, 545 cm² of piston area, 2-inch voice coil, dual voice coil in either 2-ohm or 4-ohm configuration. The IDMAX12 is the middle driver in Image Dynamics' three-size IDMAX platform and the size most sound quality competitors choose for the balance of extension, output, and cabinet manageability.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 12 for Image Dynamics IDMAX 12 is engineered to Image Dynamics' Audiophile-tier sealed alignment. 1.94 cubic feet gross internal volume minus the IDMAX12's 0.14 cubic foot total driver displacement lands at 1.80 cubic feet net — exact match to Image Dynamics' published Audiophile spec of 1.8 cu ft for the IDMAX12 platform. This is not the compact-cabinet alignment. This is where the IDMAX12 was designed to live.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e1.94 cubic feet gross = 1.80 cubic feet net after the IDMAX12 V.4's 0.14 cubic foot total driver displacement. Exact match to Image Dynamics' Audiophile-tier sealed spec of 1.8 cu ft. The D2 variant lands near Butterworth (Qtc ~0.83) with F3 around 37 Hz sealed. The D4 variant runs with a slight lift (Qtc ~0.90) and reaches F3 near 36 Hz. Both alignments extend well below what a 12\" driver typically reaches in a car audio sealed enclosure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry, applied here to a driver that rewards the trunk-load approach with the extension and control an audiophile alignment can deliver.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (10.3\" at the top, 15.77\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The IDMAX12's 8.15\" mount depth is accommodated by the top face without pushing the driver into cabin space.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (27.35\" wide × 15\" tall) is where the IDMAX12 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. Classic SQ trunk-load pattern applied to a competition-grade audiophile driver.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading Complements Audiophile Alignment\u003c\/h4\u003e\n        \u003cp\u003eFiring the woofer into the trunk cavity uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries — a smoother, less-localized presentation than direct-firing setups. The 1.80 cu ft net audiophile alignment complements this by delivering extended low-end that the trunk cavity translates into deep, controlled cabin response.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eWidest Cabinet in the 10-12\" PO Wedge Line\u003c\/h4\u003e\n        \u003cp\u003e27.35\" wide by 15\" tall by 10.3-15.77\" deep. Genuinely large. This is the widest cabinet in the Performance Optimized Wedge line short of the 15\" builds — wider than every 10\" and 12\" wedge in the catalog. The larger footprint is not incidental — it is the price of the audiophile alignment. Verify trunk clearance before ordering.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eAudiophile Alignment Explained | Why 1.80 Cubic Feet Net\u003c\/h2\u003e\n    \u003cp\u003eImage Dynamics publishes three sealed alignments for the IDMAX12 platform in the V.4 series manual — a Compact alignment (0.65 cu ft) for maximum power handling in constrained installs, a Universal alignment (1.0 cu ft) for balanced performance, and the Audiophile alignment (1.8 cu ft) for maximum extension and lowest Qtc. Each alignment produces a different acoustic character with different power handling ceilings and different F3 targets. The Performance Optimized Wedge Sealed 12 is engineered to the Audiophile alignment target exactly.\u003c\/p\u003e\n    \u003ch3\u003ePredicted Alignment at 1.80 Cubic Feet Net\u003c\/h3\u003e\n    \u003cp\u003eUsing Image Dynamics' published Thiele-Small parameters for the IDMAX12 V.4, calculated using the same formulas as the Audio Intensity Sealed Box Calculator, here is what the Audiophile alignment produces for each impedance variant:\u003c\/p\u003e\n    \u003ctable class=\"po-alignment-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eVariant\u003c\/th\u003e\n          \u003cth\u003eQts\u003c\/th\u003e\n          \u003cth\u003eVas\u003c\/th\u003e\n          \u003cth\u003eQtc @ 1.80 ft³\u003c\/th\u003e\n          \u003cth\u003eFc\u003c\/th\u003e\n          \u003cth\u003eF3\u003c\/th\u003e\n          \u003cth\u003eCharacter\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"po-highlight-row\"\u003e\n          \u003ctd\u003eIDMAX12 V.4 D2\u003c\/td\u003e\n          \u003ctd\u003e0.52\u003c\/td\u003e\n          \u003ctd\u003e77.51 L\u003c\/td\u003e\n          \u003ctd\u003e0.83\u003c\/td\u003e\n          \u003ctd\u003e42 Hz\u003c\/td\u003e\n          \u003ctd\u003e~37 Hz\u003c\/td\u003e\n          \u003ctd\u003eButterworth-adjacent, flattest response\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eIDMAX12 V.4 D4\u003c\/td\u003e\n          \u003ctd\u003e0.58\u003c\/td\u003e\n          \u003ctd\u003e72.16 L\u003c\/td\u003e\n          \u003ctd\u003e0.90\u003c\/td\u003e\n          \u003ctd\u003e43 Hz\u003c\/td\u003e\n          \u003ctd\u003e~36 Hz\u003c\/td\u003e\n          \u003ctd\u003eSlight lift, warmer, similar F3\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003cp\u003eBoth alignments are legitimate audiophile territory. The D2 sits slightly above classic Butterworth (Qtc 0.707) for a controlled, accurate response with the flattest character available from an IDMAX in this alignment. The D4 runs modestly higher Qtc for a warmer character with a slight upper-bass lift, and interestingly reaches similar F3 to the D2 despite the higher Qtc — because the D4's slightly higher Fs is offset by the higher-Q resonance behavior. Neither variant produces the punchy midbass-forward character of a compact-cabinet alignment. This cabinet is built for the extended, controlled side of the IDMAX12's capabilities.\u003c\/p\u003e\n    \u003ch3\u003eD2 vs D4 Selection Note\u003c\/h3\u003e\n    \u003cp\u003eAn important point that differs from the IDMAX10 build: on the IDMAX12, the D4 runs a higher Qts than the D2 (0.58 vs 0.52), which produces the higher Qtc alignment. On the IDMAX10, the pattern was reversed (D4 Qts 0.44 was lower than D2 0.50). This means on the IDMAX12 the D2 is the flatter, more Butterworth-adjacent choice, while on the IDMAX10 the D4 was the tighter overdamped choice. If you are cross-shopping between the two sizes and want the flattest audiophile character in either, that means D4 on the 10\" or D2 on the 12\". If you want a slight warmer midbass lift, that means D2 on the 10\" or D4 on the 12\".\u003c\/p\u003e\n    \u003ch3\u003eWhat Audiophile Alignment Trades Against\u003c\/h3\u003e\n    \u003cp\u003eThe extended low-end and controlled Qtc come with real trade-offs worth understanding before you order. Cabinet size is significantly larger than a compact 12\" enclosure — 27.35\" wide, taking up meaningful trunk space. Power handling in a larger cabinet is lower than in a compact alignment because reduced air-spring loading allows greater cone excursion at the same input power — plan for 400-500 watts RMS input rather than pushing the driver's 500W thermal limit continuously. Efficiency is slightly lower — cabin gain and vehicle acoustics matter more when the cabinet does not add its own peak. The audiophile alignment is the right answer when accuracy and extension matter more than compact fitment or maximum output.\u003c\/p\u003e\n    \u003ch3\u003eImpedance and Amplifier Matching\u003c\/h3\u003e\n    \u003cp\u003eThe D2 wired in parallel presents a 1-ohm load — pair it with a modern class D monoblock stable at 1 ohm delivering 400-500 watts RMS. The D4 wired in parallel presents a 2-ohm load — pair it with a class D monoblock delivering 400-500 watts RMS at 2 ohms. Both variants fit this cabinet identically since the physical dimensions and displacement are the same across the DVC configurations.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry and Driver Fitment\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the IDMAX12 V.4's exact 11.02\" cutout specification. The IDMAX12's 8.15\" mounting depth fits inside the cabinet with proper clearance — internal depth from the vertical baffle to the interior of the angled seat-side face ranges from approximately 9.55\" at the top baffle edge to 15.02\" at the bottom (after accounting for 3\/4\" MDF panel thickness), with the driver's mounting position at cabinet center providing over 12.28\" of clearance behind the motor. Substantial room for the IDMAX12's large motor structure and heavy backplate.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Built for Sustained IDMAX Operation\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec — denser and more dimensionally stable than commodity MDF. Panel resonance at the low frequencies the IDMAX12 audiophile alignment reaches would color the character of a driver chosen specifically for accuracy. Langboard's density stops the panels from adding their own signature to the driver's output.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge cabinet fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls — no fasteners visible from outside, no exposed end grain at joints, no compromise on structural integrity under sustained low-frequency loading.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eInternal Bracing at Larger Cabinet Span\u003c\/h4\u003e\n        \u003cp\u003eThe 27.35\" wide baffle span requires internal cross-bracing to prevent flex under IDMAX-level cone motion. Perimeter cross-brace ties the vertical baffle to the angled seat-side panel at the mid-height. Standard on this cabinet as delivered.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 12-gauge OFC inside the cabinet, with stainless steel hardware accepting both spade and banana terminations on the input side. Handles the IDMAX12's 500W RMS power delivery.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the 1.80 cu ft net audiophile alignment target and the mating angles between the top and bottom edges. Internal volume is verified on every unit to ensure the audiophile-alignment target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eEnclosure Only\u003c\/h3\u003e\n    \u003cp\u003eThis listing is for the enclosure only. Drop in your existing Image Dynamics IDMAX12 V.4 D2 (Dual 2-ohm) or IDMAX12 V.4 D4 (Dual 4-ohm) subwoofer — the cabinet fits both variants identically. Source your driver from Image Dynamics or an authorized ID dealer.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Image Dynamics IDMAX12 V.4 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe IDMAX12 V.4 is a dual-voice-coil driver available in two impedance configurations. The pre-wired terminal cup accepts the two-conductor connection via 12-gauge OFC, with stainless steel input hardware accepting both spade and banana terminations.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eIDMAX12 V.4 D2 (Dual 2-ohm):\u003c\/strong\u003e Parallel wiring presents a 1-ohm load — ideal for modern class D monoblocks stable at 1 ohm delivering 400-500 watts RMS at that impedance. Series wiring presents 4 ohms if your amplifier is not 1-ohm stable. Note that the IDMAX12 D2 has Re of 1.65 ohms per coil, giving a combined parallel load closer to 0.83 ohms measured — verify your amplifier is rated for sub-1-ohm operation before wiring parallel.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eIDMAX12 V.4 D4 (Dual 4-ohm):\u003c\/strong\u003e Parallel wiring presents a 2-ohm load — compatible with essentially all class D monoblocks. Series wiring presents 8 ohms for amplifiers that prefer higher impedance loads. The D4 is generally the easier match for standard mainstream amplifiers, especially given the D2's sub-1-ohm parallel measured impedance.\u003c\/p\u003e\n    \u003cp\u003eThe IDMAX12 is rated for 500 watts RMS continuous. In the audiophile 1.80 cu ft alignment, the reduced air-spring loading means the driver reaches its mechanical excursion limit before its thermal limit — plan for 400-500 watts RMS input from a well-regulated class D monoblock rather than pushing continuous operation at or above the thermal rating. Set your amplifier's active low-pass filter between 70 and 90 Hz for musical accuracy in a full-range system. Subsonic filter around 20-25 Hz to protect the mechanical suspension at frequencies well below the alignment's Fc.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 2 to 5 business day assembly window before the box ships. No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects on the enclosure. Your Image Dynamics IDMAX12 V.4 subwoofer is covered by Image Dynamics' 1-year manufacturer warranty when purchased through an authorized ID dealer. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles, and Audio Intensity's owner has judged IASCA National and MECA World SQ competitions since 2019.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eThe IDMAX12 in Its Audiophile Home\u003c\/h2\u003e\n    \u003cp\u003e1.80 cubic feet net — Image Dynamics' Audiophile-tier sealed alignment for the IDMAX12 V.4, delivered exactly. Butterworth-adjacent extension on the D2, warmer lifted character on the D4, both reaching F3 near 36-37 Hz sealed — extension that most 12\" drivers can only produce in ported cabinets. Competition-grade construction, built to order in Tennessee.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44529670553689,"sku":"PO 12-S W IDMAX","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO12-SWIDMAXFront.png?v=1786847828"},{"product_id":"performance-optimized-wedge-sealed-15-audiophile-enclosure-image-dynamics-idmax15-v-4","title":"Performance Optimized Wedge Sealed 15\" Audiophile Enclosure | Image Dynamics IDMAX15 V.4","description":"\u003cstyle\u003e\n  .po-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .po-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-hero .po-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; 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}\n  .po-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #06b6d4; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #0e7490; font-size: 1.15em; font-weight: 700; margin: 0 0 12px 0; text-transform: uppercase; letter-spacing: 1px; }\n  .po-card p { font-size: 0.98em; color: #475569; margin: 0; }\n  .po-highlight { background: #f0f9ff; border-left: 4px solid #06b6d4; padding: 25px 30px; margin: 30px 0; border-radius: 4px; }\n  .po-highlight p { color: #1e293b; margin: 0; font-size: 1.05em; }\n  .po-alignment-table { width: 100%; border-collapse: collapse; margin: 20px 0; background: #ffffff; }\n  .po-alignment-table th { background: #0e7490; color: white; padding: 12px; text-align: left; font-weight: 600; font-size: 0.95em; }\n  .po-alignment-table td { padding: 12px; border-bottom: 1px solid #e2e8f0; font-size: 0.98em; color: #334155; }\n  .po-alignment-table tr.po-highlight-row { background: #f0f9ff; }\n  .po-alignment-table tr.po-highlight-row td { font-weight: 600; color: #0e7490; }\n  .po-cta { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .po-cta h2 { font-size: 2.2em; font-weight: 700; margin: 0 0 20px 0; color: white; border: none; padding: 0; }\n  .po-cta p { font-size: 1.15em; opacity: 0.92; max-width: 800px; margin: 0 auto 20px auto; color: white; }\n  @media (max-width: 768px) {\n    .po-hero { padding: 40px 20px; }\n    .po-hero .po-title { font-size: 1.8em; }\n    .po-section { padding: 30px 20px; }\n    .po-section h2 { font-size: 1.6em; }\n    .po-grid { grid-template-columns: 1fr; }\n    .po-cta { padding: 40px 20px; }\n    .po-cta h2 { font-size: 1.6em; }\n    .po-alignment-table { font-size: 0.85em; }\n    .po-alignment-table th, .po-alignment-table td { padding: 8px 6px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"po-wrap\"\u003e\n\n  \u003cdiv class=\"po-hero\"\u003e\n    \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Image Dynamics IDMAX15 V.4\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003eSingle 15\" Sealed Wedge | Audiophile Alignment for the Image Dynamics IDMAX 15 Competition Subwoofer\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e3.26 ft³ Gross\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e3.00 ft³ Net (Audiophile)\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e30.6\" × 18\" × 11.92\/18.47\"\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eThe Image Dynamics IDMAX15 V.4 in an Audiophile-Tuned Sealed Cabinet\u003c\/h2\u003e\n    \u003cp\u003eThe Image Dynamics IDMAX15 V.4 is the largest driver in Image Dynamics' three-size IDMAX platform and the flagship of Image Dynamics' competition-grade lineup. Glass fiber reinforced pressed paper pulp cone, aluminum neck joint for structural integrity under sustained excursion, 575-ounce oversized motor structure, 60mm BASV voice coil former, Nomex spider suspension for thermal survival, parabolic EPDM rubber surround, American-made flat-wound extended voice coil, 2.5-inch voice coil diameter, heavy-duty cast aluminum frame, and Image Dynamics' bolt-on field-replaceable cone assembly (16 screws, no glue, alignment shims included) that turns a blown cone into a rebuild rather than a lost driver. 600 watts RMS continuous power handling, 1200 watts peak, 22mm one-way linear excursion, 934.79 cm² of piston area, dual voice coil in either 2-ohm or 4-ohm configuration. The IDMAX15 is the driver competitors run when the vehicle is large enough to accommodate a serious cabinet and the goal is maximum output paired with the IDMAX platform's SQ-scoring reputation.\u003c\/p\u003e\n    \u003cp\u003eThe Performance Optimized Wedge Sealed 15 for Image Dynamics IDMAX 15 is engineered to Image Dynamics' Audiophile-tier sealed alignment. 3.26 cubic feet gross internal volume minus the IDMAX15's 0.26 cubic foot total driver displacement lands at exactly 3.00 cubic feet net — direct match to Image Dynamics' published Audiophile sealed spec of 3.0 cu ft for the IDMAX15 platform. This is a serious cabinet for a serious driver. Not a compact-alignment shortcut.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e3.26 cubic feet gross = 3.00 cubic feet net after the IDMAX15 V.4's 0.26 cubic foot total driver displacement. Exact match to Image Dynamics' Audiophile-tier sealed spec of 3.0 cu ft. The D2 variant lands essentially at Butterworth (Qtc ~0.72) with F3 near 44 Hz sealed. The D4 variant runs with a slight lift (Qtc ~0.76) with F3 near 42 Hz. Note that the IDMAX15 reaches shallower F3 sealed than the smaller IDMAX 10 and 12 in their respective Audiophile alignments — that is a consequence of the IDMAX15's higher 30 Hz Fs. For deep sealed extension the smaller IDMAX drivers actually reach lower F3. The IDMAX15 delivers maximum output and cone area sealed; deep F3 extension is the province of the ported Audiophile alignment (4.0 cu ft, F3 27 Hz).\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n    \u003cp\u003eThis wedge is not a front-firing enclosure. The woofer is mounted on the vertical face that sits at the back of the box, closest to the trunk lid, and fires rearward into the trunk cavity. The angled face is on the opposite side of the box — the side that faces the front of the vehicle — and tucks against the rear seat back. Two different problems solved by one geometry, scaled here for the largest driver in the IDMAX platform and the largest cabinet in the Performance Optimized Wedge line.\u003c\/p\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eSeat-Side Face Matches Seat Lean\u003c\/h4\u003e\n        \u003cp\u003eMost factory rear seat backs lean roughly 20 degrees back from vertical. The angled face of this wedge (11.92\" at the top, 18.47\" at the bottom) matches that lean, tucking against the seat back with no wasted gap. The IDMAX15's 10.40\" mount depth is accommodated by the top face without pushing the driver into cabin space.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk-Lid-Side Face Fires the Woofer\u003c\/h4\u003e\n        \u003cp\u003eThe vertical face on the opposite side of the wedge (30.6\" wide × 18\" tall) is where the IDMAX15 mounts. The driver fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. Classic SQ trunk-load pattern applied to the largest competition-grade audiophile driver Image Dynamics makes.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eTrunk Cavity Loading at IDMAX15 Scale\u003c\/h4\u003e\n        \u003cp\u003eFiring the IDMAX15's 934 cm² of cone area into the trunk cavity uses the trunk itself as an extension of the acoustic system. Low frequencies transmit into the passenger cabin through the rear deck, seat back, and cabin boundaries with the smoother, less-localized presentation trunk-load provides. The 3.0 cu ft audiophile alignment complements this with maximum output capability paired with musical Butterworth-adjacent character.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLargest Cabinet in the Entire PO Wedge Line\u003c\/h4\u003e\n        \u003cp\u003e30.6\" wide by 18\" tall by 11.92-18.47\" deep. This is by measurable margin the largest cabinet in the Performance Optimized Wedge line — wider, taller, and deeper than the RF T1D215 15\" wedge and the P3D2-15 15\" wedge. If your vehicle cannot accommodate approximately 31\" of usable width and 19\" of usable trunk-floor depth, this is not your build. Confirm trunk clearance before ordering.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eAudiophile Alignment Explained | Why 3.0 Cubic Feet Net\u003c\/h2\u003e\n    \u003cp\u003eImage Dynamics publishes three sealed alignments for the IDMAX15 platform in the V.4 series manual — a Compact alignment (approximately 1.5 cu ft) for maximum power handling in constrained installs, a Universal alignment (approximately 2.0 cu ft) for balanced performance, and the Audiophile alignment (3.0 cu ft) for maximum extension and lowest Qtc in a sealed cabinet. Each alignment produces a different acoustic character with different power handling ceilings and different F3 targets. The Performance Optimized Wedge Sealed 15 is engineered to the Audiophile sealed alignment exactly.\u003c\/p\u003e\n    \u003ch3\u003ePredicted Alignment at 3.00 Cubic Feet Net\u003c\/h3\u003e\n    \u003cp\u003eUsing Image Dynamics' published Thiele-Small parameters for the IDMAX15 V.4, calculated using the same formulas as the Audio Intensity Sealed Box Calculator, here is what the Audiophile alignment produces for each impedance variant:\u003c\/p\u003e\n    \u003ctable class=\"po-alignment-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eVariant\u003c\/th\u003e\n          \u003cth\u003eQts\u003c\/th\u003e\n          \u003cth\u003eVas\u003c\/th\u003e\n          \u003cth\u003eQtc @ 3.00 ft³\u003c\/th\u003e\n          \u003cth\u003eFc\u003c\/th\u003e\n          \u003cth\u003eF3\u003c\/th\u003e\n          \u003cth\u003eCharacter\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"po-highlight-row\"\u003e\n          \u003ctd\u003eIDMAX15 V.4 D2\u003c\/td\u003e\n          \u003ctd\u003e0.48\u003c\/td\u003e\n          \u003ctd\u003e104.03 L\u003c\/td\u003e\n          \u003ctd\u003e0.72\u003c\/td\u003e\n          \u003ctd\u003e45 Hz\u003c\/td\u003e\n          \u003ctd\u003e~44 Hz\u003c\/td\u003e\n          \u003ctd\u003eEssentially Butterworth, controlled\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eIDMAX15 V.4 D4\u003c\/td\u003e\n          \u003ctd\u003e0.50\u003c\/td\u003e\n          \u003ctd\u003e109.03 L\u003c\/td\u003e\n          \u003ctd\u003e0.76\u003c\/td\u003e\n          \u003ctd\u003e45 Hz\u003c\/td\u003e\n          \u003ctd\u003e~42 Hz\u003c\/td\u003e\n          \u003ctd\u003eSlight lift, warmer, marginally deeper F3\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003cp\u003eBoth alignments sit close to classic Butterworth (Qtc 0.707). The D2 produces the flattest, most controlled response the IDMAX15 can deliver in a sealed cabinet. The D4 produces a marginally warmer character with the slight upper-bass lift Qts 0.50 provides at this alignment. Neither variant produces the punchy midbass-forward character of a compact sealed alignment or the deep tuned extension of a properly ported cabinet. What this sealed Audiophile alignment delivers is transient accuracy, musical control, and maximum output capability from the IDMAX platform in a sealed enclosure. The character has kept the IDMAX15 competitive in IASCA and MECA sound quality events for over a decade.\u003c\/p\u003e\n    \u003ch3\u003eSealed vs Ported for the IDMAX15\u003c\/h3\u003e\n    \u003cp\u003eAn important honest note on the IDMAX15 specifically: because the driver has a relatively high 30 Hz Fs (versus 27 Hz on the IDMAX10 and 26 Hz on the IDMAX12), sealed F3 stays in the low-to-mid 40s even at the Audiophile 3.0 cu ft alignment. The smaller IDMAX drivers actually reach deeper F3 sealed than the 15. For deep extension below 30 Hz, the IDMAX15 wants a ported alignment — specifically Image Dynamics' Audiophile ported spec of 4.0 cu ft tuned to 27 Hz, which reaches F3 at 27 Hz. That is the configuration that wins IASCA and MECA points on deep-bass-scored tracks. This sealed cabinet is the right answer for musical accuracy, transient control, cabinet manageability compared to a 4.0 cu ft ported enclosure, and installations where the driver's output paired with sealed's control matters more than reaching F3 in the 20s.\u003c\/p\u003e\n    \u003ch3\u003eD2 vs D4 Selection\u003c\/h3\u003e\n    \u003cp\u003eThe IDMAX15 D2 and D4 have very similar Qts values (0.48 vs 0.50), producing nearly identical Qtc alignments in this cabinet. The character difference is subtle — much more subtle than the D2\/D4 differences on the IDMAX12 or IDMAX10. For the IDMAX15, the primary D2\/D4 selection driver is impedance compatibility with your amplifier rather than character preference. Read the D2 impedance warning in the wiring section carefully before choosing the D2.\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry and Driver Fitment\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is cut to the IDMAX15 V.4's exact 14.80\" cutout specification. The IDMAX15's 10.40\" mounting depth is the deepest of any driver in the Performance Optimized Wedge line. Internal cabinet clearance behind the driver at cabinet center is approximately 4.05 inches (measured from the vertical baffle interior to the interior of the angled seat-side face at driver-center height, after accounting for 3\/4\" MDF panel thickness). Adequate room for the IDMAX15's 575-ounce motor structure and 60mm voice coil former assembly.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003ePerformance Series Construction, Built for IDMAX15-Scale Operation\u003c\/h2\u003e\n    \u003cdiv class=\"po-grid\"\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eLangboard Elite MDF\u003c\/h4\u003e\n        \u003cp\u003ePremium 3\/4\" MDF panels milled to documented spec. At the low frequencies and high cone motion the IDMAX15 audiophile alignment produces, panel resonance would color a driver chosen specifically for accuracy. Langboard's density and dimensional stability stop the cabinet from adding its own signature to what the driver delivers.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eV-Groove and Dado Joinery\u003c\/h4\u003e\n        \u003cp\u003eCNC-cut V-grooves at every panel intersection let the wedge fold into its angled shape with maximum glue surface. Dado joints lock the vertical woofer baffle and the angled seat-side panel into the side walls. No fasteners visible from outside, no exposed end grain, no compromise on structural integrity under sustained IDMAX-scale cone motion.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eHeavy Internal Bracing at 30.6\" Baffle Span\u003c\/h4\u003e\n        \u003cp\u003eThe 30.6\" wide baffle span requires substantial internal cross-bracing to prevent flex under IDMAX15-scale cone motion. Dual perimeter cross-braces tie the vertical baffle to the angled seat-side panel at the third-points of the baffle height. Standard on this cabinet as delivered.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003ePre-Wired Terminal Cup, Uprated Gauge\u003c\/h4\u003e\n        \u003cp\u003eProline X ABS\/carbon fiber composite terminal cup, pre-wired with 10-gauge OFC inside the cabinet (upgraded from the standard 12-gauge on smaller PO Wedge builds to handle the IDMAX15's higher current draw), with stainless steel hardware accepting both spade and banana terminations on the input side. Handles the IDMAX15's 600W RMS continuous power delivery with headroom.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eEvery panel is cut on ShopSabre CNC routers in our Tullahoma, TN facility. The angled seat-side panel requires precise CNC compound cuts to hit both the 3.0 cu ft net Audiophile alignment target and the mating angles between the top and bottom edges. Internal volume is verified on every unit to ensure the Audiophile alignment target is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWeight and Installation Notes\u003c\/h2\u003e\n    \u003cp\u003eThis cabinet is genuinely heavy. The IDMAX15 driver itself is 44 pounds. The empty cabinet weighs approximately 65 pounds in Langboard MDF at this size. Loaded system weight is approximately 109 pounds. This is a two-person install. Standard parcel shipping via UPS ground is typically capped at 150 pounds per package but oversize surcharges apply — expect either freight shipping or heavy-parcel handling depending on your delivery location. Confirm your vehicle's trunk load capacity and the physical clearance to get the loaded cabinet through the trunk opening before ordering.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n    \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e is the standard durable wrap, matched to most factory trunk and cargo-area carpet tones. \u003cstrong\u003ePlush Black\u003c\/strong\u003e (+$10) is a deeper, more luxurious nap that pairs well with blacked-out interiors and show builds.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose \u003cstrong\u003eBlack, Blue, Red, or White\u003c\/strong\u003e for the baffle insert to match your build. Or skip the insert entirely (-$40) for a clean, understated look. The insert is purely cosmetic — performance is identical across colors.\u003c\/p\u003e\n    \u003ch3\u003eEnclosure Only\u003c\/h3\u003e\n    \u003cp\u003eThis listing is for the enclosure only. Drop in your existing Image Dynamics IDMAX15 V.4 D2 (Dual 2-ohm) or IDMAX15 V.4 D4 (Dual 4-ohm) subwoofer — the cabinet fits both variants identically. Source your driver from Image Dynamics or an authorized ID dealer.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Image Dynamics IDMAX15 V.4 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe IDMAX15 V.4 is a dual-voice-coil driver available in two impedance configurations. The pre-wired terminal cup accepts the two-conductor connection via 10-gauge OFC, with stainless steel input hardware accepting both spade and banana terminations.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eIDMAX15 V.4 D2 (Dual 2-ohm) — Read Before Wiring:\u003c\/strong\u003e The IDMAX15 D2 has DC resistance of 1.4 ohms per coil. Wired in parallel, the combined DC-measured load is approximately 0.7 ohms — meaningfully below the 1-ohm stable rating of nearly all modern class D monoblocks. This is not the 0.83-ohm parallel measurement on the IDMAX12 D2 that some amps tolerate; the IDMAX15 D2 parallel is a hard \"no\" for most amplifiers and will trigger protection modes on many designs marketed as 1-ohm stable. Wire the D2 in series for a 4-ohm load unless your amplifier is explicitly rated for sub-1-ohm operation and specifies minimum impedance below 1 ohm in the actual specification sheet (not the marketing materials). Series wiring at 4 ohms is compatible with essentially all high-quality class D monoblocks.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eIDMAX15 V.4 D4 (Dual 4-ohm):\u003c\/strong\u003e Parallel wiring presents a 2-ohm load — compatible with all 1-ohm stable class D monoblocks operating at 2 ohms. Series wiring presents 8 ohms. The D4 is the easier match for standard mainstream amplifiers, especially given the D2's problematic parallel measured impedance. Given the very similar Qtc alignments the D2 and D4 produce in this cabinet, the D4 is often the practical choice unless you have a specific amplifier rated for sub-1-ohm operation and want the D2's slightly deeper F3 in parallel.\u003c\/p\u003e\n    \u003cp\u003eThe IDMAX15 is rated for 600 watts RMS continuous with 1200 watts peak. In the Audiophile 3.0 cu ft alignment, reduced air-spring loading allows greater cone excursion at the same input power compared to a compact-cabinet alignment — plan for 500-800 watts RMS input from a well-regulated class D monoblock. The Rockford Fosgate T1000-1bdCP (1000W at 1 ohm) is the factory-scale amplifier match at 2 ohms with the D4 or 4 ohms with the D2 in series. Set your amplifier's active low-pass filter between 70 and 90 Hz for musical accuracy in a full-range system. Subsonic filter around 20-25 Hz to protect the mechanical suspension at frequencies well below the alignment's Fc.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n    \u003cp\u003eEvery Performance Optimized enclosure is CNC-cut, assembled, and finished in our Tullahoma, TN facility. Components are pulled from inventory after your order is placed, then bonded and wrapped — a 3 to 7 business day assembly window before this cabinet ships (longer than the smaller PO Wedge builds due to the additional MDF panels, bracing, and finish surface area). No pre-built inventory sitting in warehouses, warping in storage. Each unit is built to order.\u003c\/p\u003e\n    \u003cp\u003eBacked by a 1-year limited warranty against structural failure and hardware defects on the enclosure. Your Image Dynamics IDMAX15 V.4 subwoofer is covered by Image Dynamics' 1-year manufacturer warranty when purchased through an authorized ID dealer. Questions on fitment, wiring, or amplifier pairing? \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e — we install this gear ourselves, in our own vehicles, and Audio Intensity's owner has judged IASCA National and MECA World SQ competitions since 2019.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eThe IDMAX15 in Its Sealed Audiophile Home\u003c\/h2\u003e\n    \u003cp\u003e3.0 cubic feet net — Image Dynamics' Audiophile-tier sealed alignment for the IDMAX15 V.4, delivered exactly. Essentially Butterworth on the D2, slight lift on the D4, both reaching F3 in the low 40s sealed with the maximum output capability the IDMAX platform delivers. The largest cabinet in the Performance Optimized Wedge line, engineered for the largest driver Image Dynamics makes. Competition-grade construction, built to order in Tennessee.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44529788846169,"sku":"PO 15-S W IDMAX","price":429.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO15-SWIDMAXFront.png?v=1786928804"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-kicker-compq-15","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Kicker CompQ 15","description":"\u003cp\u003eThe \u003cstrong\u003ePerformance Optimized Wedge Sealed 15\" Enclosure for the Kicker CompQ 15\u003c\/strong\u003e is a musical sealed cabinet built specifically around Kicker's flagship round-cone subwoofer. It puts Kicker's most capable 15\" driver — the round-basket sibling of the legendary L7 — into a trunk-loading wedge that plays clean, deep, and articulate at any output level.\u003c\/p\u003e\u003cp\u003eThe Kicker CompQ 15 (51CWQ152 DVC 2Ω or 51CWQ154 DVC 4Ω) is a 1200-watt RMS subwoofer with 23.7mm of one-way Xmax, an 8\" motor, Ribbed Santoprene surround, and Kicker's BlueLace large-diameter progressive spider. It handles serious power and moves serious air, but with the compliant suspension and linear motor to work as a musical driver rather than a pure SPL brawler. This enclosure treats it as the former.\u003c\/p\u003e\u003cp\u003eThe 2.14 cubic foot net volume was chosen to hit a Qtc of 0.75, a musical sealed alignment that sits just above Butterworth for a slightly punchier midbass presentation while retaining excellent transient response and low group delay. Predicted F3 lands at 43 Hz. Bass is deep, tight, articulate, and carries a controlled sense of impact that plays well with cabin gain in most vehicles. This is the alignment SQ judges listen for when they hear a CompQ done right.\u003c\/p\u003e\u003cp\u003eConstruction is the full Proline X Performance Optimized platform: ShopSabre CNC-cut Langboard Elite MDF stack-fab layers, all four corners radiused 3\" viewed top-down, precision-milled magnet cavity for volume tuning and voice-coil cooling, perimeter cross-bracing, and a double-layer 1.5\" front baffle (two 3\/4\" MDF sheets bonded) for maximum baffle rigidity and driver isolation. Wedge geometry angles the cone rear-firing into the trunk at ~20° from vertical for optimum cabin loading. Terminal cup is our Proline X ABS\/carbon-fiber composite pre-wired with 10 gauge OFC.\u003c\/p\u003e\u003cp\u003eBring your own Kicker CompQ 15 — mount cutout is direct-fit for either the 51CWQ152 or 51CWQ154.\u003c\/p\u003e\u003cp\u003eManufactured in Tullahoma, Tennessee. 1-year enclosure warranty.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44532528152665,"sku":"PO 15-S W CompQ","price":369.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-micro-series-dual-15-sealed-enclosure-built-for-resonix-gus-15subwoofer-enclosuresproline-x-9360178.jpg?v=1786904631"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-kicker-compq-12","title":"Performance Optimized Wedge Sealed 12\" Enclosure | Kicker CompQ 12","description":"\u003cp\u003eThe \u003cstrong\u003ePerformance Optimized Wedge Sealed 12\" Enclosure for the Kicker CompQ 12\u003c\/strong\u003e is a punchy-musical sealed cabinet built specifically around Kicker's flagship round-cone 12\" subwoofer. It puts Kicker's most capable round 12\" driver — the round-basket sibling of the Solo-Baric L7 — into a trunk-loading wedge that plays clean, tight, and articulate at any output level.\u003c\/p\u003e\u003cp\u003eThe Kicker CompQ 12 (51CWQ122 DVC 2Ω or 51CWQ124 DVC 4Ω) is a 1000-watt RMS subwoofer with 23mm of one-way Xmax, a SoloKon polypropylene cone, ribbed Santoprene surround, cast aluminum basket, and Kicker's BlueLace progressive spider. It handles serious power and moves serious air, but with the compliant suspension and linear motor to work as a musical driver rather than a pure SPL brawler. This enclosure treats it as the former.\u003c\/p\u003e\u003cp\u003eThe 1.37 cubic foot net volume produces a Qtc of 0.79 based on bench-measured T\/S parameters, a punchy-musical sealed alignment that carries a slight midbass emphasis with excellent transient control. Predicted F3 lands at 46 Hz. Bass is tight, articulate, and plays well with cabin gain in most vehicles. This is the alignment SQ judges listen for when they hear a CompQ done right.\u003c\/p\u003e\u003cp\u003eConstruction is the full Proline X Performance Optimized platform: ShopSabre CNC-cut Langboard Elite MDF stack-fab layers, all four corners radiused 3\" viewed top-down, precision-milled magnet cavity for volume tuning and voice-coil cooling, perimeter cross-bracing, and a double-layer 1.5\" front baffle (two 3\/4\" MDF sheets bonded) for maximum baffle rigidity and driver isolation. Wedge geometry angles the cone rear-firing into the trunk at ~20° from vertical for optimum cabin loading. Terminal cup is our Proline X ABS\/carbon-fiber composite pre-wired with 12 gauge OFC.\u003c\/p\u003e\u003cp\u003eBring your own Kicker CompQ 12 — mount cutout is direct-fit for either the 51CWQ122 or 51CWQ124.\u003c\/p\u003e\u003cp\u003eManufactured in Tullahoma, Tennessee. 1-year enclosure warranty.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44532530217049,"sku":"PO 12-S W CompQ","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-micro-series-dual-15-sealed-enclosure-built-for-resonix-gus-15subwoofer-enclosuresproline-x-9360178_95e8b0ed-4150-4a1f-bde7-fe36caed1a63.jpg?v=1786904821"},{"product_id":"performance-optimized-wedge-sealed-10-enclosure-kicker-compq-10","title":"Performance Optimized Wedge Sealed 10\" Enclosure | Kicker CompQ 10","description":"\u003cp\u003eThe \u003cstrong\u003ePerformance Optimized Wedge Sealed 10\" Enclosure for the Kicker CompQ 10\u003c\/strong\u003e is a musical sealed cabinet built specifically around Kicker's flagship round-cone 10\" subwoofer. It puts Kicker's most capable round 10\" driver into a trunk-loading wedge that plays clean, deep, and articulate at any output level.\u003c\/p\u003e\u003cp\u003eThe Kicker CompQ 10 (51CWQ102 DVC 2Ω or 51CWQ104 DVC 4Ω) is an 800-watt RMS subwoofer with 19.7mm of one-way Xmax, a SoloKon polypropylene cone, ribbed Santoprene surround, cast aluminum basket, and Kicker's BlueLace progressive spider. It shares the motor architecture and cone technology of the larger CompQ subwoofers, scaled to deliver serious 10-inch output with excellent transient control.\u003c\/p\u003e\u003cp\u003eThe 0.66 cubic foot net volume matches Kicker's own recommended minimum sealed enclosure and produces a Qtc of 0.65 based on bench-measured T\/S parameters. This is an extended musical alignment that gives the CompQ 10 room to breathe, delivering deeper low-end reach than a tighter tune while retaining excellent midbass articulation. Predicted F3 lands at 56 Hz, with the strong cabin gain typical of trunk installations extending that meaningfully lower in-vehicle.\u003c\/p\u003e\u003cp\u003eConstruction is the full Proline X Performance Optimized platform: ShopSabre CNC-cut Langboard Elite MDF stack-fab layers, all four corners radiused 3\" viewed top-down, precision-milled magnet cavity for volume tuning and voice-coil cooling, perimeter cross-bracing, and a double-layer 1.5\" front baffle (two 3\/4\" MDF sheets bonded) for maximum baffle rigidity and driver isolation. Wedge geometry angles the cone rear-firing into the trunk at ~20° from vertical for optimum cabin loading. Terminal cup is our Proline X ABS\/carbon-fiber composite pre-wired with 12 gauge OFC.\u003c\/p\u003e\u003cp\u003eBring your own Kicker CompQ 10 — mount cutout is direct-fit for either the 51CWQ102 or 51CWQ104.\u003c\/p\u003e\u003cp\u003eManufactured in Tullahoma, Tennessee. 1-year enclosure warranty.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44532536901721,"sku":"PO 10-S W CompQ","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-micro-series-dual-15-sealed-enclosure-built-for-resonix-gus-15subwoofer-enclosuresproline-x-9360178_0d85b64e-bf01-4ae2-b110-bea81e21bbb3.jpg?v=1786906278"},{"product_id":"performance-optimized-wedge-sealed-10-enclosure-kicker-comp-vx-10","title":"Performance Optimized Wedge Sealed 10\" Enclosure | Kicker Comp VX 10","description":"\u003cp\u003eThe \u003cstrong\u003ePerformance Optimized Wedge Sealed 10\" Enclosure for the Kicker Comp VX 10\u003c\/strong\u003e is a musical sealed cabinet built around Kicker's high-output round subwoofer. Comp VX sits one step below the flagship CompQ in Kicker's SQ lineup, offering nearly identical build quality and output character at a more accessible price point.\u003c\/p\u003e\u003cp\u003eThe Kicker Comp VX 10 (50CVX102 DVC 2Ω or 50CVX104 DVC 4Ω) is a 600-watt RMS subwoofer with 16.25mm of one-way Xmax, a SoloKon polypropylene cone with vented back bracing, ribbed Santoprene surround, cast aluminum basket with perimeter venting, UniPlate extended pole piece for heat dissipation, and Kicker's high-strength suspension. It's built on the same platform philosophy as the Solo-Baric L7 line, using the same core technologies scaled to fit a round subwoofer designed for musical output.\u003c\/p\u003e\u003cp\u003eThe 0.80 cubic foot net volume matches Kicker's own recommended minimum sealed enclosure and produces a Qtc of 0.63 based on bench-measured T\/S parameters. This is an extended musical alignment that gives the Comp VX 10 room to breathe, delivering deep low-end reach with excellent midbass articulation. Predicted F3 lands at 65 Hz, with strong cabin gain typical of trunk installations extending that meaningfully lower in-vehicle.\u003c\/p\u003e\u003cp\u003eConstruction is the full Proline X Performance Optimized platform: ShopSabre CNC-cut Langboard Elite MDF stack-fab layers, all four corners radiused 3\" viewed top-down, precision-milled magnet cavity for volume tuning and voice-coil cooling, perimeter cross-bracing, and a double-layer 1.5\" front baffle (two 3\/4\" MDF sheets bonded) for maximum baffle rigidity and driver isolation. Wedge geometry angles the cone rear-firing into the trunk at ~20° from vertical for optimum cabin loading. Terminal cup is our Proline X ABS\/carbon-fiber composite pre-wired with 12 gauge OFC.\u003c\/p\u003e\u003cp\u003eBring your own Kicker Comp VX 10 — mount cutout is direct-fit for either the 50CVX102 or 50CVX104.\u003c\/p\u003e\u003cp\u003eManufactured in Tullahoma, Tennessee. 1-year enclosure warranty.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44532548239449,"sku":"PO 10-S W CompVX","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-micro-series-dual-15-sealed-enclosure-built-for-resonix-gus-15subwoofer-enclosuresproline-x-9360178_1f775517-a09d-48bf-a26b-06aa481132e0.jpg?v=1786906829"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-kicker-comp-vx-12","title":"Performance Optimized Wedge Sealed 12\" Enclosure | Kicker Comp VX 12","description":"\u003cp\u003eThe \u003cstrong\u003ePerformance Optimized Wedge Sealed 12\" Enclosure for the Kicker Comp VX 12\u003c\/strong\u003e is a musical sealed cabinet built around Kicker's high-output round 12\" subwoofer. Comp VX sits one step below the flagship CompQ in Kicker's SQ lineup, offering nearly identical build quality and output character at a more accessible price point.\u003c\/p\u003e\u003cp\u003eThe Kicker Comp VX 12 (50CVX122 DVC 2Ω or 50CVX124 DVC 4Ω) is a 750-watt RMS subwoofer with 19.25mm of one-way Xmax, a SoloKon polypropylene cone with vented back bracing, ribbed Santoprene surround, cast aluminum basket with perimeter venting, UniPlate extended pole piece for heat dissipation, and Kicker's high-strength suspension. It's built on the same platform philosophy as the Solo-Baric L7 line, using the same core technologies scaled to fit a round subwoofer designed for musical output.\u003c\/p\u003e\u003cp\u003eThe 1.00 cubic foot net volume matches Kicker's own recommended minimum sealed enclosure and produces a Qtc of 0.65 based on bench-measured T\/S parameters. This is an extended musical alignment that gives the Comp VX 12 room to breathe, delivering deep low-end reach with excellent midbass articulation. Predicted F3 lands at 55 Hz, with strong cabin gain typical of trunk installations extending that meaningfully lower in-vehicle.\u003c\/p\u003e\u003cp\u003eConstruction is the full Proline X Performance Optimized platform: ShopSabre CNC-cut Langboard Elite MDF stack-fab layers, all four corners radiused 3\" viewed top-down, precision-milled magnet cavity for volume tuning and voice-coil cooling, perimeter cross-bracing, and a double-layer 1.5\" front baffle (two 3\/4\" MDF sheets bonded) for maximum baffle rigidity and driver isolation. Wedge geometry angles the cone rear-firing into the trunk at ~20° from vertical for optimum cabin loading. Terminal cup is our Proline X ABS\/carbon-fiber composite pre-wired with 12 gauge OFC.\u003c\/p\u003e\u003cp\u003eBring your own Kicker Comp VX 12 — mount cutout is direct-fit for either the 50CVX122 or 50CVX124.\u003c\/p\u003e\u003cp\u003eManufactured in Tullahoma, Tennessee. 1-year enclosure warranty.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44532552466521,"sku":"PO 12-S W CompVX","price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-micro-series-dual-15-sealed-enclosure-built-for-resonix-gus-15subwoofer-enclosuresproline-x-9360178_83976957-b897-43b2-995b-7e0ae1cf6c5d.jpg?v=1786907561"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-kicker-comp-vx-15","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Kicker Comp VX 15","description":"\u003cp\u003eThe \u003cstrong\u003ePerformance Optimized Wedge Sealed 15\" Enclosure for the Kicker Comp VX 15\u003c\/strong\u003e is a musical sealed cabinet built around Kicker's high-output round 15\" subwoofer. Comp VX sits one step below the flagship CompQ in Kicker's SQ lineup, offering nearly identical build quality and output character at a more accessible price point.\u003c\/p\u003e\u003cp\u003eThe Kicker Comp VX 15 (50CVX152 DVC 2Ω or 50CVX154 DVC 4Ω) is a 1000-watt RMS subwoofer with 20.65mm of one-way Xmax, a SoloKon polypropylene cone with vented back bracing, ribbed Santoprene surround, cast aluminum basket with perimeter venting, UniPlate extended pole piece for heat dissipation, and Kicker's high-strength suspension. It's built on the same platform philosophy as the Solo-Baric L7 line, using the same core technologies scaled to fit a round 15-inch subwoofer designed for musical output.\u003c\/p\u003e\u003cp\u003eThe 1.80 cubic foot net volume matches Kicker's own recommended minimum sealed enclosure and produces a Qtc of 0.65 based on bench-measured T\/S parameters. This is an extended musical alignment that gives the Comp VX 15 room to breathe, delivering deep low-end reach with excellent midbass articulation. Predicted F3 lands at 52 Hz, with strong cabin gain typical of trunk installations extending that meaningfully lower in-vehicle. The Comp VX 15 has an unusually large Vas of 4.18 cubic feet, and this driver fundamentally rewards being given air to work with.\u003c\/p\u003e\u003cp\u003eConstruction is the full Proline X Performance Optimized platform: ShopSabre CNC-cut Langboard Elite MDF stack-fab layers, all four corners radiused 3\" viewed top-down, precision-milled magnet cavity for volume tuning and voice-coil cooling, perimeter cross-bracing, and a double-layer 1.5\" front baffle (two 3\/4\" MDF sheets bonded) for maximum baffle rigidity and driver isolation. Wedge geometry angles the cone rear-firing into the trunk at ~20° from vertical for optimum cabin loading. Terminal cup is our Proline X ABS\/carbon-fiber composite pre-wired with 12 gauge OFC.\u003c\/p\u003e\u003cp\u003eBring your own Kicker Comp VX 15 — mount cutout is direct-fit for either the 50CVX152 or 50CVX154.\u003c\/p\u003e\u003cp\u003eManufactured in Tullahoma, Tennessee. 1-year enclosure warranty.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44532559741017,"sku":"PO 15-S W CompVX","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-micro-series-dual-15-sealed-enclosure-built-for-resonix-gus-15subwoofer-enclosuresproline-x-9360178_889a3a0c-f23b-4cea-ad9e-0b3fdbe0131f.jpg?v=1786908304"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-prodigy-nb5-15","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Prodigy NB5-15","description":"\u003cp\u003eThe \u003cstrong\u003ePerformance Optimized Wedge Sealed 15\" Enclosure for the Prodigy NB5-15\u003c\/strong\u003e is a musical sealed cabinet built around Prodigy Audio's flagship 15\" subwoofer. The NB5 Series represents Prodigy's top-tier SQL platform, engineered for extreme output with musical intent, and this wedge gives it the trunk-loading geometry to perform at both.\u003c\/p\u003e\u003cp\u003eThe Prodigy NB5-15 (NB5-15D2 dual 2Ω or NB5-15D4 dual 4Ω) is a 1200-watt RMS subwoofer with 27mm of one-way Xmax at 70% BL, 40mm X-mech forward, and 50mm downward X-mech clearance before soft parts contact hard parts. Motor design features 280 ounces of ferrite, upper and lower aluminum Faraday shorting rings, vented pole with coil-gap radial vents, and a 2.75\" flat-aluminum voice coil. Heavy cast aluminum frame doubles as a heat exchanger. Nomex spiders with double stitched-in tinsel leads, competition-grade treated paper cone, carbon fiber dust cap, and heavy-duty foam surround complete the package.\u003c\/p\u003e\u003cp\u003eThe 1.76 cubic foot net volume was selected to work across both coil options: D2 lands at Qtc 0.66 (musical, extended) and D4 lands at Qtc 0.75 (punchy-musical) based on published T\/S parameters. Both are usable, musical alignments that give the NB5-15 room to breathe while keeping the wedge footprint practical for trunk installations. Predicted F3 lands in the 46-52 Hz range depending on coil choice, with strong cabin gain typical of trunk installations extending that meaningfully lower in-vehicle.\u003c\/p\u003e\u003cp\u003eConstruction is the full Proline X Performance Optimized platform: ShopSabre CNC-cut Langboard Elite MDF stack-fab layers, all four corners radiused 3\" viewed top-down, precision-milled magnet cavity for volume tuning and voice-coil cooling, perimeter cross-bracing, and a double-layer 1.5\" front baffle (two 3\/4\" MDF sheets bonded) for maximum baffle rigidity and driver isolation. Wedge geometry angles the cone rear-firing into the trunk at ~17° from vertical for optimum cabin loading. Terminal cup is our Proline X ABS\/carbon-fiber composite pre-wired with 12 gauge OFC.\u003c\/p\u003e\u003cp\u003eBring your own Prodigy NB5-15 — mount cutout is direct-fit for either the NB5-15D2 or NB5-15D4.\u003c\/p\u003e\u003cp\u003eManufactured in Tullahoma, Tennessee. 1-year enclosure warranty.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44532937261145,"sku":"PO 15-S W NB5","price":369.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-micro-series-dual-15-sealed-enclosure-built-for-resonix-gus-15subwoofer-enclosuresproline-x-9360178_0dc95cd9-2b69-41aa-b7fe-360a9f294126.jpg?v=1786932652"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-prodigy-nb5-12","title":"Performance Optimized Wedge Sealed 12\" Enclosure | Prodigy NB5-12","description":"\u003cp\u003eThe \u003cstrong\u003ePerformance Optimized Wedge Sealed 12\" Enclosure for the Prodigy NB5-12\u003c\/strong\u003e is a musical sealed cabinet built around Prodigy Audio's flagship 12\" subwoofer. The NB5 Series represents Prodigy's top-tier SQL platform, engineered for extreme output with musical intent, and this wedge gives it the trunk-loading geometry to perform at both.\u003c\/p\u003e\u003cp\u003eThe Prodigy NB5-12 (NB5-12D2 dual 2Ω or NB5-12D4 dual 4Ω) is a 1200-watt RMS subwoofer with 27mm of one-way Xmax at 70% BL, 40mm X-mech forward, and 50mm downward X-mech clearance before soft parts contact hard parts. Motor design features 280 ounces of ferrite, upper and lower aluminum Faraday shorting rings, vented pole with coil-gap radial vents, and a 2.75\" flat-aluminum voice coil. Heavy cast aluminum frame doubles as a heat exchanger. Nomex spiders with double stitched-in tinsel leads, competition-grade treated paper cone, carbon fiber dust cap, and heavy-duty foam surround complete the package.\u003c\/p\u003e\u003cp\u003eThe 0.79 cubic foot net volume was selected to hit a near-Butterworth alignment with the D4 coil, landing at Qtc 0.68 based on Prodigy's published T\/S parameters. The D2 coil in this same cabinet produces Qtc 0.55 (over-damped, extended, and looser in character). Predicted F3 lands in the 46-52 Hz range depending on coil choice, with strong cabin gain typical of trunk installations extending that meaningfully lower in-vehicle. If your primary target is the D2 coil, a smaller custom cabinet would be the right call; this design prioritizes the D4 coil alignment.\u003c\/p\u003e\u003cp\u003eConstruction is the full Proline X Performance Optimized platform: ShopSabre CNC-cut Langboard Elite MDF stack-fab layers, all four corners radiused 3\" viewed top-down, precision-milled magnet cavity for volume tuning and voice-coil cooling, perimeter cross-bracing, and a double-layer 1.5\" front baffle (two 3\/4\" MDF sheets bonded) for maximum baffle rigidity and driver isolation. Wedge geometry angles the cone rear-firing into the trunk at ~20° from vertical for optimum cabin loading. Terminal cup is our Proline X ABS\/carbon-fiber composite pre-wired with 12 gauge OFC.\u003c\/p\u003e\u003cp\u003eBring your own Prodigy NB5-12 — mount cutout is direct-fit for either the NB5-12D2 or NB5-12D4.\u003c\/p\u003e\u003cp\u003eManufactured in Tullahoma, Tennessee. 1-year enclosure warranty.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44532982218841,"sku":"PO 12-S W NB5","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-micro-series-dual-15-sealed-enclosure-built-for-resonix-gus-15subwoofer-enclosuresproline-x-9360178_092b9d43-3760-4e48-8a43-c4aabf129d92.jpg?v=1786933611"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/collections\/proline-x-performance-optimized-series-enclosures-4896487.webp?v=1779354924","url":"https:\/\/audiointensity.com\/collections\/proline-x-performance-optimized-series.oembed?page=4","provider":"Audio Intensity","version":"1.0","type":"link"}