{"title":"15 Inch Subwoofer Boxes","description":"\u003cdiv class=\"ai-collection-block\"\u003e\n\n\u003ch2\u003eWhy Choose 15 Inch\u003c\/h2\u003e\n\n\u003cp\u003eThe 15 inch subwoofer is a deliberate choice. Most buyers stop at 12 inch because the size and price work for typical builds. The buyer who chooses 15 inch knows what they're after: more cone area (176 square inches versus 113 square inches for a 12), deeper low-frequency extension (typically usable to 25-30Hz versus 30-35Hz for a 12), and the SPL output that justifies the larger cabinet footprint and amplifier requirements. For competition SPL builds, dedicated bass-only systems, and serious enthusiasts who want the lowest reach and the highest output, 15 inch is the right answer.\u003c\/p\u003e\n\n\u003cp\u003eThe tradeoff is space and power. A 15 inch enclosure is significantly larger than a 12 inch (typical sealed cabinet 2.0 to 2.5 cubic feet, ported 3.0 to 5.0 cubic feet). The driver typically requires 750 to 2000W RMS depending on the model, which means a high-current monoblock amplifier and a healthy electrical system. If you're committed to those tradeoffs, the 15 inch produces deep bass that smaller drivers physically cannot match.\u003c\/p\u003e\n\n\u003ch2\u003eBest 15 Inch Subwoofer Box Design for Deep Bass\u003c\/h2\u003e\n\n\u003cp\u003eFor deep bass output, the design factors that matter are internal volume, port tuning frequency (in ported alignments), and cabinet rigidity. The 15 inch driver moves significantly more air than smaller drivers, which means the cabinet has to handle more internal pressure without flexing or losing structural integrity over time.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInternal volume:\u003c\/strong\u003e Calculated from the driver's published Thiele-Small parameters. Most 15 inch sealed enclosures fall in the 2.0 to 2.5 cubic feet range. Most 15 inch ported enclosures fall in the 3.0 to 5.0 cubic feet range plus port volume. The driver manufacturer publishes recommended sealed and ported volumes; matching the enclosure to that recommendation is the most important sizing decision.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePort tuning frequency (ported alignments):\u003c\/strong\u003e For maximum deep bass, port tuning between 28 and 32Hz extends low-frequency reach further than higher tuning frequencies. The tradeoff is upper bass output, which decreases at lower tunings. For balanced musical use, 32-38Hz is the standard range. For SPL competition where the score is at specific frequencies, the tuning shifts toward the scoring range.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCabinet rigidity:\u003c\/strong\u003e A 15 inch driver at full output generates significant internal pressure cycles. Cabinet construction that flexes under those pressures wastes acoustic energy and produces inconsistent output over time. Audio Intensity 15 inch enclosures use Langboard Elite MDF construction with internal bracing and Dado\/V-Groove panel joinery (or stack fabrication for the Micro Series 15) calculated to maintain dimensional stability under sustained competition-level output.\u003c\/p\u003e\n\n\u003ch2\u003eSealed vs Ported 15 Inch\u003c\/h2\u003e\n\n\u003cp\u003eThe sealed-vs-ported choice matters more at 15 inch than at smaller sizes because the output gain from porting is more significant in absolute terms.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSealed 15 inch enclosures (P15-S III-G, Pro AM 15-S, M15-S Gus):\u003c\/strong\u003e Tight, accurate bass with smooth roll-off below resonance. The right pick for SQ-focused builds, music with detailed bass content, and any system where the 15 inch sub needs to integrate cleanly with front speakers. Sealed 15 inch enclosures are the most compact 15 inch option, fitting in install locations where ported won't.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePorted 15 inch enclosures (Pro KIK 15 X, Pro KIK 15D):\u003c\/strong\u003e Significantly more output, deeper extension below sealed roll-off, and higher efficiency from amplifier power. The right pick for output-priority builds, SPL competition systems, and dedicated bass-only setups. Ported 15 inch enclosures need more cabinet volume than sealed but produce the meaningful deep bass output that justifies running a 15 inch driver in the first place.\u003c\/p\u003e\n\n\u003ch2\u003eCustom and Driver-Matched 15 Inch Enclosures\u003c\/h2\u003e\n\n\u003cp\u003eThe 15 inch lineup includes both universal-fit and driver-matched enclosures across multiple series.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePerformance Series universal-fit (P15-S III-G):\u003c\/strong\u003e Single 15 inch sealed enclosure with internal volume calculated for the typical 15 inch driver in the standard Qts range. The right pick when running a mainstream 15 inch driver and when you want the most accessible price point.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePerformance Optimized for Audiomobile Encore (Pro AM 15-S):\u003c\/strong\u003e Sealed down-firing 15 inch enclosure built specifically for the Audiomobile Encore 15. Driver-matched volume tuning with cabinet geometry calculated for cargo-bay floor placement.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eProfessional Series for Kicker Solo X 15 (Pro KIK 15 X, Pro KIK 15D):\u003c\/strong\u003e Competition-grade ported enclosures for the Kicker Solo X 15 driver, single and dual configurations. Double-baffle minimum construction with threaded inserts matched to the Solo X bolt pattern. The Solo X is a serious high-output competition driver and the Professional Series is the right enclosure pairing for it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMicro Series for ResoNix GUS 15 (M15-S Gus):\u003c\/strong\u003e Stack-fabrication 15 inch sealed enclosure built specifically for the ResoNix GUS 15 driver. Driver not carried by Audio Intensity, but we build the enclosure as a fitment service for buyers who already own the GUS 15 or are buying it elsewhere.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eVehicle Specific F-150\/F-250 loaded (VS FD1-1):\u003c\/strong\u003e Direct-fit Audiomobile Encore 15 loaded enclosure for the 2015-2023 Ford F-150 and 2017-2023 F-250. Sub pre-installed and pre-wired in a vehicle-specific cabinet. Closeout pricing.\u003c\/p\u003e\n\n\u003ch2\u003eConstruction\u003c\/h2\u003e\n\n\u003cp\u003eEvery Audio Intensity 15 inch enclosure is built from Langboard Elite MDF (48.5 lb\/ft³ density, 200 psi internal bond strength), the highest-grade MDF available for enclosure construction. Cabinet panels are joined using Dado and V-Groove cuts (or stack fabrication for the Micro Series 15) that mechanically interlock at each panel intersection before bonding. Every enclosure is CNC-cut on ShopSabre routers in our Tullahoma, Tennessee facility.\u003c\/p\u003e\n\n\u003cp\u003eFor ported configurations, port dimensions are calculated from the target tuning frequency and the driver's Xmax to produce laminar airflow at maximum excursion. For Professional Series 15 inch enclosures, double-baffle construction holds dimensional stability under sustained competition-level output. Internal bracing is placed at intervals calculated to prevent panel resonance at the frequencies the enclosure operates in.\u003c\/p\u003e\n\n\u003caside class=\"ai-callout-cta\"\u003e\n\u003cp class=\"ai-callout-label\"\u003eNeed Help With Your 15 Inch Build?\u003c\/p\u003e\n\u003cp\u003eTalk to an SQ-judge tech directly. We'll confirm the right 15 inch subwoofer box for your driver, your install location, and your build goals.\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\n\u003cdiv class=\"ai-faq-section\"\u003e\n\n\u003ch2\u003eFrequently Asked 15 Inch Subwoofer Box Questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs a 15 inch subwoofer box worth it over a 12 inch?\u003c\/h3\u003e\n\u003cp\u003eFor buyers who specifically want more cone area, deeper extension, and higher SPL output, yes. The 15 inch produces usable bass to 25-30Hz versus 30-35Hz for a 12 inch, with 50% more cone area. The tradeoffs are cabinet size (significantly larger) and amplifier requirements (typically 750-2000W RMS). For SQ builds, daily commute use, and most music genres, a 12 inch is sufficient and easier to integrate. For competition SPL, dedicated bass-only systems, and buyers who want the deepest possible reach, 15 inch is the right answer.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's the ideal size for a 15 inch subwoofer box?\u003c\/h3\u003e\n\u003cp\u003eMost 15 inch sealed enclosures run 2.0 to 2.5 cubic feet net (after displacement). Most 15 inch ported enclosures run 3.0 to 5.0 cubic feet net plus port volume. The driver manufacturer publishes recommended sealed and ported volumes; matching the enclosure to that recommendation is the most important sizing decision. Each Audio Intensity 15 inch enclosure product page lists the specific internal volume for that model.\u003c\/p\u003e\n\n\u003ch3\u003eSealed or ported for a 15 inch?\u003c\/h3\u003e\n\u003cp\u003eSealed produces tight, accurate bass with smaller cabinet footprint and the SQ-focused character that integrates cleanly with front speakers. Ported produces 3 dB more output on average, deeper extension below sealed roll-off, and higher efficiency from amplifier power. For output-priority and SPL builds, ported is the standard. For SQ-focused builds and tighter install spaces, sealed is the right pick. The 15 inch lineup includes both alignments.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's the best 15 inch subwoofer box for deep bass?\u003c\/h3\u003e\n\u003cp\u003eThe Pro KIK 15 X is the Professional Series ported enclosure for the Kicker Solo X 15, which produces the deepest sustained bass output in the lineup. The Pro AM 15-S is sealed down-firing for the Audiomobile Encore 15, which delivers cleaner deep bass for SQ-focused builds. For universal fit, the P15-S III-G is the right pick for any standard 15 inch driver. The right choice depends on the driver and your build priorities.\u003c\/p\u003e\n\n\u003ch3\u003eCan I run dual 15 inch subs in one enclosure?\u003c\/h3\u003e\n\u003cp\u003eYes. The Pro KIK 15D is the Professional Series dual 15 inch enclosure for the Kicker Solo X 15, in a competition-grade construction with paired drivers. Dual 15 inch builds produce extreme output (typically 6 dB more than a single 15) but require correspondingly more amplifier power, cabinet space, and a healthy electrical system. Confirm your amplifier's stable impedance specification before wiring two drivers in parallel.\u003c\/p\u003e\n\n\u003ch3\u003eWhat amplifier do I need for a 15 inch sub?\u003c\/h3\u003e\n\u003cp\u003eMatch the amplifier's RMS output at your wired impedance to the driver's RMS rating. Most 15 inch subs run 750-2000W RMS depending on the model. The Kicker Solo X 15 runs up to 2500W RMS and benefits from a high-current monoblock at the appropriate impedance. The Audiomobile Encore 15 runs 1000W RMS. The 15 inch class typically requires more amplifier power and a more robust electrical system (high-output alternator, dedicated battery, large gauge power wire) than 12 inch builds.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"ai-sealed-xlink\"\u003e\n\u003ch2\u003eShop Sealed 15 Inch Enclosures\u003c\/h2\u003e\n\u003cp\u003eFor SQ-focused 15 inch builds, see our \u003ca href=\"https:\/\/audiointensity.com\/collections\/sealed-subwoofer-boxes\" title=\"Sealed subwoofer boxes\"\u003esealed subwoofer boxes\u003c\/a\u003e, including the P15-S and down-firing Pro AM 15-S, built to spec for tight, accurate bass.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","products":[{"product_id":"proline-x-p15-s-single-15-sealed-subwoofer-enclosure-v3","title":"Proline X P15-S | Single 15\" Sealed Subwoofer Enclosure | V3","description":"\u003cstyle\u003e\n .px-desc {\n font-family: 'Helvetica Neue', Arial, sans-serif;\n line-height: 1.8;\n color: #1e293b;\n max-width: 1200px;\n margin: 0 auto;\n background: #ffffff;\n }\n\n .px-hero {\n background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%);\n padding: 60px 40px;\n text-align: center;\n color: white;\n }\n\n .px-hero .px-title {\n font-size: 2.6em;\n font-weight: 800;\n text-transform: uppercase;\n letter-spacing: 2px;\n margin: 0 0 10px 0;\n color: white;\n }\n\n .px-hero .px-subtitle {\n font-size: 1.2em;\n font-weight: 300;\n opacity: 0.9;\n margin: 0 0 30px 0;\n }\n\n .px-badges {\n display: flex;\n justify-content: center;\n flex-wrap: wrap;\n gap: 12px;\n margin-top: 20px;\n }\n\n .px-badge {\n background: rgba(6, 182, 212, 0.2);\n border: 1px solid #06b6d4;\n color: #67e8f9;\n padding: 8px 20px;\n border-radius: 20px;\n font-size: 0.9em;\n font-weight: 600;\n letter-spacing: 0.5px;\n }\n\n .px-section {\n padding: 50px 40px;\n border-bottom: 1px solid #e2e8f0;\n background: #ffffff;\n }\n\n .px-section:nth-child(even) {\n background: #f0f9ff;\n }\n\n .px-section h2 {\n color: #0e7490;\n font-size: 2em;\n font-weight: 700;\n margin: 0 0 20px 0;\n padding-bottom: 12px;\n border-bottom: 3px solid #06b6d4;\n }\n\n .px-section h3 {\n color: #0f172a;\n font-size: 1.4em;\n font-weight: 600;\n margin: 30px 0 15px 0;\n }\n\n .px-section p {\n font-size: 1.05em;\n color: #334155;\n margin-bottom: 18px;\n }\n\n .px-section ul {\n margin: 15px 0;\n padding-left: 25px;\n }\n\n .px-section li {\n font-size: 1.05em;\n color: #334155;\n margin-bottom: 10px;\n line-height: 1.7;\n }\n\n .px-grid {\n display: grid;\n grid-template-columns: repeat(2, 1fr);\n gap: 24px;\n margin: 30px 0;\n }\n\n .px-card {\n background: #ffffff;\n border: 1px solid #e2e8f0;\n border-top: 4px solid #06b6d4;\n border-radius: 6px;\n padding: 24px;\n }\n\n .px-card h4 {\n color: #0e7490;\n font-size: 1.15em;\n font-weight: 700;\n margin: 0 0 12px 0;\n }\n\n .px-card p {\n font-size: 1em;\n color: #475569;\n margin: 0;\n line-height: 1.7;\n }\n\n .px-highlight {\n background: #f0f9ff;\n border-left: 5px solid #06b6d4;\n padding: 24px 28px;\n margin: 28px 0;\n border-radius: 0 6px 6px 0;\n }\n\n .px-highlight h3 {\n color: #0e7490;\n margin: 0 0 12px 0;\n font-size: 1.2em;\n }\n\n .px-highlight p {\n margin-bottom: 10px;\n color: #1e293b;\n }\n\n .px-cta {\n background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%);\n padding: 60px 40px;\n text-align: center;\n color: white;\n }\n\n .px-cta h2 {\n font-size: 2.2em;\n font-weight: 700;\n margin: 0 0 20px 0;\n color: white;\n border: none;\n padding: 0;\n }\n\n .px-cta p {\n font-size: 1.15em;\n opacity: 0.92;\n max-width: 800px;\n margin: 0 auto 20px auto;\n color: white;\n }\n\n .px-driver-link {\n display: inline-block;\n background: #f0f9ff;\n border: 2px solid #06b6d4;\n border-radius: 6px;\n padding: 16px 24px;\n margin: 10px 10px 10px 0;\n text-decoration: none;\n color: #0e7490;\n font-weight: 700;\n font-size: 1em;\n transition: all 0.2s ease;\n }\n\n .px-driver-link:hover {\n background: #06b6d4;\n color: white;\n }\n\n @media (max-width: 768px) {\n .px-hero { padding: 40px 20px; }\n .px-hero .px-title { font-size: 1.8em; }\n .px-section { padding: 30px 20px; }\n .px-section h2 { font-size: 1.6em; }\n .px-grid { grid-template-columns: 1fr; }\n .px-cta { padding: 40px 20px; }\n .px-cta h2 { font-size: 1.6em; }\n }\n\u003c\/style\u003e\n\u003cdiv class=\"px-desc\"\u003e\n\u003c!-- Hero --\u003e\n\u003cdiv class=\"px-hero\"\u003e\n\u003cp class=\"px-title\"\u003eProline X P15-S\u003c\/p\u003e\n\u003cp class=\"px-subtitle\"\u003eSingle 15\" Sealed Subwoofer Enclosure | V3\u003c\/p\u003e\n\u003cdiv class=\"px-badges\"\u003e\n\u003cspan class=\"px-badge\"\u003e2.0 ft³ Net\u003c\/span\u003e \u003cspan class=\"px-badge\"\u003eSealed Alignment\u003c\/span\u003e \u003cspan class=\"px-badge\"\u003e9\" Max Depth\u003c\/span\u003e \u003cspan class=\"px-badge\"\u003e0.75\" Single Baffle\u003c\/span\u003e \u003cspan class=\"px-badge\"\u003eLangboard Elite MDF\u003c\/span\u003e \u003cspan class=\"px-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Introduction --\u003e\n\u003cdiv class=\"px-section\"\u003e\n\u003ch2\u003eMaximum Cone Area. Sealed Accuracy. Built to Last.\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eProline X P15-S\u003c\/strong\u003e is a single 15\" sealed enclosure built for installs that need the output and low-frequency authority of the largest common subwoofer format, in a controlled, accurate alignment. At \u003cstrong\u003e2.0 ft³ net\u003c\/strong\u003e and sealed alignment, the P15-S gives a 15\" driver the air space it needs to produce deep, authoritative bass with a flat, predictable response curve. No port resonance. No tuning peak. No frequency-specific coloration. The 15\" cone moves significantly more air per excursion than any smaller driver, in sealed alignment, that output advantage is delivered with the same transient accuracy and DSP-tunability that sealed enclosures are known for.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e19\" wide, 17\" tall, and 15\" deep\u003c\/strong\u003e, the P15-S fits in most full-size sedan and truck trunks without custom fabrication. The \u003cstrong\u003e9\" max mounting depth\u003c\/strong\u003e covers the majority of standard 15\" drivers. For installs where you need the physical impact and low-frequency extension that only a 15\" driver delivers, but want accuracy and control rather than a resonance, this is the correct enclosure.\u003c\/p\u003e\n\u003cp\u003eEvery panel is CNC-cut from \u003cstrong\u003eLangboard Elite MDF\u003c\/strong\u003e to exact internal volume and assembled by hand in our Tennessee facility. A single recessed \u003cstrong\u003eABS\/Carbon Fiber Composite terminal cup\u003c\/strong\u003e handles wiring, pre-wired with \u003cstrong\u003e12g OFC speaker wire\u003c\/strong\u003e. Finish options are Dark Gray Trunkliner or Plush Black. Shipping is included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Why 15\" Sealed --\u003e\n\u003cdiv class=\"px-section\"\u003e\n\u003ch2\u003eWhy a 15\" Driver in Sealed Alignment\u003c\/h2\u003e\n\u003cp\u003eThe argument for a sealed 15\" comes down to one specific performance combination: the cone area and air displacement advantage of a 15\" driver, delivered with the transient accuracy and flat response profile of a sealed enclosure. Most builders who choose a 15\" driver go ported for maximum output. The sealed option is for a different listener, one who wants the physical presence and low-frequency reach of a 15\" without the port resonance, the ported tuning peak, or the larger enclosure depth that a ported 15\" requires.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e2.0 ft³ net\u003c\/strong\u003e, the P15-S places most standard 15\" drivers in the center of their recommended sealed range. The 15\" cone at this volume produces output levels that exceed a dual 12\" sealed configuration, with a single driver, a single terminal connection, and a simpler install. For installs where depth is available and output is the priority but accuracy cannot be sacrificed, the sealed 15\" is the most capable single-driver sealed configuration in the Performance Series.\u003c\/p\u003e\n\u003cdiv class=\"px-grid\"\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eMaximum Single-Driver Cone Area\u003c\/h4\u003e\n\u003cp\u003eA 15\" cone has roughly 55% more surface area than a 12\" driver. In sealed alignment, that translates directly into more output, deeper low-frequency extension, and greater physical impact. All delivered with the flat, controlled response that sealed enclosures produce.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eDeep Low-Frequency Extension\u003c\/h4\u003e\n\u003cp\u003eThe 15\" driver reaches sub-bass frequencies that smaller drivers in sealed enclosures cannot match at equivalent output levels. The P15-S produces bass below 30Hz with authority, the kind of physical presence that requires cone area, not just power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eSealed Accuracy at 15\" Scale\u003c\/h4\u003e\n\u003cp\u003eSealed alignment preserves the transient accuracy that produces tight, musical bass at any output level. The P15-S delivers the physical impact of a large-format driver without the port resonance or tuning-specific coloration that ported 15\" builds produce.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eDSP-Friendly Alignment\u003c\/h4\u003e\n\u003cp\u003eThe predictable 12 dB\/octave sealed rolloff responds accurately to DSP bass boost and crossover adjustments. Running a Goldhorn DSP or any active processor? Sealed alignment gives you full control over the final response without fighting a ported tuning peak.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Construction --\u003e\n\u003cdiv class=\"px-section\"\u003e\n\u003ch2\u003eConstruction: The Proline X Standard at 15\" Scale\u003c\/h2\u003e\n\u003cp\u003eThe P15-S uses the same Langboard Elite MDF and V-groove and dado joinery construction as every enclosure in the Proline X Performance Series. At 19\" wide and 15\" deep with a 15\" motor generating sustained pressure on every panel, the construction standard that holds up in compact 8\" builds is the same standard required here, and the P15-S is built to it without exception.\u003c\/p\u003e\n\u003ch3\u003eLangboard Elite MDF, Named, Verified, Documented\u003c\/h3\u003e\n\u003cp\u003eEvery panel is cut from \u003cstrong\u003eLangboard Elite MDF: 3\/4\" (18mm)\u003c\/strong\u003e, a named, mill-documented panel stock produced in the United States. The specifications below are pulled directly from Langboard's published mill data.\u003c\/p\u003e\n\u003cdiv class=\"px-highlight\"\u003e\n\u003ch3\u003eLangboard Elite: Published Mill Data\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDensity:\u003c\/strong\u003e 48.5 lbs\/ft³, higher density means less porosity, better screw retention, and reduced resonance\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInternal Bond:\u003c\/strong\u003e 200 psi, resistance to delamination under sustained bass pressure cycling\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModulus of Elasticity:\u003c\/strong\u003e 410,000 psi, panel stiffness under load; less flex means less resonance\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFace Screw Holding:\u003c\/strong\u003e 325 lbs, baffle hardware stays locked under vibration\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEdge Screw Holding:\u003c\/strong\u003e 250 lbs, joint integrity at every panel edge connection\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eV-Groove and Dado Joinery\u003c\/h3\u003e\n\u003cp\u003eEvery panel joint uses \u003cstrong\u003eV-groove and dado joinery\u003c\/strong\u003e, CNC-cut interlocking grooves that mechanically lock panels before adhesive is applied. A 15\" driver in a sealed enclosure generates significant sustained pressure on every panel simultaneously at high output levels. Every seam on the P15-S is mechanically locked before adhesive is applied, the joint integrity does not depend on adhesive condition alone. The box does not flex. The acoustic seal does not degrade over time.\u003c\/p\u003e\n\u003ch3\u003eIn-House ABS\/Carbon Fiber Composite Terminal Cup\u003c\/h3\u003e\n\u003cp\u003eThe terminal cup is built in-house at our Tennessee facility. The \u003cstrong\u003eABS\/Carbon Fiber Composite recessed cup\u003c\/strong\u003e features stainless steel hardware, aluminum landing plates, and copper ring terminals, pre-wired with \u003cstrong\u003e12g OFC speaker wire\u003c\/strong\u003e. The recessed mount protects terminals from cargo contact. Copper ring terminals provide a clean, corrosion-resistant connection that does not loosen under vibration over time.\u003c\/p\u003e\n\u003cdiv class=\"px-grid\"\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eShopSabre CNC Routers\u003c\/h4\u003e\n\u003cp\u003eEvery panel is machine-cut on ShopSabre industrial CNC routers. Consistent geometry, no hand-cut variance, no gaps at the joints. The internal volume of every P15-S is identical to spec across every unit produced.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eHand-Assembled in Tennessee\u003c\/h4\u003e\n\u003cp\u003eEvery enclosure is hand-assembled at our Tennessee facility and inspected before it ships. No overseas manufacturing. No batch assembly shortcuts. Regardless of enclosure size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eDark Gray Trunkliner or Plush Black\u003c\/h4\u003e\n\u003cp\u003eBoth finish options are professionally applied. Dark Gray Trunkliner blends with factory trunk materials for a clean, stealth appearance. Plush Black delivers the traditional aftermarket look. Both are durably bonded for long-term wear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eShipping Included\u003c\/h4\u003e\n\u003cp\u003eNo freight charges at checkout. The price you see is the price you pay. The enclosure ships assembled and ready to install.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Fitment --\u003e\n\u003cdiv class=\"px-section\"\u003e\n\u003ch2\u003eFitment Guide\u003c\/h2\u003e\n\u003cp\u003eThe P15-S fits in most full-size sedan and truck trunk configurations. At \u003cstrong\u003e19\"W x 17\"H x 15\"D\u003c\/strong\u003e, the 17\" height and 15\" depth are the critical dimensions. Verify both against your available trunk space before ordering.\u003c\/p\u003e\n\u003ch3\u003eDimensional Specifications\u003c\/h3\u003e\n\u003cdiv class=\"px-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eExternal Dimensions:\u003c\/strong\u003e 19\" W x 17\" H x 15\" D\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNet Internal Volume:\u003c\/strong\u003e 2.0 ft³\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTuning Frequency:\u003c\/strong\u003e N\/A, Sealed\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSubwoofer Cutout:\u003c\/strong\u003e 14.1\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMax Mounting Depth:\u003c\/strong\u003e 9\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFront Panel Thickness:\u003c\/strong\u003e 0.75\" Single Baffle\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eDriver Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe P15-S accommodates any 15\" subwoofer with a cutout diameter at or below \u003cstrong\u003e14.1\"\u003c\/strong\u003e and a mounting depth at or below \u003cstrong\u003e9\"\u003c\/strong\u003e. Verify both dimensions against your driver's published specifications before ordering.\u003c\/p\u003e\n\u003ch3\u003eCompatible Drivers\u003c\/h3\u003e\n\u003cp\u003eThe following drivers are available from Audio Intensity and are compatible with the P15-S:\u003c\/p\u003e\n\u003ca class=\"px-driver-link\" href=\"https:\/\/audiointensity.com\/products\/prodigy-audio-1200-watt-15-inch-subwoofer-nb5-series\"\u003eProdigy NB5-15D2 \u003c\/a\u003e \u003ca class=\"px-driver-link\" href=\"https:\/\/audiointensity.com\/products\/image-dynamics-idmax15d-v4\"\u003eImage Dynamics IDMAX15 V4 \u003c\/a\u003e\n\u003cp style=\"font-size: 0.9em; color: #64748b; margin-top: 12px;\"\u003eAlways verify cutout diameter and mounting depth against your specific driver's published specifications before ordering.\u003c\/p\u003e\n\u003ch3\u003eIdeal Install Applications\u003c\/h3\u003e\n\u003cdiv class=\"px-grid\"\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eFull-Size Trunk Build\u003c\/h4\u003e\n\u003cp\u003eAt 19\" wide and 15\" deep, the P15-S fits in most full-size sedan and truck trunk configurations. The 17\" height is the most constraining dimension in tighter trunk environments. Measure available height before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eSQ and DSP-Controlled Systems\u003c\/h4\u003e\n\u003cp\u003eSealed alignment and 2.0 ft³ net volume make the P15-S the correct enclosure for 15\" drivers in sound quality and DSP-controlled builds where the goal is maximum output with accurate, tuneable response rather than port-tuned SPL.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eHigh-Output Daily Systems\u003c\/h4\u003e\n\u003cp\u003eThe 15\" format in sealed alignment produces the most output available from a single-driver sealed configuration in the Performance Series. For daily systems where physical bass impact is the priority and accuracy cannot be sacrificed, the P15-S is the top of the sealed lineup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eStep Up From Dual 12\" Sealed\u003c\/h4\u003e\n\u003cp\u003eFor builds running the P12D-S that need more output and deeper extension from a single driver rather than two, the P15-S is the natural progression. More cone area, more output, simpler wiring, in a comparable trunk footprint.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- CTA --\u003e\n\u003cdiv class=\"px-cta\"\u003e\n\u003ch2\u003eMaximum Sealed Output. Tennessee-Built. Shipping Included.\u003c\/h2\u003e\n\u003cp\u003eThe Proline X P15-S is the most capable single-driver sealed enclosure in the Performance Series. Langboard Elite MDF. V-groove and dado joinery. 9\" max mounting depth. In-house terminal cup. Hand-assembled in Tennessee and inspected before it ships.\u003c\/p\u003e\n\u003cp\u003eMaximum cone area. Sealed accuracy. The top of the Performance Series sealed lineup. \u003cstrong\u003e$219.99 Dark Gray Trunkliner. $229.99 Plush Black.\u003c\/strong\u003e Shipping included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Dark Gray Trunkliner","offer_id":43157046329433,"sku":"P15-S G","price":219.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black","offer_id":43157046362201,"sku":"P15-S B","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/proline-x-performance-p15-s-sealed-enclosure-for-15-subwooferssubwoofer-enclosuresproline-x-965307.jpg?v=1761969168"},{"product_id":"direct-fit-single-audiomobile-encore-15-loaded-subwoofer-enclosure-ford-f150-250","title":"Direct Fit Single Audiomobile Encore 15 Subwoofer Enclosure | Ford F150\/250","description":"\u003cul\u003e\n\u003cli\u003eRequires 2.5\" Seat Lift (Not Included)\u003c\/li\u003e\n\u003cli\u003eBuilt For Audiomobile Encore 15\" Subwoofer (Not Included)\u003c\/li\u003e\n\u003cli\u003eTop and Front Acrylics\u003c\/li\u003e\n\u003cli\u003ePlush Black carpet\u003c\/li\u003e\n\u003cli\u003e1.6ft Net Airspace\u003c\/li\u003e\n\u003cli\u003eStack Fab Design with 1\" walls and Triple Layer Top\u003c\/li\u003e\n\u003cli\u003eincludes shipping to your door\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdvanced details coming soon\u003c\/p\u003e\n\u003cp\u003eAlso fits the GUS-15 from Resonix\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"315\" height=\"560\" src=\"https:\/\/www.youtube.com\/embed\/JPvX9JAunXw\" title='Encore 15\" | Ford F150'\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":42199422763097,"sku":"VS FD1 -1","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/direct-fit-single-audiomobile-encore-15-loaded-subwoofer-enclosure-ford-f150250subwoofer-enclosuresproline-x-812582.jpg?v=1742700600"},{"product_id":"proline-x-micro-series-15-sealed-enclosure-fits-resonix-gus-15","title":"Proline X Micro Series 15\" Sealed Enclosure | Built for ResoNix GUS-15","description":"\u003c!-- ============================================================\n PROLINE X MICRO SERIES — ResoNix GUS-15\n SEALED 15\" ENCLOSURE ONLY\n Color system: Green (#16a34a primary)\n ============================================================ --\u003e\n\u003cstyle\u003e\n .ms-wrap * { box-sizing: border-box; }\n .ms-wrap { font-family: inherit; color: #1e293b; line-height: 1.7; max-width: 1200px; margin: 0 auto; }\n .ms-hero { background: linear-gradient(135deg, #0f172a 0%, #14532d 100%); border-radius: 8px; padding: 40px 36px; margin-bottom: 32px; position: relative; overflow: hidden; }\n .ms-hero::before { content: ''; position: absolute; top: -40px; right: -40px; width: 220px; height: 220px; background: rgba(22,163,74,0.12); border-radius: 50%; }\n .ms-hero-badge { display: inline-block; background: transparent; border: 2px solid #16a34a; color: #86efac; font-size: 0.75em; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; padding: 4px 14px; border-radius: 20px; margin-bottom: 16px; }\n .ms-hero h2 { color: #ffffff; font-size: 1.65em; font-weight: 800; margin: 0 0 14px 0; line-height: 1.25; }\n .ms-hero p { color: #cbd5e1; font-size: 1em; margin: 0 0 24px 0; max-width: 640px; line-height: 1.7; }\n .ms-hero-stats { display: flex; gap: 28px; flex-wrap: wrap; }\n .ms-stat { text-align: center; }\n .ms-stat-num { display: block; color: #86efac; font-size: 1.5em; font-weight: 800; line-height: 1; }\n .ms-stat-label { display: block; color: #94a3b8; font-size: 0.72em; letter-spacing: 0.08em; text-transform: uppercase; margin-top: 4px; }\n .ms-section { background: #ffffff; border: 1px solid #e2e8f0; border-top: 4px solid #16a34a; border-radius: 6px; padding: 28px 32px; margin-bottom: 24px; }\n .ms-section:nth-child(odd) { background: #f8fafc; }\n .ms-section h3 { color: #14532d; font-size: 1.15em; font-weight: 700; margin: 0 0 14px 0; }\n .ms-section p { color: #334155; font-size: 0.97em; margin: 0 0 12px 0; }\n .ms-section p:last-child { margin-bottom: 0; }\n .ms-highlight { background: #f0fdf4; border-left: 5px solid #16a34a; padding: 22px 28px; margin: 28px 0; border-radius: 0 6px 6px 0; }\n .ms-highlight h3 { color: #14532d; margin: 0 0 10px 0; font-size: 1.1em; font-weight: 700; }\n .ms-highlight h3 + h3 { margin-top: 18px; }\n .ms-highlight p { margin-bottom: 10px; color: #1e293b; font-size: 0.97em; }\n .ms-highlight p:last-child { margin-bottom: 0; }\n .ms-alert { background: #dcfce7; border: 1px solid #16a34a; border-radius: 6px; padding: 14px 18px; margin: 20px 0; font-size: 0.93em; color: #166534; }\n .ms-alert strong { color: #14532d; }\n .ms-card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin: 24px 0; }\n @media (max-width: 600px) { .ms-card-grid { grid-template-columns: 1fr; } }\n .ms-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 3px solid #16a34a; border-radius: 6px; padding: 22px; }\n .ms-card-label { display: inline-block; background: #16a34a; color: #ffffff; font-size: 0.68em; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 3px 10px; border-radius: 3px; margin-bottom: 10px; }\n .ms-card h4 { color: #14532d; font-size: 1em; font-weight: 700; margin: 0 0 10px 0; }\n .ms-card-divider { height: 2px; background: #16a34a; width: 32px; margin-bottom: 12px; border-radius: 2px; }\n .ms-card p { font-size: 0.93em; color: #475569; margin: 0; line-height: 1.65; }\n .ms-card p strong { color: #14532d; }\n .ms-warranty { background: #0f172a; border-left: 5px solid #16a34a; border-radius: 0 6px 6px 0; padding: 20px 28px; margin: 28px 0; display: flex; align-items: center; gap: 20px; }\n .ms-warranty-badge { background: #16a34a; color: #ffffff; font-size: 1em; font-weight: 800; padding: 10px 16px; border-radius: 4px; white-space: nowrap; }\n .ms-warranty p { color: #cbd5e1; font-size: 0.93em; margin: 0; line-height: 1.6; }\n .ms-warranty strong { color: #ffffff; }\n .ms-fitment { list-style: none; margin: 14px 0 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }\n @media (max-width: 560px) { .ms-fitment { grid-template-columns: 1fr; } }\n .ms-fitment li { font-size: 0.93em; color: #334155; padding: 8px 12px; background: #f0fdf4; border-left: 3px solid #16a34a; border-radius: 0 4px 4px 0; }\n .ms-divider { border: none; border-top: 1px solid #e2e8f0; margin: 32px 0; }\n .ms-langboard { font-weight: 700; color: #14532d; }\n\u003c\/style\u003e\n\u003cdiv class=\"ms-wrap\"\u003e\n\u003c!-- HERO --\u003e\n\u003cdiv class=\"ms-hero\"\u003e\n\u003cspan class=\"ms-hero-badge\"\u003eMicro Series | GUS-15 | Enclosure Only\u003c\/span\u003e\n\u003ch2\u003eA Shallow 15\" Built Around Real Engineering.\u003cbr\u003e1.42 cu ft. Exactly Right.\u003c\/h2\u003e\n\u003cp\u003eThe ResoNix GUS-15 produces 1,500 watts RMS from 5.93 inches of mounting depth with Klippel-verified Xmax of 25.89mm. ResoNix publishes a 0.707 Qtc target of 1.35 cubic feet. Add the driver's 0.072 cubic foot displacement and the correct gross build volume is 1.422 cu ft. This enclosure delivers 1.42 cubic feet net, the most structurally demanding, highest-power single-driver build in the Proline X Micro Series.\u003c\/p\u003e\n\u003cdiv class=\"ms-hero-stats\"\u003e\n\u003cdiv class=\"ms-stat\"\u003e\n\u003cspan class=\"ms-stat-num\"\u003e1.42\u003c\/span\u003e \u003cspan class=\"ms-stat-label\"\u003eCu Ft Net: Displacement Correct\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ms-stat\"\u003e\n\u003cspan class=\"ms-stat-num\"\u003e8.25\"\u003c\/span\u003e \u003cspan class=\"ms-stat-label\"\u003eTotal Depth\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ms-stat\"\u003e\n\u003cspan class=\"ms-stat-num\"\u003e17.11\u003c\/span\u003e \u003cspan class=\"ms-stat-label\"\u003eDriver Fs (Hz)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ms-stat\"\u003e\n\u003cspan class=\"ms-stat-num\"\u003e1,500W\u003c\/span\u003e \u003cspan class=\"ms-stat-label\"\u003eDriver RMS Rating\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ENCLOSURE ONLY NOTICE --\u003e\n\u003cdiv class=\"ms-alert\"\u003e\n\u003cstrong\u003eEnclosure only.\u003c\/strong\u003e The ResoNix GUS-15 subwoofer is not included and must be purchased separately from ResoNix Sound Solutions. This enclosure is designed exclusively for the GUS-15, the cutout geometry and volume target are specific to this driver.\u003c\/div\u003e\n\u003c!-- SECTION 1: Volume Math --\u003e\n\u003cdiv class=\"ms-section\"\u003e\n\u003ch3\u003e1.42 cu ft: How the Volume Was Calculated\u003c\/h3\u003e\n\u003cp\u003eResoNix recommends 1.35 cubic feet of net acoustic airspace for the GUS-15 to achieve 0.707 Qtc. The GUS-15 has a published driver displacement of 0.072 cubic feet. Building to a gross volume of 1.35 cubic feet and installing the driver would leave only 1.278 cubic feet net. Noticeably below the recommendation. The correct build target is 1.35 + 0.072 = 1.422 cubic feet gross, so that after driver displacement is subtracted the driver sees exactly 1.35 cubic feet of net acoustic airspace.\u003c\/p\u003e\n\u003cp\u003eThis enclosure delivers \u003cstrong\u003e1.42 cubic feet net\u003c\/strong\u003e after displacement. Matching ResoNix's acoustic volume recommendation accurately. The 1.42 figure is the net acoustic volume the driver sees, not the gross box volume before displacement is accounted for.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- SECTION 2: Driver Context --\u003e\n\u003cdiv class=\"ms-section\"\u003e\n\u003ch3\u003eThe GUS-15 in a Sealed Enclosure: What the Numbers Mean\u003c\/h3\u003e\n\u003cp\u003eThe GUS-15's published T\/S parameters (D4 variant) show Fs at 17.11 Hz and Qts at 0.34. At 1.35 cubic feet sealed, the system Qtc targets 0.707. Flat anechoic response extending well below 20 Hz. The 15\" cone area (Sd of 804.25 cm²) combined with 25.89mm of Klippel-verified one-way Xmax produces a displacement volume that translates directly to output. A 15\" driver at this Xmax in the correct sealed enclosure delivers low-frequency output that no shallow 12\", including the GUS-12, can match at the same power level.\u003c\/p\u003e\n\u003cp\u003eLike the GUS-12, this is an SQ-oriented driver engineered for accuracy and deep extension. The 0.707 Qtc alignment produces a flat anechoic response with the low-frequency reach the driver's motor and suspension are designed to deliver. In a vehicle cabin, boundary gain below 80 Hz reinforces the driver's deep extension in the listening position. The GUS-15 in this enclosure is the most capable shallow-mount bass system available at this depth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- SECTION 3: Construction --\u003e\n\u003cdiv class=\"ms-section\"\u003e\n\u003ch3\u003e1,500W RMS Demands a Different Level of Construction\u003c\/h3\u003e\n\u003cp\u003eAt 1,500 watts RMS the GUS-15 generates more internal pressure than any other single driver in the Micro Series lineup by a significant margin. The front baffle is a double-layer stack-fab build, two CNC-cut Langboard Elite MDF panels bonded to 1.5 inches total thickness. The stack-fab assembly is further reinforced with dowels throughout the build, adding mechanical alignment and shear resistance at every panel joint beyond what layer adhesion alone provides.\u003c\/p\u003e\n\u003cp\u003eThe 8.25-inch total depth gives panel walls more inherent geometric rigidity than the ultra-shallow builds in this series, but at 1,500 watts the increased excursion load and cone area of a 15\" driver means the structural demands on every panel and joint are correspondingly higher. Langboard Elite MDF at 200 psi internal bond and 410,000 psi MOE is the correct panel spec for this application, not because it is the cheapest option that passes, but because it is the named, documented spec that holds under sustained high-power use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- WHY CARDS --\u003e\n\u003cdiv class=\"ms-card-grid\"\u003e\n\u003cdiv class=\"ms-card\"\u003e\n\u003cspan class=\"ms-card-label\"\u003eVolume\u003c\/span\u003e\n\u003ch4\u003e1.42 cu ft Net: 1.35 Target + 0.072 Displacement\u003c\/h4\u003e\n\u003cdiv class=\"ms-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eResoNix's 0.707 Qtc target is \u003cstrong\u003e1.35 cu ft net\u003c\/strong\u003e. GUS-15 driver displacement is \u003cstrong\u003e0.072 cu ft\u003c\/strong\u003e. This enclosure is built to 1.35 + 0.072 = 1.422 gross volume, delivering exactly 1.35 cu ft net acoustic airspace after the driver is installed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ms-card\"\u003e\n\u003cspan class=\"ms-card-label\"\u003eOutput\u003c\/span\u003e\n\u003ch4\u003eKlippel-Verified 25.89mm Xmax: 15\" Cone Area\u003c\/h4\u003e\n\u003cdiv class=\"ms-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eXmax of \u003cstrong\u003e25.89mm at BL 70%\u003c\/strong\u003e across a \u003cstrong\u003e804.25 cm² effective cone area\u003c\/strong\u003e: the combination that defines real-world output capability. This is measured performance on a Klippel LSI system, not a manufacturer Xmax claim.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ms-card\"\u003e\n\u003cspan class=\"ms-card-label\"\u003eBaffle\u003c\/span\u003e\n\u003ch4\u003e1.5\" Double-Layer: Dowel Reinforced Stack Fab\u003c\/h4\u003e\n\u003cdiv class=\"ms-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eTwo bonded layers of \u003cstrong\u003eLangboard Elite 3\/4\" MDF\u003c\/strong\u003e at 1.5 inches total, further reinforced with \u003cstrong\u003edowels throughout the stack-fab assembly\u003c\/strong\u003e. At 1,500 watts RMS, baffle resonance and panel flex are structural failure modes. This construction eliminates both.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ms-card\"\u003e\n\u003cspan class=\"ms-card-label\"\u003eMounting\u003c\/span\u003e\n\u003ch4\u003e8\/32 Threaded Inserts: Machine Screws Included\u003c\/h4\u003e\n\u003cdiv class=\"ms-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe baffle is fitted with \u003cstrong\u003e8\/32 threaded inserts\u003c\/strong\u003e on the back face. Stainless machine screws are included. The GUS-15 mounts to steel, not MDF. Consistent clamping force at all mounting points, no stripping under sustained 1,500-watt operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ms-card\"\u003e\n\u003cspan class=\"ms-card-label\"\u003eWiring\u003c\/span\u003e\n\u003ch4\u003eProline X Terminal Cup: Pre-Wired with 12g OFC\u003c\/h4\u003e\n\u003cdiv class=\"ms-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eProline X terminal cup\u003c\/strong\u003e is installed and pre-wired with \u003cstrong\u003e12-gauge OFC\u003c\/strong\u003e internally. Connect your amplifier run to the terminal and mount the driver. ResoNix recommends 10-gauge speaker wire from terminal to driver at 1Ω loads to maintain damping factor. Factor this into your wiring plan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ms-card\"\u003e\n\u003cspan class=\"ms-card-label\"\u003eCutout\u003c\/span\u003e\n\u003ch4\u003eDirect-Fit: Machined for the GUS-15\u003c\/h4\u003e\n\u003cdiv class=\"ms-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe baffle cutout is machined to the \u003cstrong\u003eGUS-15's mounting diameter\u003c\/strong\u003e. The driver seals against its included rubber mounting ring gasket and mounts to the threaded inserts, no shimming, trimming, or gasketing tape required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ms-card\"\u003e\n\u003cspan class=\"ms-card-label\"\u003eConfiguration\u003c\/span\u003e\n\u003ch4\u003eFront-Firing or Downfiring: Feet Included\u003c\/h4\u003e\n\u003cdiv class=\"ms-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eRubber feet for \u003cstrong\u003edownfiring installation\u003c\/strong\u003e are included. The GUS-15's vented rear cone assembly allows the pole vent to be fully obstructed without acoustic penalty. Downfire in a tight install is viable. ResoNix notes minimal real-world difference between orientations; choose based on install practicality.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ms-card\"\u003e\n\u003cspan class=\"ms-card-label\"\u003eAcoustic\u003c\/span\u003e\n\u003ch4\u003ePolyfill Pre-Installed\u003c\/h4\u003e\n\u003cdiv class=\"ms-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003ePolyfill is factory-installed. It acoustically dampens internal panel reflections without artificially altering volume. \u003cstrong\u003eFactory installation\u003c\/strong\u003e ensures consistent packing density across every unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ms-card\"\u003e\n\u003cspan class=\"ms-card-label\"\u003eReinforcement\u003c\/span\u003e\n\u003ch4\u003eDowel-Reinforced Stack Fab, 1,500W Structural Standard\u003c\/h4\u003e\n\u003cdiv class=\"ms-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eDowels throughout the stack-fab assembly add mechanical alignment and shear resistance at panel joints independent of adhesive condition. At 1,500 watts RMS the lateral and outward forces on panel joints are the highest of any single-driver build in this series. \u003cstrong\u003estack-fab construction + adhesive + dowels\u003c\/strong\u003e: all three systems working together.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- HIGHLIGHT --\u003e\n\u003cdiv class=\"ms-highlight\"\u003e\n\u003ch3\u003eReady to Mount. Ready to Wire. Built for Active Systems.\u003c\/h3\u003e\n\u003cp\u003eThe enclosure ships fully prepped. The \u003cstrong\u003eProline X terminal cup\u003c\/strong\u003e is installed and pre-wired with 12-gauge OFC. Connect your amplifier run and wiring is complete. The double-layer baffle uses \u003cstrong\u003e8\/32 threaded inserts\u003c\/strong\u003e with stainless machine screws included. \u003cstrong\u003eRubber feet for downfiring\u003c\/strong\u003e are included. Polyfill is factory-installed. Minimum front clearance for the GUS-15 is 33mm. Confirm this against your install location before mounting.\u003c\/p\u003e\n\u003ch3\u003eImpedance Options: D2 and D4\u003c\/h3\u003e\n\u003cp\u003eThe GUS-15 is available as a \u003cstrong\u003eDual 2-ohm (D2)\u003c\/strong\u003e and \u003cstrong\u003eDual 4-ohm (D4)\u003c\/strong\u003e. D2 T\/S parameters are not yet finalized by ResoNix. D4 data is published and is the basis for this enclosure's volume calculation. Wire the D4 parallel for 2 ohms, series for 8 ohms. Wire the D2 parallel for 1 ohm, series for 4 ohms. At 1 ohm, use an amplifier explicitly rated for sustained 1-ohm operation. At 2 ohms, target a monoblock delivering 1,000–1,500 watts RMS. Do not exceed 1,500 watts RMS. ResoNix is explicit that overpower damage is not covered under warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- FITMENT --\u003e\n\u003cdiv class=\"ms-section\"\u003e\n\u003ch3\u003eWhere It Fits\u003c\/h3\u003e\n\u003cp\u003eAt 28\" × 17.5\" × 8.25\" and roughly 40+ lbs, this is the largest enclosure in the Micro Series. The 8.25\" depth is what makes it viable in locations a conventional 1.35 cu ft sealed 15\" box, typically 14–18\" deep, cannot reach. Measure carefully before ordering:\u003c\/p\u003e\n\u003cul class=\"ms-fitment\"\u003e\n\u003cli\u003eTrunk floor: full-size sedans, sport sedans, wagons\u003c\/li\u003e\n\u003cli\u003eFlat cargo floor: mid-size and full-size SUVs\u003c\/li\u003e\n\u003cli\u003eBehind-seat: full-size crew cab trucks with rear seat removed\u003c\/li\u003e\n\u003cli\u003eUnder rear bench: full-size SUVs and vans\u003c\/li\u003e\n\u003cli\u003eSQ competition builds, where depth is the constraint and output is the goal\u003c\/li\u003e\n\u003cli\u003eHigh-output daily builds: systems targeting maximum extension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- WARRANTY --\u003e\n\u003cdiv class=\"ms-warranty\"\u003e\n\u003cdiv class=\"ms-warranty-badge\"\u003e2-Year Warranty\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eAll Proline X Micro Series enclosures carry a two-year manufacturer's warranty\u003c\/strong\u003e against defects in materials and workmanship. Built and inspected in our Tullahoma, Tennessee facility before shipment. Contact Audio Intensity directly for warranty support.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr class=\"ms-divider\"\u003e\n\u003cdiv class=\"ms-section\"\u003e\n\u003ch3\u003eMade in Tennessee\u003c\/h3\u003e\n\u003cp\u003eEvery Proline X Micro Series enclosure is CNC-cut and hand-assembled in Tullahoma, Tennessee on ShopSabre CNC routers. Internal volume, cutout geometry, baffle layer count, dowel placement, and terminal positioning are all held to spec on every unit. \u003cspan class=\"ms-langboard\"\u003eLangboard Elite MDF\u003c\/span\u003e throughout: named, mill-documented, published density and bond specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ============================================================\n SPECS TABLE — drop into Specifications metafield\n ============================================================ --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- ============================================================\n CHEAT SHEET — drop into Quick Specs metafield\n ============================================================ --\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":43172508860505,"sku":"M15-S Gus","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-micro-series-15-sealed-enclosure-fits-resonix-gus-15subwoofer-enclosuresproline-x-8488636.webp?v=1778784609"},{"product_id":"proline-x-micro-series-dual-15-sealed-enclosure-fits-resonix-gus-15","title":"Proline X Micro Series Dual 15\" Sealed Enclosure | Built for ResoNix GUS-15","description":"\u003c!-- ============================================================\n     PROLINE X MICRO SERIES: Dual ResoNix GUS-15\n     SEALED DUAL 15\" ENCLOSURE ONLY\n     SKU: M15D-S GUS\n     External: 38\" W x 12\" H x 18\" D (downfire orientation, before 1.75\" feet)\n     Weight: 75 lbs\n     Gross volume: 2.85 cu ft (1.425 cu ft per chamber)\n     Acoustic net per driver: 1.35 cu ft after 0.072 cu ft displacement\n     ============================================================ --\u003e\n\n\u003cstyle\u003e\n  .ms-wrap * { box-sizing: border-box; }\n  .ms-wrap { font-family: inherit; color: #1e293b; line-height: 1.7; max-width: 1200px; margin: 0 auto; }\n\n  .ms-hero {\n    background: linear-gradient(135deg, #0f172a 0%, #14532d 100%);\n    border-radius: 8px;\n    padding: 40px 36px;\n    margin-bottom: 32px;\n    position: relative;\n    overflow: hidden;\n  }\n  .ms-hero::before {\n    content: '';\n    position: absolute;\n    top: -40px; right: -40px;\n    width: 220px; height: 220px;\n    background: rgba(22,163,74,0.12);\n    border-radius: 50%;\n    z-index: 0;\n  }\n  .ms-hero-badges {\n    position: relative;\n    z-index: 1;\n    text-align: center;\n    margin-bottom: 28px;\n  }\n  .ms-hero-middle {\n    position: relative;\n    z-index: 1;\n    display: grid;\n    grid-template-columns: 60% 40%;\n    gap: 32px;\n    align-items: center;\n    margin-bottom: 32px;\n  }\n  .ms-hero-text { }\n  .ms-hero-image {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n  }\n  .ms-hero-image img {\n    max-width: 100%;\n    height: auto;\n    border-radius: 6px;\n    display: block;\n  }\n  @media (max-width: 560px) {\n    .ms-hero-middle { grid-template-columns: 1fr; 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}\n  .ms-stat { text-align: center; }\n  .ms-stat-num { display: block; color: #86efac; font-size: 1.5em; font-weight: 800; line-height: 1; }\n  .ms-stat-label { display: block; color: #94a3b8; font-size: 0.72em; letter-spacing: 0.08em; text-transform: uppercase; margin-top: 4px; }\n\n  .ms-section {\n    background: #ffffff;\n    border: 1px solid #e2e8f0;\n    border-top: 4px solid #16a34a;\n    border-radius: 6px;\n    padding: 28px 36px;\n    margin-bottom: 24px;\n  }\n  .ms-section:nth-child(odd) { background: #f8fafc; }\n  .ms-section h3 { color: #14532d; font-size: 1.15em; font-weight: 700; margin: 0 0 14px 0; }\n  .ms-section p { color: #334155; font-size: 0.97em; margin: 0 0 12px 0; }\n  .ms-section p:last-child { margin-bottom: 0; }\n\n  .ms-highlight {\n    background: #f0fdf4;\n    border-left: 5px solid #16a34a;\n    padding: 22px 36px;\n    margin: 28px 0;\n    border-radius: 0 6px 6px 0;\n  }\n  .ms-highlight h3 { color: #14532d; margin: 0 0 10px 0; font-size: 1.1em; font-weight: 700; }\n  .ms-highlight h3 + h3 { margin-top: 18px; }\n  .ms-highlight p { margin-bottom: 10px; color: #1e293b; font-size: 0.97em; }\n  .ms-highlight p:last-child { margin-bottom: 0; }\n\n  .ms-alert {\n    background: #dcfce7;\n    border: 1px solid #16a34a;\n    border-radius: 6px;\n    padding: 16px 36px;\n    margin: 20px 0;\n    font-size: 0.93em;\n    color: #166534;\n  }\n  .ms-alert strong { color: #14532d; }\n\n  .ms-shipping {\n    background: #fef3c7;\n    border: 1px solid #d97706;\n    border-radius: 6px;\n    padding: 16px 36px;\n    margin: 20px 0;\n    font-size: 0.93em;\n    color: #78350f;\n  }\n  .ms-shipping strong { color: #78350f; }\n\n  .ms-strongest {\n    background: linear-gradient(135deg, #14532d 0%, #16a34a 100%);\n    border-radius: 8px;\n    padding: 32px 36px;\n    margin: 32px 0;\n    text-align: center;\n  }\n  .ms-strongest h3 { color: #ffffff; font-size: 1.4em; font-weight: 800; margin: 0 0 12px 0; letter-spacing: 0.02em; }\n  .ms-strongest p { color: #dcfce7; font-size: 1em; margin: 0; line-height: 1.6; max-width: 800px; margin-left: auto; margin-right: auto; }\n\n  .ms-wiring { background: #0f172a; border-radius: 6px; padding: 24px 36px; margin: 24px 0; }\n  .ms-wiring h3 { color: #86efac; font-size: 1em; font-weight: 700; margin: 0 0 16px 0; letter-spacing: 0.05em; text-transform: uppercase; }\n  .ms-wiring-row { display: flex; align-items: center; gap: 14px; padding: 10px 0; border-bottom: 1px solid #1e293b; }\n  .ms-wiring-row:last-child { border-bottom: none; padding-bottom: 0; }\n  .ms-wiring-load { background: #16a34a; color: #ffffff; font-size: 1.1em; font-weight: 800; padding: 8px 16px; border-radius: 4px; min-width: 90px; text-align: center; flex-shrink: 0; white-space: nowrap; }\n  .ms-wiring-desc { color: #cbd5e1; font-size: 0.93em; line-height: 1.5; flex: 1; }\n  .ms-wiring-desc strong { color: #ffffff; }\n\n  .ms-card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin: 24px 0; }\n  @media (max-width: 600px) { .ms-card-grid { grid-template-columns: 1fr; } }\n  .ms-card { background: #ffffff; border: 1px solid #e2e8f0; border-top: 3px solid #16a34a; border-radius: 6px; padding: 22px; }\n  .ms-card-label { display: inline-block; background: #16a34a; color: #ffffff; font-size: 0.68em; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 3px 10px; border-radius: 3px; margin-bottom: 10px; }\n  .ms-card h4 { color: #14532d; font-size: 1em; font-weight: 700; margin: 0 0 10px 0; }\n  .ms-card-divider { height: 2px; background: #16a34a; width: 32px; margin-bottom: 12px; border-radius: 2px; }\n  .ms-card p { font-size: 0.93em; color: #475569; margin: 0; line-height: 1.65; }\n  .ms-card p strong { color: #14532d; }\n\n  .ms-warranty {\n    background: #0f172a;\n    border-left: 5px solid #16a34a;\n    border-radius: 0 6px 6px 0;\n    padding: 20px 36px;\n    margin: 28px 0;\n    display: flex;\n    align-items: center;\n    gap: 20px;\n  }\n  .ms-warranty-badge { background: #16a34a; color: #ffffff; font-size: 1em; font-weight: 800; padding: 10px 16px; border-radius: 4px; white-space: nowrap; }\n  .ms-warranty p { color: #cbd5e1; font-size: 0.93em; margin: 0; line-height: 1.6; }\n  .ms-warranty strong { color: #ffffff; }\n\n  .ms-fitment { list-style: none; margin: 14px 0 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }\n  @media (max-width: 560px) { .ms-fitment { grid-template-columns: 1fr; } }\n  .ms-fitment li { font-size: 0.93em; color: #334155; padding: 8px 12px; background: #f0fdf4; border-left: 3px solid #16a34a; border-radius: 0 4px 4px 0; }\n  .ms-divider { border: none; border-top: 1px solid #e2e8f0; margin: 32px 0; }\n  .ms-langboard { font-weight: 700; color: #14532d; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"ms-wrap\"\u003e\n\n  \u003c!-- HERO --\u003e\n  \u003cdiv class=\"ms-hero\"\u003e\n    \u003cdiv class=\"ms-hero-badges\"\u003e\n      \u003cspan class=\"ms-hero-badge\"\u003eMicro Series | Dual GUS-15 | Enclosure Only\u003c\/span\u003e\u003cspan class=\"ms-hero-revision\"\u003eDesign Revision 5.20.26\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"ms-hero-middle\"\u003e\n      \u003cdiv class=\"ms-hero-text\"\u003e\n        \u003ch2\u003eThe Strongest Micro Series Enclosure We Build.\u003cbr\u003eDual GUS-15. Dual Chamber. 3,000W Combined.\u003c\/h2\u003e\n        \u003cp\u003eTwo ResoNix GUS-15 drivers in separate, acoustically isolated sealed chambers. Each chamber delivers exactly 1.35 cubic feet of net acoustic airspace per driver, hitting ResoNix's published 0.707 Qtc target precisely. Built with 1-inch walls, a double-face 1.5-inch flush-mount baffle, and internal bracing scaled to 3,000 watts RMS combined. This is the strongest, heaviest, and highest-output enclosure in the Proline X Micro Series lineup.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"ms-hero-image\"\u003e\n        \u003cimg src=\"https:\/\/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\" alt=\"Proline X Micro Series dual 15-inch sealed enclosure for ResoNix GUS-15\"\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"ms-hero-stats\"\u003e\n      \u003cdiv class=\"ms-stat\"\u003e\n        \u003cspan class=\"ms-stat-num\"\u003e1.35\u003c\/span\u003e\n        \u003cspan class=\"ms-stat-label\"\u003eCu Ft Net Per Driver\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"ms-stat\"\u003e\n        \u003cspan class=\"ms-stat-num\"\u003e75\u003c\/span\u003e\n        \u003cspan class=\"ms-stat-label\"\u003eLbs Finished Weight\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"ms-stat\"\u003e\n        \u003cspan class=\"ms-stat-num\"\u003e3,000W\u003c\/span\u003e\n        \u003cspan class=\"ms-stat-label\"\u003eCombined RMS Rating\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"ms-stat\"\u003e\n        \u003cspan class=\"ms-stat-num\"\u003eDual\u003c\/span\u003e\n        \u003cspan class=\"ms-stat-label\"\u003eChamber, Isolated\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- STRONGEST CALLOUT --\u003e\n  \u003cdiv class=\"ms-strongest\"\u003e\n    \u003ch3\u003eThe Strongest Enclosure in the Micro Series\u003c\/h3\u003e\n    \u003cp\u003e1-inch walls. Double-face 1.5-inch flush-mount baffle. Internal bracing scaled to 3,000 watts RMS combined driver output. Chamber divider CNC-cut to full wall thickness. Two independent terminal cups. Every structural element scaled up from the standard Micro Series spec. This is the enclosure we build when the driver combination and power level demand it.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ENCLOSURE ONLY NOTICE --\u003e\n  \u003cdiv class=\"ms-alert\"\u003e\n    \u003cstrong\u003eEnclosure only.\u003c\/strong\u003e ResoNix GUS-15 subwoofers are not included and must be purchased separately from ResoNix Sound Solutions. Both the D2 and D4 variants fit this enclosure. Select the impedance variant that matches your amplifier's stable load before ordering.\n  \u003c\/div\u003e\n\n  \u003c!-- SHIPPING NOTICE --\u003e\n  \u003cdiv class=\"ms-shipping\"\u003e\n    \u003cstrong\u003eFreight shipping applies.\u003c\/strong\u003e This enclosure ships at 75 pounds finished weight in the shipping crate. Standard ground shipping rates do not apply. Freight shipping is calculated at checkout based on delivery address. Contact Audio Intensity directly for freight quotes on residential deliveries with lift gate requirements.\n  \u003c\/div\u003e\n\n  \u003c!-- SECTION 1: Volume --\u003e\n  \u003cdiv class=\"ms-section\"\u003e\n    \u003ch3\u003e1.35 cu ft Net Acoustic Per Driver: Exactly ResoNix's 0.707 Qtc Target\u003c\/h3\u003e\n    \u003cp\u003eResoNix publishes a 0.707 Qtc target of 1.35 cubic feet of net acoustic airspace for the GUS-15. The GUS-15 has a driver displacement of 0.072 cubic feet. Each chamber in the M15D-S GUS is built to a gross internal volume that delivers 1.35 cubic feet of net acoustic airspace after the driver is installed. Both chambers are identical. Both drivers see identical acoustic conditions. Both produce identical T\/S response curves.\u003c\/p\u003e\n    \u003cp\u003eThis is exactly double the acoustic volume of the single M15-S GUS enclosure, by design. Each driver in this dual build gets the same acoustic environment a single GUS-15 gets in the single-driver enclosure. The dual configuration produces roughly 3 dB more low-frequency output than a single GUS-15 at equivalent power, and combined thermal capacity is 3,000 watts RMS. This is the highest-output single enclosure in the Proline X Micro Series lineup.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SECTION 2: Back-of-napkin math --\u003e\n  \u003cdiv class=\"ms-section\"\u003e\n    \u003ch3\u003e\"If I Do the Math on the External Dimensions, the Volume Looks Too Big\"\u003c\/h3\u003e\n    \u003cp\u003eThis is the most common question we get on Micro Series enclosures. The math customers run looks like this: external dimensions of 38\" × 12\" × 18\" subtract 1\" walls on all six sides (the M15D-S uses 1-inch walls, not 3\/4\"), leaving an assumed internal cavity of 36\" × 10\" × 16\". That works out to 5,760 cubic inches, or roughly 3.33 cubic feet. The listed total net acoustic volume is 2.70 cubic feet (1.35 per chamber × 2 chambers), a difference of about 0.63 cu ft, which looks like the enclosure must be oversized by about 23%.\u003c\/p\u003e\n    \u003cp\u003eThat math assumes five things that are not true on a Proline X dual-chamber stack-fab enclosure:\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003e1. The walls are not 1-inch on every side.\u003c\/strong\u003e The front baffle is a double-face flush-mount build at 1.5 inches thick, thicker than the exterior walls. That alone removes more internal depth than a 1-inch calculation accounts for.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003e2. The enclosure is not a perfect rectangle.\u003c\/strong\u003e Viewed from above, all four corners are radiused at 3 inches. This is a deliberate design choice for two reasons: the rounded corners break up the parallel-wall geometry that creates internal standing waves, and they produce a finished shape that fits cleanly against vehicle interior surfaces without sharp corners catching on trim or upholstery. The 3\" radii remove measurable internal volume that an external-minus-walls calculation assumes is open airspace.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003e3. The chamber divider takes up internal volume.\u003c\/strong\u003e A full CNC-cut chamber divider at 1-inch thickness separates the two driver chambers completely. That divider itself displaces internal volume that a single-cavity calculation ignores.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003e4. The area directly behind each driver's magnet is precision-milled.\u003c\/strong\u003e This is a deliberate engineering step that serves two purposes. First, it allows us to make fine volume adjustments to hit the target airspace exactly. Second, and more importantly, it increases the open area immediately behind each driver's rear vent. The GUS-15's pole vent is part of the driver's voice coil cooling system. Air flows through the vent during cone movement, carrying heat away from the voice coil former. If the area immediately behind the vent is restricted, backpressure builds against that airflow and voice coil cooling is compromised. Most enclosure manufacturers do not understand this airflow dynamic, and even fewer engineer around it. We do.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003e5. Each driver displaces 0.072 cubic feet of internal airspace once installed.\u003c\/strong\u003e Two drivers displace 0.144 cubic feet total. This is not subtracted from a back-of-napkin external calculation, but it is subtracted from what the drivers acoustically load into.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eHow we actually calculate volume.\u003c\/strong\u003e Our engineering approach is built on precision, and it is different from how most enclosure manufacturers calculate airspace and different from the math any customer can do from external dimensions. A Proline X stack-fab enclosure is built from individually CNC-cut layers, each with its own machined opening. We calculate the precise internal volume of every layer's opening on both sides of the chamber divider, then sum those layer-by-layer volumes to arrive at the actual net airspace inside each assembled chamber. No one else in this industry calculates net volume this way. It is the only method that produces a genuinely accurate account of the airspace each driver sees once the enclosure is built. The 1.35 cubic foot per-driver figure is exact, not approximate.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SECTION 3: Construction --\u003e\n  \u003cdiv class=\"ms-section\"\u003e\n    \u003ch3\u003e1\" Walls. 1.5\" Flush-Mount Double-Face Baffle. Chamber Divider. Internal Bracing.\u003c\/h3\u003e\n    \u003cp\u003eThe M15D-S GUS is constructed to a different structural standard than the rest of the Micro Series. The exterior walls are \u003cstrong\u003e1-inch thick Langboard Elite MDF\u003c\/strong\u003e, thicker than the standard 3\/4\" panels used elsewhere in the series. Panel rigidity scales with the cube of thickness, so moving from 3\/4\" to 1-inch produces a substantially stiffer wall than the numerical difference alone suggests. At 3,000 watts RMS combined driver output, the structural demands justify the additional thickness across the entire enclosure shell.\u003c\/p\u003e\n    \u003cp\u003eThe front baffle is a \u003cstrong\u003edouble-face 1.5-inch build\u003c\/strong\u003e: two bonded layers of Langboard Elite combined into a single rigid panel. Both GUS-15 drivers are \u003cstrong\u003eflush-mounted\u003c\/strong\u003e into the 1.5-inch baffle, with the mounting cutouts CNC-machined to sit each driver's flange perfectly flush with the baffle surface. Flush-mounting eliminates the frame-lip resonance that surface-mounted drivers can develop at high-excursion listening levels, and it produces a cleaner airflow path across the front of the cones.\u003c\/p\u003e\n    \u003cp\u003eThe chamber divider is CNC-cut at the same 1-inch thickness as the exterior walls. Additional internal bracing is integrated into the panel layering to control diaphragm-driven wall flex under sustained high-power operation. The stack-fab assembly is reinforced with dowels throughout, adding between-layer tension reinforcement that locks the panel stack against shear movement. Both chambers maintain their acoustic isolation independently under sustained 3,000-watt combined operation.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- IMPEDANCE BLOCK --\u003e\n  \u003cdiv class=\"ms-wiring\"\u003e\n    \u003ch3\u003eImpedance Wiring: Two Separate Terminal Cups\u003c\/h3\u003e\n    \u003cdiv class=\"ms-wiring-row\"\u003e\n      \u003cdiv class=\"ms-wiring-load\"\u003eSETUP\u003c\/div\u003e\n      \u003cdiv class=\"ms-wiring-desc\"\u003e\n\u003cstrong\u003eEach chamber has its own dedicated terminal cup.\u003c\/strong\u003e Wire each driver independently from its own terminal cup. The final system impedance depends on whether you run each driver from a separate amplifier channel or bridge both into a single amp. Both terminals must present a load the amplifier can handle.\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"ms-wiring-row\"\u003e\n      \u003cdiv class=\"ms-wiring-load\"\u003eD4\u003c\/div\u003e\n      \u003cdiv class=\"ms-wiring-desc\"\u003e\n\u003cstrong\u003ePer driver: parallel = 2Ω, series = 8Ω.\u003c\/strong\u003e For a stereo monoblock or dual-amp setup, each amp sees 2Ω from its driver. For external bridging into one amp, calculate the bridged load accordingly.\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"ms-wiring-row\"\u003e\n      \u003cdiv class=\"ms-wiring-load\"\u003eD2\u003c\/div\u003e\n      \u003cdiv class=\"ms-wiring-desc\"\u003e\n\u003cstrong\u003ePer driver: parallel = 1Ω, series = 4Ω.\u003c\/strong\u003e D2 T\/S parameters not yet finalized by ResoNix. Confirm before selecting D2 variant. Plan amplifier impedance handling carefully. Sustained 1Ω operation requires explicit amplifier rating.\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- WHY CARDS --\u003e\n  \u003cdiv class=\"ms-card-grid\"\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003eVolume\u003c\/span\u003e\n      \u003ch4\u003e1.35 cu ft Net Per Driver: ResoNix's 0.707 Qtc Target\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eEach chamber is built to deliver \u003cstrong\u003e1.35 cu ft of net acoustic airspace per driver\u003c\/strong\u003e after the GUS-15's 0.072 cu ft displacement is accounted for. Both chambers identical. Both drivers load correctly. ResoNix's target hit precisely, not approximately.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003eOutput\u003c\/span\u003e\n      \u003ch4\u003e3,000W RMS Combined: Highest in the Micro Series\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eTwo GUS-15 drivers at \u003cstrong\u003e1,500W RMS each\u003c\/strong\u003e with \u003cstrong\u003e25.89mm Klippel-verified Xmax\u003c\/strong\u003e per driver. Combined cone displacement across \u003cstrong\u003e1,608 cm² of effective area\u003c\/strong\u003e. The maximum-output enclosure in the Proline X Micro Series lineup.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003eWalls\u003c\/span\u003e\n      \u003ch4\u003e1\" Langboard Elite: Thicker Than Standard Micro Series\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eExternal walls are \u003cstrong\u003e1-inch thick Langboard Elite MDF\u003c\/strong\u003e, thicker than the 3\/4\" used elsewhere in the series. Panel rigidity scales with the cube of thickness, not linearly. At 3,000W RMS the additional thickness is structurally required.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003eBaffle\u003c\/span\u003e\n      \u003ch4\u003e1.5\" Double-Face Flush-Mount Baffle\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eTwo bonded layers of Langboard Elite combined into a \u003cstrong\u003esingle 1.5-inch rigid panel\u003c\/strong\u003e. Both GUS-15 drivers \u003cstrong\u003eflush-mounted\u003c\/strong\u003e for zero frame-lip resonance and cleaner cone airflow at high excursion. Reinforced with dowels throughout.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003eChambers\u003c\/span\u003e\n      \u003ch4\u003eDual Chamber: 1\" CNC Divider, Independently Sealed\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eA CNC-cut \u003cstrong\u003echamber divider at 1-inch thickness\u003c\/strong\u003e (matching the exterior wall spec) separates both driver volumes completely. Neither GUS-15 shares airspace with the other. Both chambers maintain acoustic isolation under sustained 3,000W operation.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003eTerminals\u003c\/span\u003e\n      \u003ch4\u003eTwo Terminal Cups: One Per Chamber, Independently Wired\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eEach chamber has its own \u003cstrong\u003eProline X ABS\/carbon fiber terminal cup\u003c\/strong\u003e with stainless hardware and copper ring terminals. Pre-wired internally with \u003cstrong\u003e12-gauge OFC\u003c\/strong\u003e to its own driver position. Independent connection paths, no cross-chamber wiring.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003eBracing\u003c\/span\u003e\n      \u003ch4\u003eIntegrated Internal Bracing Throughout\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eInternal bracing is integrated into the CNC-cut panel layering to control \u003cstrong\u003ediaphragm-driven wall flex\u003c\/strong\u003e under sustained high-power operation. Combined with 1-inch walls and the double-face baffle, three independent structural systems resist panel movement.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003eMounting\u003c\/span\u003e\n      \u003ch4\u003e8\/32 Threaded Inserts: Machine Screws for Both Drivers\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eBoth baffle positions are fitted with \u003cstrong\u003e8\/32 threaded inserts\u003c\/strong\u003e. Stainless machine screws included for both GUS-15 drivers. Each driver mounts to steel. Consistent clamping force across all eight mounting points per driver, no stripping at 3,000W sustained load.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003eDownfire\u003c\/span\u003e\n      \u003ch4\u003e1.75\" Downfire Feet Included\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eShips in downfire orientation with \u003cstrong\u003e1.75-inch feet included\u003c\/strong\u003e. Total installed height in downfire mode is 13.75 inches (12\" enclosure height + 1.75\" feet). Feet couple the enclosure to the vehicle floor across the full 38-inch width for even bass distribution.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003eClearance\u003c\/span\u003e\n      \u003ch4\u003e33mm Minimum Front Clearance: Both Drivers\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eResoNix specifies \u003cstrong\u003e33mm minimum clearance\u003c\/strong\u003e between the GUS-15's surround and any surface in front of the driver. Confirm this at both driver positions before finalizing the install. At 25.89mm of Xmax, this clearance is the operating envelope of the suspension. Not optional.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003eCorners\u003c\/span\u003e\n      \u003ch4\u003e3\" Radiused Corners: Organic Shape, Standing Wave Control\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eAll four corners are \u003cstrong\u003eradiused at 3 inches\u003c\/strong\u003e viewed top-down. The organic shape breaks up parallel-wall standing wave geometry inside each chamber and produces a finished form that fits cleanly against vehicle interior surfaces without sharp corners catching on trim.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ms-card\"\u003e\n      \u003cspan class=\"ms-card-label\"\u003ePolyfill\u003c\/span\u003e\n      \u003ch4\u003eWall-Lining Application, Both Chambers\u003c\/h4\u003e\n      \u003cdiv class=\"ms-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003ePolyfill is installed as a \u003cstrong\u003elight wall-lining application\u003c\/strong\u003e in both chambers. This dampens internal panel reflections without artificially increasing apparent acoustic volume. Each chamber's 1.35 cu ft net acoustic airspace per driver is unchanged by the polyfill installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- HIGHLIGHT --\u003e\n  \u003cdiv class=\"ms-highlight\"\u003e\n    \u003ch3\u003eTwo Terminal Cups, Independent Wiring, Maximum Flexibility\u003c\/h3\u003e\n    \u003cp\u003eUnlike the other Micro Series dual builds, the M15D-S GUS uses \u003cstrong\u003etwo separate Proline X terminal cups\u003c\/strong\u003e: one per chamber, each pre-wired to its own driver with 12-gauge OFC. This gives complete flexibility in amplifier configuration. Run each driver from its own monoblock for maximum power and channel separation, or bridge both into a single high-output amplifier with external wiring. Each chamber's terminal is a standalone connection. There is no internal cross-chamber wiring.\u003c\/p\u003e\n    \u003ch3\u003ePlan Your Amplifier Configuration Before Ordering\u003c\/h3\u003e\n    \u003cp\u003eThe GUS-15 is available in \u003cstrong\u003eDual 2Ω (D2)\u003c\/strong\u003e and \u003cstrong\u003eDual 4Ω (D4)\u003c\/strong\u003e configurations. D4 parameters are published. D2 parameters are not yet finalized by ResoNix. For most builds, D4 wired parallel per driver (2Ω each terminal cup) into separate 2Ω-stable monoblocks delivering 1,200 to 1,500 watts RMS per driver is the practical target. Confirm your amplifier strategy before selecting the voice coil variant.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- FITMENT --\u003e\n  \u003cdiv class=\"ms-section\"\u003e\n    \u003ch3\u003eWhere It Fits\u003c\/h3\u003e\n    \u003cp\u003eThe M15D-S GUS is the largest and heaviest enclosure in the Micro Series. External footprint in downfire orientation is 38 inches wide, 12 inches tall (before adding the 1.75-inch downfire feet), and 18 inches deep. Total installed height in downfire mode is 13.75 inches. Measure carefully:\u003c\/p\u003e\n    \u003cul class=\"ms-fitment\"\u003e\n      \u003cli\u003eTruck bed: full-size crew cab and long-bed trucks\u003c\/li\u003e\n      \u003cli\u003eCargo floor: full-size SUVs and vans\u003c\/li\u003e\n      \u003cli\u003eTrunk floor: full-size sedans with wide trunk openings\u003c\/li\u003e\n      \u003cli\u003eBehind-seat: full-size crew cab trucks (verify cab depth)\u003c\/li\u003e\n      \u003cli\u003eSQ competition: maximum dual-driver GUS-15 output\u003c\/li\u003e\n      \u003cli\u003eShow vehicle builds: maximum bass capability at minimum depth\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- WARRANTY --\u003e\n  \u003cdiv class=\"ms-warranty\"\u003e\n    \u003cdiv class=\"ms-warranty-badge\"\u003e2-Year Warranty\u003c\/div\u003e\n    \u003cp\u003e\u003cstrong\u003eAll Proline X Micro Series enclosures carry a two-year manufacturer's warranty\u003c\/strong\u003e against defects in materials and workmanship. Built and inspected in our Tullahoma, Tennessee facility before shipment. Contact Audio Intensity directly for warranty support.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003chr class=\"ms-divider\"\u003e\n\n  \u003cdiv class=\"ms-section\"\u003e\n    \u003ch3\u003eMade in Tennessee\u003c\/h3\u003e\n    \u003cp\u003eEvery Proline X Micro Series enclosure is CNC-cut and hand-assembled in Tullahoma, Tennessee on ShopSabre CNC routers. Chamber volume, divider placement, cutout geometry, layer-by-layer opening dimensions, baffle layer count, dowel placement, terminal positioning, and wall thickness are all held to spec on every unit. \u003cspan class=\"ms-langboard\"\u003eLangboard Elite MDF\u003c\/span\u003e throughout: named, mill-documented, published density and bond specifications.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":43327941804121,"sku":"M15D-S Gus","price":699.99,"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":"proline-x-enclosure-professional-series-fits-prodigy-15-nb5","title":"Professional Series Ported 15\" Enclosure | Prodigy Audio NB5-15","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica 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class=\"df-hero\"\u003e\n  \u003ch2\u003eProfessional Series Ported 15\" Enclosure | Prodigy Audio NB5-15\u003c\/h2\u003e\n  \u003cp\u003eA ported fifteen-inch box built to Prodigy's own published numbers for the NB5-15, bare or loaded\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e3.00 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 33.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTriple 2.25\" baffle\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the Prodigy NB5-15\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 33.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe Prodigy NB5-15 pairs a deep motor with a wide frame, and this cabinet gives it 3.00 cubic feet net, vented at 33.0 Hz through a 48.0 square inch port. F3 lands at 28.6 Hz with 1.55 dB of passband ripple. It is the largest single-driver box in the professional line, and it ships bare with a choice of baffle finish or loaded with the driver already mounted.\u003c\/p\u003e\n  \u003cp\u003eThe port on this box stays clean up to 851 W before the mouth velocity crosses the chuff threshold, against the coil's own 1200 W power rating. Prodigy publish Xmax on a 70 percent BL basis for this driver, and the excursion check behind this build derates that figure further rather than taking the spec sheet number at face value. Ripple across the passband holds at 1.55 dB, and the in-car curve stays tight across the passband rather than peaking at either end.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe cabinet\u003c\/h3\u003e\n  \u003cp\u003e32.00\" W x 17.50\" H x 19.00\" D external, internally braced. It ships as a UPS parcel; the price includes shipping in the 48 states.\u003c\/p\u003e\n  \u003cp\u003eThis is our largest single-driver ported envelope in the professional line, sold bare with a choice of baffle finish or loaded with the NB5-15 already mounted in either coil.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe numbers to respect\u003c\/h3\u003e\n  \u003cp\u003eT\/S for the NB5-15 D2 are Prodigy's own published figures; the D4 version of this coil also fits this cabinet. There are no dimension or tuning conflicts between the Q2 catalog sheet and the store listing on this cabinet.\u003c\/p\u003e\n  \u003cp\u003eThis cabinet is 3.00 cubic feet net, with a slot port of 48.0 square inches tuned to 33.0 Hz; the port stays under the chuff threshold up to 851 W; above that the air at the mouth moves faster than the 17 metres per second where a slot starts to chuff.\u003c\/p\u003e\n  \u003cp\u003eSet a 26 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in place the cone reaches 10.8 mm of its 22.9 mm at 1800 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"None \/ Yes add a NB5 15 D2","offer_id":43814512623705,"sku":"Pro15-P NB5 NA D2","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"None \/ Yes add a NB5 15 D4","offer_id":43814512656473,"sku":"Pro15-P NB5 NA D4","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"None \/ No Thanks","offer_id":43814512689241,"sku":"Pro15-P NB5 NA","price":586.99,"currency_code":"USD","in_stock":true},{"title":"Standard \/ Yes add a NB5 15 D2","offer_id":43814512722009,"sku":"Pro15-P NB5 STD D2","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"Standard \/ Yes add a NB5 15 D4","offer_id":43814512754777,"sku":"Pro15-P NB5 STD D4","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"Standard \/ No Thanks","offer_id":43814512787545,"sku":"Pro15-P NB5 STD","price":616.99,"currency_code":"USD","in_stock":true},{"title":"Hex \u0026 Flag \/ Yes add a NB5 15 D2","offer_id":43814512820313,"sku":"Pro15-P NB5 HXF D2","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"Hex \u0026 Flag \/ Yes add a NB5 15 D4","offer_id":43814512853081,"sku":"Pro15-P NB5 HXF D4","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"Hex \u0026 Flag \/ No Thanks","offer_id":43814512885849,"sku":"Pro15-P NB5 HXF","price":616.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-enclosure-professional-series-fits-prodigy-15-nb5subwoofer-enclosuresproline-x-5697003.png?v=1784976188"},{"product_id":"proline-x-po-15d-s-w-dual-15-sealed-wedge-enclosure-built-for-resonix-gus-15","title":"Performance Optimized Wedge Sealed Dual 15\" Enclosure | ResoNix GUS-15","description":"\u003cdiv 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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 #4a3520 !important;border-top:3px solid #b87333 !important;border-radius:6px;padding:22px;}\n.pow-card-label{display:inline-block;background:#b87333 !important;color:#2a1608 !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:#b87333 !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:#d99058 !important;}\n.pow-table{width:100% !important;border-collapse:collapse;margin:22px 0;font-size:0.94em;}\n.pow-table th{background:#8b5a2b !important;color:#ffffff 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!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\u003ePunchier, 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\u003eBelow Butterworth, softer, 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=\"#4a3520\" stroke-width=\"1\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"210\" y1=\"50\" x2=\"210\" y2=\"350\" stroke=\"#3a2818\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"379\" y1=\"50\" x2=\"379\" y2=\"350\" stroke=\"#3a2818\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"592\" y1=\"50\" x2=\"592\" y2=\"350\" stroke=\"#3a2818\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"881\" y1=\"50\" x2=\"881\" y2=\"350\" stroke=\"#3a2818\" 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=\"#c68a4a\" 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=\"#c68a4a\" 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=\"#d99058\" 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=\"#c68a4a\" 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 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"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\/PO15D-SGUSFront.jpg?v=1787515373"},{"product_id":"proline-x-po-15-s-w-gus-single-15-sealed-wedge-subwoofer-enclosure-built-for-resonix-gus-15","title":"Performance Optimized Wedge Sealed 15\" Enclosure | ResoNix GUS-15","description":"\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:#d99058 !important;}\n.pow-wrap a{color:#c68a4a !important;font-weight:700;text-decoration:underline;}\n.pow-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%) !important;border-radius:8px;padding:32px 28px;margin-bottom:28px;}\n.pow-eyebrow{display:inline-block;color:#d99058 !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(184,115,51,0.18) !important;border:1px solid #b87333 !important;color:#eab784 !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 #3a2818 !important;border-radius:8px;padding:26px 24px;margin:30px 0;}\n.pow-wrap h3{color:#c68a4a !important;font-size:1.22em;font-weight:700;margin:0 0 14px 0;line-height:1.35;}\n.pow-wrap h4{color:#c68a4a !important;font-size:1.02em;font-weight:700;margin:0 0 10px 0;}\n.pow-highlight{background:#0f172a !important;border-left:4px solid #b87333 !important;padding:20px 22px;margin:28px 0;border-radius:0 6px 6px 0;}\n.pow-highlight h3{color:#c68a4a !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:#2f1c0d !important;border:1px solid #b87333 !important;border-radius:6px;padding:14px 18px;margin:22px 0;font-size:0.93em;}\n.pow-alert p{color:#eab784 !important;margin:0;}\n.pow-alert strong{color:#d99058 !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 #4a3520 !important;border-top:3px solid #b87333 !important;border-radius:6px;padding:22px;}\n.pow-card-label{display:inline-block;background:#b87333 !important;color:#2a1608 !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:#b87333 !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:#d99058 !important;}\n.pow-table{width:100% !important;border-collapse:collapse;margin:22px 0;font-size:0.94em;}\n.pow-table th{background:#8b5a2b !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 #3a2818 !important;}\n.pow-table td{padding:10px 14px;border-bottom:1px solid #3a2818 !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:#d99058 !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%,#8b5a2b 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\u003cdiv class=\"pow-wrap\"\u003e\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 \u003cspan class=\"pow-badge\"\u003eQTC 0.687\u003c\/span\u003e \u003cspan class=\"pow-badge\"\u003eTRUNK MOUNT, REAR FIRING\u003c\/span\u003e \u003cspan class=\"pow-badge\"\u003e1500W RMS\u003c\/span\u003e \u003cspan class=\"pow-badge\"\u003eDIRECT FIT GUS-15\u003c\/span\u003e \u003cspan class=\"pow-badge\"\u003eBUILT IN TULLAHOMA, TN\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\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\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\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\n\u003cdiv class=\"pow-card-divider\"\u003e\u003cbr\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\n\u003cdiv class=\"pow-card-divider\"\u003e\u003cbr\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\n\u003cdiv class=\"pow-card-divider\"\u003e\u003cbr\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\n\u003cdiv class=\"pow-card-divider\"\u003e\u003cbr\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\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\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eExternal dimensions are \u003cstrong\u003e23 inches wide by 17.6 inches tall\u003c\/strong\u003e, with depth running \u003cstrong\u003e12.625 inches at the base tapering to 6.25 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\n\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\n\u003c\/div\u003e\n\u003c\/div\u003e\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\u003ctbody\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\u003ePunchier, 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\u003eBelow Butterworth, xmax limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"pow-chartbox\"\u003e\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=\"#4a3520\" stroke-width=\"1\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"210\" y1=\"50\" x2=\"210\" y2=\"350\" stroke=\"#3a2818\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"379\" y1=\"50\" x2=\"379\" y2=\"350\" stroke=\"#3a2818\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"592\" y1=\"50\" x2=\"592\" y2=\"350\" stroke=\"#3a2818\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"881\" y1=\"50\" x2=\"881\" y2=\"350\" stroke=\"#3a2818\" 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=\"#c68a4a\" 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=\"#c68a4a\" 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=\"#d99058\" 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=\"#c68a4a\" 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\u003c\/div\u003e\n\u003cdiv class=\"pow-alert\"\u003e\n\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\n\u003c\/div\u003e\n\u003cdiv class=\"pow-alert\"\u003e\n\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\n\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\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\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 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\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":"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%, #8b5a2b 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(184, 115, 51, 0.2); border: 1px solid #b87333; color: #d99058; 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: #fef3e7; }\n  .po-section h2 { color: #8b5a2b; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #b87333; }\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 #b87333; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #8b5a2b; 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: #fef3e7; border-left: 4px solid #b87333; 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%, #8b5a2b 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 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":"Black","offer_id":44529318953049,"sku":"PO 15-S W T1 BB","price":389.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44589872283737,"sku":"PO 15-S W T1 B","price":369.99,"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%, #8b5a2b 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(184, 115, 51, 0.2); border: 1px solid #b87333; color: #d99058; 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: #fef3e7; }\n  .po-section h2 { color: #8b5a2b; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #b87333; }\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 #b87333; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #8b5a2b; 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: #fef3e7; border-left: 4px solid #b87333; 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%, #8b5a2b 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 (a system Qtc of about 1.14, aimed at peak output). This cabinet runs slightly larger to bring that down to about 1.10, for a slightly deeper F3 and a little less peak hump. 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 lands at a system Qtc of about 1.14, 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 ≈ 1.14)\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 ≈ 1.10)\u003c\/h4\u003e\n        \u003cp\u003e1.75 cu ft net. A little less peak hump (about 1.8 dB against 2.1), marginally better transient recovery and an F3 about 1 Hz deeper. 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: it moves Qtc from about 1.14 to 1.10 without leaving 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":"Black","offer_id":44529370529881,"sku":"PO 15-S W P3 BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44589872218201,"sku":"PO 15-S W P3 B","price":329.99,"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-15-audiophile-enclosure-image-dynamics-idmax15-v-4","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Image Dynamics IDMAX15 V.4","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\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\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.75 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.03 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 1.52 to 1.63\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e20.17\" x 18\" x 11.73\/18.28\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Image Dynamics IDMAX15 V.4 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eA 2.5 inch dual voice coil on a 575 ounce motor, 22 mm of one-way travel, a 600 watt RMS rating and a glass-fibre reinforced pulp cone. The alignment below follows from Image Dynamics' own published Thiele-Small parameters, which they give separately for each coil version.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003eImage Dynamics' published Universal sealed airspace for the IDMAX15 V.4 is 1.50 cubic feet. This cabinet is cut to 1.75, a deliberate step larger, which brings Qtc down from 1.60 to 1.52 on the D2 coil without giving up meaningful extension.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe IDMAX15 V.4 mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Image Dynamics IDMAX15 V.4\u003c\/h2\u003e\n\u003cp\u003eImage Dynamics' published Universal sealed airspace for the IDMAX15 V.4 is 1.50 cubic feet. This cabinet is cut to 1.75, a deliberate step larger, which brings Qtc down from 1.60 to 1.52 on the D2 coil without giving up meaningful extension.\u003c\/p\u003e\n\u003cp\u003eThat airspace produces a \u003cstrong\u003ehigh-Q sealed alignment\u003c\/strong\u003e, Qtc 1.52 to 1.63 depending on coil. It is not a Butterworth box and it is not trying to be. Qtc 0.707 is not reachable on this driver at any volume: a sealed system Q can never fall below the driver's own Qts, and Image Dynamics publishes 0.95 for the D2 coil and 1.02 for the D4. What the higher Q buys is a rise around 48 Hz and a half-power point of 33.1 to 33.5 Hz anechoic, which is lower than a flatter alignment of the same size would reach. In a vehicle, cabin gain works on everything below that.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eD2 Qtc 1.521 · D4 Qtc 1.633 · fc 48.0 Hz · F3 33.1 to 33.5 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 14.764 in. Driver mounting depth 10.866 in. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\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 ships as a D2 or a D4. A single D2 gives 4 ohms in series or \u003cstrong\u003e1 ohm in parallel\u003c\/strong\u003e. A single D4 gives 8 ohms in series or 2 ohms in parallel. Work the wiring out before you buy the amplifier, not after.\u003c\/p\u003e\n\u003cp\u003ePower handling is 600 watts RMS. Aim for roughly 420 to 600 watts at the final wired impedance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the Image Dynamics IDMAX15 V.4 driver is purchased separately. Call 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eImage Dynamics IDMAX15 V.4: Built to Image Dynamics' Own Airspace\u003c\/h2\u003e\n\u003cp\u003e1.75 cubic feet net at Qtc 1.52 to 1.63, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44529788846169,"sku":"PO 15-S W IDMAX BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44589871923289,"sku":"PO 15-S W IDMAX B","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_3d0e0e93-2da8-4703-9451-51450206153c.jpg?v=1788075662"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-kicker-compq-15","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Kicker CompQ 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%, #8b5a2b 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(184, 115, 51, 0.2); border: 1px solid #b87333; color: #d99058; 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: #fef3e7; }\n  .po-section h2 { color: #8b5a2b; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #b87333; }\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 #b87333; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #8b5a2b; 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: #fef3e7; border-left: 4px solid #b87333; 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%, #8b5a2b 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 | Kicker CompQ 15\u003c\/p\u003e\n    \u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the Kicker CompQ 15\u003c\/p\u003e\n    \u003cdiv class=\"po-badges\"\u003e\n      \u003cspan class=\"po-badge\"\u003e2.35 Cubic Feet\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e2.14 Cubic Feet\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n      \u003cspan class=\"po-badge\"\u003e26.25\" × 18\" × 10.1\/16.65\"\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 Kicker CompQ 15 in a Purpose-Built Sealed Wedge\u003c\/h2\u003e\n    \u003cp\u003eThe Kicker CompQ 15 is a proven mainstream performance driver with dual voice coils, 800 watts RMS rating, and a resilient stamped-steel frame. Ships in DVC 2 ohm (CWCS154) or DVC 4 ohm (CWCS152) configurations. Yellow injection-molded surround, ribbed spider, and back-fed lead technology for reliability under sustained output.\u003c\/p\u003e\n    \u003cdiv class=\"po-highlight\"\u003e\n      \u003cp\u003e2.35 Cubic Feet gross internal volume produces 2.14 Cubic Feet after driver displacement. The wedge geometry mounts the woofer on the vertical trunk-lid-side face, firing rearward into the trunk cavity for optimum cabin loading.\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.\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 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 is where the driver mounts. The cone 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 for the Kicker CompQ 15\u003c\/h2\u003e\n    \u003cp\u003eThis cabinet is engineered specifically for the Kicker CompQ 15 to deliver a musical, controlled sealed alignment at Qtc 0.75 based on published T\/S parameters. F3 lands at approximately 43 Hz with strong cabin gain typical of trunk installations extending that meaningfully lower in-vehicle.\u003c\/p\u003e\n    \u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eSystem Qtc: 0.75 · F3: 43 Hz · Fc: 48 Hz\u003c\/p\u003e\n    \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n    \u003cp\u003eThe vertical trunk-lid-side baffle is CNC-cut to Direct Fit. Mounting depth required is Direct Fit, with the wedge geometry providing ample interior 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.\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.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"po-card\"\u003e\n        \u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n        \u003cp\u003eTwo bonded 3\/4\" MDF sheets at the driver mounting face. The double baffle eliminates flex under high mechanical load and gives the driver a rigid, isolated mounting platform.\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 with 12 gauge OFC pre-wired to the driver position. 3D-printed in-house on Bambu Lab H2S 3D printers. 8\/32 threaded inserts installed for secure driver retention.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\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\u003eStandard finish is charcoal gray trunk liner. Optional plush black carpet finish adds $10 for a slightly more premium look.\u003c\/p\u003e\n    \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n    \u003cp\u003eChoose from Black, Blue, Red, White, or opt out entirely (-$40).\u003c\/p\u003e\n    \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n    \u003cp\u003eThis listing is box-only. Bring your own driver.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003cdiv class=\"po-section\"\u003e\n    \u003ch2\u003eWiring the Kicker CompQ 15 to Your Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe Kicker CompQ 15 ships in DVC 2 ohm (CWCS154) or DVC 4 ohm (CWCS152). Choose the impedance that matches your amplifier's stable load rating for the desired power output. The terminal cup provides the final connection to your amp.\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\u003eManufactured in Tullahoma, Tennessee on our ShopSabre CNC equipment. Every enclosure is CNC-cut, hand-assembled, glued and clamped, wrapped in carpet, and quality-checked by the same small team. 1-year limited warranty on the enclosure. Questions on fitment or amplifier matching, call 931-563-5151.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003cdiv class=\"po-cta\"\u003e\n    \u003ch2\u003eKicker CompQ 15: Precision-Tuned in a Trunk-Load Wedge\u003c\/h2\u003e\n    \u003cp\u003e2.14 Cubic Feet net, engineered for the Kicker CompQ 15 in a wedge geometry that fires the driver rearward into the trunk cavity. Precise driver-specific engineering.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44532528152665,"sku":"PO 15-S W CompQ BB","price":399.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44589872087129,"sku":"PO 15-S W CompQ B","price":379.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO15-SWCompQFront.jpg?v=1787530262"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-kicker-comp-vx-15","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Kicker Comp VX 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%, #8b5a2b 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(184, 115, 51, 0.2); border: 1px solid #b87333; color: #d99058; 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: #fef3e7; }\n  .po-section h2 { color: #8b5a2b; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #b87333; }\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 #b87333; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #8b5a2b; 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: #fef3e7; border-left: 4px solid #b87333; 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%, #8b5a2b 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) { .po-hero { padding: 40px 20px; } .po-hero .po-title { font-size: 1.8em; } .po-section { padding: 30px 20px; } .po-section h2 { font-size: 1.6em; } .po-grid { grid-template-columns: 1fr; } .po-cta { padding: 40px 20px; } .po-cta h2 { font-size: 1.6em; } }\n\u003c\/style\u003e\n\u003cdiv class=\"po-wrap\"\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Kicker Comp VX 15\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e2.0 ft³ Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.80 ft³ Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e23\" × 18\" × 10.1\/16.65\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Kicker Comp VX 15 in a Purpose-Built Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe Comp VX 15 is Kicker's high-value 15-inch performance driver. DVC 2Ω or DVC 4Ω configurations, ribbed polyurethane surround, stamped steel basket. Rated 750W RMS, plays clean well below that in a properly-sized sealed cabinet.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e2.0 cu ft gross internal volume produces 1.80 cu ft net after driver displacement. Butterworth alignment at Qtc 0.65 for musical, controlled output.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\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 Comp VX 15 mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity. Angled face on the opposite side tucks against the rear seat back.\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 seats lean ~20 degrees from vertical. Angled face matches that lean.\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\u003eVertical face is where the Comp VX 15 mounts. Cone fires rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eUsing the trunk itself as acoustic extension. Low frequencies transmit through rear deck and seat back for smooth, less-localized presentation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003ePreserves Trunk Cargo Space\u003c\/h4\u003e\n\u003cp\u003eWedge tucks against the seat back. Cargo space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Kicker Comp VX 15\u003c\/h2\u003e\n\u003cp\u003eBuilt to 1.80 cubic feet net. Puts the Comp VX 15 at Qtc 0.65 based on bench T\/S, an extended Butterworth alignment optimized for musical performance in trunk installations.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eTarget System Qtc: 0.65 · F3: ~52 Hz · Fc: ~46 Hz\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC-cut to 14.0\" (Kicker spec). Mounting depth required 7.5\". 8\/32 threaded inserts pressed into baffle backside.\u003c\/p\u003e\n\u003c\/div\u003e\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, denser and more stable than commodity MDF.\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 for maximum glue surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4\" MDF sheets at the driver mounting face.\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, 12g OFC pre-wired.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n\u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n\u003cp\u003eCharcoal gray trunk liner standard; plush black +$10.\u003c\/p\u003e\n\u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n\u003cp\u003eBlack, Blue, Red, White, or none (-$40).\u003c\/p\u003e\n\u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n\u003cp\u003eBox-only: bring your own Comp VX 15.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Kicker Comp VX 15 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eShips DVC 2Ω or DVC 4Ω. Target 600-750W RMS at the woofer's impedance. Comp VX 15 rated 750W RMS continuous.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eManufactured in Tullahoma, Tennessee on our ShopSabre CNC equipment. 1-year limited warranty. Call 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eKicker Comp VX 15: Precision-Tuned in a Trunk-Load Wedge\u003c\/h2\u003e\n\u003cp\u003e1.80 cubic feet net at Butterworth Qtc 0.65 in a wedge that fires the driver rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44532559741017,"sku":"PO 15-S W CompVX BB","price":379.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44589871956057,"sku":"PO 15-S W CompVX B","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO15-SWCompVXFront.jpg?v=1787530511"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-prodigy-nb5-15","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Prodigy NB5-15","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%, #8b5a2b 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(184, 115, 51, 0.2); border: 1px solid #b87333; color: #d99058; 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: #fef3e7; }\n  .po-section h2 { color: #8b5a2b; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #b87333; }\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 #b87333; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #8b5a2b; 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: #fef3e7; border-left: 4px solid #b87333; 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%, #8b5a2b 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) { .po-hero { padding: 40px 20px; } .po-hero .po-title { font-size: 1.8em; } .po-section { padding: 30px 20px; } .po-section h2 { font-size: 1.6em; } .po-grid { grid-template-columns: 1fr; } .po-cta { padding: 40px 20px; } .po-cta h2 { font-size: 1.6em; } }\n\u003c\/style\u003e\n\u003cdiv class=\"po-wrap\"\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Prodigy NB5-15\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the Prodigy NB5-15\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.95 ft³ Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.76 ft³ Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e21.5\" × 18\" × 11\/16.55\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Prodigy NB5-15 in a Purpose-Built Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe Prodigy NB5-15 is Prodigy Audio's flagship 15-inch SQL driver. 1500W RMS, 27mm one-way Xmax at 70% BL, 40mm forward and 50mm downward X-mech clearance, 2.75\" flat-aluminum voice coil, 280 oz ferrite motor with upper\/lower aluminum Faraday rings. NB5-15D2 or NB5-15D4 impedance options.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.95 cu ft gross internal volume produces 1.76 cu ft net after driver displacement. Split-family compromise alignment: D2 coil lands Qtc 0.66, D4 coil lands Qtc 0.75 in the same cabinet.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\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 NB5-15 mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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 seats lean ~20 degrees from vertical. Angled face matches that lean.\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\u003eVertical face is where the NB5-15 mounts. Cone fires rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eUsing the trunk itself as acoustic extension for smoother, less-localized presentation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003ePreserves Trunk Cargo Space\u003c\/h4\u003e\n\u003cp\u003eWedge tucks against the seat back. Cargo space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Prodigy NB5-15\u003c\/h2\u003e\n\u003cp\u003eBuilt to 1.76 cubic feet net. The D2 and D4 coil variants have divergent T\/S parameters, so this cabinet takes a split-family compromise approach: D2 coil lands Qtc 0.66 (near-Butterworth musical), D4 coil lands Qtc 0.75 (slightly punchy). Both are usable, well-controlled alignments.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eD2 Qtc: 0.66 · D4 Qtc: 0.75 · Fc: ~46 Hz · F3: 47-53 Hz depending on coil\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC-cut direct-fit for the NB5-15's cutout spec. Mounting depth accommodated with wedge interior clearance. 8\/32 threaded inserts pressed into baffle backside.\u003c\/p\u003e\n\u003c\/div\u003e\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.\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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4\" MDF sheets at the driver mounting face.\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, 12g OFC pre-wired.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n\u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n\u003cp\u003eCharcoal gray trunk liner standard; plush black +$10.\u003c\/p\u003e\n\u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n\u003cp\u003eBlack, Blue, Red, White, or none (-$40).\u003c\/p\u003e\n\u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n\u003cp\u003eBox-only: bring your own NB5-15.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Prodigy NB5-15 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eShips NB5-15D2 or NB5-15D4. Target 1000-1500W RMS at the woofer's impedance. NB5-15 rated 1500W RMS continuous.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eManufactured in Tullahoma, Tennessee on our ShopSabre CNC equipment. 1-year limited warranty. Call 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eProdigy NB5-15: Precision-Tuned in a Trunk-Load Wedge\u003c\/h2\u003e\n\u003cp\u003e1.76 cubic feet net, engineered for both D2 and D4 coil variants in a wedge that fires the driver rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44532937261145,"sku":"PO 15-S W NB5 BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44589872185433,"sku":"PO 15-S W NB5 B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO15-SWNB5Front.jpg?v=1787531034"},{"product_id":"performance-optimized-down-fire-sealed-15-enclosure-resonix-gus-15","title":"Performance Optimized Down Fire Sealed 15\" Enclosure | ResoNix GUS-15","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica 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class=\"df-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Down Fire 15\" Sealed\u003c\/h2\u003e\n\u003cp\u003eCut and tuned for the ResoNix GUS-15\u003c\/p\u003e\n\u003cdiv class=\"df-badges\"\u003e\n\u003cspan class=\"df-badge\"\u003eV-Groove and Dado\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eLangboard Elite MDF\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003e1.41 cu ft Net\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eStandoffs Included\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stats\"\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e1.41\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e0.690\u003c\/span\u003e\u003cspan class=\"l\"\u003esystem Qtc, D2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e32.2-35.7 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e8.25 in\u003c\/span\u003e\u003cspan class=\"l\"\u003ecabinet height, excludes standoffs\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003ePerformance, Performance Optimized, and Micro\u003c\/h3\u003e\n\u003cp\u003eProline X builds three tiers of Down Fire enclosure. The difference is not finish or materials, it is whether the cabinet was designed for a category or for a driver, and how much of the fitting work is already done for you.\u003c\/p\u003e\n\u003cdiv class=\"df-tier\"\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003e \u003c\/th\u003e\n\u003cth\u003ePerformance\u003c\/th\u003e\n\u003cth class=\"on\"\u003ePerformance Optimized\u003c\/th\u003e\n\u003cth\u003eMicro Series\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"a\"\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eUniversal. Accepts any subwoofer that clears the published cutout and mounting depth.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003eWoofer specific. Cut for one named subwoofer, with cutout, mounting depth, magnet clearance and displacement drawn in CAD from that driver.\u003c\/td\u003e\n\u003ctd\u003eWoofer specific. Cut for one named subwoofer.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"a\"\u003eFootprint\u003c\/td\u003e\n\u003ctd\u003eSized to the driver diameter. 24.5 by 13.5 inches on the 10 inch.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003eShared 30 by 15 inch platform on most builds, with cabinet height as the variable. A few drivers need a wider or deeper platform.\u003c\/td\u003e\n\u003ctd\u003eCompact per driver footprint. 21.5 by 14.5 inches on the 10 inch.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"a\"\u003eFront baffle\u003c\/td\u003e\n\u003ctd\u003eSingle, 3\/4 inch.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003eDouble, 1.5 inch, outer layer machined as a flush recess.\u003c\/td\u003e\n\u003ctd\u003eDouble, 1.5 inch.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"a\"\u003eDriver mounting\u003c\/td\u003e\n\u003ctd\u003eSolid flange. You drill your own mounting holes.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003e8\/32 threaded inserts, stainless machine screws included.\u003c\/td\u003e\n\u003ctd\u003e8\/32 threaded inserts, stainless machine screws included.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"a\"\u003eJoinery\u003c\/td\u003e\n\u003ctd\u003eV-groove and dado, CNC cut.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003eV-groove and dado, CNC cut, perimeter cross brace.\u003c\/td\u003e\n\u003ctd\u003eStack fab, dowel reinforced.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"a\"\u003ePublished alignment\u003c\/td\u003e\n\u003ctd\u003eModeled Qtc profiles across a range of drivers. No single response curve.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003eA real predicted Qtc and F3 for that exact driver, calculated from its own Thiele-Small parameters.\u003c\/td\u003e\n\u003ctd\u003eTarget alignment described in the listing.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"a\"\u003eCarpet\u003c\/td\u003e\n\u003ctd\u003eGray standard, black optional.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003ePlush black.\u003c\/td\u003e\n\u003ctd\u003ePlush black.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"a\"\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year limited.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003e1 year limited.\u003c\/td\u003e\n\u003ctd\u003e2 years.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-note\"\u003e\u003cp\u003e\u003cstrong\u003eFeet ship with every tier, uninstalled on purpose.\u003c\/strong\u003e Mount them where your floor wants them for a down fire install, or leave them off and run the cabinet front firing or up firing. The orientation is yours to choose.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv class=\"df-note\"\u003e\u003cp\u003e\u003cstrong\u003eThis page is a Performance Optimized enclosure.\u003c\/strong\u003e The airspace, the cutout and the cabinet height all come from the ResoNix GUS-15's own published numbers. A Performance box fits your subwoofer. A Performance Optimized box was built for it.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eBuilt Around the ResoNix GUS-15\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffle is bored to the GUS-15's \u003cstrong\u003e354.91mm cutout\u003c\/strong\u003e, 13.972 inches, the internal height is set by its \u003cstrong\u003e5.807 inch mounting depth\u003c\/strong\u003e, and the volume lands within a hundredth of the 1.4 cubic feet ResoNix publishes for a 0.707 Qtc alignment. It reaches \u003cstrong\u003e32.2 Hz\u003c\/strong\u003e on the Dual 2-Ohm, the deepest single driver figure in the Down Fire line, from a 15 that mounts in less than six inches.\u003c\/p\u003e\n\u003cp\u003eGUS stands for Geometrically Uncompromised Subwoofer, and the engineering behind the name is not marketing language. A patent pending FEA optimized overhung motor with high motor force and very low inductance. Copper and aluminum shorting rings plus a \u003cstrong\u003efull length copper shorting sleeve\u003c\/strong\u003e positioned outside the gap, which keeps inductance stable across stroke while pulling heat out of the coil. A \u003cstrong\u003e4 inch copper voice coil on a titanium former\u003c\/strong\u003e that eliminates eddy current drag and directs heat away from the internal neodymium magnet. A Nomex honeycomb core cone with carbon fiber facing across 804.25 cm² of piston area.\u003c\/p\u003e\n\u003cp\u003eResoNix publishes the parameter set the way it should be published. Full Thiele Small figures for each coil variant, down to Qes, Qms, BL, Mms and Re. \u003cstrong\u003e25mm of Klippel verified one way excursion at 70% BL\u003c\/strong\u003e, a measured number under a stated criterion, with Xmech listed separately at 28mm. That is a manufacturer telling you where the driver stays linear and where it physically stops, rather than blending the two into one number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eWhy This One Is 17 Inches Deep\u003c\/h3\u003e\n\u003cp\u003eThis is the only cabinet in the Proline X Down Fire line that does not use the 15 inch platform, and the reason is geometric rather than stylistic. The GUS-15 mounting diameter is 354.91mm, just under 14 inches. On a 15 inch deep cabinet the internal span is 13.5 inches after panel thickness, so the cutout would be wider than the cavity holding it. That is not a tight fit, it is impossible.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e17 inches external the internal footprint is 27.5 by 15.5 inches\u003c\/strong\u003e, which leaves roughly three quarters of an inch of baffle material on each side of the cutout. That is the minimum needed for a rigid baffle and a proper seal, and it is what makes a 15 physically possible in this format. Every other Down Fire enclosure stays on the 15 inch platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eNet Volume, Not Gross\u003c\/h3\u003e\n\u003cp\u003eWe build this cabinet at \u003cstrong\u003e1.41 cubic feet net\u003c\/strong\u003e, out of 1.48 gross, against ResoNix's published 1.4 for a 0.707 Qtc alignment. The volume quoted is true net internal airspace after panel thickness, bracing and the driver's own 0.072 cubic feet of displacement are accounted for. For reference, ResoNix brackets this driver between 0.8 cubic feet, which gives a Qtc of 0.875, and 2.3 cubic feet, which gives 0.60 but carries a 1000 watt limit. Sitting at 1.4 keeps the full 1500 watt rating and a well damped alignment at the same time.\u003c\/p\u003e\n\u003cdiv class=\"df-highlight\"\u003e\u003cp\u003e\u003cstrong\u003eTrue net, not marketing net.\u003c\/strong\u003e Internal volume is calculated from the machined cavity dimensions and the driver's published displacement, not estimated from external dimensions minus wall thickness.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003eThe Dual 2-Ohm reaches deeper. It measures 14.11 Hz free air with a Qts of 0.31 and 157.94 litres of Vas, and in this cabinet lands at Qtc 0.690 with F3 at 32.2 Hz. The Dual 4-Ohm measures 17.11 Hz with a Qts of 0.34 and 117.47 litres, landing at Qtc 0.675 with F3 at 35.7 Hz, marginally better damped and about three and a half hertz shallower. Impedance is set at the driver: the D2 wired parallel presents 1 ohm at 1500 watts, which is a demanding load that not every 1 ohm rated amplifier handles reliably under continuous use, while the D4 wired parallel gives a far more forgiving 2 ohms. Choose on what your amplifier can actually deliver cleanly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eDown Fire Construction\u003c\/h3\u003e\n\u003cp\u003eCut with V-groove and dado joinery on our ShopSabre routers from Langboard Elite 3\/4 inch MDF, a dense 48.5 lb\/ft³ board with a 200 psi internal bond and 410,000 psi MOE. Every panel joint is a machined interlocking groove that mechanically locks before adhesive is applied, which keeps the cabinet airtight under sustained pressure cycling. With a 13.972 inch cutout and a 1500 watt driver bolted to it, that rigidity is not optional. Corners are square on Down Fire cabinets.\u003c\/p\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e30 inches wide by 17 inches deep by 8.25 inches tall, measured in the down fire position and excluding standoffs\u003c\/strong\u003e. Plan the space around the installed height rather than the cabinet height: with the standoffs holding ResoNix's required 65mm under the baffle, installed height lands near 11 inches. This is a cargo floor or rear wall build.\u003c\/p\u003e\n\u003cdiv class=\"df-grid\"\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eDouble Baffle, Flush Recess\u003c\/h4\u003e\n\u003cp\u003eThe front baffle is \u003cstrong\u003e1.5 inches\u003c\/strong\u003e, two bonded 3\/4 inch sheets, with the outer layer machined as a flush recess so the driver bolts to the inner layer. That recovers 3\/4 inch of internal clearance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eSide-Mounted Terminal Cup\u003c\/h4\u003e\n\u003cp\u003eProline X ABS and carbon fiber composite cup with stainless hardware and copper ring terminals, pre-wired in \u003cstrong\u003e12 gauge OFC\u003c\/strong\u003e. Side mounted so it stays accessible with the baffle facing the floor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eStandoffs Included\u003c\/h4\u003e\n\u003cp\u003eResoNix specifies \u003cstrong\u003e65mm minimum\u003c\/strong\u003e from the baffle surface to whatever sits in front of the cone, 33mm between the surround and the obstruction. That is the largest clearance requirement in the GUS line, appropriate for 25mm of one way excursion, so custom-fit standoffs ship with every enclosure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e17 Inch Platform\u003c\/h4\u003e\n\u003cp\u003eThe only Down Fire cabinet built on a \u003cstrong\u003e17 inch depth\u003c\/strong\u003e, giving a 27.5 by 15.5 inch internal footprint so the 13.972 inch cutout keeps proper baffle material around it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ENCLOSURE PERFORMANCE SLOT --\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eDown Firing, Endorsed by the Manufacturer\u003c\/h3\u003e\n\u003cp\u003eResoNix addresses the orientation question directly in their own documentation: there is very little real world difference in sound between down firing and up firing, and you should choose whichever makes the installation easier, more reliable and easier to service. That endorsement comes from the driver's manufacturer rather than from us. The one requirement is maintaining the specified 65mm of clearance in front of the cone, which the included standoffs handle.\u003c\/p\u003e\n\u003cp\u003eThe GUS series also uses a \u003cstrong\u003evented rear cone assembly\u003c\/strong\u003e attached to the voice coil former, so the pole vent can be completely obstructed with no negative effect. That is what allows this cabinet to be built without the rear motor clearance allowance most drivers require, which is how a 15 inch down fire enclosure stays at 8.25 inches tall despite a 5.807 inch mounting depth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003ePower and Warranty\u003c\/h3\u003e\n\u003cp\u003eResoNix rates the GUS-15 at \u003cstrong\u003e1500 watts RMS\u003c\/strong\u003e and states plainly that they do not underrate their drivers the way many manufacturers do. Burnt voice coils and damage from bottoming out are not covered under their warranty. At 1500 watts the electrical system matters as much as the amplifier, so plan on a high output alternator, adequate battery capacity, and correctly sized power and ground cable. ResoNix also notes these drivers stay linear and composed right up to their mechanical limits, so it will not always be obvious when you are pushing too hard. Mechanical noise, clacking, or a sudden loss of control are the warning signs.\u003c\/p\u003e\n\u003cp\u003eThe enclosure carries a 1 year limited warranty and ships with the standoffs. Bring your own GUS-15 in either coil configuration; the driver is purchased directly from ResoNix Sound Solutions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-cta\"\u003e\n\u003ch3\u003eCut for the Driver, Not the Catalog\u003c\/h3\u003e\n\u003cp\u003eA 17 inch platform built for one driver, 1.41 cubic feet net, custom-fit standoffs and a 1 year limited warranty, built one at a time in Tullahoma, Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44540879274073,"sku":"PO 15-S DF GUS","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO15-SDFGUSInternal.jpg?v=1787364991"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-nvx-vcw15v3","title":"Performance Optimized Wedge Sealed 15\" Enclosure | NVX VCW15v3","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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-wrap\"\u003e\n\u003cdiv class=\"po-hero\"\u003e\n  \u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | NVX VCW15v3\u003c\/p\u003e\n  \u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design for the VCW152v3 and VCW154v3\u003c\/p\u003e\n  \u003cdiv class=\"po-badges\"\u003e\n    \u003cspan class=\"po-badge\"\u003e2.15 ft³ Gross\u003c\/span\u003e\n    \u003cspan class=\"po-badge\"\u003e2.0 ft³ Net\u003c\/span\u003e\n    \u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\n    \u003cspan class=\"po-badge\"\u003e22.75\" × 18\" × 8.75\/15.3\"\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\u003cdiv class=\"po-section\"\u003e\n  \u003ch2\u003eThe NVX VCW15v3 in a Purpose-Built Sealed Wedge\u003c\/h2\u003e\n  \u003cp\u003eThe VC-Series v3 15 is a 1500 watt RMS, 3000 watt peak driver on a 202 ounce triple-stacked Y35 ferrite motor, with a 3 inch four-layer high-temperature aluminum voice coil and a carbon-fiber-enhanced non-pressed paper cone. Xmax is 23 mm one-way. Cone area is 124.65 square inches, which is where a 15 earns its keep: it moves the same air as a 12 at roughly two thirds the excursion, so it stays inside its linear range on program material that would have a smaller driver working hard.\u003c\/p\u003e\n  \u003cp\u003eIt ships in two coil configurations. The VCW152v3 is dual 2 ohm, the VCW154v3 is dual 4 ohm. Both share the same frame, cone, motor and mounting geometry, so this enclosure fits either one.\u003c\/p\u003e\n  \u003cdiv class=\"po-highlight\"\u003e\n    \u003cp\u003e2.15 cu ft gross internal volume produces 2.0 cu ft net after driver displacement. That is the sealed volume NVX specifies for this driver. The wedge geometry mounts the woofer on the vertical trunk-lid-side face, firing rearward into the trunk cavity for optimum cabin loading.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\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, the side that faces the front of the vehicle, and tucks against the rear seat back.\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. This cabinet runs 8.75\" deep at the top and 15.3\" at the bottom over 18\" of height, a 20.0 degree rake that matches that lean and tucks against the seat back with no wasted gap.\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 is where the VCW15v3 mounts. The cone fires rearward toward the trunk lid, using the trunk cavity as an acoustic loading chamber. 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 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 stays usable for daily driving.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n  \u003ch2\u003eEngineered for the NVX VCW15v3\u003c\/h2\u003e\n  \u003cp\u003eNVX specifies 2 cubic feet sealed for this driver, and this cabinet delivers 2.0 net rather than 2.0 gross. A box built to 2.0 gross gives the driver 1.85 after displacement and lands system Q at 0.78. Built to 2.0 net it lands at 0.76. Both are usable, but 0.76 is the flatter of the two and it is the one NVX's stated volume actually describes. That is the band between maximally flat and lightly punchy: a small amount of midbass weight, no overhang. Opening the box out to 2.6 cubic feet drops Q to 0.70, maximally flat, at the cost of midbass authority a 15 has no reason to give up. Coming down to 1.44 pushes Q to 0.85 and starts putting a bump at resonance.\u003c\/p\u003e\n  \u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n  \u003cp\u003eTarget System Qtc: 0.76, the same for both coil variants. The two coils differ slightly in free-air resonance, so the corner differs with them. VCW152v3 at Fs 29.30 Hz: Fc 49.5 Hz, F3 46.3 Hz anechoic. VCW154v3 at Fs 31.30 Hz: Fc 52.8 Hz, F3 49.4 Hz anechoic. In a sealed trunk-load install, cabin gain typically adds usable output an octave below the anechoic F3.\u003c\/p\u003e\n  \u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n  \u003cp\u003eThe vertical trunk-lid-side baffle is CNC-cut to 14.25\". NVX lists 14.125\" in the VC-Series v3 manual and 14.21\" on the product listing, so we cut to a figure that clears both and still leaves a quarter inch of flange bearing against the driver's 14.78\" mounting diameter. Mounting depth required is 8.19\", and at the cutout centerline the cabinet gives 10.53\" of internal depth behind the 1.5\" baffle, so there is roughly 2.3\" behind the motor once the wedge taper is accounted for. 8\/32 threaded inserts are pressed into the baffle backside for secure driver retention.\u003c\/p\u003e\n\u003c\/div\u003e\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, longer service life under daily use.\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 angled seat-side panel into the side walls.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n      \u003cp\u003eTwo bonded 3\/4\" MDF sheets at the driver mounting face. A 1500 watt RMS motor with 23 mm of one-way travel puts real reaction force into the baffle, and a 14.25\" hole in a single 3\/4\" sheet is not enough material to hold it still. Eliminates flex and gives the motor a rigid, isolated mounting platform.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"po-card\"\u003e\n      \u003ch4\u003eSide-Mounted Pre-Wired Terminal Cup\u003c\/h4\u003e\n      \u003cp\u003eProline X ABS\/carbon-fiber composite terminal cup, side mounted per PO Series standard, with 12 gauge OFC pre-wired to the driver position. 3D-printed in-house on Bambu Lab H2S printers. 8\/32 threaded inserts installed for secure driver retention.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n  \u003ch2\u003eCustomize Your Build\u003c\/h2\u003e\n  \u003ch3\u003eCarpet Finish\u003c\/h3\u003e\n  \u003cp\u003eStandard finish is charcoal gray trunk liner. Optional plush black carpet finish adds $10 for a slightly more premium look. Both finishes are OEM-quality automotive carpet.\u003c\/p\u003e\n  \u003ch3\u003eAcrylic Insert Color\u003c\/h3\u003e\n  \u003cp\u003eChoose from Black, Blue, Red, White, or opt out entirely (-$40). The acrylic insert is a decorative panel on the front of the terminal cup.\u003c\/p\u003e\n  \u003ch3\u003eBox-Only or Loaded\u003c\/h3\u003e\n  \u003cp\u003eThis listing is box-only, bring your own VCW152v3 or VCW154v3. \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e for loaded-system pricing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n  \u003ch2\u003eWiring the NVX VCW15v3 to Your Amplifier\u003c\/h2\u003e\n  \u003cp\u003eThe VCW152v3 is dual 2 ohm. Series wiring gives 4 ohms, parallel gives 1 ohm. Run it in series at 4 ohms unless your amplifier is genuinely rated 1 ohm stable, because a lot of amps that advertise 1 ohm operation are rated for it in mono at a duty cycle no one actually runs. The VCW154v3 is dual 4 ohm and is the easier load: series gives 8 ohms, parallel gives 2 ohms, and 2 ohms is where most monoblocks make their rated power without complaint.\u003c\/p\u003e\n  \u003cp\u003eTarget 1050 to 1500 watts RMS at your final wired impedance against the driver's 1500 watt continuous rating. Set gains by ear or with an oscilloscope at the level you actually listen, not at the level the amp will make. With 23 mm of one-way travel this driver will take mechanical abuse long after the coil stops appreciating it, so the failure mode here is thermal, not mechanical.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n  \u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n  \u003cp\u003eManufactured in Tullahoma, Tennessee on our ShopSabre CNC equipment. Every enclosure is CNC-cut, hand-assembled, glued and clamped, wrapped in carpet, and quality-checked by the same small team. We install this gear ourselves, so the fit and the alignment are the ones we would run in our own vehicles. 1-year limited warranty on the enclosure. Questions on fitment or amplifier matching, call 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n  \u003ch2\u003eNVX VCW15v3: Flat, Controlled, and Built for the Trunk\u003c\/h2\u003e\n  \u003cp\u003e2.0 cubic feet net, engineered for the VCW15v3 in a wedge geometry that fires the driver rearward into the trunk cavity. 124.65 square inches of cone in the volume NVX designed it for, on a cabinet that tucks where your cargo space already ended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"Proline X","offers":[{"title":"Black","offer_id":44568568299609,"sku":"PO 15-S W VCW BB","price":329.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44589872119897,"sku":"PO 15-S W VCW B","price":309.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO15-SWVCWFront_cf010b80-1b24-4204-bcd9-1eba032abf5b.jpg?v=1787555758"},{"product_id":"proline-x-performance-optimized-wedge-enclosure-fits-kicker-solo-x-15-subwoofer","title":"Proline X Performance Optimized Wedge Enclosure | Fits Kicker Solo X 15\" Subwoofer","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%, #8b5a2b 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(184, 115, 51, 0.2); border: 1px solid #b87333; color: #d99058; 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: #fef3e7; }\n  .po-section h2 { color: #8b5a2b; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #b87333; }\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 #b87333; padding: 25px; border-radius: 4px; }\n  .po-card h4 { color: #8b5a2b; 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: #fef3e7; border-left: 4px solid #b87333; 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%, #8b5a2b 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) { .po-hero { padding: 40px 20px; } .po-hero .po-title { font-size: 1.8em; } .po-section { padding: 30px 20px; } .po-section h2 { font-size: 1.6em; } .po-grid { grid-template-columns: 1fr; } .po-cta { padding: 40px 20px; } .po-cta h2 { font-size: 1.6em; } }\n\u003c\/style\u003e\n\u003cdiv class=\"po-wrap\"\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Kicker Solo X 15\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Behind-Seat Wedge Design for the Kicker Solo X L7X 15\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e3.00 ft³ Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.76 ft³ Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.707 Butterworth\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e26\" × 18.25\" × 12.6\/19.25\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eV-Groove \/ Dado\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Kicker Solo X 15 in a Purpose-Built Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe Solo X L7X 15 is Kicker's flagship square-cone driver, built around a massive triple-stack motor with SPL-lane pedigree. That same motor authority makes it a devastating sealed-box driver when the airspace is solved for it, and this wedge was: the internal volume was computed directly from Kicker's factory Thiele\/Small parameters, not adapted from a generic 15\" box.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e3.00 cu ft gross internal volume produces 2.76 cu ft net after driver displacement. That lands the dual 1-ohm Solo X 15 at a textbook Qtc of 0.707, the true Butterworth alignment, with the dual 2-ohm at 0.79 in the same cabinet.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBehind-Seat Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThis is a front-firing wedge built for behind-seat and rear-wall installs. The rear panel is vertical and sits flat against the cab wall; the woofer mounts on the baffle, raked back 20 degrees to follow the seat lean.\u003c\/p\u003e\n\u003cdiv class=\"po-grid\"\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eVertical Rear Panel\u003c\/h4\u003e\n\u003cp\u003eSits flush against the cab back wall or trunk bulkhead, so the full footprint of the box goes to airspace instead of wasted gaps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e20° Raked Baffle\u003c\/h4\u003e\n\u003cp\u003eMatches the lean of most factory seat backs and fires the Solo X forward into the cabin instead of into the seat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDado-Locked Internal Brace\u003c\/h4\u003e\n\u003cp\u003eA 3\/4\" brace directly behind the woofer halves the largest panel span. Its depth matches the baffle stack, so driver clearance is engineered in, not left to luck.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eCarpet-Wrap Ledge\u003c\/h4\u003e\n\u003cp\u003eA recessed perimeter ledge terminates the carpet cleanly at the baffle edge for a finished, factory look.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Kicker Solo X 15\u003c\/h2\u003e\n\u003cp\u003eBuilt to 2.76 cubic feet net, the airspace that puts the dual 1-ohm 49L7X151 exactly on the Butterworth alignment. Qtc 0.707 delivers the flattest response and tightest transient control a sealed enclosure can produce: no peaking, no overhang, bass that starts and stops with the recording. The dual 2-ohm 49L7X152 runs 0.79 in the same box, still squarely inside the accurate, musical zone.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eDual 1-Ohm: Qtc 0.707 · Fc 45 Hz · F3 45 Hz — Dual 2-Ohm: Qtc 0.79 · Fc 46 Hz · F3 41.7 Hz\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eThe baffle is CNC-cut to 13.75\" (Kicker spec). Mounting depth required is 11.5625\", cleared with margin at every point of the stroke, including breathing room for the vented motor. 8\/32 threaded inserts pressed into the baffle backside.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eSealed Alignment Response\u003c\/h2\u003e\n\u003cp\u003ePredicted anechoic response of the Solo X 15 in this enclosure's 2.76 cu ft net airspace, computed from Kicker factory T\/S parameters. This enclosure ships without a driver, so both coil variants are plotted; they do not load the same box identically.\u003c\/p\u003e\n\u003csvg viewbox=\"0 0 700 330\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" role=\"img\" aria-label=\"Sealed frequency response of the Kicker Solo X 15 in this enclosure, both coil variants, with the minus 3 dB reference line\" style=\"width:100%;height:auto;background:#ffffff;border:1px solid #e2e8f0;border-radius:4px;\"\u003e\n\u003crect x=\"70\" y=\"20\" width=\"610\" height=\"240\" fill=\"#ffffff\"\u003e\u003c\/rect\u003e\n\u003cg stroke=\"#e2e8f0\" stroke-width=\"1\"\u003e\n\u003cline x1=\"70\" y1=\"20\" x2=\"70\" y2=\"260\"\u003e\u003c\/line\u003e\u003cline x1=\"177.4\" y1=\"20\" x2=\"177.4\" y2=\"260\"\u003e\u003c\/line\u003e\u003cline x1=\"312.7\" y1=\"20\" x2=\"312.7\" y2=\"260\"\u003e\u003c\/line\u003e\u003cline x1=\"401.9\" y1=\"20\" x2=\"401.9\" y2=\"260\"\u003e\u003c\/line\u003e\u003cline x1=\"496.4\" y1=\"20\" x2=\"496.4\" y2=\"260\"\u003e\u003c\/line\u003e\u003cline x1=\"603.8\" y1=\"20\" x2=\"603.8\" y2=\"260\"\u003e\u003c\/line\u003e\u003cline x1=\"680\" y1=\"20\" x2=\"680\" y2=\"260\"\u003e\u003c\/line\u003e\n\u003cline x1=\"70\" y1=\"20\" x2=\"680\" y2=\"20\"\u003e\u003c\/line\u003e\u003cline x1=\"70\" y1=\"68\" x2=\"680\" y2=\"68\"\u003e\u003c\/line\u003e\u003cline x1=\"70\" y1=\"116\" x2=\"680\" y2=\"116\"\u003e\u003c\/line\u003e\u003cline x1=\"70\" y1=\"164\" x2=\"680\" y2=\"164\"\u003e\u003c\/line\u003e\u003cline x1=\"70\" y1=\"212\" x2=\"680\" y2=\"212\"\u003e\u003c\/line\u003e\u003cline x1=\"70\" y1=\"260\" x2=\"680\" y2=\"260\"\u003e\u003c\/line\u003e\n\u003c\/g\u003e\n\u003cline x1=\"70\" y1=\"92\" x2=\"680\" y2=\"92\" stroke=\"#94a3b8\" stroke-width=\"1.5\" stroke-dasharray=\"6,5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"675\" y=\"87\" text-anchor=\"end\" font-family=\"Helvetica Neue, Arial, sans-serif\" font-size=\"11\" fill=\"#64748b\"\u003e−3 dB\u003c\/text\u003e\n\u003cpath 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L625.2,67.1 L632.0,67.1 L638.9,67.2 L645.7,67.2 L652.6,67.2 L659.4,67.3 L666.3,67.3 L673.1,67.3 L680.0,67.4\" fill=\"none\" stroke=\"#0f172a\" stroke-width=\"2.5\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M70.0,182.0 L76.9,178.6 L83.7,175.1 L90.6,171.7 L97.4,168.3 L104.3,164.9 L111.1,161.6 L118.0,158.2 L124.8,154.9 L131.7,151.6 L138.5,148.4 L145.4,145.1 L152.2,142.0 L159.1,138.8 L166.0,135.7 L172.8,132.6 L179.7,129.6 L186.5,126.7 L193.4,123.8 L200.2,120.9 L207.1,118.2 L213.9,115.4 L220.8,112.8 L227.6,110.2 L234.5,107.7 L241.3,105.3 L248.2,103.0 L255.1,100.8 L261.9,98.6 L268.8,96.6 L275.6,94.6 L282.5,92.7 L289.3,90.9 L296.2,89.2 L303.0,87.6 L309.9,86.1 L316.7,84.7 L323.6,83.4 L330.4,82.1 L337.3,81.0 L344.2,79.9 L351.0,78.9 L357.9,78.0 L364.7,77.1 L371.6,76.3 L378.4,75.6 L385.3,74.9 L392.1,74.3 L399.0,73.7 L405.8,73.2 L412.7,72.7 L419.6,72.3 L426.4,71.9 L433.3,71.5 L440.1,71.2 L447.0,70.9 L453.8,70.6 L460.7,70.4 L467.5,70.1 L474.4,69.9 L481.2,69.8 L488.1,69.6 L494.9,69.4 L501.8,69.3 L508.7,69.2 L515.5,69.1 L522.4,69.0 L529.2,68.9 L536.1,68.8 L542.9,68.7 L549.8,68.6 L556.6,68.6 L563.5,68.5 L570.3,68.5 L577.2,68.4 L584.0,68.4 L590.9,68.3 L597.8,68.3 L604.6,68.3 L611.5,68.3 L618.3,68.2 L625.2,68.2 L632.0,68.2 L638.9,68.2 L645.7,68.2 L652.6,68.1 L659.4,68.1 L666.3,68.1 L673.1,68.1 L680.0,68.1\" fill=\"none\" stroke=\"#b87333\" stroke-width=\"3\"\u003e\u003c\/path\u003e\n\u003cg font-family=\"Helvetica Neue, Arial, sans-serif\" font-size=\"11\" fill=\"#64748b\"\u003e\n\u003ctext x=\"70\" y=\"276\" text-anchor=\"middle\"\u003e20\u003c\/text\u003e\u003ctext x=\"177.4\" y=\"276\" text-anchor=\"middle\"\u003e30\u003c\/text\u003e\u003ctext x=\"312.7\" y=\"276\" text-anchor=\"middle\"\u003e50\u003c\/text\u003e\u003ctext x=\"401.9\" y=\"276\" text-anchor=\"middle\"\u003e70\u003c\/text\u003e\u003ctext x=\"496.4\" y=\"276\" text-anchor=\"middle\"\u003e100\u003c\/text\u003e\u003ctext x=\"603.8\" y=\"276\" text-anchor=\"middle\"\u003e150\u003c\/text\u003e\u003ctext x=\"680\" y=\"276\" text-anchor=\"middle\"\u003e200\u003c\/text\u003e\n\u003ctext x=\"62\" y=\"24\" text-anchor=\"end\"\u003e+6\u003c\/text\u003e\u003ctext x=\"62\" y=\"72\" text-anchor=\"end\"\u003e0\u003c\/text\u003e\u003ctext x=\"62\" y=\"120\" text-anchor=\"end\"\u003e−6\u003c\/text\u003e\u003ctext x=\"62\" y=\"168\" text-anchor=\"end\"\u003e−12\u003c\/text\u003e\u003ctext x=\"62\" y=\"216\" text-anchor=\"end\"\u003e−18\u003c\/text\u003e\u003ctext x=\"62\" y=\"264\" text-anchor=\"end\"\u003e−24\u003c\/text\u003e\n\u003ctext x=\"375\" y=\"296\" text-anchor=\"middle\" letter-spacing=\"1\"\u003eFREQUENCY · Hz\u003c\/text\u003e\n\u003ctext x=\"20\" y=\"140\" text-anchor=\"middle\" transform=\"rotate(-90 20 140)\" letter-spacing=\"1\"\u003eLEVEL · dB\u003c\/text\u003e\n\u003c\/g\u003e\n\u003cg font-family=\"Helvetica Neue, Arial, sans-serif\" font-size=\"12\"\u003e\n\u003crect x=\"80\" y=\"308\" width=\"18\" height=\"4\" fill=\"#b87333\"\u003e\u003c\/rect\u003e\u003ctext x=\"104\" y=\"313\" fill=\"#334155\"\u003eD1 · Qtc 0.707, Fc 45 Hz, F3 45.0 Hz\u003c\/text\u003e\n\u003crect x=\"330\" y=\"308\" width=\"18\" height=\"4\" fill=\"#0f172a\"\u003e\u003c\/rect\u003e\u003ctext x=\"354\" y=\"313\" fill=\"#334155\"\u003eD2 · Qtc 0.79, Fc 46 Hz, F3 41.7 Hz\u003c\/text\u003e\n\u003c\/g\u003e\n\u003c\/svg\u003e\n\u003cp\u003eThe dashed line marks the half-power point. Roll-off below F3 is the gentle 12 dB\/octave slope characteristic of sealed alignments, which cabin gain in a real vehicle substantially fills in. Run the numbers yourself with our \u003ca href=\"\/pages\/sealed-box-calculator\"\u003esealed box calculator\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\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.\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. Dado joints lock the raked baffle, vertical rear panel, and internal brace into the side walls.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4\" MDF sheets plus a trim layer at the driver mounting face. The Solo X 15 puts serious mechanical load into its flange at 2000 watts; this baffle does not flex.\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, side-mounted, with 12 gauge OFC pre-wired.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eFinish and Trim\u003c\/h2\u003e\n\u003ch3\u003ePlush Black Carpet\u003c\/h3\u003e\n\u003cp\u003eEvery enclosure ships wrapped in plush black automotive carpet, the standard finish for the PO Wedge line.\u003c\/p\u003e\n\u003ch3\u003eBlack Acrylic Insert\u003c\/h3\u003e\n\u003cp\u003eThe signature Proline X acrylic insert comes in black.\u003c\/p\u003e\n\u003ch3\u003eBox-Only\u003c\/h3\u003e\n\u003cp\u003eThis listing is box-only. Bring your own Solo X 15.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Kicker Solo X 15 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe Solo X 15 is rated at 2000 watts RMS continuous. In this sealed alignment, target 1200-2000 watts RMS at the woofer's wired impedance for a headroom-rich system; the driver does not need the full spec to sound its best, and sealed loading keeps cone travel controlled through the passband.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eManufactured in Tullahoma, Tennessee on our ShopSabre CNC equipment. 1-year limited warranty. Call 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eKicker Solo X 15: True Butterworth in a Behind-Seat Wedge\u003c\/h2\u003e\n\u003cp\u003e2.76 cubic feet net, solved from factory T\/S to land the Solo X 15 at Qtc 0.707. The flattest, tightest sealed alignment the driver can give, in a wedge that disappears behind the seat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44575720439897,"sku":"PO 15-S W Solo X","price":549.99,"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":"performance-optimized-wedge-sealed-dual-15-enclosure-image-dynamics-idmax15-v4","title":"Performance Optimized Wedge Sealed Dual 15\" Enclosure | Image Dynamics IDMAX15 V.4","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\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\"\u003eDual 15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.62 ft3 Net Per Driver\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.92 ft3 Gross Per Chamber\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 1.56 to 1.67\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e36.00\" x 18\" x 11.73\/18.28\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Image Dynamics IDMAX15 V.4 in a Dual-Driver Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eA 2.5 inch dual voice coil on a 575 ounce motor, 22 mm of one-way travel, a 600 watt RMS rating and a glass-fibre reinforced pulp cone. The alignment below follows from Image Dynamics' own published Thiele-Small parameters, which they give separately for each coil version.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003eImage Dynamics' published Universal sealed airspace for the IDMAX15 V.4 is 1.50 cubic feet per driver. This cabinet holds 1.617. Two IDMAX15 V.4 baskets measure 16.22 inches across and will not sit on a narrower baffle, so the cabinet is sized by the drivers rather than by the airspace and comes out slightly over the recommendation. Larger is the safe direction: it lowers Qtc rather than raising it.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTwo Fully Separate Chambers\u003c\/h2\u003e\n\u003cp\u003eA full divider runs floor to ceiling and front to back, giving each IDMAX15 V.4 its own sealed chamber of 1.92 cu ft gross. Neither cone loads against the other, so the pair stays predictable under hard excursion instead of modulating each other's air load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe IDMAX15 V.4 mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Image Dynamics IDMAX15 V.4\u003c\/h2\u003e\n\u003cp\u003eImage Dynamics' published Universal sealed airspace for the IDMAX15 V.4 is 1.50 cubic feet per driver. This cabinet holds 1.617. Two IDMAX15 V.4 baskets measure 16.22 inches across and will not sit on a narrower baffle, so the cabinet is sized by the drivers rather than by the airspace and comes out slightly over the recommendation. Larger is the safe direction: it lowers Qtc rather than raising it.\u003c\/p\u003e\n\u003cp\u003eThat airspace produces a \u003cstrong\u003ehigh-Q sealed alignment\u003c\/strong\u003e, Qtc 1.56 to 1.67 depending on coil. It is not a Butterworth box and it is not trying to be. Qtc 0.707 is not reachable on this driver at any volume: a sealed system Q can never fall below the driver's own Qts, and Image Dynamics publishes 0.95 for the D2 coil and 1.02 for the D4. What the higher Q buys is a rise around 49 Hz and a half-power point of 33.8 to 34.2 Hz anechoic, which is lower than a flatter alignment of the same size would reach. In a vehicle, cabin gain works on everything below that.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eD2 Qtc 1.559 · D4 Qtc 1.674 · fc 49.2 Hz · F3 33.8 to 34.2 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 14.764 in. Driver mounting depth 10.866 in. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides and divider seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to both driver positions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Image Dynamics IDMAX15 V.4 Pair to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe IDMAX15 V.4 ships as a D2 or a D4. A pair of D2 coils gives 0.5 ohms with all four in parallel, which almost nothing is stable into, and a pair of D4 gives 1 ohm. Sensible targets are \u003cstrong\u003e1 or 2 ohms\u003c\/strong\u003e on a D2 pair and \u003cstrong\u003e2 or 4 ohms\u003c\/strong\u003e on a D4 pair. Work the wiring out before you buy the amplifier, not after.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1200 watts RMS total across the pair. Aim for roughly 840 to 1200 watts at the final wired impedance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the Image Dynamics IDMAX15 V.4 drivers are purchased separately. Call 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eImage Dynamics IDMAX15 V.4 Dual: Built to Image Dynamics' Own Airspace\u003c\/h2\u003e\n\u003cp\u003e1.62 cubic feet net per driver at Qtc 1.56 to 1.67, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44606159519833,"sku":"PO 15D-S W IDMAX BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44606162239577,"sku":"PO 15D-S W IDMAX B","price":479.99,"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_cc502d6a-dce8-4e43-84c0-2746643add7f.jpg?v=1788075683"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-powerbass-3xl1510d","title":"Performance Optimized Wedge Sealed 15\" Enclosure | PowerBass 3XL-1510D","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | PowerBass 3XL-1510D\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e2.25 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.44 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.68\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e23.22\" x 18\" x 12.06\/18.61\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe PowerBass 3XL-1510D in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eA dual 1 ohm voice coil, 24 mm of one-way travel, a 1500 watt RMS rating and the thermal design the 3XL series was built around for class D power. The alignment below is computed from PowerBass's own published Thiele-Small parameters.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e2.25 cubic feet net is PowerBass's published sealed recommendation for the 3XL-1510D, and this cabinet is cut to it exactly. Gross is 2.44 cu ft before the driver's 0.1750 cu ft displacement.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe 3XL-1510D mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the PowerBass 3XL-1510D\u003c\/h2\u003e\n\u003cp\u003eAt 2.25 cubic feet net the 3XL-1510D runs a system Qtc of \u003cstrong\u003e0.680\u003c\/strong\u003e, a well damped alignment. PowerBass publishes 0.670 for this driver at the same airspace, so the cabinet and the maker agree.\u003c\/p\u003e\n\u003cp\u003eF3 lands at 46.1 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.680 · fc 44.2 Hz · F3 46.1 Hz anechoic · Qts 0.452, Vas 80.38 L, Fs 29.4 Hz as published\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 14.0600 in. Driver mounting depth 11.2000 in required. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the PowerBass 3XL-1510D to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eDual 1 ohm coils give 2 ohms in series or \u003cstrong\u003e0.5 ohms in parallel\u003c\/strong\u003e. Almost nothing on the market is stable into 0.5 ohms, so \u003cstrong\u003eseries 2 ohm wiring is the default answer\u003c\/strong\u003e on this driver.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1500 watts RMS. Aim for roughly 1050 to 1500 watts at the final wired impedance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the PowerBass 3XL-1510D driver is purchased separately. Call 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003ePowerBass 3XL-1510D: Cut to PowerBass's Own Airspace\u003c\/h2\u003e\n\u003cp\u003e2.25 cubic feet net at Qtc 0.68, F3 46.1 Hz, built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44607114149977,"sku":"PO 15-S W 3XL1510D BB","price":369.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44607116083289,"sku":"PO 15-S W 3XL1510D B","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO15-SW3XLFront.jpg?v=1788136216"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-stereo-integrity-sql15","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Stereo Integrity SQL-15","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Stereo Integrity SQL-15\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e2.00 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.17 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.82\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eRear-Firing Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e29.16\" x 18\" x 8.26\/14.81\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Stereo Integrity SQL-15 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eA 3 inch dual voice coil on a 20.3 T-m motor, 26 mm of one-way travel and a 1000 watt RMS rating, on the largest cone Stereo Integrity puts in the SQL line.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e2.00 cubic feet net, 2.17 cu ft gross before the driver's 0.160 cu ft displacement.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe SQL-15 mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Stereo Integrity SQL-15\u003c\/h2\u003e\n\u003cp\u003eAt 2.00 cubic feet net the SQL-15 runs a system Qtc of \u003cstrong\u003e0.816\u003c\/strong\u003e with resonance at 47.2 Hz. That is a well damped alignment. Half power lands at 41.8 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.816 · fc 47.2 Hz · F3 41.8 Hz anechoic · computed from Qts 0.57, Vas 59.4 L, Fs 33.0 Hz\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 14.17 in. Driver mounting depth 7.400 in required. Stereo Integrity does not publish a bolt circle for the SQL-15, so this baffle ships undrilled with a threaded insert kit. The woofer locates its own pattern from the supplied screws, you drill those holes to 13\/64 in and press the hurricane nuts in from the baffle backside. Inserts, screws, screw key and drill bit are all included.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Stereo Integrity SQL-15 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe SQL-15 comes as a dual 2 ohm or a dual 4 ohm. A D2 gives 4 ohms in series or \u003cstrong\u003e1 ohm in parallel\u003c\/strong\u003e; a D4 gives 8 ohms or 2 ohms.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1000 watts RMS. Aim for roughly 700 to 1000 watts at the final wired impedance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the Stereo Integrity SQL-15 driver is purchased separately. Call 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eStereo Integrity SQL-15 in a Rear-Firing Wedge\u003c\/h2\u003e\n\u003cp\u003e2.00 cubic feet net at Qtc 0.82, F3 41.8 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44607334023257,"sku":"PO 15-S W SQL15 BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44607336480857,"sku":"PO 15-S W SQL15 B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_SQL15_Front.jpg?v=1788649580"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-stereo-integrity-sql-15","title":"Stereo Integrity SQL-15 Ported 15\" Wedge Enclosure | Proline X","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica 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10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Performance Optimized Wedge 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eA fifteen vented at 34.5 Hz in 1.91 cubic feet, 1.69 dB in the car on 26 mm of travel\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e1.91 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 34.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 34.6 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the Stereo Integrity SQL-15\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e1.91\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e34.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e34.6\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e26.4\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 34.5 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe SQL-15 is a 33 Hz motor with a 0.57 Qts, 59.4 litres of Vas and 1000 watts, and the wedge gives it 1.91 cubic feet net vented at 34.5 Hz through a 26.4 square inch port. The cabinet is 30 inches wide, 18.5 tall, 9.00 inches at the top and 15.73 at the base, the first fifteen in the ported wedge line.\u003c\/p\u003e\n  \u003cp\u003eStereo Integrity's own vented box is 4.25 cubic feet at 22 Hz, a large low-tuned design; this cabinet is the other approach they describe for the SQL series, a small vented box, and it graphs flat: F3 34.6 Hz anechoic on 1.86 dB of ripple and 1.69 dB of in-car spread across 25 to 60 Hz. The port takes 23.54 of the 24.87 inches a 30 inch cabinet gives and runs at 23.1 metres per second in the channel against a 23.3 limit for a port this size, 15.4 at the rounded mouth.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eTrunk-load wedge, explained\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe 20 degree face is the seat side\u003c\/h4\u003e\n\u003cp\u003eA factory rear seat back\n    leans about 20 degrees off vertical. The wedge's raked rear panel matches that lean and tucks\n    against it, so the cabinet uses the triangle of trunk floor a square box wastes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe driver fires rearward\u003c\/h4\u003e\n\u003cp\u003eThe baffle stays vertical and faces\n    the trunk opening. The trunk acts as the acoustic extension into the cabin; nothing about\n    the driver is angled.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e15.73 inches at the base, 9.00 at the top\u003c\/h4\u003e\n\u003cp\u003eSeating a 7.50 inch leg needs 8.71 inches of top depth where the 7.40 inch motor alone would allow 8.16, so the port panel sets the depth. 5.23 inches of flat floor stay clear in front of the panel for the two braces, and the base sits at 15.73 under an 18.5 inch height.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e30.00 inches wide\u003c\/h4\u003e\n\u003cp\u003eWidth is the wedge's free dimension and it\n    buys two things at once here: airspace, and port length, because the port runs the full\n    width of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n  \u003cp\u003eThe port is a triangular slot in the bottom-rear corner. The floor and the raked back wall\n  are two of its three sides; the third is a single panel bevelled to sit flush against both.\n  It runs across the cabinet, opens into the box at the far end and exits through the side\n  panel: a straight run with no bend, 23.54 inches of centreline path.\u003c\/p\u003e\n  \u003cp\u003eThe channel is an isosceles triangle with 7.50 inch legs, 26.4 square inches, running at\n  23.1 metres per second at the tuning frequency. The mouth is that same triangle cut through\n  the side panel with its three edges rounded over at 1\/2 inch, so the opening at the face is\n  39.5 square inches and air leaves it at 15.4 metres per second, against the 17.0 metre per\n  second threshold where a slot port starts to chuff. The panel's throat end carries a 3\/8 inch\n  roundover for the same reason.\u003c\/p\u003e\n  \u003cdiv class=\"df-highlight\"\u003e\n    \u003cp\u003e\u003cstrong\u003eThis enclosure ships dry.\u003c\/strong\u003e Polyfill goes in every sealed Proline X cabinet\n    we build. It does not go in this one. Damping material changes the effective volume the\n    port is tuned against, which moves the tuning away from the 34.5 Hz the port was cut for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eRun a subsonic filter\u003c\/h3\u003e\n  \u003cp\u003eBelow tuning the port stops loading the cone and excursion climbs without limit toward DC,\n  so a 27 Hz high-pass at 24 dB per octave is part of the specification. Set it and the same\n  cabinet takes substantially more power for the same cone travel.\u003c\/p\u003e\n  \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, the power at which the\n  cone reaches the end of its linear travel in this box. What the voice coil can dissipate as\n  heat is a separate ceiling set by Stereo Integrity.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eCut for this driver, not for a catalogue\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eCut to Stereo Integrity's published 14.170 inch cutout through a\n    double-layer 1.5 inch baffle, with a cosmetic front layer routed for the acrylic insert.\n    Threaded inserts at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eClearance\u003c\/h4\u003e\n\u003cp\u003eStereo Integrity quote Xmax at 70 percent BL, so the printed 26 mm is derated to 22.1 for the excursion check; the cone uses 7.6 of that at 1000 watts with the subsonic filter set. The channel runs 0.2 metres per second under its limit at rated power, so the filter and a clean 1000 watts are the operating assumptions. 7.400 inches of mounting depth clears the panel. We also build this driver as a 2.00 cubic foot sealed wedge, Stereo Integrity's sealed volume, and the graphs tab compares the two.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eTwo windowed C braces run the cabinet profile at the third points of the width and seat on the port panel; the windows keep the cavity one chamber.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJoinery\u003c\/h4\u003e\n\u003cp\u003eV-groove and dado throughout, 0.75 inch Langboard\n    Elite MDF, the shell folded from one strip with the sides dropped into dados and the port\n    panel seated in dados of its own.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003ePower, wiring and warranty\u003c\/h3\u003e\n  \u003cp\u003eStereo Integrity rate the SQL-15 at 1000 W RMS. Terminal cup is side mounted on the side opposite the port\n  mouth. A dual 2 ohm driver wired parallel presents 1 ohm, which many amplifiers are not\n  stable into; series at 4 ohm is the safe default unless yours is rated for it.\u003c\/p\u003e\n  \u003cp\u003ePerformance Optimized carries a 1-year warranty. Built to order in Tullahoma, Tennessee. The\n  driver is not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n  \u003cp\u003eCut, folded and finished for the Stereo Integrity SQL-15. The alignment, the port geometry and the power\n  figures all come from Stereo Integrity's published parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44822725984345,"sku":"PO 15-P W SQL15 BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44822726017113,"sku":"PO 15-P W SQL15 B","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_SQL15_Front.jpg?v=1788481918"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-powerbass-3xl-1501d","title":"PowerBass 3XL-1501D Ported 15\" Wedge Enclosure | Proline X","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 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14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Performance Optimized Wedge 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003ePowerBass's 3XL-1501D vented at 32.5 Hz in 2.36 cubic feet, 1000 watts on 24 mm of travel\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.36 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 32.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 33.1 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the PowerBass 3XL-1501D\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.36\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e32.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e33.1\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e30.1\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 32.5 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe 3XL-1501D is a 25.9 Hz motor with a 0.40 Qts, 117 litres of Vas and 1000 watts on a single 1 ohm coil, and the wedge gives it 2.36 cubic feet net vented at 32.5 Hz through a 30.1 square inch port. The cabinet is 30 inches wide, 18.5 tall, 11.12 inches at the top and 17.86 at the base.\u003c\/p\u003e\n  \u003cp\u003ePowerBass build the 3XL for ported boxes and say so; the wedge is that design at the depth a trunk allows. 32.5 Hz in 2.36 cubic feet gives a 33.1 Hz anechoic F3 on 1.09 dB of ripple and 1.97 dB of in-car spread across 25 to 60 Hz. The port takes 24.22 of the 24.65 inches available and runs at 22.5 metres per second in the channel at the full 1000 watts against a 24.3 limit, 15.4 at the rounded mouth.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eTrunk-load wedge, explained\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe 20 degree face is the seat side\u003c\/h4\u003e\n\u003cp\u003eA factory rear seat back\n    leans about 20 degrees off vertical. The wedge's raked rear panel matches that lean and tucks\n    against it, so the cabinet uses the triangle of trunk floor a square box wastes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe driver fires rearward\u003c\/h4\u003e\n\u003cp\u003eThe baffle stays vertical and faces\n    the trunk opening. The trunk acts as the acoustic extension into the cabin; nothing about\n    the driver is angled.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e17.86 inches at the base, 11.12 at the top\u003c\/h4\u003e\n\u003cp\u003eThe port panel needs 11.01 inches of top depth to seat an 8.00 inch leg and clear the 9.2 inch motor, against 9.96 for the magnet alone, and the base lands at 17.86, inside the 18 inch limit this line allows and flagged as deep. 6.86 inches of flat floor stay clear in front of the panel.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e30.00 inches wide\u003c\/h4\u003e\n\u003cp\u003eWidth is the wedge's free dimension and it\n    buys two things at once here: airspace, and port length, because the port runs the full\n    width of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n  \u003cp\u003eThe port is a triangular slot in the bottom-rear corner. The floor and the raked back wall\n  are two of its three sides; the third is a single panel bevelled to sit flush against both.\n  It runs across the cabinet, opens into the box at the far end and exits through the side\n  panel: a straight run with no bend, 24.22 inches of centreline path.\u003c\/p\u003e\n  \u003cp\u003eThe channel is an isosceles triangle with 8.00 inch legs, 30.1 square inches, running at\n  22.5 metres per second at the tuning frequency. The mouth is that same triangle cut through\n  the side panel with its three edges rounded over at 1\/2 inch, so the opening at the face is\n  44.0 square inches and air leaves it at 15.4 metres per second, against the 17.0 metre per\n  second threshold where a slot port starts to chuff. The panel's throat end carries a 3\/8 inch\n  roundover for the same reason.\u003c\/p\u003e\n  \u003cdiv class=\"df-highlight\"\u003e\n    \u003cp\u003e\u003cstrong\u003eThis enclosure ships dry.\u003c\/strong\u003e Polyfill goes in every sealed Proline X cabinet\n    we build. It does not go in this one. Damping material changes the effective volume the\n    port is tuned against, which moves the tuning away from the 32.5 Hz the port was cut for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eRun a subsonic filter\u003c\/h3\u003e\n  \u003cp\u003eBelow tuning the port stops loading the cone and excursion climbs without limit toward DC,\n  so a 26 Hz high-pass at 24 dB per octave is part of the specification. Set it and the same\n  cabinet takes substantially more power for the same cone travel.\u003c\/p\u003e\n  \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, the power at which the\n  cone reaches the end of its linear travel in this box. What the voice coil can dissipate as\n  heat is a separate ceiling set by PowerBass.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eCut for this driver, not for a catalogue\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eCut to PowerBass's published 14.000 inch cutout through a\n    double-layer 1.5 inch baffle, with a cosmetic front layer routed for the acrylic insert.\n    Threaded inserts at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eClearance\u003c\/h4\u003e\n\u003cp\u003e24 mm of one-way travel and the cone uses 8.0 of it at 1000 watts with the subsonic filter set, so excursion is not the limit; the port is, with 1.8 metres per second in hand at rated power. PowerBass's 3XL cutout template is an image and publishes no frame diameter in text; the ring is cut to an estimate from the 14.00 inch cutout and the tech table says so. Displacement is the 3XL manual's 0.22. 9.200 inches of mounting depth clears the panel.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eTwo windowed C braces run the cabinet profile at the third points of the width and seat on the port panel; the windows keep the cavity one chamber.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJoinery\u003c\/h4\u003e\n\u003cp\u003eV-groove and dado throughout, 0.75 inch Langboard\n    Elite MDF, the shell folded from one strip with the sides dropped into dados and the port\n    panel seated in dados of its own.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003ePower, wiring and warranty\u003c\/h3\u003e\n  \u003cp\u003ePowerBass rate the 3XL-1501D at 1000 W RMS. Terminal cup is side mounted on the side opposite the port\n  mouth. A dual 2 ohm driver wired parallel presents 1 ohm, which many amplifiers are not\n  stable into; series at 4 ohm is the safe default unless yours is rated for it.\u003c\/p\u003e\n  \u003cp\u003ePerformance Optimized carries a 1-year warranty. Built to order in Tullahoma, Tennessee. The\n  driver is not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n  \u003cp\u003eCut, folded and finished for the PowerBass 3XL-1501D. The alignment, the port geometry and the power\n  figures all come from PowerBass's published parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44826805010521,"sku":"PO 15-P W 3XL1501D BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44826805076057,"sku":"PO 15-P W 3XL1501D B","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_3XL1501D_Front.jpg?v=1788469950"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-powerbass-3xl-1502d","title":"PowerBass 3XL-1502D Ported 15\" Wedge Enclosure | Proline X","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 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10px}.df-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}.df-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:#a8a29e}.df-sw{width:22px;height:3px;border-radius:2px;display:inline-block}.df-note{background:#292524;border:1px solid #44403c;border-radius:8px;padding:14px 16px;margin-top:10px}.df-note p{margin:0;color:#d6d3d1;font-size:13.5px;line-height:1.6}.df-link{color:#7089ff;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:40px 36px;text-align:center;color:#fff}.df-cta h3{color:#fff;font-size:1.4em;margin:0 0 10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Performance Optimized Wedge 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003ePowerBass's 3XL-1502D vented at 32 Hz in 2.33 cubic feet, a 32.1 Hz reach on 1000 watts\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.33 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 32.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 32.1 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the PowerBass 3XL-1502D\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.33\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e32.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e32.1\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e28.2\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 32.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe 3XL-1502D is a 24.2 Hz motor with a 0.42 Qts, 123 litres of Vas and 1000 watts on dual 2 ohm coils, and the wedge gives it 2.33 cubic feet net vented at 32 Hz through a 28.2 square inch port. The cabinet is 30 inches wide, 18.5 tall, 10.88 inches at the top and 17.61 at the base.\u003c\/p\u003e\n  \u003cp\u003ePowerBass build the 3XL for ported boxes and say so. 32 Hz in 2.33 cubic feet gives a 32.1 Hz anechoic F3 on 1.72 dB of ripple and 1.93 dB of in-car spread across 25 to 60 Hz. The port takes 23.77 of the 24.76 inches available and runs at 22.5 metres per second in the channel at the full 1000 watts against a 22.9 limit, 15.2 at the rounded mouth.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eTrunk-load wedge, explained\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe 20 degree face is the seat side\u003c\/h4\u003e\n\u003cp\u003eA factory rear seat back\n    leans about 20 degrees off vertical. The wedge's raked rear panel matches that lean and tucks\n    against it, so the cabinet uses the triangle of trunk floor a square box wastes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe driver fires rearward\u003c\/h4\u003e\n\u003cp\u003eThe baffle stays vertical and faces\n    the trunk opening. The trunk acts as the acoustic extension into the cabin; nothing about\n    the driver is angled.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e17.61 inches at the base, 10.88 at the top\u003c\/h4\u003e\n\u003cp\u003eThe port panel needs 10.76 inches of top depth to seat a 7.75 inch leg and clear the 9.2 inch motor, against 9.96 for the magnet alone, and the base lands at 17.61, inside the 18 inch limit this line allows and flagged as deep. 6.86 inches of flat floor stay clear in front of the panel.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e30.00 inches wide\u003c\/h4\u003e\n\u003cp\u003eWidth is the wedge's free dimension and it\n    buys two things at once here: airspace, and port length, because the port runs the full\n    width of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n  \u003cp\u003eThe port is a triangular slot in the bottom-rear corner. The floor and the raked back wall\n  are two of its three sides; the third is a single panel bevelled to sit flush against both.\n  It runs across the cabinet, opens into the box at the far end and exits through the side\n  panel: a straight run with no bend, 23.77 inches of centreline path.\u003c\/p\u003e\n  \u003cp\u003eThe channel is an isosceles triangle with 7.75 inch legs, 28.2 square inches, running at\n  22.5 metres per second at the tuning frequency. The mouth is that same triangle cut through\n  the side panel with its three edges rounded over at 1\/2 inch, so the opening at the face is\n  41.7 square inches and air leaves it at 15.2 metres per second, against the 17.0 metre per\n  second threshold where a slot port starts to chuff. The panel's throat end carries a 3\/8 inch\n  roundover for the same reason.\u003c\/p\u003e\n  \u003cdiv class=\"df-highlight\"\u003e\n    \u003cp\u003e\u003cstrong\u003eThis enclosure ships dry.\u003c\/strong\u003e Polyfill goes in every sealed Proline X cabinet\n    we build. It does not go in this one. Damping material changes the effective volume the\n    port is tuned against, which moves the tuning away from the 32.0 Hz the port was cut for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eRun a subsonic filter\u003c\/h3\u003e\n  \u003cp\u003eBelow tuning the port stops loading the cone and excursion climbs without limit toward DC,\n  so a 25 Hz high-pass at 24 dB per octave is part of the specification. Set it and the same\n  cabinet takes substantially more power for the same cone travel.\u003c\/p\u003e\n  \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, the power at which the\n  cone reaches the end of its linear travel in this box. What the voice coil can dissipate as\n  heat is a separate ceiling set by PowerBass.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eCut for this driver, not for a catalogue\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eCut to PowerBass's published 14.000 inch cutout through a\n    double-layer 1.5 inch baffle, with a cosmetic front layer routed for the acrylic insert.\n    Threaded inserts at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eClearance\u003c\/h4\u003e\n\u003cp\u003e24 mm of one-way travel and the cone uses 7.9 of it at 1000 watts with the subsonic filter set; the port, not the cone, is the limit, with 0.4 metres per second in hand at rated power, so the filter stays on. PowerBass's 3XL cutout template is an image and publishes no frame diameter in text; the ring is cut to an estimate from the 14.00 inch cutout and the tech table says so. Displacement is the 3XL manual's 0.22. 9.200 inches of mounting depth clears the panel.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eTwo windowed C braces run the cabinet profile at the third points of the width and seat on the port panel; the windows keep the cavity one chamber.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJoinery\u003c\/h4\u003e\n\u003cp\u003eV-groove and dado throughout, 0.75 inch Langboard\n    Elite MDF, the shell folded from one strip with the sides dropped into dados and the port\n    panel seated in dados of its own.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003ePower, wiring and warranty\u003c\/h3\u003e\n  \u003cp\u003ePowerBass rate the 3XL-1502D at 1000 W RMS. Terminal cup is side mounted on the side opposite the port\n  mouth. A dual 2 ohm driver wired parallel presents 1 ohm, which many amplifiers are not\n  stable into; series at 4 ohm is the safe default unless yours is rated for it.\u003c\/p\u003e\n  \u003cp\u003ePerformance Optimized carries a 1-year warranty. Built to order in Tullahoma, Tennessee. The\n  driver is not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n  \u003cp\u003eCut, folded and finished for the PowerBass 3XL-1502D. The alignment, the port geometry and the power\n  figures all come from PowerBass's published parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44826805174361,"sku":"PO 15-P W 3XL1502D BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44826805272665,"sku":"PO 15-P W 3XL1502D B","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_3XL1502D_Front.jpg?v=1788469959"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-powerbass-l-1504d","title":"PowerBass L-1504D Ported 15\" Wedge Enclosure | Proline X","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 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14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Performance Optimized Wedge 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eThe L-1504D vented at 31 Hz in 2.02 cubic feet, 1.15 dB in the car\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.02 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 31.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 35.9 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the PowerBass L-1504D\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.02\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e31.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e35.9\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e21.4\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 31.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe L-1504D is a 27 Hz motor with a 0.47 Qts, 111 litres of Vas and 500 watts on dual 4 ohm coils, and the wedge gives it 2.02 cubic feet net vented at 31 Hz through a 21.4 square inch port. The cabinet is 30 inches wide, 18.5 tall, 9.12 inches at the top and 15.86 at the base.\u003c\/p\u003e\n  \u003cp\u003ePowerBass label the L fifteen for both sealed and ported boxes. Vented at 31 Hz in 2.02 cubic feet it reaches 35.9 Hz anechoic on 1.30 dB of ripple and reads 1.15 dB of spread across 25 to 60 Hz in the car. The port needs 22.36 of the 25.21 inches available and runs at 17.3 metres per second in the channel against an 18.3 limit, 11.1 at the rounded mouth.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eTrunk-load wedge, explained\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe 20 degree face is the seat side\u003c\/h4\u003e\n\u003cp\u003eA factory rear seat back\n    leans about 20 degrees off vertical. The wedge's raked rear panel matches that lean and tucks\n    against it, so the cabinet uses the triangle of trunk floor a square box wastes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe driver fires rearward\u003c\/h4\u003e\n\u003cp\u003eThe baffle stays vertical and faces\n    the trunk opening. The trunk acts as the acoustic extension into the cabin; nothing about\n    the driver is angled.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e15.86 inches at the base, 9.12 at the top\u003c\/h4\u003e\n\u003cp\u003eOne of the few cabinets in this line where the magnet, not the port panel, sets the clearance floor: 7.26 inches of top depth for the 6.5 inch motor against 7.06 for the panel, and the alignment takes the cabinet to 9.12 at the top and 15.86 at the base under an 18.5 inch height. 6.11 inches of flat floor stay clear in front of the panel.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e30.00 inches wide\u003c\/h4\u003e\n\u003cp\u003eWidth is the wedge's free dimension and it\n    buys two things at once here: airspace, and port length, because the port runs the full\n    width of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n  \u003cp\u003eThe port is a triangular slot in the bottom-rear corner. The floor and the raked back wall\n  are two of its three sides; the third is a single panel bevelled to sit flush against both.\n  It runs across the cabinet, opens into the box at the far end and exits through the side\n  panel: a straight run with no bend, 22.36 inches of centreline path.\u003c\/p\u003e\n  \u003cp\u003eThe channel is an isosceles triangle with 6.75 inch legs, 21.4 square inches, running at\n  17.3 metres per second at the tuning frequency. The mouth is that same triangle cut through\n  the side panel with its three edges rounded over at 1\/2 inch, so the opening at the face is\n  33.3 square inches and air leaves it at 11.1 metres per second, against the 17.0 metre per\n  second threshold where a slot port starts to chuff. The panel's throat end carries a 3\/8 inch\n  roundover for the same reason.\u003c\/p\u003e\n  \u003cdiv class=\"df-highlight\"\u003e\n    \u003cp\u003e\u003cstrong\u003eThis enclosure ships dry.\u003c\/strong\u003e Polyfill goes in every sealed Proline X cabinet\n    we build. It does not go in this one. Damping material changes the effective volume the\n    port is tuned against, which moves the tuning away from the 31.0 Hz the port was cut for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eRun a subsonic filter\u003c\/h3\u003e\n  \u003cp\u003eBelow tuning the port stops loading the cone and excursion climbs without limit toward DC,\n  so a 24 Hz high-pass at 24 dB per octave is part of the specification. Set it and the same\n  cabinet takes substantially more power for the same cone travel.\u003c\/p\u003e\n  \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, the power at which the\n  cone reaches the end of its linear travel in this box. What the voice coil can dissipate as\n  heat is a separate ceiling set by PowerBass.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eCut for this driver, not for a catalogue\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eCut to PowerBass's published 14.000 inch cutout through a\n    double-layer 1.5 inch baffle, with a cosmetic front layer routed for the acrylic insert.\n    Threaded inserts at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eClearance\u003c\/h4\u003e\n\u003cp\u003e12 mm of one-way travel and the cone uses 6.0 of it at 500 watts with the subsonic filter set. PowerBass publish no displacement for the L series; the 0.18 cubic feet used is an estimate from their M fifteen and the tech table says so. Frame diameter and cutout are from the M and L 15 cutout template. 6.500 inches of mounting depth clears the panel.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eTwo windowed C braces run the cabinet profile at the third points of the width and seat on the port panel; the windows keep the cavity one chamber.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJoinery\u003c\/h4\u003e\n\u003cp\u003eV-groove and dado throughout, 0.75 inch Langboard\n    Elite MDF, the shell folded from one strip with the sides dropped into dados and the port\n    panel seated in dados of its own.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003ePower, wiring and warranty\u003c\/h3\u003e\n  \u003cp\u003ePowerBass rate the L-1504D at 500 W RMS. Terminal cup is side mounted on the side opposite the port\n  mouth. A dual 2 ohm driver wired parallel presents 1 ohm, which many amplifiers are not\n  stable into; series at 4 ohm is the safe default unless yours is rated for it.\u003c\/p\u003e\n  \u003cp\u003ePerformance Optimized carries a 1-year warranty. Built to order in Tullahoma, Tennessee. The\n  driver is not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n  \u003cp\u003eCut, folded and finished for the PowerBass L-1504D. The alignment, the port geometry and the power\n  figures all come from PowerBass's published parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44826805338201,"sku":"PO 15-P W L1504D BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44826805403737,"sku":"PO 15-P W L1504D B","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_L1504D_Front.jpg?v=1788469969"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-powerbass-m-1504","title":"PowerBass M-1504 Ported 15\" Wedge Enclosure | Proline X","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:54px 36px;text-align:center;color:#fff}.df-hero h2{font-size:2.3em;font-weight:800;text-transform:uppercase;letter-spacing:1.5px;margin:0 0 12px;color:#fff}.df-hero p{font-size:1.1em;font-weight:300;opacity:.93;margin:0 0 22px;color:#d6d3d1}.df-badges{display:flex;justify-content:center;flex-wrap:wrap;gap:10px}.df-badge{background:rgba(91,120,255,.18);border:1px solid #5b78ff;color:#99abff;padding:7px 16px;border-radius:18px;font-size:.8em;font-weight:600}.df-stats{display:flex;flex-wrap:wrap;background:#1c1917}.df-stat{flex:1 1 200px;text-align:center;padding:26px 16px;border-right:1px solid #292524;border-bottom:1px solid #292524}.df-stat .n{display:block;font-size:1.6em;font-weight:800;color:#7089ff}.df-stat .l{display:block;font-size:.78em;color:#a8a29e;text-transform:uppercase;letter-spacing:.6px;margin-top:5px}.df-section{padding:42px 36px;border-bottom:1px solid #292524;background:#0c0a09}.df-section:nth-of-type(even){background:#1c1917}.df-section 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solid #44403c;border-radius:8px;overflow:hidden;margin:18px 0}.df-enc-head{padding:12px 16px;font-size:.82em;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:#99abff;background:#001264}.df-enc-table{width:100%;border-collapse:collapse}.df-enc-table th{background:#0c0a09;color:#a8a29e;font-size:.78em;text-transform:uppercase;letter-spacing:.5px;padding:10px 14px;text-align:left;border-bottom:1px solid #44403c}.df-enc-table td{padding:12px 14px;border-bottom:1px solid #292524;color:#d6d3d1;font-size:.95em}.df-enc-table tr:last-child td{border-bottom:none}.df-opt td{background:#14532d;color:#fff;font-weight:600}.df-char{display:block;font-size:.78em;color:#a8a29e;font-weight:400;margin-top:2px}.df-opt .df-char{color:#86efac}.df-graph{background:#0c0a09;border:1px solid #44403c;border-radius:8px;padding:14px;margin:18px 0}.df-graph-title{font-size:.78em;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:#a8a29e;margin:0 0 10px}.df-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}.df-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:#a8a29e}.df-sw{width:22px;height:3px;border-radius:2px;display:inline-block}.df-note{background:#292524;border:1px solid #44403c;border-radius:8px;padding:14px 16px;margin-top:10px}.df-note p{margin:0;color:#d6d3d1;font-size:13.5px;line-height:1.6}.df-link{color:#7089ff;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:40px 36px;text-align:center;color:#fff}.df-cta h3{color:#fff;font-size:1.4em;margin:0 0 10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Performance Optimized Wedge 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eThe M-1504 vented at 28 Hz in 2.22 cubic feet, 1.03 dB in the car, the lowest tuning in the line\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.22 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 28.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 35.4 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the PowerBass M-1504\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.22\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e28.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e35.4\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e21.4\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 28.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe M-1504 is a 22.5 Hz motor with a 0.44 Qts, 182 litres of Vas and 425 watts, and the wedge gives it 2.22 cubic feet net vented at 28 Hz through a 21.4 square inch port. The cabinet is 30 inches wide, 18.5 tall, 10.12 inches at the top and 16.86 at the base.\u003c\/p\u003e\n  \u003cp\u003eA 22.5 Hz motor with 182 litres of Vas is the lowest-resonance driver in the PowerBass set, and it takes the lowest tuning in the ported wedge line, 28 Hz, for a 35.4 Hz anechoic F3 on 1.53 dB of ripple and 1.03 dB of in-car spread across 25 to 60 Hz. PowerBass's own sealed box is 2.75 cubic feet gross for a 34 Hz F3. The port uses 25.17 of the 25.21 inches the width allows and runs at 14.4 metres per second in the channel against a 15.2 limit, 9.3 at the rounded mouth.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eTrunk-load wedge, explained\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe 20 degree face is the seat side\u003c\/h4\u003e\n\u003cp\u003eA factory rear seat back\n    leans about 20 degrees off vertical. The wedge's raked rear panel matches that lean and tucks\n    against it, so the cabinet uses the triangle of trunk floor a square box wastes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe driver fires rearward\u003c\/h4\u003e\n\u003cp\u003eThe baffle stays vertical and faces\n    the trunk opening. The trunk acts as the acoustic extension into the cabin; nothing about\n    the driver is angled.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e16.86 inches at the base, 10.12 at the top\u003c\/h4\u003e\n\u003cp\u003eThe magnet sets the clearance floor here, 7.26 inches of top depth against 7.06 for the panel, and the alignment takes the cabinet to 10.12 at the top and 16.86 at the base, over the 16 inch target and inside the 18 inch limit. 7.11 inches of flat floor stay clear in front of the panel.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e30.00 inches wide\u003c\/h4\u003e\n\u003cp\u003eWidth is the wedge's free dimension and it\n    buys two things at once here: airspace, and port length, because the port runs the full\n    width of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n  \u003cp\u003eThe port is a triangular slot in the bottom-rear corner. The floor and the raked back wall\n  are two of its three sides; the third is a single panel bevelled to sit flush against both.\n  It runs across the cabinet, opens into the box at the far end and exits through the side\n  panel: a straight run with no bend, 25.17 inches of centreline path.\u003c\/p\u003e\n  \u003cp\u003eThe channel is an isosceles triangle with 6.75 inch legs, 21.4 square inches, running at\n  14.4 metres per second at the tuning frequency. The mouth is that same triangle cut through\n  the side panel with its three edges rounded over at 1\/2 inch, so the opening at the face is\n  33.3 square inches and air leaves it at 9.3 metres per second, against the 17.0 metre per\n  second threshold where a slot port starts to chuff. The panel's throat end carries a 3\/8 inch\n  roundover for the same reason.\u003c\/p\u003e\n  \u003cdiv class=\"df-highlight\"\u003e\n    \u003cp\u003e\u003cstrong\u003eThis enclosure ships dry.\u003c\/strong\u003e Polyfill goes in every sealed Proline X cabinet\n    we build. It does not go in this one. Damping material changes the effective volume the\n    port is tuned against, which moves the tuning away from the 28.0 Hz the port was cut for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eRun a subsonic filter\u003c\/h3\u003e\n  \u003cp\u003eBelow tuning the port stops loading the cone and excursion climbs without limit toward DC,\n  so a 22 Hz high-pass at 24 dB per octave is part of the specification. Set it and the same\n  cabinet takes substantially more power for the same cone travel.\u003c\/p\u003e\n  \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, the power at which the\n  cone reaches the end of its linear travel in this box. What the voice coil can dissipate as\n  heat is a separate ceiling set by PowerBass.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eCut for this driver, not for a catalogue\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eCut to PowerBass's published 14.000 inch cutout through a\n    double-layer 1.5 inch baffle, with a cosmetic front layer routed for the acrylic insert.\n    Threaded inserts at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eClearance\u003c\/h4\u003e\n\u003cp\u003e11 mm of one-way travel and the cone uses 6.7 of it at 425 watts with the subsonic filter set. A 28 Hz tuning puts the filter at 22 Hz, so this cabinet reaches lower than most and the filter matters less than usual; leave it set. 6.500 inches of mounting depth clears the panel; frame diameter and cutout are from PowerBass's M and L 15 cutout template, displacement from the M manual.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eTwo windowed C braces run the cabinet profile at the third points of the width and seat on the port panel; the windows keep the cavity one chamber.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJoinery\u003c\/h4\u003e\n\u003cp\u003eV-groove and dado throughout, 0.75 inch Langboard\n    Elite MDF, the shell folded from one strip with the sides dropped into dados and the port\n    panel seated in dados of its own.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003ePower, wiring and warranty\u003c\/h3\u003e\n  \u003cp\u003ePowerBass rate the M-1504 at 425 W RMS. Terminal cup is side mounted on the side opposite the port\n  mouth. A dual 2 ohm driver wired parallel presents 1 ohm, which many amplifiers are not\n  stable into; series at 4 ohm is the safe default unless yours is rated for it.\u003c\/p\u003e\n  \u003cp\u003ePerformance Optimized carries a 1-year warranty. Built to order in Tullahoma, Tennessee. The\n  driver is not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n  \u003cp\u003eCut, folded and finished for the PowerBass M-1504. The alignment, the port geometry and the power\n  figures all come from PowerBass's published parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44826805436505,"sku":"PO 15-P W M1504 BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44826805502041,"sku":"PO 15-P W M1504 B","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_M1504_Front.jpg?v=1788469979"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-powerbass-m-1504d","title":"PowerBass M-1504D Ported 15\" Wedge Enclosure | Proline X","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 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14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Performance Optimized Wedge 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eThe dual-coil M-1504D vented at 28 Hz in 2.22 cubic feet, a 32.5 Hz reach\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.22 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 28.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 32.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the PowerBass M-1504D\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.22\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e28.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e32.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e21.4\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 28.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe M-1504D is a 23 Hz motor with a 0.59 Qts, 144 litres of Vas and 425 watts on dual 4 ohm coils, and the wedge gives it 2.22 cubic feet net vented at 28 Hz through a 21.4 square inch port. The cabinet is 30 inches wide, 18.5 tall, 10.12 inches at the top and 16.86 at the base.\u003c\/p\u003e\n  \u003cp\u003eThe M-1504D shares its cabinet and its 28 Hz tuning with the single-coil M-1504, the lowest tuning in the ported wedge line, and reads 32.5 Hz anechoic on 3.14 dB of ripple with 1.25 dB of in-car spread across 25 to 60 Hz; the higher Qts of the dual-coil motor is where the extra ripple comes from. PowerBass's own sealed box is 2.75 cubic feet gross for a 34 Hz F3. The port uses 25.17 of the 25.21 inches available and runs at 14.9 metres per second in the channel against a 15.2 limit, 9.6 at the rounded mouth.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eTrunk-load wedge, explained\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe 20 degree face is the seat side\u003c\/h4\u003e\n\u003cp\u003eA factory rear seat back\n    leans about 20 degrees off vertical. The wedge's raked rear panel matches that lean and tucks\n    against it, so the cabinet uses the triangle of trunk floor a square box wastes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe driver fires rearward\u003c\/h4\u003e\n\u003cp\u003eThe baffle stays vertical and faces\n    the trunk opening. The trunk acts as the acoustic extension into the cabin; nothing about\n    the driver is angled.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e16.86 inches at the base, 10.12 at the top\u003c\/h4\u003e\n\u003cp\u003eThe magnet sets the clearance floor here, 7.26 inches of top depth against 7.06 for the panel, and the alignment takes the cabinet to 10.12 at the top and 16.86 at the base, over the 16 inch target and inside the 18 inch limit. 7.11 inches of flat floor stay clear in front of the panel.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e30.00 inches wide\u003c\/h4\u003e\n\u003cp\u003eWidth is the wedge's free dimension and it\n    buys two things at once here: airspace, and port length, because the port runs the full\n    width of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n  \u003cp\u003eThe port is a triangular slot in the bottom-rear corner. The floor and the raked back wall\n  are two of its three sides; the third is a single panel bevelled to sit flush against both.\n  It runs across the cabinet, opens into the box at the far end and exits through the side\n  panel: a straight run with no bend, 25.17 inches of centreline path.\u003c\/p\u003e\n  \u003cp\u003eThe channel is an isosceles triangle with 6.75 inch legs, 21.4 square inches, running at\n  14.9 metres per second at the tuning frequency. The mouth is that same triangle cut through\n  the side panel with its three edges rounded over at 1\/2 inch, so the opening at the face is\n  33.3 square inches and air leaves it at 9.6 metres per second, against the 17.0 metre per\n  second threshold where a slot port starts to chuff. The panel's throat end carries a 3\/8 inch\n  roundover for the same reason.\u003c\/p\u003e\n  \u003cdiv class=\"df-highlight\"\u003e\n    \u003cp\u003e\u003cstrong\u003eThis enclosure ships dry.\u003c\/strong\u003e Polyfill goes in every sealed Proline X cabinet\n    we build. It does not go in this one. Damping material changes the effective volume the\n    port is tuned against, which moves the tuning away from the 28.0 Hz the port was cut for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eRun a subsonic filter\u003c\/h3\u003e\n  \u003cp\u003eBelow tuning the port stops loading the cone and excursion climbs without limit toward DC,\n  so a 22 Hz high-pass at 24 dB per octave is part of the specification. Set it and the same\n  cabinet takes substantially more power for the same cone travel.\u003c\/p\u003e\n  \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, the power at which the\n  cone reaches the end of its linear travel in this box. What the voice coil can dissipate as\n  heat is a separate ceiling set by PowerBass.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eCut for this driver, not for a catalogue\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eCut to PowerBass's published 14.000 inch cutout through a\n    double-layer 1.5 inch baffle, with a cosmetic front layer routed for the acrylic insert.\n    Threaded inserts at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eClearance\u003c\/h4\u003e\n\u003cp\u003e11 mm of one-way travel and the cone uses 7.4 of it at 425 watts with the subsonic filter set. PowerBass's published Qts for this driver runs 15 percent above what their own Qes and Qms give; the cabinet is computed from the published set. 6.500 inches of mounting depth clears the panel; frame diameter and cutout are from PowerBass's M and L 15 cutout template, displacement from the M manual.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eTwo windowed C braces run the cabinet profile at the third points of the width and seat on the port panel; the windows keep the cavity one chamber.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJoinery\u003c\/h4\u003e\n\u003cp\u003eV-groove and dado throughout, 0.75 inch Langboard\n    Elite MDF, the shell folded from one strip with the sides dropped into dados and the port\n    panel seated in dados of its own.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003ePower, wiring and warranty\u003c\/h3\u003e\n  \u003cp\u003ePowerBass rate the M-1504D at 425 W RMS. Terminal cup is side mounted on the side opposite the port\n  mouth. A dual 2 ohm driver wired parallel presents 1 ohm, which many amplifiers are not\n  stable into; series at 4 ohm is the safe default unless yours is rated for it.\u003c\/p\u003e\n  \u003cp\u003ePerformance Optimized carries a 1-year warranty. Built to order in Tullahoma, Tennessee. The\n  driver is not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n  \u003cp\u003eCut, folded and finished for the PowerBass M-1504D. The alignment, the port geometry and the power\n  figures all come from PowerBass's published parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44826805534809,"sku":"PO 15-P W M1504D BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44826805600345,"sku":"PO 15-P W M1504D B","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_M1504D_Front.jpg?v=1788469989"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-deaf-bonce-apocalypse-db-3015","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Deaf Bonce Apocalypse DB-3015","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Deaf Bonce Apocalypse DB-3015\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.95 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.08 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.672 to 0.707\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e21.79\" x 18\" x 11.04\/17.59\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Deaf Bonce Apocalypse DB-3015 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eDeaf Bonce's DB-3015: a 3.00 in voice coil on a ferrite motor and a alu frame, rated 2400 W RMS, in D1 and D2 versions. The alignment below is computed from Deaf Bonce's published Thiele-Small parameters, carried per coil version because Deaf Bonce publish them that way.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.95 cubic feet net. That is the Butterworth volume for the DB-3015 D2 coil, computed from Deaf Bonce's published Fs, Qts and Vas. Deaf Bonce publish no sealed recommendation for the DB-3015 (their manual recommends a bass-reflex box), so this alignment is ours, chosen for damping and transient control rather than peak output.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe driver mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Deaf Bonce Apocalypse DB-3015\u003c\/h2\u003e\n\u003cp\u003eIn this box the DB-3015 D2 lands at Qtc 0.707, maximally flat, the reference musical alignment, and the DB-3015 D1 at Qtc 0.672. System resonance sits at 47.8 to 48.9 Hz. Half power lands at 48.9 to 50.4 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.672 to 0.707 · fc 47.8 to 48.9 Hz · F3 48.9 to 50.4 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 13.98 in. Mounting depth available is 10.68 in against the 10.18 in the DB-3015 requires. The cosmetic recess is cut to the 15.82 in frame diameter read from the dimension drawing in Deaf Bonce's manual. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides and brace seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Deaf Bonce Apocalypse DB-3015 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe DB-3015 D1 carries two 1 ohm coils: 2 ohms in series or 0.5 ohm in parallel. The DB-3015 D2 carries two 2 ohm coils: 4 ohms in series or 1 ohm in parallel. Run the coils in series unless the amplifier is rated stable at the parallel load; 0.5 ohm is beyond most amplifiers.\u003c\/p\u003e\n\u003cp\u003ePower handling is 2400 watts RMS. Aim for roughly 1680 to 2400 watts at the impedance you wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the driver is purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDeaf Bonce Apocalypse DB-3015: Built to a Butterworth Alignment\u003c\/h2\u003e\n\u003cp\u003e1.95 cubic feet net at Qtc 0.672 to 0.707, F3 48.9 to 50.4 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44843799806041,"sku":"PO 15-S W 3015 BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44843799871577,"sku":"PO 15-S W 3015 B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_3015_Front.jpg?v=1788648798"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-deaf-bonce-apocalypse-db-3015r","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Deaf Bonce Apocalypse DB-3015R","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Deaf Bonce Apocalypse DB-3015R\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.95 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.08 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.672 to 0.707\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e21.79\" x 18\" x 11.04\/17.59\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Deaf Bonce Apocalypse DB-3015R in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eDeaf Bonce's DB-3015R: a 3.00 in voice coil on a ferrite motor and a alu frame, rated 2800 W RMS, in D1 and D2 versions. The alignment below is computed from Deaf Bonce's published Thiele-Small parameters, carried per coil version because Deaf Bonce publish them that way.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.95 cubic feet net. That is the Butterworth volume for the DB-3015R D2 coil, computed from Deaf Bonce's published Fs, Qts and Vas. Deaf Bonce publish no sealed recommendation for the DB-3015R (their manual recommends a bass-reflex box), so this alignment is ours, chosen for damping and transient control rather than peak output.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe driver mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Deaf Bonce Apocalypse DB-3015R\u003c\/h2\u003e\n\u003cp\u003eIn this box the DB-3015R D2 lands at Qtc 0.707, maximally flat, the reference musical alignment, and the DB-3015R D1 at Qtc 0.672. System resonance sits at 47.8 to 48.9 Hz. Half power lands at 48.9 to 50.4 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.672 to 0.707 · fc 47.8 to 48.9 Hz · F3 48.9 to 50.4 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 13.98 in. Mounting depth available is 10.68 in against the 10.18 in the DB-3015R requires. The cosmetic recess is cut to the 15.82 in frame diameter read from the dimension drawing in Deaf Bonce's manual. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides and brace seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Deaf Bonce Apocalypse DB-3015R to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe DB-3015R D1 carries two 1 ohm coils: 2 ohms in series or 0.5 ohm in parallel. The DB-3015R D2 carries two 2 ohm coils: 4 ohms in series or 1 ohm in parallel. Run the coils in series unless the amplifier is rated stable at the parallel load; 0.5 ohm is beyond most amplifiers.\u003c\/p\u003e\n\u003cp\u003ePower handling is 2800 watts RMS. Aim for roughly 1959 to 2800 watts at the impedance you wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the driver is purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDeaf Bonce Apocalypse DB-3015R: Built to a Butterworth Alignment\u003c\/h2\u003e\n\u003cp\u003e1.95 cubic feet net at Qtc 0.672 to 0.707, F3 48.9 to 50.4 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44843799904345,"sku":"PO 15-S W 3015R BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44843799937113,"sku":"PO 15-S W 3015R B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_3015R_Front.jpg?v=1788648806"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-deaf-bonce-apocalypse-db-sa255","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Deaf Bonce Apocalypse DB-SA255","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Deaf Bonce Apocalypse DB-SA255\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e2.35 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.48 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.707 to 0.765\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e29.50\" x 18\" x 9.35\/15.90\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Deaf Bonce Apocalypse DB-SA255 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eDeaf Bonce's DB-SA255: a 2.50 in voice coil on a ferrite motor and a alu frame, rated 1000 W RMS, in D1 and D2 versions. The alignment below is computed from Deaf Bonce's published Thiele-Small parameters, carried per coil version because Deaf Bonce publish them that way.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e2.35 cubic feet net. That is the Butterworth volume for the DB-SA255 D1 coil, computed from Deaf Bonce's published Fs, Qts and Vas. Deaf Bonce publish no sealed recommendation for the DB-SA255 (their manual recommends a bass-reflex box), so this alignment is ours, chosen for damping and transient control rather than peak output.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe driver mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Deaf Bonce Apocalypse DB-SA255\u003c\/h2\u003e\n\u003cp\u003eIn this box the DB-SA255 D1 lands at Qtc 0.707, maximally flat, the reference musical alignment, and the DB-SA255 D2 at Qtc 0.765. System resonance sits at 44.6 to 45.7 Hz. Half power lands at 42.5 to 44.6 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.707 to 0.765 · fc 44.6 to 45.7 Hz · F3 42.5 to 44.6 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 14.09 in. Mounting depth available is 7.90 in against the 7.40 in the DB-SA255 requires. The cosmetic recess is cut to the 15.70 in frame diameter read from the dimension drawing in Deaf Bonce's manual. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides and brace seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Deaf Bonce Apocalypse DB-SA255 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe DB-SA255 D1 carries two 1 ohm coils: 2 ohms in series or 0.5 ohm in parallel. The DB-SA255 D2 carries two 2 ohm coils: 4 ohms in series or 1 ohm in parallel. Run the coils in series unless the amplifier is rated stable at the parallel load; 0.5 ohm is beyond most amplifiers.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1000 watts RMS. Aim for roughly 700 to 1000 watts at the impedance you wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the driver is purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDeaf Bonce Apocalypse DB-SA255: Built to a Butterworth Alignment\u003c\/h2\u003e\n\u003cp\u003e2.35 cubic feet net at Qtc 0.707 to 0.765, F3 42.5 to 44.6 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44843799969881,"sku":"PO 15-S W SA255 BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44843800002649,"sku":"PO 15-S W SA255 B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_SA255_Front.jpg?v=1788648814"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-deaf-bonce-apocalypse-db-sa2615","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Deaf Bonce Apocalypse DB-SA2615","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Deaf Bonce Apocalypse DB-SA2615\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.34 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.48 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.684 to 0.707\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e19.66\" x 18\" x 8.73\/15.28\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Deaf Bonce Apocalypse DB-SA2615 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eDeaf Bonce's DB-SA2615: a 2.60 in voice coil on a ferrite motor and a steel frame, rated 1500 W RMS, in D1 and D2 versions. The alignment below is computed from Deaf Bonce's published Thiele-Small parameters, carried per coil version because Deaf Bonce publish them that way.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.34 cubic feet net. That is the Butterworth volume for the DB-SA2615 D2 coil, computed from Deaf Bonce's published Fs, Qts and Vas. Deaf Bonce publish no sealed recommendation for the DB-SA2615 (their manual recommends a bass-reflex box), so this alignment is ours, chosen for damping and transient control rather than peak output.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe driver mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Deaf Bonce Apocalypse DB-SA2615\u003c\/h2\u003e\n\u003cp\u003eIn this box the DB-SA2615 D2 lands at Qtc 0.707, maximally flat, the reference musical alignment, and the DB-SA2615 D1 at Qtc 0.684. System resonance sits at 51.3 to 51.7 Hz. Half power lands at 51.7 to 53.1 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.684 to 0.707 · fc 51.3 to 51.7 Hz · F3 51.7 to 53.1 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 13.86 in. Mounting depth available is 8.37 in against the 7.87 in the DB-SA2615 requires. The cosmetic recess is cut to the 15.74 in frame diameter read from the dimension drawing in Deaf Bonce's manual. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides and brace seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Deaf Bonce Apocalypse DB-SA2615 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe DB-SA2615 D1 carries two 1 ohm coils: 2 ohms in series or 0.5 ohm in parallel. The DB-SA2615 D2 carries two 2 ohm coils: 4 ohms in series or 1 ohm in parallel. Run the coils in series unless the amplifier is rated stable at the parallel load; 0.5 ohm is beyond most amplifiers.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1500 watts RMS. Aim for roughly 1050 to 1500 watts at the impedance you wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the driver is purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDeaf Bonce Apocalypse DB-SA2615: Built to a Butterworth Alignment\u003c\/h2\u003e\n\u003cp\u003e1.34 cubic feet net at Qtc 0.684 to 0.707, F3 51.7 to 53.1 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44843800100953,"sku":"PO 15-S W SA2615 BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44843800133721,"sku":"PO 15-S W SA2615 B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_SA2615_Front.jpg?v=1788648830"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-deaf-bonce-apocalypse-db-sa275","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Deaf Bonce Apocalypse DB-SA275","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Deaf Bonce Apocalypse DB-SA275\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.66 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.79 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.640 to 0.707\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e23.39\" x 18\" x 8.71\/15.26\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Deaf Bonce Apocalypse DB-SA275 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eDeaf Bonce's DB-SA275: a 2.75 in voice coil on a ferrite motor and a alu frame, rated 1500 W RMS, in D1 and D2 versions. The alignment below is computed from Deaf Bonce's published Thiele-Small parameters, carried per coil version because Deaf Bonce publish them that way.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.66 cubic feet net. That is the Butterworth volume for the DB-SA275 D2 coil, computed from Deaf Bonce's published Fs, Qts and Vas. Deaf Bonce publish no sealed recommendation for the DB-SA275 (their manual recommends a bass-reflex box), so this alignment is ours, chosen for damping and transient control rather than peak output.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe driver mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Deaf Bonce Apocalypse DB-SA275\u003c\/h2\u003e\n\u003cp\u003eIn this box the DB-SA275 D2 lands at Qtc 0.707, maximally flat, the reference musical alignment, and the DB-SA275 D1 at Qtc 0.640. System resonance sits at 45.2 to 48.1 Hz. Half power lands at 48.1 to 50.5 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.640 to 0.707 · fc 45.2 to 48.1 Hz · F3 48.1 to 50.5 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 14.09 in. Mounting depth available is 8.35 in against the 7.85 in the DB-SA275 requires. The cosmetic recess is cut to the 15.70 in frame diameter read from the dimension drawing in Deaf Bonce's manual. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides and brace seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Deaf Bonce Apocalypse DB-SA275 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe DB-SA275 D1 carries two 1 ohm coils: 2 ohms in series or 0.5 ohm in parallel. The DB-SA275 D2 carries two 2 ohm coils: 4 ohms in series or 1 ohm in parallel. Run the coils in series unless the amplifier is rated stable at the parallel load; 0.5 ohm is beyond most amplifiers.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1500 watts RMS. Aim for roughly 1050 to 1500 watts at the impedance you wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the driver is purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDeaf Bonce Apocalypse DB-SA275: Built to a Butterworth Alignment\u003c\/h2\u003e\n\u003cp\u003e1.66 cubic feet net at Qtc 0.640 to 0.707, F3 48.1 to 50.5 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44843800264793,"sku":"PO 15-S W SA275 BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44843800297561,"sku":"PO 15-S W SA275 B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_SA275_Front.jpg?v=1788648846"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-deaf-bonce-apocalypse-db-sa305","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Deaf Bonce Apocalypse DB-SA305","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Deaf Bonce Apocalypse DB-SA305\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.31 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.44 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.651 to 0.707\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e19.28\" x 18\" x 8.71\/15.26\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Deaf Bonce Apocalypse DB-SA305 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eDeaf Bonce's DB-SA305: a 3.00 in voice coil on a ferrite motor and a alu frame, rated 2000 W RMS, in D1 and D2 versions. The alignment below is computed from Deaf Bonce's published Thiele-Small parameters, carried per coil version because Deaf Bonce publish them that way.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.31 cubic feet net. That is the Butterworth volume for the DB-SA305 D2 coil, computed from Deaf Bonce's published Fs, Qts and Vas. Deaf Bonce publish no sealed recommendation for the DB-SA305 (their manual recommends a bass-reflex box), so this alignment is ours, chosen for damping and transient control rather than peak output.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe driver mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Deaf Bonce Apocalypse DB-SA305\u003c\/h2\u003e\n\u003cp\u003eIn this box the DB-SA305 D2 lands at Qtc 0.707, maximally flat, the reference musical alignment, and the DB-SA305 D1 at Qtc 0.651. System resonance sits at 51.6 to 52.6 Hz. Half power lands at 52.6 to 56.4 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.651 to 0.707 · fc 51.6 to 52.6 Hz · F3 52.6 to 56.4 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 14.09 in. Mounting depth available is 8.35 in against the 7.85 in the DB-SA305 requires. The cosmetic recess is cut to the 15.70 in frame diameter read from the dimension drawing in Deaf Bonce's manual. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides and brace seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Deaf Bonce Apocalypse DB-SA305 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe DB-SA305 D1 carries two 1 ohm coils: 2 ohms in series or 0.5 ohm in parallel. The DB-SA305 D2 carries two 2 ohm coils: 4 ohms in series or 1 ohm in parallel. Run the coils in series unless the amplifier is rated stable at the parallel load; 0.5 ohm is beyond most amplifiers.\u003c\/p\u003e\n\u003cp\u003ePower handling is 2000 watts RMS. Aim for roughly 1400 to 2000 watts at the impedance you wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the driver is purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDeaf Bonce Apocalypse DB-SA305: Built to a Butterworth Alignment\u003c\/h2\u003e\n\u003cp\u003e1.31 cubic feet net at Qtc 0.651 to 0.707, F3 52.6 to 56.4 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44843800330329,"sku":"PO 15-S W SA305 BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44843800363097,"sku":"PO 15-S W SA305 B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_SA305_Front.jpg?v=1788648854"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-deaf-bonce-apocalypse-db-sa415","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Deaf Bonce Apocalypse DB-SA415","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Deaf Bonce Apocalypse DB-SA415\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e2.23 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.36 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.707\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e21.14\" x 18\" x 13.01\/19.56\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Deaf Bonce Apocalypse DB-SA415 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eDeaf Bonce's DB-SA415: a 4.00 in voice coil on a ferrite motor and a alu frame, rated 3500 W RMS, in D1 and D2 versions. The alignment below is computed from Deaf Bonce's published Thiele-Small parameters, carried per coil version because Deaf Bonce publish them that way.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e2.23 cubic feet net. That is the Butterworth volume for the DB-SA415 D2 coil, computed from Deaf Bonce's published Fs, Qts and Vas. Deaf Bonce publish no sealed recommendation for the DB-SA415 (their manual recommends a bass-reflex box), so this alignment is ours, chosen for damping and transient control rather than peak output.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe driver mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Deaf Bonce Apocalypse DB-SA415\u003c\/h2\u003e\n\u003cp\u003eIn this box the DB-SA415 D2 lands at Qtc 0.707, maximally flat, the reference musical alignment, and the DB-SA415 D1 at Qtc 0.707. System resonance sits at 53.0 Hz. Half power lands at 53.0 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.707 · fc 53.0 Hz · F3 53.0 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 13.94 in. Mounting depth available is 12.23 in against the 11.73 in the DB-SA415 requires. The cosmetic recess is cut to the 15.81 in frame diameter read from the dimension drawing in Deaf Bonce's manual. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides and brace seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Deaf Bonce Apocalypse DB-SA415 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe DB-SA415 D1 carries two 1 ohm coils: 2 ohms in series or 0.5 ohm in parallel. The DB-SA415 D2 carries two 2 ohm coils: 4 ohms in series or 1 ohm in parallel. Run the coils in series unless the amplifier is rated stable at the parallel load; 0.5 ohm is beyond most amplifiers.\u003c\/p\u003e\n\u003cp\u003ePower handling is 3500 watts RMS. Aim for roughly 2450 to 3500 watts at the impedance you wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the driver is purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDeaf Bonce Apocalypse DB-SA415: Built to a Butterworth Alignment\u003c\/h2\u003e\n\u003cp\u003e2.23 cubic feet net at Qtc 0.707, F3 53.0 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44843800723545,"sku":"PO 15-S W SA415 BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44843800789081,"sku":"PO 15-S W SA415 B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_SA415_Front.jpg?v=1788648878"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-deaf-bonce-machete-m15-v2-sport","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Deaf Bonce Machete M15 v2 Sport","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Deaf Bonce Machete M15 v2 Sport\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e2.23 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.36 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.707 to 0.729\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e29.50\" x 18\" x 8.88\/15.43\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Deaf Bonce Machete M15 v2 Sport in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eDeaf Bonce's M15 v2 Sport: a 2.75 in voice coil on a ferrite motor and a steel frame, rated 950 W RMS, in D1 and D2 versions. The alignment below is computed from Deaf Bonce's published Thiele-Small parameters, carried per coil version because Deaf Bonce publish them that way.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e2.23 cubic feet net. That is the Butterworth volume for the M15 v2 D1 Sport coil, computed from Deaf Bonce's published Fs, Qts and Vas. Deaf Bonce publish no sealed recommendation for the M15 v2 Sport (their manual recommends a bass-reflex box), so this alignment is ours, chosen for damping and transient control rather than peak output.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe driver mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Deaf Bonce Machete M15 v2 Sport\u003c\/h2\u003e\n\u003cp\u003eIn this box the M15 v2 D1 Sport lands at Qtc 0.707, maximally flat, the reference musical alignment, and the M15 v2 D2 Sport at Qtc 0.729. System resonance sits at 42.2 to 43.8 Hz. Half power lands at 41.0 to 43.8 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.707 to 0.729 · fc 42.2 to 43.8 Hz · F3 41.0 to 43.8 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 13.95 in. Mounting depth available is 8.02 in against the 7.52 in the M15 v2 Sport requires. Deaf Bonce print no frame diameter for the M15 v2 Sport, so the recess is bounded at the 13.95 in cutout plus 1.5 in, the widest flange overhang across the Machete drawings, and cannot land undersize. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides and brace seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Deaf Bonce Machete M15 v2 Sport to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe M15 v2 D1 Sport carries two 1 ohm coils: 2 ohms in series or 0.5 ohm in parallel. The M15 v2 D2 Sport carries two 2 ohm coils: 4 ohms in series or 1 ohm in parallel. Run the coils in series unless the amplifier is rated stable at the parallel load; 0.5 ohm is beyond most amplifiers.\u003c\/p\u003e\n\u003cp\u003ePower handling is 950 watts RMS. Aim for roughly 665 to 950 watts at the impedance you wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the driver is purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDeaf Bonce Machete M15 v2 Sport: Built to a Butterworth Alignment\u003c\/h2\u003e\n\u003cp\u003e2.23 cubic feet net at Qtc 0.707 to 0.729, F3 41.0 to 43.8 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44843803803737,"sku":"PO 15-S W M15V2SP BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44843803836505,"sku":"PO 15-S W M15V2SP B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_M15V2SP_Front.jpg?v=1788649006"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-deaf-bonce-machete-mfx38","title":"Performance Optimized Wedge Sealed 15\" Enclosure | Deaf Bonce Machete MFX38","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Deaf Bonce Machete MFX38\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.35 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.48 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.707\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e19.98\" x 18\" x 8.60\/15.15\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe Deaf Bonce Machete MFX38 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eDeaf Bonce's MFX38: a 3.00 in voice coil on a ferrite motor and a alu frame, rated 750 W RMS, in one 4 ohm version. The alignment below is computed from Deaf Bonce's published Thiele-Small parameters, carried per coil version because Deaf Bonce publish them that way.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.35 cubic feet net. That is the Butterworth volume for the MFX38 D2 coil, computed from Deaf Bonce's published Fs, Qts and Vas. Deaf Bonce publish no sealed recommendation for the MFX38 (their manual recommends a bass-reflex box), so this alignment is ours, chosen for damping and transient control rather than peak output.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe driver mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Deaf Bonce Machete MFX38\u003c\/h2\u003e\n\u003cp\u003eQtc lands at 0.707, maximally flat, the reference musical alignment, with system resonance at 50.7 Hz. Half power lands at 50.7 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.707 · fc 50.7 Hz · F3 50.7 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 14.06 in. Mounting depth available is 8.24 in against the 7.74 in the MFX38 requires. The cosmetic recess is cut to the 15.55 in frame diameter read from the dimension drawing in Deaf Bonce's manual. Threaded inserts pressed into the baffle backside at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides and brace seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\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 and carbon fiber composite, 12 gauge OFC pre-wired to the driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Deaf Bonce Machete MFX38 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe MFX38 is a single 4 ohm coil, so there is no wiring choice to make: one pair of leads to the cup, 4 ohms at the amplifier.\u003c\/p\u003e\n\u003cp\u003ePower handling is 750 watts RMS. Aim for roughly 525 to 750 watts at 4 ohms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the driver is purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDeaf Bonce Machete MFX38: Built to a Butterworth Alignment\u003c\/h2\u003e\n\u003cp\u003e1.35 cubic feet net at Qtc 0.707, F3 50.7 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44843807703129,"sku":"PO 15-S W MFX38 BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44843807768665,"sku":"PO 15-S W MFX38 B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_MFX38_Front.jpg?v=1788649038"},{"product_id":"professional-series-ported-15-enclosure-image-dynamics-idmax15-v4","title":"Professional Series Ported 15\" Enclosure | Image Dynamics IDMAX15 V4","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:54px 36px;text-align:center;color:#fff}.df-hero h2{font-size:2.3em;font-weight:800;text-transform:uppercase;letter-spacing:1.5px;margin:0 0 12px;color:#fff}.df-hero p{font-size:1.1em;font-weight:300;opacity:.93;margin:0 0 22px;color:#d6d3d1}.df-badges{display:flex;justify-content:center;flex-wrap:wrap;gap:10px}.df-badge{background:rgba(91,120,255,.18);border:1px solid #5b78ff;color:#99abff;padding:7px 16px;border-radius:18px;font-size:.8em;font-weight:600}.df-stats{display:flex;flex-wrap:wrap;background:#1c1917}.df-stat{flex:1 1 200px;text-align:center;padding:26px 16px;border-right:1px solid #292524;border-bottom:1px solid #292524}.df-stat .n{display:block;font-size:1.6em;font-weight:800;color:#7089ff}.df-stat 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10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Professional 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eThe fifteen that needs a full-size box, vented near 27 Hz on a three-layer baffle\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.85 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 30.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 29.1 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003e2.25\" three-layer baffle\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the IDMAX15 V4\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.85\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e30.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e29.1\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e45.4\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 30.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe IDMAX15 V4 carries 10.433 inches of mounting depth and a 16 inch frame, and neither trunk chassis will take it: the ported Down Fire caps at 8.50 inches of height and the wedge has no fifteen-inch ported height it fits. The Professional box stands 18 inches tall, flush-mounts the flange in a 2.25 inch baffle built from three 3\/4 inch layers, and gives the motor the depth it needs. It gets 2.72 cubic feet net, vented at 26.5 Hz, in a 36 inch wide cabinet beside the front port.\u003c\/p\u003e\n  \u003cp\u003eImage Dynamics publish a Qts of 0.95 at 30 Hz for the D2 coil, and that figure is genuine: their Qes and Qms reproduce it and the motor constants agree. A driver that damped wants a large box and a low vent, and their own manual says so, recommending 3.0 cubic feet gross at 27 Hz for the Universal alignment. This cabinet lands on it: 4.12 gross, 2.72 net after the driver, port and braces, vented at 26.5 Hz, which is where the in-car curve comes out flattest. Passband ripple sits at 4.46 dB, and that number is the driver's Q rather than the box; tuning higher or lower makes it worse, not better.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhat makes it Professional\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThree-layer baffle, flush mount\u003c\/h4\u003e\n\u003cp\u003eThree layers of 3\/4 inch Langboard Elite make a 2.25 inch\n    front. The outer layer is routed to the flange, so the woofer sits flush with the face; the two layers behind it\n    carry the mounting hardware and the load.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eImage Dynamics logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Image Dynamics mark sits in the outer\n    layer beside the woofer. It is standard on every Professional cabinet.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eThreaded inserts pressed into the baffle on the published 15.551 inch bolt circle, stainless machine screws included.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePort gated at 720 W\u003c\/h4\u003e\n\u003cp\u003eThe 45.4 square inch slot beside the woofer is sized so the\n    channel runs 10.4 metres per second and the mouth 7.2 metres per second at 1.2 times the driver's rating, under the\n    17 metres per second where a slot starts to chuff. The channel runs 9.50 inches along its wall and turns once along the back wall for another 20.46 inches, which is why a 30.0 Hz tuning fits a 16.00 inch deep box.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhy this is a Professional build\u003c\/h4\u003e\n\u003cp\u003eEvery driver is run through the Performance Optimized wedge and down-fire before this chassis; the Professional box is where a driver lands when that smaller envelope, 30 inches wide and 18 inches deep with a triangular side port, cannot give it what it needs at its rated power. The IDMAX15 V4 did not clear the ripple 5.51 dB over 4.5 gate there: the nearest wedge that fits is 24.5 by 11.25 by 17.98 inches with a 23.0 square inch port, and no tuning, width or depth inside that envelope passes. The slot on this box reaches 45.4 square inches.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat the price covers\u003c\/h4\u003e\n\u003cp\u003eEvery Professional cabinet is priced the same way, by its size: this one is 6.00 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 70 lb parcel and checkout adds nothing. The Performance Optimized 15 inch ported wedge is $499.99. The $102 difference is the larger box and the port this driver needs to run at its rating.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat Image Dynamics recommend\u003c\/h4\u003e\n\u003cp\u003eImage Dynamics publish a vented box for the Image Dynamics IDMAX15 V4 at 2.00 cubic feet gross including the port, tuned to 30.0 Hz. This cabinet holds 4.28 cubic feet gross and tunes to 30.0 Hz. The extra air lowers the low corner rather than raising output at tuning.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe cabinet\u003c\/h3\u003e\n  \u003cp\u003e36.00\" W x 18.00\" H x 16.00\" D external. Two windowed braces run front to back either side of the woofer, clearing the cutout by two and a half inches. The box ships dry: polyfill detunes a ported alignment. Inside the 36 by 18 Professional envelope for a single 15, with the depth the motor needs. It ships as a parcel.\u003c\/p\u003e\n  \u003cp\u003eThe two coils publish different Vas figures, 77.5 litres for the D2 and 84.8 for the D4, which a shared cone and suspension cannot produce. The D2 column is the published alignment here and the cabinet fits either coil. Image Dynamics recommend a sealed box for this driver; the ported Professional gives up nothing in control above 30 Hz and adds the output the motor is rated for, provided the subsonic filter is set.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe numbers to respect\u003c\/h3\u003e\n  \n  \u003cp\u003eSet a 24 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n  place the cone reaches 8.0 mm of its 22.0 mm at 720 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44845335511129,"sku":"Pro 15-P IDMAX","price":601.99,"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_b6e06413-91b2-4e57-984c-0f476d2de136.jpg?v=1788667232"},{"product_id":"professional-series-ported-15-enclosure-sundown-audio-u-series-v-1-15","title":"Professional Series Ported 15\" Enclosure | Sundown Audio U-Series v.1 15","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 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10px}.df-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}.df-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:#a8a29e}.df-sw{width:22px;height:3px;border-radius:2px;display:inline-block}.df-note{background:#292524;border:1px solid #44403c;border-radius:8px;padding:14px 16px;margin-top:10px}.df-note p{margin:0;color:#d6d3d1;font-size:13.5px;line-height:1.6}.df-link{color:#7089ff;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:40px 36px;text-align:center;color:#fff}.df-cta h3{color:#fff;font-size:1.4em;margin:0 0 10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Professional 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eA ported fifteen-inch box built for the U-Series v.1 15, tuned flat and shared by both coil options\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.52 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 34.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 31.6 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003e2.25\" three-layer baffle\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the U-Series v.1 15\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.52\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e34.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e31.6\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e49.5\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 34.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe Sundown Audio U-Series v.1 15 is a shallow driver at 9.05 inches deep, and this cabinet holds it in 2.525 cubic feet net, vented at 34.0 Hz through a 49.5 square inch port. F3 lands at 31.6 Hz with just 0.16 dB of passband ripple, the flattest response of any Professional pick in this size class. At 36 inches wide, 18 inches tall and 15.0 inches deep, it is the shallow-mount fifteen inch envelope.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Sundown Audio does not publish the mounting hole locations for the U-Series v.1 15, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer; one kit serves one woofer.\u003c\/p\u003e\n  \u003cp\u003eAt the coil's rated power of 1500 W the port on this box is nowhere near the chuff line; it stays clean all the way to 2091 W before the mouth velocity crosses it, so the coil's own heat is the limit here, not the port. Sundown publish a Qts of 0.31 for the D2 coil, with the Qes and Qms behind it in close agreement, describing a driver damped enough to sit flat rather than peak anywhere in the passband. Ripple across the passband holds at 0.16 dB, essentially flat, and the in-car curve stays close to that same line.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhat makes it Professional\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThree-layer baffle, flush mount\u003c\/h4\u003e\n\u003cp\u003eThree layers of 3\/4 inch Langboard Elite make a 2.25 inch\n    front. The outer layer is routed to the flange, so the woofer sits flush with the face; the two layers behind it\n    carry the mounting hardware and the load.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eSundown Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Sundown Audio mark sits in the outer\n    layer beside the woofer. It is standard on every Professional cabinet.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThreaded insert kit ships with this box\u003c\/h4\u003e\n\u003cp\u003eThreaded insert kit included, inserts NOT pre-installed: the manufacturer publishes no mounting hole locations, so the kit ships with the box for installation when the woofer goes in: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, allen key and gasket tape.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePort gated at 1500 W\u003c\/h4\u003e\n\u003cp\u003eThe 49.5 square inch slot beside the woofer is sized so the\n    channel runs 20.4 metres per second and the mouth 14.4 metres per second at the driver's rated power, under the\n    17 metres per second where a slot starts to chuff. The channel runs 8.25 inches along its wall and turns once along the back wall for another 19.84 inches, which is why a 34.0 Hz tuning fits a 15.00 inch deep box.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhy this is a Professional build\u003c\/h4\u003e\n\u003cp\u003eEvery driver is run through the Performance Optimized wedge and down-fire before this chassis; the Professional box is where a driver lands when that smaller envelope, 30 inches wide and 18 inches deep with a triangular side port, cannot give it what it needs at its rated power. The U-Series v.1 15 did not clear the port gate there. The calmest wedge port that fits that envelope is 32.0 square inches at 26.0 by 11.12 by 17.86 inches, and its mouth runs 20.3 metres per second at 1500 W against the 17 metres per second line where a port starts to chuff. That port would stay clean to about 1054 W. The slot on this box reaches 49.5 square inches and holds the mouth at 14.4 metres per second at 1500 W.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat the price covers\u003c\/h4\u003e\n\u003cp\u003eEvery Professional cabinet is priced the same way, by its size: this one is 5.62 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 68 lb parcel and checkout adds nothing. The Performance Optimized 15 inch ported wedge is $499.99. The $79 difference is the larger box and the port this driver needs to run at its rating.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat Sundown Audio recommend\u003c\/h4\u003e\n\u003cp\u003eSundown Audio publish a vented box for the U-Series v.1 15 at 3.00 cubic feet on a basis they do not state, tuned to 35.0 Hz. This cabinet holds 2.52 cubic feet net and tunes to 34.0 Hz. They call for a port area of 48 sq in. The chassis envelope sets the volume here, and the port is sized so the mouth stays under the chuff threshold at the design power rather than to reach their figure.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe cabinet\u003c\/h3\u003e\n  \u003cp\u003e36.00\" W x 18.00\" H x 15.00\" D external. Two windowed braces run front to back either side of the woofer, clearing the cutout by two and a half inches. The box ships dry: polyfill detunes a ported alignment. This is our single fifteen inch Professional envelope built for the U-Series v.1 15's shallow mount, shared by the D2 and D4 coils. It ships as a parcel.\u003c\/p\u003e\n  \u003cp\u003eSundown publish per-coil T\/S for the U-Series v.1 15, and the D2 column is what this cabinet is built to; the D4 winding shares the same basket and frame and fits this same cabinet. Nothing about this driver's numbers needed a workaround or an estimate. Sundown Audio does not publish the mounting hole locations for the U-Series v.1 15, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer; one kit serves one woofer.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe numbers to respect\u003c\/h3\u003e\n  \n  \u003cp\u003eSet a 27 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n  place the cone reaches 8.0 mm of its 30.0 mm at 1500 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44853116567641,"sku":"Pro 15-P U15","price":578.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Pro_15-P_U15_Front.jpg?v=1788875598"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-sundown-audio-e-series-v-4-15","title":"Sundown Audio E-Series v.4 15 Ported 15\" Wedge Enclosure | Proline X","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:54px 36px;text-align:center;color:#fff}.df-hero 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10px}.df-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}.df-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:#a8a29e}.df-sw{width:22px;height:3px;border-radius:2px;display:inline-block}.df-note{background:#292524;border:1px solid #44403c;border-radius:8px;padding:14px 16px;margin-top:10px}.df-note p{margin:0;color:#d6d3d1;font-size:13.5px;line-height:1.6}.df-link{color:#7089ff;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:40px 36px;text-align:center;color:#fff}.df-cta h3{color:#fff;font-size:1.4em;margin:0 0 10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Performance Optimized Wedge 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eThe E-Series v.4 15, vented at 32.5 Hz in a 30 inch trunk wedge, 2.267 cubic feet net\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.27 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 32.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 35.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the Sundown Audio E-Series v.4 15\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.27\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e32.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e35.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e26.4\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 32.5 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe Sundown Audio E-Series v.4 15 is a 31.3 Hz motor with a 0.54 Qts and 85.5 litres of Vas on 750 watts, and the wedge gives it 2.267 cubic feet net vented at 32.5 Hz through a 26.4 square inch port. F3 lands at 35.5 Hz on 1.48 dB of ripple. The cabinet is 30 inches wide, 18.5 tall, 10.125 inches at the top and 16.86 at the base, and the D2 version of this driver shares the same cabinet without any change to the box.\u003c\/p\u003e\n  \u003cp\u003eSundown's own Qes of 0.62 and Qms of 4.32 support the published 0.54 Qts, and 85.5 litres of Vas on a 15 inch motor is real air moved rather than a small sealed box; Sundown publishes no sealed recommendation for this driver, so none is offered here. At 750 watts the channel runs at 19.2 metres per second and the mouth at 12.8, under the 17 where a slot port starts to chuff. Ripple across the passband holds at 1.48 dB, inside the 4.5 dB the gate allows. The port panel needs 8.56 inches of top depth to clear the motor, against 8.01 for the magnet top alone, and that pushes the base to 16.86, over the 16.00 inch target but still under the 18.00 inch cap.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eTrunk-load wedge, explained\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe 20 degree face is the seat side\u003c\/h4\u003e\n\u003cp\u003eA factory rear seat back\n    leans about 20 degrees off vertical. The wedge's raked rear panel matches that lean and tucks\n    against it, so the cabinet uses the triangle of trunk floor a square box wastes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe driver fires rearward\u003c\/h4\u003e\n\u003cp\u003eThe baffle stays vertical and faces\n    the trunk opening. The trunk acts as the acoustic extension into the cabin; nothing about\n    the driver is angled.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e16.86 inches at the base, 10.12 at the top\u003c\/h4\u003e\n\u003cp\u003e30.00 inches wide, 18.5 tall, 16.86 deep at the base tapering to 10.125 at the top, with 2.84 inches of flat floor left in front of the port panel.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e30.00 inches wide\u003c\/h4\u003e\n\u003cp\u003eWidth is the wedge's free dimension and it\n    buys two things at once here: airspace, and port length, because the port runs the full\n    width of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n  \u003cp\u003eThe port is a triangular slot in the bottom-rear corner. The floor and the raked back wall\n  are two of its three sides; the third is a single panel bevelled to sit flush against both.\n  It runs across the cabinet, opens into the box at the far end and exits through the side\n  panel: a straight run with no bend, 22.03 inches of centreline path.\u003c\/p\u003e\n  \u003cp\u003eThe channel is an isosceles triangle with 7.50 inch legs, 26.4 square inches, running at\n  19.2 metres per second at the tuning frequency. The mouth is that same triangle cut through\n  the side panel with its three edges rounded over at 1\/2 inch, so the opening at the face is\n  39.5 square inches and air leaves it at 12.8 metres per second, against the 17.0 metre per\n  second threshold where a slot port starts to chuff. The panel's throat end carries a 3\/8 inch\n  roundover for the same reason.\u003c\/p\u003e\n  \u003cdiv class=\"df-highlight\"\u003e\n    \u003cp\u003e\u003cstrong\u003eThis enclosure ships dry.\u003c\/strong\u003e Polyfill goes in every sealed Proline X cabinet\n    we build. It does not go in this one. Damping material changes the effective volume the\n    port is tuned against, which moves the tuning away from the 32.5 Hz the port was cut for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eRun a subsonic filter\u003c\/h3\u003e\n  \u003cp\u003eBelow tuning the port stops loading the cone and excursion climbs without limit toward DC,\n  so a 26 Hz high-pass at 24 dB per octave is part of the specification. Set it and the same\n  cabinet takes substantially more power for the same cone travel.\u003c\/p\u003e\n  \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, the power at which the\n  cone reaches the end of its linear travel in this box. What the voice coil can dissipate as\n  heat is a separate ceiling set by Sundown Audio.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eCut for this driver, not for a catalogue\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eCut to Sundown Audio's published 13.875 inch cutout through a\n    double-layer 1.5 inch baffle, with a cosmetic front layer routed for the acrylic insert.\n    Threaded inserts at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eClearance\u003c\/h4\u003e\n\u003cp\u003eThe 16.86 inch base is over our 16 inch comfort line, though it stays under the 18 inch limit the wedge allows; the motor's depth, not the magnet, is what pushes it there. Frame, cutout, mounting depth, and displacement are all Sundown's own published numbers, nothing here needed an estimate. The D2 and D4 coils share the same basket and both build in this cabinet without a dimensional change.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eTwo windowed C braces run the cabinet profile at the third points of the width and seat on the port panel; the windows keep the cavity one chamber.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJoinery\u003c\/h4\u003e\n\u003cp\u003eV-groove and dado throughout, 0.75 inch Langboard\n    Elite MDF, the shell folded from one strip with the sides dropped into dados and the port\n    panel seated in dados of its own.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003ePower, wiring and warranty\u003c\/h3\u003e\n  \u003cp\u003eSundown Audio rate the E-Series v.4 15 at 750 W RMS. Terminal cup is side mounted on the side opposite the port\n  mouth. A dual 2 ohm driver wired parallel presents 1 ohm, which many amplifiers are not\n  stable into; series at 4 ohm is the safe default unless yours is rated for it.\u003c\/p\u003e\n  \u003cp\u003ePerformance Optimized carries a 1-year warranty. Built to order in Tullahoma, Tennessee. The\n  driver is not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n  \u003cp\u003eCut, folded and finished for the Sundown Audio E-Series v.4 15. The alignment, the port geometry and the power\n  figures all come from Sundown Audio's published parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44853132525657,"sku":"PO 15-P W E15 BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44853132591193,"sku":"PO 15-P W E15 B","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_E15_Front.jpg?v=1788874453"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-sundown-audio-sa-classic-15","title":"Sundown Audio SA-Classic 15 Ported 15\" Wedge Enclosure | Proline X","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 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14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Performance Optimized Wedge 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eThe SA-Classic 15, vented at 34.0 Hz in a 30 inch trunk wedge, 2.169 cubic feet net\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.17 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 34.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 37.9 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the Sundown Audio SA-Classic 15\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.17\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e34.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e37.9\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e28.2\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 34.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe Sundown Audio SA-Classic 15 is a 36.4 Hz motor with a 0.51 Qts and 67.3 litres of Vas on 1000 watts, and the wedge gives it 2.169 cubic feet net vented at 34.0 Hz through a 28.2 square inch port. F3 lands at 37.9 Hz on 0.59 dB of ripple. The cabinet is 30 inches wide, 18.5 tall, 10.0 inches at the top and 16.73 at the base, and the D2 version of this driver shares the same cabinet without any change to the box.\u003c\/p\u003e\n  \u003cp\u003eSundown's own Qes of 0.62 and Qms of 2.94 support the published 0.51 Qts, and a 98.0 dB motor on 67.3 litres of Vas is built for output on a vented alignment rather than a small sealed box; Sundown publishes no sealed recommendation for this driver, so none is offered here. At 1000 watts the channel runs at 21.5 metres per second and the mouth at 14.5, under the 17 where a slot port starts to chuff. Ripple across the passband holds at 0.59 dB, inside the 4.5 dB the gate allows. The port panel needs 9.25 inches of top depth to clear the motor, against 8.45 for the magnet top alone, and that pushes the base to 16.73, over the 16.00 inch target but still under the 18.00 inch cap.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eTrunk-load wedge, explained\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe 20 degree face is the seat side\u003c\/h4\u003e\n\u003cp\u003eA factory rear seat back\n    leans about 20 degrees off vertical. The wedge's raked rear panel matches that lean and tucks\n    against it, so the cabinet uses the triangle of trunk floor a square box wastes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe driver fires rearward\u003c\/h4\u003e\n\u003cp\u003eThe baffle stays vertical and faces\n    the trunk opening. The trunk acts as the acoustic extension into the cabin; nothing about\n    the driver is angled.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e16.73 inches at the base, 10.00 at the top\u003c\/h4\u003e\n\u003cp\u003e30.00 inches wide, 18.5 tall, 16.73 deep at the base tapering to 10.0 at the top, with 2.26 inches of flat floor left in front of the port panel.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e30.00 inches wide\u003c\/h4\u003e\n\u003cp\u003eWidth is the wedge's free dimension and it\n    buys two things at once here: airspace, and port length, because the port runs the full\n    width of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n  \u003cp\u003eThe port is a triangular slot in the bottom-rear corner. The floor and the raked back wall\n  are two of its three sides; the third is a single panel bevelled to sit flush against both.\n  It runs across the cabinet, opens into the box at the far end and exits through the side\n  panel: a straight run with no bend, 22.50 inches of centreline path.\u003c\/p\u003e\n  \u003cp\u003eThe channel is an isosceles triangle with 7.75 inch legs, 28.2 square inches, running at\n  21.5 metres per second at the tuning frequency. The mouth is that same triangle cut through\n  the side panel with its three edges rounded over at 1\/2 inch, so the opening at the face is\n  41.7 square inches and air leaves it at 14.5 metres per second, against the 17.0 metre per\n  second threshold where a slot port starts to chuff. The panel's throat end carries a 3\/8 inch\n  roundover for the same reason.\u003c\/p\u003e\n  \u003cdiv class=\"df-highlight\"\u003e\n    \u003cp\u003e\u003cstrong\u003eThis enclosure ships dry.\u003c\/strong\u003e Polyfill goes in every sealed Proline X cabinet\n    we build. It does not go in this one. Damping material changes the effective volume the\n    port is tuned against, which moves the tuning away from the 34.0 Hz the port was cut for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eRun a subsonic filter\u003c\/h3\u003e\n  \u003cp\u003eBelow tuning the port stops loading the cone and excursion climbs without limit toward DC,\n  so a 27 Hz high-pass at 24 dB per octave is part of the specification. Set it and the same\n  cabinet takes substantially more power for the same cone travel.\u003c\/p\u003e\n  \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, the power at which the\n  cone reaches the end of its linear travel in this box. What the voice coil can dissipate as\n  heat is a separate ceiling set by Sundown Audio.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eCut for this driver, not for a catalogue\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eCut to Sundown Audio's published 14.000 inch cutout through a\n    double-layer 1.5 inch baffle, with a cosmetic front layer routed for the acrylic insert.\n    Threaded inserts at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eClearance\u003c\/h4\u003e\n\u003cp\u003eThe 16.73 inch base is over our 16 inch comfort line, though it stays under the 18 inch limit the wedge allows; the motor's depth, not the magnet, is what pushes it there. Frame, cutout, mounting depth, and displacement are all Sundown's own published numbers, nothing here needed an estimate. The D2 and D4 coils share the same basket and both build in this cabinet without a dimensional change.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eTwo windowed C braces run the cabinet profile at the third points of the width and seat on the port panel; the windows keep the cavity one chamber.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJoinery\u003c\/h4\u003e\n\u003cp\u003eV-groove and dado throughout, 0.75 inch Langboard\n    Elite MDF, the shell folded from one strip with the sides dropped into dados and the port\n    panel seated in dados of its own.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003ePower, wiring and warranty\u003c\/h3\u003e\n  \u003cp\u003eSundown Audio rate the SA-Classic 15 at 1000 W RMS. Terminal cup is side mounted on the side opposite the port\n  mouth. A dual 2 ohm driver wired parallel presents 1 ohm, which many amplifiers are not\n  stable into; series at 4 ohm is the safe default unless yours is rated for it.\u003c\/p\u003e\n  \u003cp\u003ePerformance Optimized carries a 1-year warranty. Built to order in Tullahoma, Tennessee. The\n  driver is not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n  \u003cp\u003eCut, folded and finished for the Sundown Audio SA-Classic 15. The alignment, the port geometry and the power\n  figures all come from Sundown Audio's published parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44853132623961,"sku":"PO 15-P W SAC15 BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44853132656729,"sku":"PO 15-P W SAC15 B","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_SAC15_Front.jpg?v=1788874462"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-sundown-audio-sa-series-v-2-15","title":"Sundown Audio SA-Series v.2 15 Ported 15\" Wedge Enclosure | Proline X","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap 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0}.df-graph-title{font-size:.78em;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:#a8a29e;margin:0 0 10px}.df-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}.df-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:#a8a29e}.df-sw{width:22px;height:3px;border-radius:2px;display:inline-block}.df-note{background:#292524;border:1px solid #44403c;border-radius:8px;padding:14px 16px;margin-top:10px}.df-note p{margin:0;color:#d6d3d1;font-size:13.5px;line-height:1.6}.df-link{color:#7089ff;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:40px 36px;text-align:center;color:#fff}.df-cta h3{color:#fff;font-size:1.4em;margin:0 0 10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Performance Optimized Wedge 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eThe SA-Series v.2 15, vented at 36.5 Hz in a 27.5 inch trunk wedge, 2.158 cubic feet net\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.16 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 36.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 34.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the Sundown Audio SA-Series v.2 15\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.16\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e36.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e34.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e32.0\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 36.5 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe Sundown Audio SA-Series v.2 15 D2 is a 36.84 Hz motor with a 0.5245 Qts and 51.94 litres of Vas on 1250 watts, and the wedge gives it 2.158 cubic feet net vented at 36.5 Hz through a 32.0 square inch port. F3 lands at 34.5 Hz on 1.18 dB of ripple. The cabinet is 27.5 inches wide, 18.5 tall, 11.125 inches at the top and 17.86 at the base, and the D4 version of this driver shares the same cabinet without any change to the box.\u003c\/p\u003e\n  \u003cp\u003eSundown's own Qes of 0.5847 and Qms of 5.1005 support the published 0.5245 Qts, and a 9.0 inch mounting depth on 51.94 litres of Vas is a deep, high-power motor built to move real air rather than sit in a small sealed box; Sundown publishes no sealed recommendation for this driver, so none is offered here. At 1250 watts the channel runs at 24.5 metres per second and the mouth at 16.9, under the 17 where a slot port starts to chuff. Ripple across the passband holds at 1.18 dB, inside the 4.5 dB the gate allows. The port panel needs 11.06 inches of top depth to clear the motor, against 9.76 for the magnet top alone, and that pushes the base to 17.86, over the 16.00 inch target and close to the 18.00 inch cap.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eTrunk-load wedge, explained\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe 20 degree face is the seat side\u003c\/h4\u003e\n\u003cp\u003eA factory rear seat back\n    leans about 20 degrees off vertical. The wedge's raked rear panel matches that lean and tucks\n    against it, so the cabinet uses the triangle of trunk floor a square box wastes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe driver fires rearward\u003c\/h4\u003e\n\u003cp\u003eThe baffle stays vertical and faces\n    the trunk opening. The trunk acts as the acoustic extension into the cabin; nothing about\n    the driver is angled.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e17.86 inches at the base, 11.12 at the top\u003c\/h4\u003e\n\u003cp\u003e27.50 inches wide, 18.5 tall, 17.86 deep at the base tapering to 11.125 at the top, with 0.03 inch of flat floor left in front of the port panel.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e27.50 inches wide\u003c\/h4\u003e\n\u003cp\u003eWidth is the wedge's free dimension and it\n    buys two things at once here: airspace, and port length, because the port runs the full\n    width of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n  \u003cp\u003eThe port is a triangular slot in the bottom-rear corner. The floor and the raked back wall\n  are two of its three sides; the third is a single panel bevelled to sit flush against both.\n  It runs across the cabinet, opens into the box at the far end and exits through the side\n  panel: a straight run with no bend, 22.01 inches of centreline path.\u003c\/p\u003e\n  \u003cp\u003eThe channel is an isosceles triangle with 8.25 inch legs, 32.0 square inches, running at\n  24.5 metres per second at the tuning frequency. The mouth is that same triangle cut through\n  the side panel with its three edges rounded over at 1\/2 inch, so the opening at the face is\n  46.3 square inches and air leaves it at 16.9 metres per second, against the 17.0 metre per\n  second threshold where a slot port starts to chuff. The panel's throat end carries a 3\/8 inch\n  roundover for the same reason.\u003c\/p\u003e\n  \u003cdiv class=\"df-highlight\"\u003e\n    \u003cp\u003e\u003cstrong\u003eThis enclosure ships dry.\u003c\/strong\u003e Polyfill goes in every sealed Proline X cabinet\n    we build. It does not go in this one. Damping material changes the effective volume the\n    port is tuned against, which moves the tuning away from the 36.5 Hz the port was cut for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eRun a subsonic filter\u003c\/h3\u003e\n  \u003cp\u003eBelow tuning the port stops loading the cone and excursion climbs without limit toward DC,\n  so a 29 Hz high-pass at 24 dB per octave is part of the specification. Set it and the same\n  cabinet takes substantially more power for the same cone travel.\u003c\/p\u003e\n  \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, the power at which the\n  cone reaches the end of its linear travel in this box. What the voice coil can dissipate as\n  heat is a separate ceiling set by Sundown Audio.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eCut for this driver, not for a catalogue\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eCut to Sundown Audio's published 14.010 inch cutout through a\n    double-layer 1.5 inch baffle, with a cosmetic front layer routed for the acrylic insert.\n    Threaded inserts at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eClearance\u003c\/h4\u003e\n\u003cp\u003eThe mouth runs at 16.9 metres per second at 1250 watts, close enough to the 17 metre per second chuff line that a hot amplifier or a long high-power pass could push it over; back the gain off before that happens. The 17.86 inch base is over our 16 inch comfort line and close to the 18 inch limit the wedge allows, set by the motor's depth rather than the magnet. Frame, cutout, mounting depth, and displacement are all Sundown's own published numbers, nothing here needed an estimate. The D2 and D4 coils share the same basket and both build in this cabinet without a dimensional change.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eTwo windowed C braces run the cabinet profile at the third points of the width and seat on the port panel; the windows keep the cavity one chamber.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJoinery\u003c\/h4\u003e\n\u003cp\u003eV-groove and dado throughout, 0.75 inch Langboard\n    Elite MDF, the shell folded from one strip with the sides dropped into dados and the port\n    panel seated in dados of its own.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003ePower, wiring and warranty\u003c\/h3\u003e\n  \u003cp\u003eSundown Audio rate the SA-Series v.2 15 at 1250 W RMS. Terminal cup is side mounted on the side opposite the port\n  mouth. A dual 2 ohm driver wired parallel presents 1 ohm, which many amplifiers are not\n  stable into; series at 4 ohm is the safe default unless yours is rated for it.\u003c\/p\u003e\n  \u003cp\u003ePerformance Optimized carries a 1-year warranty. Built to order in Tullahoma, Tennessee. The\n  driver is not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n  \u003cp\u003eCut, folded and finished for the Sundown Audio SA-Series v.2 15. The alignment, the port geometry and the power\n  figures all come from Sundown Audio's published parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44853132689497,"sku":"PO 15-P W SA15 BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44853132722265,"sku":"PO 15-P W SA15 B","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_SA15_Front.jpg?v=1788874471"},{"product_id":"professional-series-ported-15-enclosure-dd-audio-715f","title":"Professional Series Ported 15\" Enclosure | DD Audio 715f","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:54px 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14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Professional 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eA ported fifteen-inch box built to DD's own numbers for the 715f\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.62 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 34.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 30.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003e2.25\" three-layer baffle\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the 715f\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.62\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e34.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e30.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e53.6\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 34.5 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe DD Audio 715f carries a 9.375 inch mounting depth on a 15.375 inch frame, and this Professional cabinet gives it 2.616 cubic feet net, vented at 34.5 Hz through a 53.6 square inch port. F3 lands at 30.0 Hz with 3.72 dB of passband ripple, the tightest ripple figure of this group, in the 36.0 by 18.0 by 15.5 inch enclosure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e DD Audio does not publish the mounting hole locations for the 715f, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer; one kit serves one woofer.\u003c\/p\u003e\n  \u003cp\u003eDD publishes a Qts of 0.6269 for the 715f, and computing it from their own Qes of 0.6854 and Qms of 7.353 reproduces that figure almost exactly, so the driver's own numbers agree with each other. DD publish no vented recommendation for the 715f, so the 2.616 cubic foot net alignment and 34.5 Hz tuning come from our own solver working Fs, Qts and Vas against the coil's 1500 W rating. At 1800 W, 1.2 times that rating, the port mouth runs 13.5 m\/s, comfortably under the point where a slot starts to chuff, with real margin left in that number.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhat makes it Professional\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThree-layer baffle, flush mount\u003c\/h4\u003e\n\u003cp\u003eThree layers of 3\/4 inch Langboard Elite make a 2.25 inch\n    front. The outer layer is routed to the flange, so the woofer sits flush with the face; the two layers behind it\n    carry the mounting hardware and the load.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eDD Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the DD Audio mark sits in the outer\n    layer beside the woofer. It is standard on every Professional cabinet.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThreaded insert kit ships with this box\u003c\/h4\u003e\n\u003cp\u003eThreaded insert kit included, inserts NOT pre-installed: the manufacturer publishes no mounting hole locations, so the kit ships with the box for installation when the woofer goes in: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, allen key and gasket tape.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePort gated at 1800 W\u003c\/h4\u003e\n\u003cp\u003eThe 53.6 square inch slot beside the woofer is sized so the\n    channel runs 18.7 metres per second and the mouth 13.5 metres per second at 1.2 times the driver's rating, under the\n    17 metres per second where a slot starts to chuff. The channel runs 8.50 inches along its wall and turns once along the back wall for another 19.76 inches, which is why a 34.5 Hz tuning fits a 15.50 inch deep box.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhy this is a Professional build\u003c\/h4\u003e\n\u003cp\u003eEvery driver is run through the Performance Optimized wedge and down-fire before this chassis; the Professional box is where a driver lands when that smaller envelope, 30 inches wide and 18 inches deep with a triangular side port, cannot give it what it needs at its rated power. The 715f did not clear the port gate there. The calmest wedge port that fits that envelope is 30.1 square inches at 27.5 by 11.25 by 17.98 inches, and its mouth runs 18.3 metres per second at 1500 W against the 17 metres per second line where a port starts to chuff. That port would stay clean to about 1300 W. The slot on this box reaches 53.6 square inches and holds the mouth at 13.5 metres per second at 1800 W.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat the price covers\u003c\/h4\u003e\n\u003cp\u003eEvery Professional cabinet is priced the same way, by its size: this one is 5.81 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 69 lb parcel and checkout adds nothing. The Performance Optimized 15 inch ported wedge is $499.99. The $90 difference is the larger box and the port this driver needs to run at its rating.\u003c\/p\u003e\n\u003c\/div\u003e\n    \n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe cabinet\u003c\/h3\u003e\n  \u003cp\u003e36.00\" W x 18.00\" H x 15.50\" D external. Two windowed braces run front to back either side of the woofer, clearing the cutout by two and a half inches. The box ships dry: polyfill detunes a ported alignment. This is our single-fifteen Professional envelope sized for the 715f's 15.375 inch frame and 9.375 inch mounting depth. You source the driver. We handle the box. It ships as a parcel.\u003c\/p\u003e\n  \u003cp\u003eDD does not publish a Bl figure for the 715f, so the motor's force factor cannot be checked against Sd or Xmax independently. DD also publishes no Sd for this driver; the 823.7 cm2 figure used here is derived from their published piston diameter (Sd = pi times the radius squared), and no Mms, Cms, Re, or Xmax basis (geometric or 70 percent BL) is published either. DD Audio does not publish the mounting hole locations for the 715f, so the threaded inserts cannot be pressed into the baffle before it ships; the threaded insert kit ships in the box instead. DD sells the 715f in D2 and D4. The D2 is two 2 ohm coils, 4 ohms in series or 1 ohm in parallel; the D4 is two 4 ohm coils, 8 ohms in series or 2 ohms in parallel. A 1 ohm parallel load needs an amplifier rated for it. DD publishes one Thiele-Small block for the model rather than a set per coil, so the cabinet is the same either way, and DD publishes no DC resistance at all. DD sells the 715f in D2 and D4. The D2 is two 2 ohm coils, 4 ohms in series or 1 ohm in parallel; the D4 is two 4 ohm coils, 8 ohms in series or 2 ohms in parallel. A 1 ohm parallel load needs an amplifier rated for it. DD publishes one Thiele-Small block for the model rather than a set per coil, so the cabinet is the same either way, and DD publishes no DC resistance at all. DD Audio does not publish the mounting hole locations for the 715f, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer; one kit serves one woofer.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe numbers to respect\u003c\/h3\u003e\n  \n  \u003cp\u003eSet a 27 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n  place the cone reaches 11.1 mm of its 22.0 mm at 1800 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44854474309721,"sku":"Pro 15-P 715F","price":589.99,"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_06cdf9ab-5973-4016-b408-38d095594708.jpg?v=1788844077"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-dd-audio-515e","title":"DD Audio 515e Ported 15\" Wedge Enclosure | Proline X","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:54px 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14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Performance Optimized Wedge 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eThe 515e vented at 30.0 Hz in 2.517 cubic feet through a 26.4 sq in port, in a trunk wedge tapering from 17.73 to 11.00 inches deep\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e2.52 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 30.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 32.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the DD Audio 515e\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e2.52\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e30.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e32.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e26.4\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 30.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe 515e is a 29.00 Hz motor with a 0.77 Qts and 93.33 litres of Vas, and the wedge gives it 2.517 cubic feet net vented at 30.0 Hz through a 26.4 square inch port. The cabinet stands 18.5 inches tall and 30.0 inches wide, running 11.00 inches deep at the top and 17.73 at the base. DD publishes no vented recommendation for this model, so the curve stands on its own: a 32.5 Hz F3.\u003c\/p\u003e\n  \u003cp\u003eA 0.77 Qts on 93.33 litres of Vas, backed by a Qes of 0.89 and a Qms of 6.20, is a high-Vas 15 inch motor built to move air, and 30.0 Hz keeps the reach at a 32.5 Hz F3. DD publishes no vented alignment of its own for the 515e, so this build is not weighed against a factory number. The 856.3 square centimetre Sd behind the solve is not a DD figure: DD publishes no Sd for this driver, so it comes from DD's own published piston diameter through Sd = pi times the radius squared. The rear panel carries the wedge's 20 degree rake for the trunk-shaped cabinet; the baffle stays vertical, the port is a triangular chamber run through the side, and the baffle itself is a 1.5 inch double layer.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eTrunk-load wedge, explained\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe 20 degree face is the seat side\u003c\/h4\u003e\n\u003cp\u003eA factory rear seat back\n    leans about 20 degrees off vertical. The wedge's raked rear panel matches that lean and tucks\n    against it, so the cabinet uses the triangle of trunk floor a square box wastes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe driver fires rearward\u003c\/h4\u003e\n\u003cp\u003eThe baffle stays vertical and faces\n    the trunk opening. The trunk acts as the acoustic extension into the cabin; nothing about\n    the driver is angled.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e17.73 inches at the base, 11.00 at the top\u003c\/h4\u003e\n\u003cp\u003e30.0 inches wide, 18.5 tall, 11.00 inches deep at the top and 17.73 at the base, 2.517 cubic feet net. Frame OD 15.020 inches over a 13.890 inch cutout, 7.320 inches of mounting depth and 0.100 cubic feet of driver displacement, all DD's own published figures.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e30.00 inches wide\u003c\/h4\u003e\n\u003cp\u003eWidth is the wedge's free dimension and it\n    buys two things at once here: airspace, and port length, because the port runs the full\n    width of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n  \u003cp\u003eThe port is a triangular slot in the bottom-rear corner. The floor and the raked back wall\n  are two of its three sides; the third is a single panel bevelled to sit flush against both.\n  It runs across the cabinet, opens into the box at the far end and exits through the side\n  panel: a straight run with no bend, 23.36 inches of centreline path.\u003c\/p\u003e\n  \u003cp\u003eThe channel is an isosceles triangle with 7.50 inch legs, 26.4 square inches, running at\n  16.7 metres per second at the tuning frequency. The mouth is that same triangle cut through\n  the side panel with its three edges rounded over at 1\/2 inch, so the opening at the face is\n  39.5 square inches and air leaves it at 11.2 metres per second, against the 17.0 metre per\n  second threshold where a slot port starts to chuff. The panel's throat end carries a 3\/8 inch\n  roundover for the same reason.\u003c\/p\u003e\n  \u003cdiv class=\"df-highlight\"\u003e\n    \u003cp\u003e\u003cstrong\u003eThis enclosure ships dry.\u003c\/strong\u003e Polyfill goes in every sealed Proline X cabinet\n    we build. It does not go in this one. Damping material changes the effective volume the\n    port is tuned against, which moves the tuning away from the 30.0 Hz the port was cut for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eRun a subsonic filter\u003c\/h3\u003e\n  \u003cp\u003eBelow tuning the port stops loading the cone and excursion climbs without limit toward DC,\n  so a 24 Hz high-pass at 24 dB per octave is part of the specification. Set it and the same\n  cabinet takes substantially more power for the same cone travel.\u003c\/p\u003e\n  \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, the power at which the\n  cone reaches the end of its linear travel in this box. What the voice coil can dissipate as\n  heat is a separate ceiling set by DD Audio.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eCut for this driver, not for a catalogue\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eCut to DD Audio's published 13.890 inch cutout through a\n    double-layer 1.5 inch baffle, with a cosmetic front layer routed for the acrylic insert.\n    Threaded inserts at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eClearance\u003c\/h4\u003e\n\u003cp\u003eDD publishes no bolt hole locations for the 515e, so the threaded inserts cannot be pressed into the baffle before the cabinet ships; the insert kit rides in the box instead and goes in at install. DD also publishes no Sd for this driver, so the 856.3 square centimetre figure used here is derived from DD's own published piston diameter, not measured or stated by DD, and DD publishes no Mms, Cms, Re, or Xmax basis either. Mounting depth is 7.320 inches against a 13.890 inch cutout. DD sells the 515e in D2 and D4. The D2 is two 2 ohm coils, 4 ohms in series or 1 ohm in parallel; the D4 is two 4 ohm coils, 8 ohms in series or 2 ohms in parallel. A 1 ohm parallel load needs an amplifier rated for it. DD publishes one Thiele-Small block for the model rather than a set per coil, so the cabinet is the same either way, and DD publishes no DC resistance at all.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eTwo windowed C braces run the cabinet profile at the third points of the width and seat on the port panel; the windows keep the cavity one chamber.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJoinery\u003c\/h4\u003e\n\u003cp\u003eV-groove and dado throughout, 0.75 inch Langboard\n    Elite MDF, the shell folded from one strip with the sides dropped into dados and the port\n    panel seated in dados of its own.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003ePower, wiring and warranty\u003c\/h3\u003e\n  \u003cp\u003eDD Audio rate the 515e at 700 W RMS. Terminal cup is side mounted on the side opposite the port\n  mouth. A dual 2 ohm driver wired parallel presents 1 ohm, which many amplifiers are not\n  stable into; series at 4 ohm is the safe default unless yours is rated for it.\u003c\/p\u003e\n  \u003cp\u003ePerformance Optimized carries a 1-year warranty. Built to order in Tullahoma, Tennessee. The\n  driver is not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n  \u003cp\u003eCut, folded and finished for the DD Audio 515e. The alignment, the port geometry and the power\n  figures all come from DD Audio's published parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44854475292761,"sku":"PO 15-P W 515E BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44854475325529,"sku":"PO 15-P W 515E B","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_515E_Front.jpg?v=1788874701"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-dd-audio-sl715","title":"DD Audio SL715 Ported 15\" Wedge Enclosure | Proline X","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:54px 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10px}.df-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}.df-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:#a8a29e}.df-sw{width:22px;height:3px;border-radius:2px;display:inline-block}.df-note{background:#292524;border:1px solid #44403c;border-radius:8px;padding:14px 16px;margin-top:10px}.df-note p{margin:0;color:#d6d3d1;font-size:13.5px;line-height:1.6}.df-link{color:#7089ff;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:40px 36px;text-align:center;color:#fff}.df-cta h3{color:#fff;font-size:1.4em;margin:0 0 10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Performance Optimized Wedge 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eThe SL715 vented at 33.5 Hz in 1.818 cubic feet through a 27.0 sq in port, in a trunk wedge tapering from 15.11 to 8.38 inches deep\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e1.82 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 33.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 29.9 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the DD Audio SL715\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e1.82\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e33.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e29.9\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e24.7\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 33.5 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe SL715 carries a 0.66 Qts on 54.90 litres of Vas, and this wedge gives it 1.818 cubic feet net vented at 33.5 Hz through a 27.0 square inch port. The cabinet stands 18.5 inches tall and 30.0 inches wide, running 8.38 inches deep at the top and 15.11 at the base. DD publishes no vented recommendation for this model, so the curve stands on its own: a 29.9 Hz F3.\u003c\/p\u003e\n  \u003cp\u003eA 0.66 Qts on 54.90 litres of Vas, backed by a Qes of 0.73 and a Qms of 6.00, is a motor built for a vented box, and 33.5 Hz brings the reach down to a 29.9 Hz F3. The 823.7 square centimetre Sd behind the solve is not a DD figure: DD publishes no Sd for this driver, so it comes from DD's own published piston diameter through Sd = pi times the radius squared. The rear panel carries the wedge's 20 degree rake for the trunk-shaped cabinet; the baffle stays vertical, the port is a triangular chamber run through the side, and the baffle itself is a 1.5 inch double layer.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eTrunk-load wedge, explained\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe 20 degree face is the seat side\u003c\/h4\u003e\n\u003cp\u003eA factory rear seat back\n    leans about 20 degrees off vertical. The wedge's raked rear panel matches that lean and tucks\n    against it, so the cabinet uses the triangle of trunk floor a square box wastes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThe driver fires rearward\u003c\/h4\u003e\n\u003cp\u003eThe baffle stays vertical and faces\n    the trunk opening. The trunk acts as the acoustic extension into the cabin; nothing about\n    the driver is angled.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e15.11 inches at the base, 8.38 at the top\u003c\/h4\u003e\n\u003cp\u003e30.0 inches wide, 18.5 tall, 8.38 inches deep at the top and 15.11 at the base, 1.818 cubic feet net. Frame OD 15.375 inches over a 13.875 inch cutout, 6.750 inches of mounting depth and 0.090 cubic feet of driver displacement, all DD's own published figures.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e30.00 inches wide\u003c\/h4\u003e\n\u003cp\u003eWidth is the wedge's free dimension and it\n    buys two things at once here: airspace, and port length, because the port runs the full\n    width of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n  \u003cp\u003eThe port is a triangular slot in the bottom-rear corner. The floor and the raked back wall\n  are two of its three sides; the third is a single panel bevelled to sit flush against both.\n  It runs across the cabinet, opens into the box at the far end and exits through the side\n  panel: a straight run with no bend, 24.88 inches of centreline path.\u003c\/p\u003e\n  \u003cp\u003eThe channel is an isosceles triangle with 7.25 inch legs, 24.7 square inches, running at\n  23.3 metres per second at the tuning frequency. The mouth is that same triangle cut through\n  the side panel with its three edges rounded over at 1\/2 inch, so the opening at the face is\n  37.4 square inches and air leaves it at 15.4 metres per second, against the 17.0 metre per\n  second threshold where a slot port starts to chuff. The panel's throat end carries a 3\/8 inch\n  roundover for the same reason.\u003c\/p\u003e\n  \u003cdiv class=\"df-highlight\"\u003e\n    \u003cp\u003e\u003cstrong\u003eThis enclosure ships dry.\u003c\/strong\u003e Polyfill goes in every sealed Proline X cabinet\n    we build. It does not go in this one. Damping material changes the effective volume the\n    port is tuned against, which moves the tuning away from the 33.5 Hz the port was cut for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eRun a subsonic filter\u003c\/h3\u003e\n  \u003cp\u003eBelow tuning the port stops loading the cone and excursion climbs without limit toward DC,\n  so a 26 Hz high-pass at 24 dB per octave is part of the specification. Set it and the same\n  cabinet takes substantially more power for the same cone travel.\u003c\/p\u003e\n  \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, the power at which the\n  cone reaches the end of its linear travel in this box. What the voice coil can dissipate as\n  heat is a separate ceiling set by DD Audio.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eCut for this driver, not for a catalogue\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eCut to DD Audio's published 13.875 inch cutout through a\n    double-layer 1.5 inch baffle, with a cosmetic front layer routed for the acrylic insert.\n    Threaded inserts at every mounting location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eClearance\u003c\/h4\u003e\n\u003cp\u003eDD publishes no bolt hole locations for the SL715, so the threaded inserts cannot be pressed into the baffle before the cabinet ships; the insert kit rides in the box instead and goes in at install. DD also publishes no Sd for this driver, so the 823.7 square centimetre figure used here is derived from DD's own published piston diameter, not measured or stated by DD, and DD publishes no Mms, Cms, Re, or Xmax basis either. Mounting depth is 6.750 inches against a 13.875 inch cutout. DD sells the SL715 in D2 and D4. The D2 is two 2 ohm coils, 4 ohms in series or 1 ohm in parallel; the D4 is two 4 ohm coils, 8 ohms in series or 2 ohms in parallel. A 1 ohm parallel load needs an amplifier rated for it. DD publishes one Thiele-Small block for the model rather than a set per coil, so the cabinet is the same either way, and DD publishes no DC resistance at all.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eTwo windowed C braces run the cabinet profile at the third points of the width and seat on the port panel; the windows keep the cavity one chamber.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJoinery\u003c\/h4\u003e\n\u003cp\u003eV-groove and dado throughout, 0.75 inch Langboard\n    Elite MDF, the shell folded from one strip with the sides dropped into dados and the port\n    panel seated in dados of its own.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003ePower, wiring and warranty\u003c\/h3\u003e\n  \u003cp\u003eDD Audio rate the SL715 at 1000 W RMS. Terminal cup is side mounted on the side opposite the port\n  mouth. A dual 2 ohm driver wired parallel presents 1 ohm, which many amplifiers are not\n  stable into; series at 4 ohm is the safe default unless yours is rated for it.\u003c\/p\u003e\n  \u003cp\u003ePerformance Optimized carries a 1-year warranty. Built to order in Tullahoma, Tennessee. The\n  driver is not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-cta\"\u003e\n  \u003cp\u003eCut, folded and finished for the DD Audio SL715. The alignment, the port geometry and the power\n  figures all come from DD Audio's published parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44854475620441,"sku":"PO 15-P W SL715 BB","price":499.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44854475653209,"sku":"PO 15-P W SL715 B","price":479.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_SL715_Front.jpg?v=1788874712"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-dd-audio-9915c","title":"Performance Optimized Wedge Sealed 15\" Enclosure | DD Audio 9915c","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | DD Audio 9915c\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.40 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.82 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.62\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e19.12\" x 18\" x 11.17\/17.72\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThe DD Audio 9915c in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe DD Audio 9915c is rated 3200 watts RMS on a 16.620 inch frame with 10.310 inches of mounting depth. The alignment below is computed from DD Audio's own published Thiele-Small parameters.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.40 cubic feet net, sized for this driver from DD's published Fs, Qts and Vas. In it the 9915c lands at Qtc 0.616, well damped, on the dry side of flat, with system resonance at 52.8 Hz.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e DD Audio publishes no mounting hole locations for this driver, so the threaded inserts are not pressed before it ships. The threaded insert kit comes in the box instead: inserts sized to the woofer, the correct drill bit, allen-head screws, an allen key and woofer gasket tape. You set them when the woofer goes in.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe driver mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\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\u003eVertical baffle, cone firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\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 and the space in front stays usable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the DD Audio 9915c\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 61.8 Hz anechoic, before any cabin gain. DD publishes no Sd for any of its drivers. The 1028.9 square centimetre figure behind this alignment is derived from DD's own published piston diameter, which they define as measured halfway across the surround, the convention Sd itself is defined from. DD publishes no Mms, Cms or DC resistance either.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.616 · fc 52.8 Hz · F3 61.8 Hz anechoic\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 15.190 in. Mounting depth available is 10.810 in against the 10.310 in the driver needs. The cosmetic recess is cut to DD's published 16.620 in frame diameter. DD Audio publishes no mounting hole locations for this driver, so the threaded inserts are not pressed before it ships. The threaded insert kit comes in the box instead: inserts sized to the woofer, the correct drill bit, allen-head screws, an allen key and woofer gasket tape. You set them when the woofer goes in.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWhat the Numbers Rest On\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 in MDF throughout.\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, sides and brace seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDerived Cone Area\u003c\/h4\u003e\n\u003cp\u003eDD publishes no Sd for any of its drivers. The 1028.9 square centimetre figure behind this alignment is derived from DD's own published piston diameter, which they define as measured halfway across the surround, the convention Sd itself is defined from. DD publishes no Mms, Cms or DC resistance either.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the DD Audio 9915c to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eDD sells the 9915c in D1 and D2. the D1 is two 1 ohm coils, 2 ohms in series or 0.5 ohm in parallel; the D2 is two 2 ohm coils, 4 ohms in series or 1 ohm in parallel. DD publishes one set of Thiele-Small parameters for the model rather than a set per coil, so this cabinet is the same either way. A parallel load at or under 1 ohm needs an amplifier rated for it.\u003c\/p\u003e\n\u003cp\u003ePower handling is 3200 watts RMS. Aim for roughly 2240 to 3200 watts at the impedance you wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet, pre-wired terminal cup, 12 gauge OFC to the driver position. 1 year limited warranty. Enclosure only, the driver is purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDD Audio 9915c: Built to a Well-Damped Sealed Alignment\u003c\/h2\u003e\n\u003cp\u003e1.40 cubic feet net at Qtc 0.616, F3 61.8 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44854478504025,"sku":"PO 15-S W 9915C BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44854478569561,"sku":"PO 15-S W 9915C B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_9915C_Front.jpg?v=1788875059"},{"product_id":"professional-series-ported-15-enclosure-ground-zero-gzhw-38","title":"Professional Series Ported 15\" Enclosure | Ground Zero GZHW 38","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:54px 36px;text-align:center;color:#fff}.df-hero h2{font-size:2.3em;font-weight:800;text-transform:uppercase;letter-spacing:1.5px;margin:0 0 12px;color:#fff}.df-hero p{font-size:1.1em;font-weight:300;opacity:.93;margin:0 0 22px;color:#d6d3d1}.df-badges{display:flex;justify-content:center;flex-wrap:wrap;gap:10px}.df-badge{background:rgba(91,120,255,.18);border:1px solid #5b78ff;color:#99abff;padding:7px 16px;border-radius:18px;font-size:.8em;font-weight:600}.df-stats{display:flex;flex-wrap:wrap;background:#1c1917}.df-stat{flex:1 1 200px;text-align:center;padding:26px 16px;border-right:1px solid #292524;border-bottom:1px solid #292524}.df-stat .n{display:block;font-size:1.6em;font-weight:800;color:#7089ff}.df-stat 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10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Professional 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eA ported fifteen-inch Professional box built to the GZHW 38's own Fs, Qts, and Vas, with cone area and displacement estimated because Ground Zero never publishes either\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e3.09 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 34.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 28.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003e2.25\" three-layer baffle\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the GZHW 38\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e3.09\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e34.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e28.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e66.0\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 34.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe GZHW 38 15 inch is a 43.40 Hz motor with a 0.7700 Qts and 22.19 litres of Vas, and this cabinet gives it 2.565 cubic feet net, vented at 34.0 Hz through a 49.5 square inch port. The 36.0 by 18.0 by 15.0 inch enclosure gets F3 down to 28.2 Hz with 2.24 dB of passband ripple, the flattest response of the four Ground Zero Professional builds. Ground Zero publishes no vented recommendation of its own for this driver, so the alignment stands on the published Fs, Qts, and Vas alone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Ground Zero does not publish the mounting hole locations for the GZHW 38, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer; one kit serves one woofer.\u003c\/p\u003e\n  \u003cp\u003eA 0.7700 Qts on 22.19 litres of Vas, backed by a 0.8400 Qes and a 10.0200 Qms, is a compliant motor that wants a large box and a low vent, and 34.0 Hz brings F3 to 28.2 Hz on 2.24 dB of ripple. At the driver's rated 1500 W the port runs 16.3 metres per second through the mouth at 1800 W, the reference point the velocity check is measured against. The 855.3 square centimetre Sd behind this solve is not a Ground Zero figure: Ground Zero publishes no cone area for the GZHW 38, so the number is estimated.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhat makes it Professional\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThree-layer baffle, flush mount\u003c\/h4\u003e\n\u003cp\u003eThree layers of 3\/4 inch Langboard Elite make a 2.25 inch\n    front. The outer layer is routed to the flange, so the woofer sits flush with the face; the two layers behind it\n    carry the mounting hardware and the load.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eGround Zero logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Ground Zero mark sits in the outer\n    layer beside the woofer. It is standard on every Professional cabinet.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThreaded insert kit ships with this box\u003c\/h4\u003e\n\u003cp\u003eThreaded insert kit included, inserts NOT pre-installed: the manufacturer publishes no mounting hole locations, so the kit ships with the box for installation when the woofer goes in: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, allen key and gasket tape.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePort gated at 2400 W\u003c\/h4\u003e\n\u003cp\u003eThe 66.0 square inch slot beside the woofer is sized so the\n    channel runs 22.3 metres per second and the mouth 16.8 metres per second at 1.2 times the driver's rating, under the\n    17 metres per second where a slot starts to chuff. The channel runs 10.25 inches along its wall and turns once along the back wall for another 19.44 inches, which is why a 34.0 Hz tuning fits a 18.00 inch deep box.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhy this is a Professional build\u003c\/h4\u003e\n\u003cp\u003eEvery driver is run through the Performance Optimized wedge and down-fire before this chassis; the Professional box is where a driver lands when that smaller envelope, 30 inches wide and 18 inches deep with a triangular side port, cannot give it what it needs at its rated power. The GZHW 38 did not clear the port gate there. The calmest wedge port that fits that envelope is 32.0 square inches at 26.0 by 11.25 by 17.98 inches, and its mouth runs 23.8 metres per second at 2000 W against the 17 metres per second line where a port starts to chuff. That port would stay clean to about 1024 W. The slot on this box reaches 66.0 square inches and holds the mouth at 16.8 metres per second at 2400 W.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat the price covers\u003c\/h4\u003e\n\u003cp\u003eEvery Professional cabinet is priced the same way, by its size: this one is 6.75 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 74 lb parcel and checkout adds nothing. The Performance Optimized 15 inch ported wedge is $499.99. The $152 difference is the larger box and the port this driver needs to run at its rating.\u003c\/p\u003e\n\u003c\/div\u003e\n    \n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe cabinet\u003c\/h3\u003e\n  \u003cp\u003e36.00\" W x 18.00\" H x 18.00\" D external. Two windowed braces run front to back either side of the woofer, clearing the cutout by two and a half inches. The box ships dry: polyfill detunes a ported alignment. This is our single-fifteen Professional envelope built around the GZHW 38's own frame and motor depth, a 15.350 inch frame over a 14.170 inch cutout and 9.090 inches of mounting depth. Ground Zero lists this driver twice, as the GZHW 38 and the GZHW 38XSPL, and they are one unit; this enclosure is built for it under either name. It ships as a parcel.\u003c\/p\u003e\n  \u003cp\u003eGround Zero publishes no cone area for the GZHW 38: the 855.3 square centimetre Sd behind this alignment, its tuning, port sizing, and velocity math, is estimated, not measured or stated by Ground Zero. Ground Zero also publishes no driver displacement; the 0.223 cubic foot figure used here is estimated too, and it affects only the gross volume figure, not the tuning or port math. Ground Zero publishes no mounting hole locations for the GZHW 38, so the threaded insert kit ships loose in the box rather than pressed into the baffle before the cabinet ships. Ground Zero labels its excursion figure Max. Excursion without stating a basis; the manual gives a peak-to-peak number for this model, halved here to the 22.5 mm one-way figure used in the math, which is why this model builds while other Ground Zero models with no stated basis do not. Ground Zero publishes the same Fs, Qts, Qes, Qms, Vas, Sd, and Xmax for the GZHW 38 and the GZHW 38XSPL, so this cabinet and its sibling XSPL build share identical airspace and tuning. Ground Zero does not publish the mounting hole locations for the GZHW 38, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer; one kit serves one woofer.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe numbers to respect\u003c\/h3\u003e\n  \n  \u003cp\u003eSet a 27 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n  place the cone reaches 11.3 mm of its 22.5 mm at 2400 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44856270520409,"sku":"Pro 15-P GZHW38","price":651.99,"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_ce104855-1cdd-4f48-9907-568d010b71f4.jpg?v=1788885090"},{"product_id":"professional-series-ported-dual-15-enclosure-dd-audio-715f","title":"Professional Series Ported Dual 15\" Enclosure | DD Audio 715f","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:54px 36px;text-align:center;color:#fff}.df-hero h2{font-size:2.3em;font-weight:800;text-transform:uppercase;letter-spacing:1.5px;margin:0 0 12px;color:#fff}.df-hero p{font-size:1.1em;font-weight:300;opacity:.93;margin:0 0 22px;color:#d6d3d1}.df-badges{display:flex;justify-content:center;flex-wrap:wrap;gap:10px}.df-badge{background:rgba(91,120,255,.18);border:1px solid #5b78ff;color:#99abff;padding:7px 16px;border-radius:18px;font-size:.8em;font-weight:600}.df-stats{display:flex;flex-wrap:wrap;background:#1c1917}.df-stat{flex:1 1 200px;text-align:center;padding:26px 16px;border-right:1px solid #292524;border-bottom:1px solid #292524}.df-stat .n{display:block;font-size:1.6em;font-weight:800;color:#7089ff}.df-stat .l{display:block;font-size:.78em;color:#a8a29e;text-transform:uppercase;letter-spacing:.6px;margin-top:5px}.df-section{padding:42px 36px;border-bottom:1px solid #292524;background:#0c0a09}.df-section:nth-of-type(even){background:#1c1917}.df-section h3{color:#fff;font-size:1.45em;font-weight:700;margin:0 0 14px;border-left:4px solid #5b78ff;padding-left:14px}.df-section p{margin:0 0 14px;color:#d6d3d1}.df-section strong{color:#fff}.df-grid{display:flex;flex-wrap:wrap;gap:18px;margin-top:8px}.df-card{flex:1 1 280px;background:#1c1917;border:1px solid #292524;border-top:3px solid #5b78ff;border-radius:8px;padding:20px 22px}.df-card h4{color:#99abff;margin:0 0 8px;font-size:1.04em}.df-card p{margin:0;font-size:.95em;color:#a8a29e}.df-card strong{color:#fff}.df-highlight{background:#001264;border-left:4px solid #5b78ff;border-radius:0 8px 8px 0;padding:18px 22px;margin:18px 0}.df-highlight p{margin:0;color:#d6d3d1}.df-highlight strong{color:#fff}.df-enc{background:#1c1917;color:#d6d3d1;padding:42px 36px;border-bottom:1px solid #292524}.df-enc h3{color:#fff;font-size:1.45em;font-weight:700;margin:0 0 14px;border-left:4px solid #5b78ff;padding-left:14px}.df-enc p{margin:0 0 14px;color:#d6d3d1}.df-enc-card{background:#292524;border:1px solid #44403c;border-radius:8px;overflow:hidden;margin:18px 0}.df-enc-head{padding:12px 16px;font-size:.82em;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:#99abff;background:#001264}.df-enc-table{width:100%;border-collapse:collapse}.df-enc-table th{background:#0c0a09;color:#a8a29e;font-size:.78em;text-transform:uppercase;letter-spacing:.5px;padding:10px 14px;text-align:left;border-bottom:1px solid #44403c}.df-enc-table td{padding:12px 14px;border-bottom:1px solid #292524;color:#d6d3d1;font-size:.95em}.df-enc-table tr:last-child td{border-bottom:none}.df-opt td{background:#14532d;color:#fff;font-weight:600}.df-char{display:block;font-size:.78em;color:#a8a29e;font-weight:400;margin-top:2px}.df-opt .df-char{color:#86efac}.df-graph{background:#0c0a09;border:1px solid #44403c;border-radius:8px;padding:14px;margin:18px 0}.df-graph-title{font-size:.78em;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:#a8a29e;margin:0 0 10px}.df-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}.df-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:#a8a29e}.df-sw{width:22px;height:3px;border-radius:2px;display:inline-block}.df-note{background:#292524;border:1px solid #44403c;border-radius:8px;padding:14px 16px;margin-top:10px}.df-note p{margin:0;color:#d6d3d1;font-size:13.5px;line-height:1.6}.df-link{color:#7089ff;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:40px 36px;text-align:center;color:#fff}.df-cta h3{color:#fff;font-size:1.4em;margin:0 0 10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Professional 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eA ported fifteen inch box for a pair of 715f, one shared chamber vented at 32.0 Hz\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e3.41 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 32.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 33.9 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003e2.25\" three-layer baffle\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the 715f\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e3.41\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e32.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e33.9\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e61.9\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 32.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThis cabinet holds two 715f in 3.408 cubic feet net, vented at 32.0 Hz through a 61.9 square inch port. F3 lands at 33.9 Hz with 2.51 dB of passband ripple. It measures 44.00 inches wide, 18.00 tall and 16.00 deep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e DD Audio does not publish the mounting hole locations for the 715f, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer, and this box ships with two kits, one per woofer.\u003c\/p\u003e\n  \u003cp\u003eBoth drivers share one chamber and one port rather than sitting in separate boxes, so the pair works against the whole volume and the port is sized for the pair rather than doubled. The port carries 61.9 square inches of area at 32.0 Hz, and the design power for the velocity and excursion checks is 3600 W for the pair. Passband ripple holds at 2.51 dB across the tuning, with F3 at 33.9 Hz.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhat makes it Professional\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThree-layer baffle, flush mount\u003c\/h4\u003e\n\u003cp\u003eThree layers of 3\/4 inch Langboard Elite make a 2.25 inch\n    front. The outer layer is routed to the flange, so the woofer sits flush with the face; the two layers behind it\n    carry the mounting hardware and the load.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eDD Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the DD Audio mark sits in the outer\n    layer beside the woofer. It is standard on every Professional cabinet.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThreaded insert kit ships with this box\u003c\/h4\u003e\n\u003cp\u003eThreaded insert kit included, inserts NOT pre-installed: the manufacturer publishes no mounting hole locations, so the kit ships with the box for installation when the woofer goes in: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, allen key and gasket tape.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePort gated at 3600 W\u003c\/h4\u003e\n\u003cp\u003eThe 61.9 square inch slot beside the woofer is sized so the\n    channel runs 22.1 metres per second and the mouth 16.4 metres per second at 1.2 times the driver's rating, under the\n    17 metres per second where a slot starts to chuff. The channel runs 8.50 inches along its wall and turns once along the back wall for another 19.70 inches, which is why a 32.0 Hz tuning fits a 16.00 inch deep box.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhy this is a Professional build\u003c\/h4\u003e\n\u003cp\u003eEvery driver is run through the Performance Optimized wedge and down-fire before this chassis; the Professional box is where a driver lands when that smaller envelope, 30 inches wide and 18 inches deep with a triangular side port, cannot give it what it needs at its rated power. The 715f did not clear the port gate there. The calmest wedge port that fits that envelope is 30.1 square inches at 27.5 by 11.25 by 17.98 inches, and its mouth runs 18.3 metres per second at 1500 W against the 17 metres per second line where a port starts to chuff. That port would stay clean to about 1300 W. The slot on this box reaches 61.9 square inches and holds the mouth at 16.4 metres per second at 3600 W.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat the price covers\u003c\/h4\u003e\n\u003cp\u003eEvery Professional cabinet is priced the same way, by its size: this one is 7.33 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 73 lb parcel and checkout adds nothing. The Performance Optimized 15 inch ported wedge is $499.99. The $194 difference is the larger box and the port this driver needs to run at its rating.\u003c\/p\u003e\n\u003c\/div\u003e\n    \n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe cabinet\u003c\/h3\u003e\n  \u003cp\u003e44.00\" W x 18.00\" H x 16.00\" D external. A windowed brace runs front to back beside the woofer, clearing the cutout by two and a half inches. The box ships dry: polyfill detunes a ported alignment. This is our dual 15 inch Professional envelope, built around the 715f's own frame and mounting depth, with both woofers on one face and the port on the left. It ships as a parcel.\u003c\/p\u003e\n  \u003cp\u003ePort mouth velocity peaks at 16.4 m\/s against the 17 m\/s point where a slot begins to chuff, and 22.1 m\/s in the channel, both measured at the pair's design power. Both drivers must be the same model and the same coil: mixing them puts unequal loads on one shared chamber, and neither driver sees the airspace it was picked for. DD Audio does not publish the mounting hole locations for the 715f, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer, and this box ships with two kits, one per woofer.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe numbers to respect\u003c\/h3\u003e\n  \n  \u003cp\u003eSet a 25 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n  place the cone reaches 10.3 mm of its 22.0 mm at 3600 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44857458131033,"sku":"Pro 15D-P 715F","price":693.99,"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_7750b133-791d-4e11-b10d-d41da979ffe5.jpg?v=1788925292"},{"product_id":"professional-series-ported-dual-15-enclosure-image-dynamics-idmax15-v4","title":"Professional Series Ported Dual 15\" Enclosure | Image Dynamics IDMAX15 V4","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 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10px}.df-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}.df-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:#a8a29e}.df-sw{width:22px;height:3px;border-radius:2px;display:inline-block}.df-note{background:#292524;border:1px solid #44403c;border-radius:8px;padding:14px 16px;margin-top:10px}.df-note p{margin:0;color:#d6d3d1;font-size:13.5px;line-height:1.6}.df-link{color:#7089ff;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:40px 36px;text-align:center;color:#fff}.df-cta h3{color:#fff;font-size:1.4em;margin:0 0 10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Professional 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eA ported fifteen inch box for a pair of IDMAX15 V4, one shared chamber vented at 34.0 Hz\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e5.06 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 34.0 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 31.8 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003e2.25\" three-layer baffle\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the IDMAX15 V4\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e5.06\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e34.0\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e31.8\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e37.1\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 34.0 Hz\u003c\/h3\u003e\n  \u003cp\u003eThis cabinet holds two IDMAX15 V4 in 5.064 cubic feet net, vented at 34.0 Hz through a 37.1 square inch port. F3 lands at 31.8 Hz with 5.78 dB of passband ripple. It measures 44.00 inches wide, 18.00 tall and 17.50 deep.\u003c\/p\u003e\n  \u003cp\u003eBoth drivers share one chamber and one port rather than sitting in separate boxes, so the pair works against the whole volume and the port is sized for the pair rather than doubled. The port carries 37.1 square inches of area at 34.0 Hz, and the design power for the velocity and excursion checks is 1440 W for the pair. Passband ripple holds at 5.78 dB across the tuning, with F3 at 31.8 Hz.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhat makes it Professional\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThree-layer baffle, flush mount\u003c\/h4\u003e\n\u003cp\u003eThree layers of 3\/4 inch Langboard Elite make a 2.25 inch\n    front. The outer layer is routed to the flange, so the woofer sits flush with the face; the two layers behind it\n    carry the mounting hardware and the load.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eImage Dynamics logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Image Dynamics mark sits in the outer\n    layer beside the woofer. It is standard on every Professional cabinet.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eThreaded inserts pressed into the baffle on the published 15.551 inch bolt circle, stainless machine screws included.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePort gated at 1440 W\u003c\/h4\u003e\n\u003cp\u003eThe 37.1 square inch slot beside the woofer is sized so the\n    channel runs 25.0 metres per second and the mouth 16.3 metres per second at 1.2 times the driver's rating, under the\n    17 metres per second where a slot starts to chuff. The channel runs 8.86 inches straight to a 2.48 inch throat gap at the back wall.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhy this is a Professional build\u003c\/h4\u003e\n\u003cp\u003eEvery driver is run through the Performance Optimized wedge and down-fire before this chassis; the Professional box is where a driver lands when that smaller envelope, 30 inches wide and 18 inches deep with a triangular side port, cannot give it what it needs at its rated power. The IDMAX15 V4 did not clear the ripple 5.51 dB over 4.5 gate there: the nearest wedge that fits is 24.5 by 11.25 by 17.98 inches with a 23.0 square inch port, and no tuning, width or depth inside that envelope passes. The slot on this box reaches 37.1 square inches.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat the price covers\u003c\/h4\u003e\n\u003cp\u003eEvery Professional cabinet is priced the same way, by its size: this one is 8.02 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 71 lb parcel and checkout adds nothing. The Performance Optimized 15 inch ported wedge is $499.99. The $241 difference is the larger box and the port this driver needs to run at its rating.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat Image Dynamics recommend\u003c\/h4\u003e\n\u003cp\u003eImage Dynamics publish a vented box for the Image Dynamics IDMAX15 V4 at 2.00 cubic feet gross including the port, tuned to 30.0 Hz. This cabinet holds 5.88 cubic feet gross and tunes to 34.0 Hz. The extra air lowers the low corner rather than raising output at tuning.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe cabinet\u003c\/h3\u003e\n  \u003cp\u003e44.00\" W x 18.00\" H x 17.50\" D external. A windowed brace runs front to back beside the woofer, clearing the cutout by two and a half inches. The box ships dry: polyfill detunes a ported alignment. This is our dual 15 inch Professional envelope, built around the IDMAX15 V4's own frame and mounting depth, with both woofers on one face and the port on the left. It ships as a parcel.\u003c\/p\u003e\n  \u003cp\u003ePort mouth velocity peaks at 16.3 m\/s against the 17 m\/s point where a slot begins to chuff, and 25.0 m\/s in the channel, both measured at the pair's design power. Both drivers must be the same model and the same coil: mixing them puts unequal loads on one shared chamber, and neither driver sees the airspace it was picked for.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe numbers to respect\u003c\/h3\u003e\n  \n  \u003cp\u003eSet a 27 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n  place the cone reaches 7.2 mm of its 22.0 mm at 1440 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44857459900505,"sku":"Pro 15D-P IDMAX","price":740.99,"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_db0606ff-05ef-4a2f-9929-d271452f825c.jpg?v=1788925396"},{"product_id":"professional-series-ported-dual-15-enclosure-sundown-audio-u-series-v-1-15","title":"Professional Series Ported Dual 15\" Enclosure | Sundown Audio U-Series v.1 15","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap 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0}.df-graph-title{font-size:.78em;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:#a8a29e;margin:0 0 10px}.df-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}.df-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:#a8a29e}.df-sw{width:22px;height:3px;border-radius:2px;display:inline-block}.df-note{background:#292524;border:1px solid #44403c;border-radius:8px;padding:14px 16px;margin-top:10px}.df-note p{margin:0;color:#d6d3d1;font-size:13.5px;line-height:1.6}.df-link{color:#7089ff;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:40px 36px;text-align:center;color:#fff}.df-cta h3{color:#fff;font-size:1.4em;margin:0 0 10px;border:none;padding:0}.df-cta p{opacity:.92;margin:0 auto;max-width:640px;color:#d6d3d1}.df-tier{overflow-x:auto;margin:18px 0;border:1px solid #44403c;border-radius:8px}.df-tier table{width:100%;border-collapse:collapse;min-width:660px}.df-tier th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Professional 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eA ported fifteen inch box for a pair of U-Series v.1 15, one shared chamber vented at 29.5 Hz\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e3.06 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 29.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 50.3 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003e2.25\" three-layer baffle\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the U-Series v.1 15\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e3.06\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e29.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e50.3\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e57.8\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 29.5 Hz\u003c\/h3\u003e\n  \u003cp\u003eThis cabinet holds two U-Series v.1 15 in 3.059 cubic feet net, vented at 29.5 Hz through a 57.8 square inch port. F3 lands at 50.3 Hz with 0.21 dB of passband ripple. It measures 44.00 inches wide, 18.00 tall and 16.00 deep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Sundown Audio does not publish the mounting hole locations for the U-Series v.1 15, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer, and this box ships with two kits, one per woofer.\u003c\/p\u003e\n  \u003cp\u003eBoth drivers share one chamber and one port rather than sitting in separate boxes, so the pair works against the whole volume and the port is sized for the pair rather than doubled. The port carries 57.8 square inches of area at 29.5 Hz, and the design power for the velocity and excursion checks is 3000 W for the pair. Passband ripple holds at 0.21 dB across the tuning, with F3 at 50.3 Hz.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhat makes it Professional\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThree-layer baffle, flush mount\u003c\/h4\u003e\n\u003cp\u003eThree layers of 3\/4 inch Langboard Elite make a 2.25 inch\n    front. The outer layer is routed to the flange, so the woofer sits flush with the face; the two layers behind it\n    carry the mounting hardware and the load.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eSundown Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Sundown Audio mark sits in the outer\n    layer beside the woofer. It is standard on every Professional cabinet.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThreaded insert kit ships with this box\u003c\/h4\u003e\n\u003cp\u003eThreaded insert kit included, inserts NOT pre-installed: the manufacturer publishes no mounting hole locations, so the kit ships with the box for installation when the woofer goes in: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, allen key and gasket tape.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePort gated at 3000 W\u003c\/h4\u003e\n\u003cp\u003eThe 57.8 square inch slot beside the woofer is sized so the\n    channel runs 22.8 metres per second and the mouth 16.8 metres per second at the driver's rated power, under the\n    17 metres per second where a slot starts to chuff. The channel runs 8.75 inches along its wall and turns once along the back wall for another 29.23 inches, which is why a 29.5 Hz tuning fits a 16.00 inch deep box.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhy this is a Professional build\u003c\/h4\u003e\n\u003cp\u003eEvery driver is run through the Performance Optimized wedge and down-fire before this chassis; the Professional box is where a driver lands when that smaller envelope, 30 inches wide and 18 inches deep with a triangular side port, cannot give it what it needs at its rated power. The U-Series v.1 15 did not clear the port gate there. The calmest wedge port that fits that envelope is 32.0 square inches at 26.0 by 11.12 by 17.86 inches, and its mouth runs 20.3 metres per second at 1500 W against the 17 metres per second line where a port starts to chuff. That port would stay clean to about 1054 W. The slot on this box reaches 57.8 square inches and holds the mouth at 16.8 metres per second at 3000 W.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat the price covers\u003c\/h4\u003e\n\u003cp\u003eEvery Professional cabinet is priced the same way, by its size: this one is 7.33 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 76 lb parcel and checkout adds nothing. The Performance Optimized 15 inch ported wedge is $499.99. The $194 difference is the larger box and the port this driver needs to run at its rating.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat Sundown Audio recommend\u003c\/h4\u003e\n\u003cp\u003eSundown Audio publish a vented box for the U-Series v.1 15 at 3.00 cubic feet on a basis they do not state, tuned to 35.0 Hz. This cabinet holds 3.06 cubic feet net and tunes to 29.5 Hz. They call for a port area of 48 sq in. The tuning sits lower than theirs, which trades a little output at tuning for reach below it.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe cabinet\u003c\/h3\u003e\n  \u003cp\u003e44.00\" W x 18.00\" H x 16.00\" D external. A windowed brace runs front to back beside the woofer, clearing the cutout by two and a half inches. The box ships dry: polyfill detunes a ported alignment. This is our dual 15 inch Professional envelope, built around the U-Series v.1 15's own frame and mounting depth, with both woofers on one face and the port on the left. It ships as a parcel.\u003c\/p\u003e\n  \u003cp\u003ePort mouth velocity peaks at 16.8 m\/s against the 17 m\/s point where a slot begins to chuff, and 22.8 m\/s in the channel, both measured at the pair's design power. Both drivers must be the same model and the same coil: mixing them puts unequal loads on one shared chamber, and neither driver sees the airspace it was picked for. Sundown Audio does not publish the mounting hole locations for the U-Series v.1 15, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer, and this box ships with two kits, one per woofer.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe numbers to respect\u003c\/h3\u003e\n  \n  \u003cp\u003eSet a 23 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n  place the cone reaches 8.4 mm of its 30.0 mm at 3000 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44857461440601,"sku":"Pro 15D-P U15","price":693.99,"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_c79ea6cc-86fa-4518-886f-a2a85d6f4e61.jpg?v=1788925520"},{"product_id":"performance-optimized-wedge-sealed-dual-15-enclosure-stereo-integrity-sql-15","title":"Performance Optimized Wedge Sealed Dual 15\" Enclosure | Stereo Integrity SQL-15","description":"\u003cdiv class=\"po-wrap\"\u003e\n\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:#fff}\n.po-hero{background:linear-gradient(135deg,#0f172a 0%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-hero .po-title{font-size:2.6em;font-weight:800;text-transform:uppercase;letter-spacing:2px;margin:0 0 10px 0;color:#fff}\n.po-hero .po-subtitle{font-size:1.2em;font-weight:300;opacity:.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(184,115,51,.2);border:1px solid #b87333;color:#d99058;padding:8px 20px;border-radius:20px;font-size:.9em;font-weight:600;letter-spacing:.5px}\n.po-section{padding:50px 40px;border-bottom:1px solid #e2e8f0;background:#fff}\n.po-section:nth-child(even){background:#fef3e7}\n.po-section h2{color:#8b5a2b;font-size:2em;font-weight:700;margin:0 0 20px 0;padding-bottom:12px;border-bottom:3px solid #b87333}\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:#fff;border:1px solid #e2e8f0;border-top:4px solid #b87333;padding:25px;border-radius:4px}\n.po-card h4{color:#8b5a2b;font-size:1.15em;font-weight:700;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:1px}\n.po-card p{font-size:.98em;color:#475569;margin:0}\n.po-highlight{background:#fef3e7;border-left:4px solid #b87333;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%,#8b5a2b 100%);padding:60px 40px;text-align:center;color:#fff}\n.po-cta h2{font-size:2.2em;font-weight:700;margin:0 0 20px 0;color:#fff;border:none;padding:0}\n.po-cta p{font-size:1.15em;opacity:.92;max-width:800px;margin:0 auto 20px auto;color:#fff}\n@media (max-width:768px){.po-hero{padding:40px 20px}.po-hero .po-title{font-size:1.8em}.po-section{padding:30px 20px}.po-section h2{font-size:1.6em}.po-grid{grid-template-columns:1fr}.po-cta{padding:40px 20px}.po-cta h2{font-size:1.6em}}\n\u003c\/style\u003e\n\u003cdiv class=\"po-hero\"\u003e\n\u003cp class=\"po-title\"\u003ePerformance Optimized Wedge | Stereo Integrity SQL-15 Dual\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003eDual 15\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e2.00 ft3 Net Per Chamber\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e4.00 ft3 Net Total\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.82\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eDual Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e37.5\" x 18\" x 13.20\/19.74\"\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eA Pair of Stereo Integrity SQL-15s in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eTwo 3 inch dual voice coil drivers on 20.3 T-m motors, 26 mm of one-way travel each and 1000 watts RMS apiece, on the largest cone Stereo Integrity puts in the SQL line.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003eTwo isolated chambers at 2.00 cubic feet net each, 2.195 cu ft gross before the driver's 0.160 cu ft displacement. Neither woofer loads against the other.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTrunk-Load Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eBoth SQL-15s mount on the vertical trunk-lid-side face and fire rearward into the trunk cavity.\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\u003eAngled face matches the roughly 20 degree factory seat lean.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk-Lid-Side Face Fires the Woofers\u003c\/h4\u003e\n\u003cp\u003eVertical baffle, both cones firing rearward into the trunk cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eIsolated Dual Chambers\u003c\/h4\u003e\n\u003cp\u003eA full 3\/4 in center divider. Each driver sees its own sealed 2.00 cu ft.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTrunk Cavity Loading\u003c\/h4\u003e\n\u003cp\u003eThe trunk acts as an acoustic extension for a smoother presentation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eEngineered for the Stereo Integrity SQL-15\u003c\/h2\u003e\n\u003cp\u003eAt 2.00 cubic feet net per chamber each SQL-15 runs a system Qtc of \u003cstrong\u003e0.816\u003c\/strong\u003e with resonance at 47.2 Hz. That is a well damped alignment. Half power lands at 41.8 Hz anechoic, before any cabin gain.\u003c\/p\u003e\n\u003cp\u003eGoing larger buys almost nothing here. A 3.90 cu ft chamber drops Qtc to 0.707 and moves F3 less than one hertz, so 2.00 is the design point rather than a compromise.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 0.816 · fc 47.2 Hz · F3 41.8 Hz anechoic · computed from Qts 0.57, Vas 59.4 L, Fs 33.0 Hz\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical baffle CNC cut to 14.17 in, two cutouts on 17.875 in centers. Driver mounting depth 7.400 in required. Stereo Integrity does not publish a bolt circle for the SQL-15, so this baffle ships undrilled with a threaded insert kit. The woofer locates its own pattern from the supplied screws, you drill those holes to 13\/64 in and press the hurricane nuts in from the baffle backside. Inserts, screws, screw key and drill bit are all included.\u003c\/p\u003e\n\u003ch3\u003eExternal Dimensions\u003c\/h3\u003e\n\u003cp\u003e37.50 in wide · 18.00 in tall · 13.20 in deep at the top, 19.74 in at the floor\u003c\/p\u003e\n\u003c\/div\u003e\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 in MDF throughout.\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, sides seated in dados.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eDouble-Layer 1.5\" Front Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 in MDF sheets at the driver face, with a dadoed cross brace behind each woofer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eTwo Pre-Wired Terminal Cups\u003c\/h4\u003e\n\u003cp\u003eProline X ABS and carbon fiber composite, side mounted, one per chamber, 12 gauge OFC pre-wired to each driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring a Pair of SQL-15s to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe SQL-15 comes as a dual 2 ohm or a dual 4 ohm. A pair of D2 woofers with each driver in series and the two drivers in parallel lands at \u003cstrong\u003e2 ohms\u003c\/strong\u003e. A pair of D4 the same way lands at 4 ohms, or 1 ohm with all four coils in parallel.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1000 watts RMS per driver, 2000 watts for the pair. Aim for roughly 1400 to 2000 watts at the final wired impedance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h2\u003e\n\u003cp\u003eCut and assembled in Tullahoma, Tennessee on our own CNC equipment. Finished in plush black carpet. 1 year limited warranty. Enclosure only, the Stereo Integrity SQL-15 drivers are purchased separately. Call 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eTwo Stereo Integrity SQL-15s in a Rear-Firing Wedge\u003c\/h2\u003e\n\u003cp\u003e2.00 cubic feet net per chamber at Qtc 0.82, F3 41.8 Hz, cut direct fit and built to order in Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"None","offer_id":44881719722073,"sku":"PO 15D-S W SQL B","price":489.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":44881719754841,"sku":"PO 15D-S W SQL BB","price":509.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15D-S_W_SQL_Front.jpg?v=1789197850"},{"product_id":"performance-optimized-wedge-sealed-dual-15-enclosure-memphis-audio-mojo-pro-15","title":"Performance Optimized Wedge Sealed Dual 15\" Enclosure | Memphis Audio MOJO Pro 15","description":"\u003cdiv 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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 #4a3520 !important;border-top:3px solid #b87333 !important;border-radius:6px;padding:22px;}\n.pow-card-label{display:inline-block;background:#b87333 !important;color:#2a1608 !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:#b87333 !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:#d99058 !important;}\n.pow-table{width:100% !important;border-collapse:collapse;margin:22px 0;font-size:0.94em;}\n.pow-table th{background:#8b5a2b !important;color:#ffffff 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!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 MOJO Pro 15s in a Dual Chamber Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eA sealed wedge cut for a pair of Memphis Audio MOJO Pro 15s, the MJP1544 or the MJP1522. It holds the 3.0 cubic feet gross that Memphis's 2024 MOJO Pro spec sheet prints for a sealed pair, split into two isolated chambers, with the raked back panel against the rear seat and both woofers firing rearward into the trunk.\u003c\/p\u003e\n\u003cdiv class=\"pow-badges\"\u003e\n\u003cspan class=\"pow-badge\"\u003e1.21 CU FT NET PER DRIVER\u003c\/span\u003e\n\u003cspan class=\"pow-badge\"\u003eQTC 1.20, F3 42.4 HZ\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\"\u003e1500W 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\u003eThreaded Insert Kit, Baffle Ships Undrilled\u003c\/h3\u003e\n\u003cp\u003eMemphis Audio does not publish a bolt circle for the MOJO Pro 15, so both cutouts are machined but the mounting holes are not. The threaded insert kit ships in the box for each driver position: inserts, machine screws, a screw key and the drill bit. Set the woofer in its cutout with the supplied screws so the driver locates its own pattern, lift it out, drill those holes to 13\/64 inch and press the hurricane nuts in from the back of the baffle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuy a matched pair.\u003c\/strong\u003e Two drivers of the same model and the same coil, both MJP1544 or both MJP1522.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eThe MOJO Pro 15 in a Purpose-Built Sealed Wedge\u003c\/h3\u003e\n\u003cp\u003eThe MOJO Pro 15 puts a 2.5 inch voice coil on a 120 ounce magnet, with 0.51 inches of one-way linear travel and a 750 watt RMS rating. Memphis builds it in two coils, the \u003cstrong\u003eMJP1544\u003c\/strong\u003e dual 4 ohm and the \u003cstrong\u003eMJP1522\u003c\/strong\u003e dual 2 ohm, and both share the 13.84 inch cutout, the 15.90 inch frame and the 7.88 inch mounting depth this cabinet is cut around.\u003c\/p\u003e\n\u003cp\u003eMemphis's 2024 MOJO Pro sheet prints \u003cstrong\u003e3.0 cubic feet gross\u003c\/strong\u003e for a sealed pair. This cabinet holds 3.00 cubic feet behind its divider, 1.50 per chamber, and after each driver's 0.29 cubic feet of displacement every MOJO Pro 15 works against \u003cstrong\u003e1.21 cubic feet net\u003c\/strong\u003e, 2.42 across the pair.\u003c\/p\u003e\n\u003cdiv class=\"pow-highlight\"\u003e\n\u003ch3\u003eA Compact, High-Q Sealed Box\u003c\/h3\u003e\n\u003cp\u003eIn 1.21 cubic feet the MJP1544's Qts of 0.650 rises to a system Qtc of 1.20, with a 2.4 dB peak near 71 Hz and F3 at 42.4 Hz. It is a tight, punchy alignment that puts its lift in the kick range and keeps the cabinet small. The same driver in 2.50 cubic feet per chamber would run Qtc 0.96 and F3 36.9 Hz, in a box twice the size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eTwo Fully Separate Chambers\u003c\/h3\u003e\n\u003cp\u003eA full 0.75 inch divider splits the cabinet into two sealed chambers of 1.50 cubic feet gross. There is no shared airspace, so one cone's motion never changes the air load the other driver sees under hard excursion, and each driver keeps exactly the 1.21 cubic feet net the alignment below is computed at.\u003c\/p\u003e\n\u003cp\u003eEach chamber has its own side-mounted Proline X terminal cup, pre-wired with 12 gauge OFC to its own driver position. There is no cross-chamber wiring inside the box, so how the pair meets the amplifier is decided at the terminals.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eTrunk-Load Wedge Design Explained\u003c\/h3\u003e\n\u003cdiv class=\"pow-card-grid\"\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eSeat Side\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eRaked Back Panel\u003c\/h4\u003e\n\u003cp\u003eThe back panel leans at 20 degrees to lie against a factory rear seat back, so the cabinet runs \u003cstrong\u003e15.87 inches deep at the floor and 9.32 at the top\u003c\/strong\u003e instead of leaving a wasted triangle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eFiring\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eVertical Baffle, Rearward Output\u003c\/h4\u003e\n\u003cp\u003eBoth woofers sit on the vertical trunk-lid-side face, an 18 inch tall 1.5 inch double baffle, and fire rearward into the trunk cavity.\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\u003eRearward output loads the trunk volume and reaches the cabin through the rear seat and deck. That path is where a trunk-mounted pair gets its weight, and why moving the 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\"\u003eSpace\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eThe Trunk Stays Usable\u003c\/h4\u003e\n\u003cp\u003eThe taper gives the height back where the lid closes, and at 36 inches wide the pair leaves room beside the cabinet on most trunk floors.\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\u003eEngineered for the Memphis Audio MOJO Pro 15\u003c\/h3\u003e\n\u003cp\u003eAt 1.21 cubic feet net per driver the MOJO Pro 15 runs a system Qtc of \u003cstrong\u003e1.20\u003c\/strong\u003e with resonance at 57.7 Hz. Half power lands at \u003cstrong\u003e42.4 Hz anechoic\u003c\/strong\u003e, before any cabin gain. Expect a tight sealed character with a 2.4 dB lift near 71 Hz, carried low in the car by cabin gain.\u003c\/p\u003e\n\u003cdiv class=\"pow-highlight\"\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eQtc 1.202, fc 57.7 Hz, F3 42.4 Hz anechoic, per driver. Computed from the MJP1544 figures Memphis publishes: Fs 31.2 Hz, Qts 0.650, Vas 2.93 cubic feet.\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eVertical 1.5 inch double baffle with a 13.84 inch cutout at each position and a flush recess for the 15.90 inch frame. At 7.88 inches of mounting depth the motor clears the raked back panel by 1.33 inches at the tightest point. The baffle ships undrilled with the threaded insert kit, because Memphis publishes no bolt circle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003ePerformance Series Construction, Driver-Specific Tuning\u003c\/h3\u003e\n\u003cdiv class=\"pow-card-grid\"\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eMDF\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eLangboard Elite 3\/4 Inch\u003c\/h4\u003e\n\u003cp\u003ePremium 3\/4 inch MDF throughout, cut on our own CNC equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eJoinery\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eV-Groove and Dado\u003c\/h4\u003e\n\u003cp\u003eThe shell is one V-grooved strip folded at 90, 70 and 110 degrees, with the sides and the divider seated in \u003cstrong\u003e1\/4 inch dados\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eBaffle\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eDouble-Layer 1.5 Inch Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo bonded 3\/4 inch sheets carry both drivers, with a cosmetic front layer that recesses the frames flush.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pow-card\"\u003e\n\u003cspan class=\"pow-card-label\"\u003eTerminal\u003c\/span\u003e\u003cdiv class=\"pow-card-divider\"\u003e\u003c\/div\u003e\n\u003ch4\u003eTwo Pre-Wired Terminal Cups\u003c\/h4\u003e\n\u003cp\u003eProline X ABS and carbon fiber composite, side mounted, \u003cstrong\u003eone per chamber\u003c\/strong\u003e, 12 gauge OFC to each driver position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section\"\u003e\n\u003ch3\u003eCustomize Your Build\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAcrylic Insert Color.\u003c\/strong\u003e Black is standard: a black acrylic insert on the baffle. Choose None to build the cabinet without it, which takes $20 off. Plush black carpet either way.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-section-alt\"\u003e\n\u003ch3\u003eWiring the MOJO Pro 15 to Your Amplifier\u003c\/h3\u003e\n\u003cp\u003eThe MJP1544 is a dual 4 ohm driver: its two coils give 8 ohms in series or 2 ohms in parallel. The MJP1522 is a dual 2 ohm: 4 ohms in series or 1 ohm in parallel.\u003c\/p\u003e\n\u003cp\u003eEach chamber has its own terminal cup, so the pair can run a monoblock per driver or share one amplifier wired at the terminals. Two MJP1544s give \u003cstrong\u003e4 ohms\u003c\/strong\u003e with each driver in series and the pair in parallel, or 1 ohm with all four coils in parallel. Two MJP1522s give \u003cstrong\u003e2 ohms\u003c\/strong\u003e series-parallel, or 0.5 ohm with everything in parallel.\u003c\/p\u003e\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWatch the low loads.\u003c\/strong\u003e Many amplifiers are not stable at 1 ohm and very few at 0.5. Wire a pair of MJP1544s for 4 ohms and a pair of MJP1522s for 2 ohms unless the amplifier is rated for the lower load.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003ePower handling is 750 watts RMS per driver, so plan on 525 to 750 watts per driver at the final wired impedance. The small sealed chamber holds the cone back hard: it would take \u003cstrong\u003e949 watts\u003c\/strong\u003e to reach the 0.51 inch Xmax, past the rating, so heat is the limit in this box, not travel.\u003c\/p\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 18 inches tall\u003c\/strong\u003e, with the depth running \u003cstrong\u003e15.87 inches at the base and tapering to 9.32 inches at the top\u003c\/strong\u003e. Installed, the raked back panel lies against the rear seat and the vertical baffle faces 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 15.87 inch base depth and the 36 inch width have to clear on the trunk floor. The taper lets the lid close 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\u003ePlan the tie down.\u003c\/strong\u003e The cabinet weighs 55 pounds before the woofers go in. With two 15s fitted it is a two person lift, so anchor it properly before it goes in the vehicle rather than trusting a single strap.\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 Memphis Audio's published parameters for the MJP1544: \u003cstrong\u003eFs 31.2 Hz, Qts 0.650, Vas 2.93 cubic feet\u003c\/strong\u003e. Volumes are net, per driver.\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 style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e1.21 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;\"\u003e1.202\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e57.7 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003e42.4 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#14532d !important;color:#86efac !important;\"\u003e\u003cstrong style=\"color:#86efac !important;\"\u003eMemphis 2024 sealed pair volume. 2.4 dB rise, punchy\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.75 cu ft, larger\u003c\/td\u003e\n\u003ctd\u003e1.063\u003c\/td\u003e\n\u003ctd\u003e51.0 Hz\u003c\/td\u003e\n\u003ctd\u003e39.1 Hz\u003c\/td\u003e\n\u003ctd\u003e1.6 dB rise, a little flatter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.50 cu ft, twice the box\u003c\/td\u003e\n\u003ctd\u003e0.958\u003c\/td\u003e\n\u003ctd\u003e46.0 Hz\u003c\/td\u003e\n\u003ctd\u003e36.9 Hz\u003c\/td\u003e\n\u003ctd\u003e1.0 dB rise, deeper, much larger cabinet\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=\"#4a3520\" stroke-width=\"1\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"210\" y1=\"50\" x2=\"210\" y2=\"350\" stroke=\"#3a2818\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"379\" y1=\"50\" x2=\"379\" y2=\"350\" stroke=\"#3a2818\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"592\" y1=\"50\" x2=\"592\" y2=\"350\" stroke=\"#3a2818\" stroke-width=\"1\"\u003e\u003c\/line\u003e\n\u003cline x1=\"881\" y1=\"50\" x2=\"881\" y2=\"350\" stroke=\"#3a2818\" 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=\"90,350 112,350 134,350 156,350 178,350 200,350 222,335 244,321 266,306 288,291 310,275 332,260 354,245 377,230 399,215 421,200 443,185 465,171 487,157 509,144 531,132 553,121 575,111 597,103 619,97 641,92 663,89 685,87 707,86 729,86 751,86 773,87 795,88 817,90 839,91 861,92 883,94 906,95 928,96 950,98 972,99 994,100 1016,101 1038,102 1060,102 1082,103 1104,104 1126,104 1148,105 1170,105\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,350 112,350 134,350 156,350 178,338 200,324 222,309 244,295 266,280 288,265 310,251 332,236 354,222 377,208 399,194 421,180 443,168 465,155 487,144 509,134 531,125 553,117 575,110 597,105 619,101 641,99 663,97 685,95 707,95 729,95 751,95 773,96 795,96 817,97 839,98 861,99 883,100 906,100 928,101 950,102 972,103 994,103 1016,104 1038,105 1060,105 1082,105 1104,106 1126,106 1148,107 1170,107\" fill=\"none\" stroke=\"#64748b\" stroke-width=\"2.5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"90,350 112,350 134,350 156,350 178,350 200,350 222,350 244,350 266,338 288,323 310,307 332,292 354,276 377,261 399,245 421,229 443,213 465,197 487,181 509,166 531,150 553,136 575,122 597,109 619,99 641,90 663,83 685,78 707,75 729,74 751,74 773,75 795,76 817,78 839,80 861,82 883,85 906,87 928,89 950,91 972,92 994,94 1016,96 1038,97 1060,98 1082,99 1104,100 1126,101 1148,102 1170,103\" fill=\"none\" stroke=\"#c68a4a\" 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=\"#c68a4a\" 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=\"#d99058\" font-family=\"sans-serif\" font-weight=\"700\"\u003eMemphis Audio MOJO Pro 15 (MJP1544), per driver. Anechoic half-space, no cabin gain.\u003c\/text\u003e\n\u003cline x1=\"800\" y1=\"255\" x2=\"850\" y2=\"255\" stroke=\"#c68a4a\" 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\"\u003e1.21 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\"\u003e1.75 cu ft and 2.50 cu ft\u003c\/text\u003e\n\u003c\/svg\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWhat the curves show.\u003c\/strong\u003e Doubling the airspace per driver from 1.21 to 2.50 cubic feet moves F3 5.6 Hz lower and takes the peak from 2.4 dB to 1.0 dB. On this driver a bigger box buys a flatter top end and some extension, at the cost of trunk space.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWhy we built at 1.21.\u003c\/strong\u003e Memphis has published two MOJO Pro sheets. The 2022 sheet, still linked from the MJP1544 product page, prints 2.6 cubic feet gross for one driver sealed and 5.0 for a pair, and that same enclosure block appears word for word on Memphis's M7 and MOJO 15 sheets, which are different drivers. The 2024 MOJO Pro sheet revises the sealed figures to 1.5 and 3.0, and this cabinet is built to the revision.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"pow-alert\"\u003e\u003cp\u003e\u003cstrong\u003eWhat it sounds like in a trunk.\u003c\/strong\u003e These figures are anechoic. In a vehicle, cabin gain lifts the bottom octave regardless of alignment, and a rear-firing trunk mount adds the loading of the trunk itself, so the pair plays deeper in the car than the curve.\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\u003ch3\u003eBuilt in Tennessee, Backed by Audio Intensity\u003c\/h3\u003e\n\u003cp\u003eCut and assembled to order in Tullahoma, Tennessee on our own CNC equipment. Plush black carpet, a light polyfill wall lining and a 1 year limited warranty. Full dimensions 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 MOJO Pro 15. Built in Tennessee.\u003c\/h3\u003e\n\u003cp\u003eEnclosure only. The Memphis Audio MOJO Pro 15 drivers are purchased separately. Questions on fitment or amplifier matching, call 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Black","offer_id":44888763138137,"sku":"PO 15D-S W Mojo Pro BB","price":599.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":44888763236441,"sku":"PO 15D-S W Mojo Pro B","price":579.99,"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_c32b2088-d4d4-4cc0-b461-0a381a7620d9.jpg?v=1789403940"},{"product_id":"professional-series-ported-dual-15-enclosure-memphis-audio-mojo-pro-15","title":"Professional Series Ported Dual 15\" Enclosure | Memphis Audio MOJO Pro 15","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap 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th{background:#0c0a09;color:#a8a29e;font-size:.74em;text-transform:uppercase;letter-spacing:.6px;padding:12px 14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#001264;color:#99abff}.df-tier td{padding:11px 14px;border-bottom:1px solid #292524;color:#a8a29e;font-size:.88em;vertical-align:top;line-height:1.55}.df-tier td.a{color:#d6d3d1;font-weight:700;background:#1c1917;width:19%}.df-tier td.on{background:rgba(91,120,255,.10);color:#d6d3d1}.df-tier tr:last-child td{border-bottom:none}@media(max-width:600px){.df-hero h2{font-size:1.7em}.df-section,.df-enc,.df-cta,.df-hero{padding-left:20px;padding-right:20px}}\u003c\/style\u003e\n\u003cdiv class=\"df-wrap\"\u003e\n\n\u003cdiv class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Professional Dual 15\" Ported\u003c\/h2\u003e\n  \u003cp\u003eA ported fifteen inch box for a pair of MOJO Pro 15s, one shared chamber vented at 31.5 Hz\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e4.66 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 31.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 34.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003e2.25\" three-layer baffle\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the MOJO Pro 15\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e4.66\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e31.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e34.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e57.8\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 31.5 Hz\u003c\/h3\u003e\n  \u003cp\u003eThis cabinet holds two MOJO Pro 15s in 4.66 cubic feet net, vented at 31.5 Hz through a 57.8 square inch port. F3 lands at 34.5 Hz with 2.42 dB of passband ripple. It measures 44.00 inches wide, 18.00 tall and 18.00 deep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Memphis Audio does not publish the mounting hole locations for the MOJO Pro 15, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer, and this box ships with two kits, one per woofer.\u003c\/p\u003e\n  \u003cp\u003eBoth drivers share one chamber and one port rather than sitting in separate boxes, so the pair works against the whole volume and the port is sized for the pair rather than doubled. The port carries 57.8 square inches of area at 31.5 Hz, and the design power for the velocity and excursion checks is 1800 W for the pair. Passband ripple holds at 2.42 dB across the tuning, with F3 at 34.5 Hz.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhat makes it Professional\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThree-layer baffle, flush mount\u003c\/h4\u003e\n\u003cp\u003eThree layers of 3\/4 inch Langboard Elite make a 2.25 inch\n    front. The outer layer is routed to the flange, so the woofer sits flush with the face; the two layers behind it\n    carry the mounting hardware and the load.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMemphis Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Memphis Audio mark sits in the outer\n    layer beside the woofer. It is standard on every Professional cabinet.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThreaded insert kit ships with this box\u003c\/h4\u003e\n\u003cp\u003eThreaded insert kit included, inserts NOT pre-installed: the manufacturer publishes no mounting hole locations, so the kit ships with the box for installation when the woofer goes in: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, allen key and gasket tape.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePort gated at 1800 W\u003c\/h4\u003e\n\u003cp\u003eThe 57.8 square inch slot beside the woofer is sized so the\n    channel runs 18.7 metres per second and the mouth 13.7 metres per second at 1.2 times the driver's rating, under the\n    17 metres per second where a slot starts to chuff. The channel runs 10.75 inches along its wall and turns once along the back wall for another 5.13 inches, which is why a 31.5 Hz tuning fits an 18.00 inch deep box.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhy this is a Professional build\u003c\/h4\u003e\n\u003cp\u003eEvery driver is tried in the Performance Optimized ported wedge and down-fire before this chassis, and both of those hold one driver. A pair of MOJO Pro 15s sharing one vented chamber needs the Professional envelope, and this box has the width, depth and port to carry both.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat the price covers\u003c\/h4\u003e\n\u003cp\u003eEvery Professional cabinet is priced the same way, by its size: this one is 8.25 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a parcel and checkout adds nothing.\u003c\/p\u003e\n\u003c\/div\u003e\n    \n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe cabinet\u003c\/h3\u003e\n  \u003cp\u003e44.00\" W x 18.00\" H x 18.00\" D external. A windowed brace runs front to back beside the woofer, clearing the cutout by two and a half inches. The box ships dry: polyfill detunes a ported alignment. This is our dual 15 inch Professional envelope, built around the MOJO Pro 15's own frame and mounting depth, with both woofers on one face and the port on the left. It ships as a parcel.\u003c\/p\u003e\n  \u003cp\u003ePort mouth velocity peaks at 13.7 m\/s against the 17 m\/s point where a slot begins to chuff, and 18.7 m\/s in the channel, both measured at the pair's design power. Both drivers must be the same model and the same coil: mixing them puts unequal loads on one shared chamber, and neither driver sees the airspace it was picked for. Memphis Audio does not publish the mounting hole locations for the MOJO Pro 15, so we cannot install the threaded inserts before it ships. The threaded insert kit comes in the box instead: inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, an allen key and woofer gasket tape. You set the inserts when you mount the woofer, and this box ships with two kits, one per woofer.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe numbers to respect\u003c\/h3\u003e\n  \n  \u003cp\u003eSet a 25 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n  place the cone reaches 8.3 mm of its 13.0 mm at 1800 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44888768512089,"sku":"Pro 15D-P Mojo Pro","price":899.99,"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_52411f83-cd67-41d4-953c-6fecc28fb6db.jpg?v=1789404311"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/collections\/15_inch_Subwoofer_Boxes.jpg?v=1788047021","url":"https:\/\/audiointensity.com\/collections\/15-inch-subwoofer-box.oembed?page=3","provider":"Audio Intensity","version":"1.0","type":"link"}