{"product_id":"proline-x-p10d-s-dual-10-sealed-subwoofer-enclosure-v3","title":"Proline X Performance P10D-S Sealed Enclosure for Dual 10\" Subwoofers","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 P10D-S\u003c\/p\u003e\n\u003cp class=\"px-subtitle\"\u003eDual 10\" Sealed Subwoofer Enclosure | V3\u003c\/p\u003e\n\u003cdiv class=\"px-badges\"\u003e\n\u003cspan class=\"px-badge\"\u003e1.5 ft³ Net\u003c\/span\u003e \u003cspan class=\"px-badge\"\u003eSealed Alignment\u003c\/span\u003e \u003cspan class=\"px-badge\"\u003eShared Air Space\u003c\/span\u003e \u003cspan class=\"px-badge\"\u003e6.5\" Max Depth\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\u003eTwo 10\" Drivers. One Sealed Enclosure. Accurate Bass Across a Wide Soundstage.\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eProline X P10D-S\u003c\/strong\u003e is a dual 10\" sealed enclosure built for installs that need the output and soundstage width of two drivers without the depth requirement of a larger single-driver ported box. At \u003cstrong\u003e1.5 ft³ net\u003c\/strong\u003e in a shared air space with heavy internal bracing, and sealed alignment, this enclosure delivers controlled, accurate bass across a wider presentation than any single 10\" can produce. Two drivers in sealed alignment produce a more even low-frequency field across the vehicle cabin, a wider perceived soundstage, and combined cone area that approaches a single 15\" driver.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e28\" wide, 12.5\" tall, and 10.75\" deep\u003c\/strong\u003e, the P10D-S fits across most trunk floors and behind most rear seats in full-size sedans and trucks without requiring custom mounting. The \u003cstrong\u003e6.5\" max mounting depth\u003c\/strong\u003e covers the majority of standard 10\" drivers. Both drivers share a single terminal cup — both must be run at the same impedance.\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. Finish options are Dark Gray Trunkliner or Plush Black. Shipping is included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Why Dual Sealed --\u003e\n\u003cdiv class=\"px-section\"\u003e\n\u003ch2\u003eWhy Dual 10\" Sealed\u003c\/h2\u003e\n\u003cp\u003eTwo 10\" drivers in sealed alignment produce a fundamentally different bass presentation than a single driver of any size. The combined cone area approaches a single 15\", but the individual driver mass stays low — each 10\" maintains the transient speed and articulation that the format is known for. The sealed alignment preserves that precision while the dual configuration adds output, soundstage width, and bass presence that a single 10\" sealed cannot match.\u003c\/p\u003e\n\u003cp\u003eThe shared 1.5 ft³ air space with heavy internal bracing provides both drivers with a larger effective acoustic load than two individual 0.75 ft³ separated chambers would — the drivers interact with a combined air mass that produces a more cohesive low-frequency response across the full 28\" baffle width.\u003c\/p\u003e\n\u003cdiv class=\"px-grid\"\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eCombined Cone Area\u003c\/h4\u003e\n\u003cp\u003eTwo 10\" drivers produce combined cone area approaching a single 15\" while maintaining the low moving mass and transient speed that the 10\" format delivers. More output than a single 10\" at any power level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eWider Bass Presentation\u003c\/h4\u003e\n\u003cp\u003eTwo drivers spaced across a 28\" baffle produce a wider, more even low-frequency field across the vehicle cabin than any single point source. Bass is more evenly distributed from driver seat to passenger seat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eCompact Depth Profile\u003c\/h4\u003e\n\u003cp\u003eAt 10.75\" deep, the P10D-S fits across most trunk floors and behind most rear seats in full-size vehicles without the depth commitment of a single 10\" ported enclosure or a dual 10\" ported build.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eShared Air Space — Cohesive Response\u003c\/h4\u003e\n\u003cp\u003eThe shared 1.5 ft³ interior with heavy internal bracing provides a larger effective acoustic load per driver than separated chambers would. Both drivers work the same air mass for a more cohesive low-frequency response.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Construction --\u003e\n\u003cdiv class=\"px-section\" style=\"text-align: start;\"\u003e\n\u003ch2\u003eConstruction: Shared Air Space, Heavy Bracing, Single Terminal Cup\u003c\/h2\u003e\n\u003cp\u003eThe P10D-S uses the same Langboard Elite MDF and V-groove and dado joinery construction as every enclosure in the Proline X Performance Series. The interior is a single shared air space with heavy strategic bracing throughout — not two separated chambers. A single terminal cup handles both drivers internally.\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\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/P12D-S_III_Pre_Assembly.jpg?v=1742876131\" alt=\"Pre Assembly showing dados and vcuts\" style=\"margin-bottom: 20px; float: none;\"\u003e\u003c\/p\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. On an enclosure spanning 28\" wide, panel rigidity and joint integrity are critical — the side panels span a distance that creates flex potential under bass pressure without proper joinery. Every joint on the P10D-S is mechanically locked before adhesive is applied.\u003c\/p\u003e\n\u003ch3\u003eSingle Terminal Cup — Same Impedance Required\u003c\/h3\u003e\n\u003cp\u003eThe P10D-S uses a single \u003cstrong\u003eABS\/Carbon Fiber Composite recessed terminal cup\u003c\/strong\u003e built in-house at our Tennessee facility. Both drivers are wired internally to the cup with stainless steel hardware, aluminum landing plates, and copper ring terminals, pre-wired with \u003cstrong\u003e12g OFC speaker wire\u003c\/strong\u003e. Both drivers must be run at the same impedance — confirm your amplifier output and driver impedances match before wiring.\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. Both driver cutouts are machined to identical diameter and position across the 28\" baffle. Consistent geometry across every unit.\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.\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. 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 P10D-S spans \u003cstrong\u003e28\" wide\u003c\/strong\u003e and sits at only \u003cstrong\u003e10.75\" deep\u003c\/strong\u003e — a compact depth profile for a dual 10\" enclosure. It fits across most trunk floors and behind most rear seats in full-size sedans and trucks without requiring custom mounting solutions.\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 28\" W x 12.5\" H x 10.75\" D\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNet Internal Volume:\u003c\/strong\u003e 1.5 ft³ — shared air space, heavily braced\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 9.25\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMax Mounting Depth:\u003c\/strong\u003e 6.5\"\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 P10D-S accommodates any 10\" subwoofer with a cutout diameter at or below \u003cstrong\u003e9.25\"\u003c\/strong\u003e and a mounting depth at or below \u003cstrong\u003e6.5\"\u003c\/strong\u003e. Both drivers must be the same model and impedance. Verify 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 P10D-S:\u003c\/p\u003e\n\u003ca href=\"https:\/\/audiointensity.com\/products\/prodigy-audio-10-inch-subwoofer-nb2-series\" class=\"px-driver-link\"\u003eProdigy NB2-10D4 →\u003c\/a\u003e \u003ca href=\"https:\/\/audiointensity.com\/products\/image-dynamics-id10-v4-10-inch-subwoofer\" class=\"px-driver-link\"\u003eImage Dynamics ID10 V4 →\u003c\/a\u003e \u003ca href=\"https:\/\/audiointensity.com\/products\/prodigy-audio-10-inch-subwoofer-nb3-series\" class=\"px-driver-link\"\u003eProdigy NB3-10D4 →\u003c\/a\u003e \u003ca href=\"https:\/\/audiointensity.com\/products\/audiomobile-gt2-2010-10-subwoofer-single\" class=\"px-driver-link\"\u003eAudiomobile GT2 2010 →\u003c\/a\u003e \u003ca href=\"https:\/\/audiointensity.com\/products\/prodigy-audio-1000-watt-10-inch-subwoofer-nb5-series\" class=\"px-driver-link\"\u003eProdigy NB5-10D4 →\u003c\/a\u003e \u003ca href=\"https:\/\/audiointensity.com\/products\/crescendo-revolution-710-10-inch-subwoofer\" class=\"px-driver-link\"\u003eCrescendo Revolution 710 →\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. Both drivers must be run at the same impedance.\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\u003eTrunk Floor Build\u003c\/h4\u003e\n\u003cp\u003eAt 28\" wide and 10.75\" deep, the P10D-S spans most full-size trunk floors without the depth commitment of a single ported enclosure. A compact dual 10\" sealed profile that fits where ported builds cannot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eBehind Rear Seat\u003c\/h4\u003e\n\u003cp\u003eThe 10.75\" depth makes the P10D-S one of the few dual 10\" enclosures viable for behind-seat installations in full-size trucks and sedans. Measure available depth 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\u003eTwo sealed 10\" drivers produce the wide, even bass presentation and combined output that SQ competition builds demand — with the flat sealed response that DSP-controlled systems can tune precisely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"px-card\"\u003e\n\u003ch4\u003eStep Up From Single 10\" Sealed\u003c\/h4\u003e\n\u003cp\u003eFor builds running the P10-S that need more output and wider bass presentation without switching to a ported alignment — the P10D-S is the direct step up. Same driver compatibility, significantly more output.\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\u003eDual 10\" Accuracy. Compact Depth. Tennessee-Built.\u003c\/h2\u003e\n\u003cp\u003eThe Proline X P10D-S delivers dual 10\" sealed performance in a 10.75\" deep enclosure that fits where larger boxes cannot. Langboard Elite MDF. V-groove and dado joinery. Heavy internal bracing. In-house terminal cup. Hand-assembled in Tennessee and inspected before it ships.\u003c\/p\u003e\n\u003cp\u003eTwo drivers. Sealed accuracy. Combined output approaching a single 15\" — in a compact trunk floor footprint. \u003cstrong\u003e$199.99 Dark Gray Trunkliner. $209.99 Plush Black.\u003c\/strong\u003e Shipping included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Grey Trunk liner","offer_id":42363333443673,"sku":"P10D-S III-G","price":199.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black","offer_id":42363333410905,"sku":"P10D-S III-B","price":209.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-performance-p10d-s-sealed-enclosure-for-dual-10-subwooferssubwoofer-enclosuresproline-x-179177.jpg?v=1761969144","url":"https:\/\/audiointensity.com\/products\/proline-x-p10d-s-dual-10-sealed-subwoofer-enclosure-v3","provider":"Audio Intensity","version":"1.0","type":"link"}