{"product_id":"proline-x-performance-wedge-p12-wds-iii-sealed-enclosure-for-dual-12-subwoofers","title":"Proline X Performance Wedge P12-WDS III Sealed Enclosure for Dual 12\" Subwoofers","description":"\u003cstyle\u003e\n  .ps-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.8; color: #1e293b; max-width: 1200px; margin: 0 auto; background: #ffffff; }\n  .ps-hero { background: linear-gradient(135deg, #0f172a 0%, #0e7490 100%); padding: 60px 40px; text-align: center; color: white; }\n  .ps-hero .ps-title { font-size: 2.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin: 0 0 10px 0; color: white; }\n  .ps-hero .ps-subtitle { font-size: 1.2em; font-weight: 300; opacity: 0.9; margin: 0 0 20px 0; color: white; }\n  .ps-hero .ps-meta { font-size: 0.95em; color: #67e8f9; margin: 0; letter-spacing: 1px; }\n  .ps-section { padding: 50px 40px; border-bottom: 1px solid #e2e8f0; background: #ffffff; }\n  .ps-section-alt { background: #ecfeff; }\n  .ps-section h2 { color: #155e75; font-size: 2em; font-weight: 700; margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 3px solid #06b6d4; }\n  .ps-section h3 { color: #0f172a; font-size: 1.4em; font-weight: 600; margin: 30px 0 15px 0; }\n  .ps-section p { font-size: 1.05em; margin: 0 0 18px 0; color: #334155; }\n  .ps-section strong { color: #0f172a; font-weight: 700; }\n  .ps-mdf-table { width: 100%; border-collapse: collapse; margin: 25px 0; background: #0f172a; color: #e2e8f0; border-radius: 8px; overflow: hidden; }\n  .ps-mdf-table td { padding: 14px 18px; border-bottom: 1px solid #1e293b; vertical-align: top; }\n  .ps-mdf-table tr:nth-child(even) { background: #0a1120; }\n  .ps-mdf-table tr:last-child td { border-bottom: none; }\n  .ps-mdf-table td:first-child { color: #06b6d4; font-weight: 700; white-space: nowrap; width: 25%; }\n  .ps-mdf-table td:nth-child(2) { color: white; font-weight: 700; width: 20%; }\n  .ps-mdf-table td:nth-child(3) { color: #cbd5e1; font-size: 0.95em; }\n\u003c\/style\u003e\n\u003cdiv class=\"ps-wrap\"\u003e\n\u003cdiv class=\"ps-hero\"\u003e\n\u003ch2 class=\"ps-title\"\u003eProline X P12-WDS III\u003c\/h2\u003e\n\u003cp class=\"ps-subtitle\"\u003eDual 12\" Wedge Sealed Enclosure | V3\u003c\/p\u003e\n\u003cp class=\"ps-subtitle\"\u003eEnclosure Only!\u003c\/p\u003e\n\u003cp class=\"ps-meta\"\u003e2.0 ft³ Net | Common Sealed Chamber | Wedge Profile | 8.5\" Max Depth | Langboard Elite MDF | Built in Tennessee\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ps-section\"\u003e\n\u003ch2\u003eTwo 12\" Drivers. Wedge Geometry. Common Sealed Chamber.\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eProline X P12-WDS III\u003c\/strong\u003e is the third-generation dual 12\" sealed wedge enclosure, built for installs where two drivers are required and trunk space is still a constraint. At \u003cstrong\u003e2.0 ft³ net sealed\u003c\/strong\u003e in a common chamber with a tapered profile that hugs the rear seat contour, this enclosure delivers the combined output of a dual 12\" system in a footprint that reclaims inches of upper trunk space compared to a rectangular alternative.\u003c\/p\u003e\n\u003cp\u003eThe wedge tapers from \u003cstrong\u003e13.75\" deep at the bottom to 8.5\" deep at the top\u003c\/strong\u003e, matching the natural recline angle of most modern rear seats. Position the shallow edge against the seatback and the deep edge on the trunk floor — the enclosure nestles flush against the seat naturally, eliminating the wasted triangular void that forms behind a rectangular enclosure. The \u003cstrong\u003e28\" width\u003c\/strong\u003e accommodates both drivers at correct baffle spacing. \u003cstrong\u003eInternal bracing\u003c\/strong\u003e runs throughout the common chamber to control panel resonance across the full enclosure width.\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. Available in \u003cstrong\u003eDark Gray Trunkliner\u003c\/strong\u003e at $229.99 or \u003cstrong\u003ePlush Black\u003c\/strong\u003e at $239.99. Shipping is included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ps-section ps-section-alt\"\u003e\n\u003ch2\u003eWhy Wedge Geometry\u003c\/h2\u003e\n\u003ch3\u003eThe Problem With Rectangular Enclosures\u003c\/h3\u003e\n\u003cp\u003eModern sedan and coupe rear seats recline at 20 to 30 degrees from vertical. When a rectangular enclosure is placed against that angled surface, the bottom edge sits flush against the seat while the top edge extends straight up into the trunk, leaving a triangular air gap behind the enclosure that serves no acoustic purpose. That wasted space typically measures 2 to 4 inches at the top edge — and at 28\" wide, a dual driver rectangular enclosure wastes significantly more of your trunk than a single driver alternative.\u003c\/p\u003e\n\u003ch3\u003eThe Solution\u003c\/h3\u003e\n\u003cp\u003eThe P12-WDS III's back panel angles at approximately 20 degrees, closely matching typical rear seat recline. Position the shallow edge (8.5\") against the seatback and the deep edge (13.75\") on the trunk floor — the enclosure fills the available space correctly with no wasted void behind it. The full \u003cstrong\u003e2.0 ft³ internal airspace\u003c\/strong\u003e is preserved through optimized width and height dimensions. No acoustic compromise. Space savings only.\u003c\/p\u003e\n\u003ch3\u003eWhere The Wedge Pays Off\u003c\/h3\u003e\n\u003cp\u003eFull-size sedans running dual 12\" drivers where trunk depth is the limiting factor. Coupes and sports cars with aggressive seat recline angles and enough trunk width for a 28\" enclosure. Any dual driver install where the rectangular alternative consumes too much of the upper trunk space. The wedge format is the correct solution when you need two drivers and you still need to use your trunk.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ps-section\"\u003e\n\u003ch2\u003eConstruction: Langboard Elite MDF, V-Groove And Dado Joinery\u003c\/h2\u003e\n\u003ch3\u003eLangboard Elite MDF, Named And Mill-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\u003ctable class=\"ps-mdf-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003e48.5 lbs\/ft³\u003c\/td\u003e\n\u003ctd\u003eHigher density means less porosity, better screw retention, reduced resonance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Bond\u003c\/td\u003e\n\u003ctd\u003e200 psi\u003c\/td\u003e\n\u003ctd\u003eResistance to delamination under sustained bass pressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModulus of Elasticity\u003c\/td\u003e\n\u003ctd\u003e410,000 psi\u003c\/td\u003e\n\u003ctd\u003ePanel stiffness under load; less flex means less resonance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFace Screw Holding\u003c\/td\u003e\n\u003ctd\u003e325 lbs\u003c\/td\u003e\n\u003ctd\u003eBaffle hardware stays locked under vibration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEdge Screw Holding\u003c\/td\u003e\n\u003ctd\u003e250 lbs\u003c\/td\u003e\n\u003ctd\u003eJoint integrity at every panel edge connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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. The angled back panel on a wedge enclosure presents joint geometry that simple butt joints cannot handle reliably over time. V-groove and dado joinery provides the mechanical interlocking and increased glue surface area that keeps angled joints airtight under bass pressure cycling.\u003c\/p\u003e\n\u003ch3\u003eInternal Bracing\u003c\/h3\u003e\n\u003cp\u003eAt 28\" wide, the P12-WDS III has significant unsupported panel spans. \u003cstrong\u003eInternal bracing runs throughout the common chamber\u003c\/strong\u003e to control panel resonance independently of joinery. Every structural flex point is addressed before it becomes an acoustic problem — the result is an enclosure that stays rigid and acoustically inert under sustained output from two drivers.\u003c\/p\u003e\n\u003ch3\u003eProline X Terminal Cup\u003c\/h3\u003e\n\u003cp\u003eBuilt in-house at our Tennessee facility. \u003cstrong\u003eProline X ABS\/carbon fiber terminal cup with stainless hardware and copper ring terminals\u003c\/strong\u003e, pre-wired 12g OFC speaker wire. Recessed mount keeps the cup protected from cargo contact.\u003c\/p\u003e\n\u003ch3\u003eHand-Assembled In Tennessee\u003c\/h3\u003e\n\u003cp\u003eEvery enclosure is CNC-cut on ShopSabre industrial routers and hand-assembled at our facility in Tullahoma, Tennessee. Inspected before it ships. No overseas manufacturing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ps-section ps-section-alt\"\u003e\n\u003ch2\u003eFitment Guide\u003c\/h2\u003e\n\u003ch3\u003eDimensional Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eExternal Dimensions:\u003c\/strong\u003e 28\" W x 14.5\" H x 8.5\" D (top) \/ 13.75\" D (bottom)\u003cbr\u003e\u003cstrong\u003eNet Internal Volume:\u003c\/strong\u003e 2.0 ft³ — common chamber\u003cbr\u003e\u003cstrong\u003eAlignment:\u003c\/strong\u003e Sealed\u003cbr\u003e\u003cstrong\u003eSubwoofer Cutout:\u003c\/strong\u003e 11.13\" x2\u003cbr\u003e\u003cstrong\u003eMax Mounting Depth:\u003c\/strong\u003e 8.5\"\u003cbr\u003e\u003cstrong\u003eFront Panel Thickness:\u003c\/strong\u003e 0.75\" Single Baffle\u003c\/p\u003e\n\u003ch3\u003eDriver Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe P12-WDS III accommodates any 12\" subwoofer with a cutout diameter at or below \u003cstrong\u003e11.13\"\u003c\/strong\u003e and a mounting depth at or below \u003cstrong\u003e8.5\"\u003c\/strong\u003e. Both drivers share a common \u003cstrong\u003e2.0 ft³ sealed chamber\u003c\/strong\u003e. Verify published driver specs before ordering. If you need help confirming compatibility with a specific driver, contact us before purchasing.\u003c\/p\u003e\n\u003ch3\u003eInstallation Orientation\u003c\/h3\u003e\n\u003cp\u003ePosition the \u003cstrong\u003eshallow edge (8.5\") against the rear seat\u003c\/strong\u003e, with the \u003cstrong\u003edeep edge (13.75\") on the trunk floor\u003c\/strong\u003e. This is the orientation that produces the space-saving benefit — the taper follows the angle of the rear seatback, eliminating the triangular void that forms behind a rectangular enclosure. Installing with the deep edge against the seat defeats the purpose of the wedge geometry entirely. Verify orientation before final installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ps-section\"\u003e\n\u003ch2\u003eDual 12\" Sealed. Wedge Geometry. Tennessee-Built.\u003c\/h2\u003e\n\u003cp\u003eThe Proline X P12-WDS III delivers dual 12\" sealed alignment in a \u003cstrong\u003ecommon 2.0 ft³ chamber\u003c\/strong\u003e in a footprint that works with your vehicle's rear seat geometry instead of against it. \u003cstrong\u003eLangboard Elite MDF. V-groove and dado joinery. Internal bracing throughout. Proline X ABS\/carbon fiber terminal cup\u003c\/strong\u003e with stainless hardware and copper ring terminals. Hand-assembled in Tennessee and inspected before it ships.\u003c\/p\u003e\n\u003cp\u003eTwo drivers. Common sealed chamber. Wedge profile. Shipping included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Dark Grey Trunk Liner","offer_id":43491170189401,"sku":"P12D-WS III-G","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Plush Black Carpet","offer_id":43491170222169,"sku":"P12D-WS III - B","price":239.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Arcx2Dual12Bundle.png?v=1783028485","url":"https:\/\/audiointensity.com\/products\/proline-x-performance-wedge-p12-wds-iii-sealed-enclosure-for-dual-12-subwoofers","provider":"Audio Intensity","version":"1.0","type":"link"}