{"product_id":"proline-x-jeep-wrangler-edition-dual-12-down-firing-sealed-subwoofer-enclosure-stereo-integrity-sql-12","title":"Proline X Jeep Wrangler Edition Dual 12\" Down-Firing Sealed Subwoofer Enclosure | Stereo Integrity SQL-12","description":"\u003c!-- PROLINE X VEHICLE SPECIFIC SERIES: JEEP WRANGLER EDITION DUAL 12\" DOWN-FIRING, optimized for the Stereo Integrity SQL-12. Styles carried from the Bronco Edition. --\u003e\n\n\u003cstyle\u003e\n  .vs-wrap * { box-sizing: border-box; }\n  .vs-wrap { font-family: inherit; color: #1e293b; line-height: 1.7; max-width: 1200px; }\n\n  \/* ── Hero ── *\/\n  .vs-hero {\n    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);\n    border-radius: 8px;\n    padding: 40px 36px;\n    margin-bottom: 32px;\n    position: relative;\n    overflow: hidden;\n  }\n  .vs-hero::before {\n    content: '';\n    position: absolute;\n    top: -60px;\n    right: -60px;\n    width: 260px;\n    height: 260px;\n    background: rgba(37, 99, 235, 0.12);\n    border-radius: 50%;\n  }\n  .vs-hero::after {\n    content: '';\n    position: absolute;\n    bottom: -40px;\n    right: 80px;\n    width: 160px;\n    height: 160px;\n    background: rgba(59, 130, 246, 0.08);\n    border-radius: 50%;\n  }\n  .vs-hero-badge {\n    display: inline-block;\n    background: rgba(37, 99, 235, 0.25);\n    color: #93c5fd;\n    font-size: 0.72em;\n    font-weight: 700;\n    letter-spacing: 0.12em;\n    text-transform: uppercase;\n    padding: 4px 14px;\n    border-radius: 3px;\n    border: 1px solid rgba(147, 197, 253, 0.3);\n    margin-bottom: 18px;\n  }\n  .vs-hero h2 {\n    color: #ffffff;\n    font-size: 1.85em;\n    font-weight: 800;\n    margin: 0 0 16px 0;\n    line-height: 1.2;\n  }\n  .vs-hero h2 span { color: #93c5fd; }\n  .vs-hero p {\n    color: #cbd5e1;\n    font-size: 0.97em;\n    margin: 0;\n    max-width: 620px;\n    line-height: 1.7;\n  }\n  .vs-hero p strong { color: #ffffff; }\n\n  \/* ── Fitment Alert ── *\/\n  .vs-fitment-alert {\n    background: #eff6ff;\n    border: 1px solid #bfdbfe;\n    border-left: 5px solid #2563eb;\n    border-radius: 0 6px 6px 0;\n    padding: 18px 24px;\n    margin-bottom: 28px;\n    display: flex;\n    align-items: flex-start;\n    gap: 16px;\n  }\n  .vs-fitment-alert-icon {\n    background: #2563eb;\n    color: #ffffff;\n    font-size: 0.75em;\n    font-weight: 800;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n    padding: 5px 10px;\n    border-radius: 3px;\n    white-space: nowrap;\n    margin-top: 2px;\n  }\n  .vs-fitment-alert p { color: #1e3a8a; font-size: 0.93em; margin: 0; line-height: 1.6; }\n  .vs-fitment-alert strong { color: #1e40af; }\n\n  \/* ── Section ── *\/\n  .vs-section {\n    background: #ffffff;\n    border-radius: 6px;\n    padding: 24px 28px;\n    margin-bottom: 32px;\n  }\n  .vs-section h3 {\n    color: #1e40af;\n    font-size: 1.1em;\n    font-weight: 800;\n    margin: 0 0 14px 0;\n    padding-bottom: 10px;\n    border-bottom: 2px solid #bfdbfe;\n  }\n  .vs-section p {\n    color: #334155;\n    font-size: 0.97em;\n    margin: 0 0 12px 0;\n  }\n  .vs-section p:last-child { margin-bottom: 0; }\n\n  \/* ── Why Cards ── *\/\n  .vs-card-grid {\n    display: grid;\n    grid-template-columns: repeat(2, 1fr);\n    gap: 16px;\n    margin-bottom: 32px;\n  }\n  @media (max-width: 600px) { .vs-card-grid { grid-template-columns: 1fr; } }\n  .vs-card {\n    background: #ffffff;\n    border: 1px solid #e2e8f0;\n    border-top: 3px solid #2563eb;\n    border-radius: 6px;\n    padding: 22px;\n  }\n  .vs-card-label {\n    display: inline-block;\n    background: #2563eb;\n    color: #ffffff;\n    font-size: 0.68em;\n    font-weight: 700;\n    letter-spacing: 0.1em;\n    text-transform: uppercase;\n    padding: 3px 10px;\n    border-radius: 3px;\n    margin-bottom: 10px;\n  }\n  .vs-card h4 { color: #1e40af; font-size: 1em; font-weight: 700; margin: 0 0 10px 0; }\n  .vs-card-divider { height: 2px; background: #2563eb; width: 32px; margin-bottom: 12px; border-radius: 2px; }\n  .vs-card p { font-size: 0.93em; color: #475569; margin: 0; line-height: 1.65; }\n  .vs-card p strong { color: #1e40af; }\n\n  \/* ── Warranty ── *\/\n  .vs-warranty {\n    background: #0f172a;\n    border-left: 5px solid #2563eb;\n    border-radius: 0 6px 6px 0;\n    padding: 20px 28px;\n    margin: 28px 0;\n    display: flex;\n    align-items: center;\n    gap: 20px;\n  }\n  .vs-warranty-badge {\n    background: #2563eb;\n    color: #ffffff;\n    font-size: 1em;\n    font-weight: 800;\n    padding: 10px 16px;\n    border-radius: 4px;\n    white-space: nowrap;\n  }\n  .vs-warranty p { color: #cbd5e1; font-size: 0.93em; margin: 0; line-height: 1.6; }\n  .vs-warranty strong { color: #ffffff; }\n\n  \/* ── Fitment List ── *\/\n  .vs-fitment-list {\n    list-style: none;\n    margin: 14px 0 0 0;\n    padding: 0;\n    display: grid;\n    grid-template-columns: repeat(2, 1fr);\n    gap: 8px;\n  }\n  @media (max-width: 560px) { .vs-fitment-list { grid-template-columns: 1fr; } }\n  .vs-fitment-list li {\n    font-size: 0.93em;\n    color: #334155;\n    padding: 8px 12px;\n    background: #eff6ff;\n    border-left: 3px solid #2563eb;\n    border-radius: 0 4px 4px 0;\n  }\n\n  .vs-divider { border: none; border-top: 1px solid #e2e8f0; margin: 32px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"vs-wrap\"\u003e\n\n  \u003c!-- HERO --\u003e\n  \u003cdiv class=\"vs-hero\"\u003e\n    \u003cspan class=\"vs-hero-badge\"\u003eVehicle Specific Series | Jeep Wrangler Edition | Enclosure Only\u003c\/span\u003e\n    \u003ch2\u003eDual 12\". \u003cspan\u003eDown-Firing.\u003c\/span\u003e\u003cbr\u003eBuilt for the 4-door Wrangler JL and JK.\u003c\/h2\u003e\n    \u003cp\u003eThe Proline X Jeep Wrangler Edition is a dual 12\" sealed down-fire enclosure sized for the Stereo Integrity SQL-12. \u003cstrong\u003eTwo separate 1.025 cu ft chambers, a 1.5\" double bottom baffle with the flange recessed flush, and a flat carpeted top that still carries cargo.\u003c\/strong\u003e CNC-cut in Tennessee from Langboard Elite MDF. Pre-wired 12g OFC. Feet included.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- FITMENT ALERT --\u003e\n  \u003cdiv class=\"vs-fitment-alert\"\u003e\n    \u003cspan class=\"vs-fitment-alert-icon\"\u003eFitment\u003c\/span\u003e\n    \u003cp\u003e\u003cstrong\u003eDesigned for the Jeep Wrangler JL Unlimited 4-door (2018 to 2026) and Jeep Wrangler JK Unlimited 4-door (2007 to 2018). Not for 2-door Wranglers or the Jeep Gladiator.\u003c\/strong\u003e At 16\" deep it needs the longer cargo floor of the 4-door; a 2-door has about 14\" behind the upright rear seat. The enclosure is 38\"W x 16\"D x 10.31\"H and sits in the cargo area without factory mounting point integration. Confirm your available cargo space before ordering.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SECTION: Alignment --\u003e\n  \u003cdiv class=\"vs-section\"\u003e\n    \u003ch3\u003eEngineered for the Stereo Integrity SQL-12\u003c\/h3\u003e\n    \u003cp\u003eHeight was solved, not picked. The 38\" x 16\" footprint was fixed by the cargo area, and the height was set so the pair nets exactly 2.05 cu ft after the SQL-12's published 0.15 cu ft displacement is taken out of each chamber. Each driver gets 1.025 cu ft of sealed air.\u003c\/p\u003e\n    \u003cp\u003eAt that volume the SQL-12 (Fs 34.1 Hz, Qts 0.57, Vas 22.5 L) lands at \u003cstrong\u003eQtc 0.759, Fc 45.4 Hz and F3 42.5 Hz\u003c\/strong\u003e anechoic. That is a slightly punchy sealed alignment with a mild lift at resonance, which suits a high-Qts driver in a cargo area. A textbook Qtc 0.707 would need a 13.4\" tall box; this one gives up very little extension to stay low enough to load gear on top. Cabin gain and floor loading carry the response well below the anechoic F3.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eMounting geometry:\u003c\/strong\u003e 11.375\" cutout (SI specifies 11.33\"), 13.25\" flange recess in the outer baffle layer, 8.06\" maximum mounting depth against the SQL-12's 7.0\". Other 12\" drivers fit inside those limits, but the alignment above is computed for the SQL-12.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SECTION: Down-Firing --\u003e\n  \u003cdiv class=\"vs-section\"\u003e\n    \u003ch3\u003eDown-Firing Is a Design Decision\u003c\/h3\u003e\n    \u003cp\u003eDown-firing placement uses the cargo floor as an acoustic boundary. A driver firing into a hard surface at close range is loaded by it, reinforcing low-frequency output compared with the same driver firing into open air.\u003c\/p\u003e\n    \u003cp\u003eWith both drivers facing down, the top surface is flat, unobstructed and load-bearing. The drivers are protected from cargo contact, and you keep the Wrangler's cargo utility.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- WHY CARDS --\u003e\n  \u003cdiv class=\"vs-card-grid\"\u003e\n\n    \u003cdiv class=\"vs-card\"\u003e\n      \u003cspan class=\"vs-card-label\"\u003eAcoustic\u003c\/span\u003e\n      \u003ch4\u003eGround-Coupling Loads Both Drivers\u003c\/h4\u003e\n      \u003cdiv class=\"vs-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eBoth SQL-12s fire into the Wrangler's cargo floor from a fixed standoff. The floor acts as an acoustic boundary that loads both cones at once, reinforcing output across the low-frequency range compared with a rear-firing box in the same space.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"vs-card\"\u003e\n      \u003cspan class=\"vs-card-label\"\u003eAcoustic\u003c\/span\u003e\n      \u003ch4\u003eTwo Fully Separate Chambers\u003c\/h4\u003e\n      \u003cdiv class=\"vs-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eA full-height divider splits the cabinet into two sealed chambers of 1.025 cu ft each. \u003cstrong\u003eEach SQL-12 sees its own air spring\u003c\/strong\u003e, so one driver cannot load the other and both run the same alignment.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"vs-card\"\u003e\n      \u003cspan class=\"vs-card-label\"\u003eConstruction\u003c\/span\u003e\n      \u003ch4\u003e1.5\" Double Bottom Baffle, Toe-Mounted\u003c\/h4\u003e\n      \u003cdiv class=\"vs-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eThe bottom baffle is two laminated 0.75\" layers. The outer layer is opened to 13.25\" so the SQL-12's 12.91\" flange drops in flush; the inner layer carries the 11.375\" cutout and takes the mounting screws. \u003cstrong\u003eThe flange sits flush with the bottom face\u003c\/strong\u003e and the driver bolts into a full 0.75\" of solid MDF.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"vs-card\"\u003e\n      \u003cspan class=\"vs-card-label\"\u003eConstruction\u003c\/span\u003e\n      \u003ch4\u003eDado and V-Cut Joinery: No Butt Joints\u003c\/h4\u003e\n      \u003cdiv class=\"vs-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eEvery panel joint is machined with interlocking dado and V-cut geometry. The panels register mechanically before adhesive is applied. \u003cstrong\u003eMechanical registration produces a tighter acoustic seal\u003c\/strong\u003e and a stiffer assembly than surface-bonded panels.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"vs-card\"\u003e\n      \u003cspan class=\"vs-card-label\"\u003eWiring\u003c\/span\u003e\n      \u003ch4\u003ePre-Wired 12g OFC to Both Chambers\u003c\/h4\u003e\n      \u003cdiv class=\"vs-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eInternal 12-gauge oxygen-free copper is pre-run to both cutouts and terminated at one side-mounted Proline X terminal cup. The lead to the far chamber passes the divider through a sealed port. \u003cstrong\u003ePull the leads, connect your drivers, done.\u003c\/strong\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"vs-card\"\u003e\n      \u003cspan class=\"vs-card-label\"\u003eMaterial\u003c\/span\u003e\n      \u003ch4\u003eLangboard Elite MDF, Published Mill Data\u003c\/h4\u003e\n      \u003cdiv class=\"vs-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eLangboard Elite is a named, mill-documented panel with published density, internal bond and screw-holding figures. \u003cstrong\u003e200 psi internal bond. 325 lb face screw holding.\u003c\/strong\u003e The same panel stock used across the full Proline X lineup.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"vs-card\"\u003e\n      \u003cspan class=\"vs-card-label\"\u003eGraphics\u003c\/span\u003e\n      \u003ch4\u003eFour Jeep Front Graphic Versions\u003c\/h4\u003e\n      \u003cdiv class=\"vs-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eThe front face carries a raised hex plate with a lasered acrylic insert set into a 0.25\" pocket. Choose Version Jeep 1 (Rubicon), 2 (Sahara), 3 (Willys) or 4 (392) at checkout, white lettering on a black insert.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"vs-card\"\u003e\n      \u003cspan class=\"vs-card-label\"\u003ePractical\u003c\/span\u003e\n      \u003ch4\u003eFeet Included: Correct Standoff Out of the Box\u003c\/h4\u003e\n      \u003cdiv class=\"vs-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eFeet are installed before shipment and set the standoff between the drivers and the cargo floor. \u003cstrong\u003eNo improvised spacers, no field modifications.\u003c\/strong\u003e The top stays flat and carpeted, so gear still loads on top.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003chr class=\"vs-divider\"\u003e\n\n  \u003c!-- SECTION: Wiring --\u003e\n  \u003cdiv class=\"vs-section\"\u003e\n    \u003ch3\u003eWiring Two SQL-12s\u003c\/h3\u003e\n    \u003cp\u003ePlan on 700 to 1,000 W RMS per driver at the final wired impedance. For the dual 2 ohm SQL-12, wire each sub's coils in series (4 ohm per sub) and the two subs in parallel for a \u003cstrong\u003e2 ohm final load\u003c\/strong\u003e. For the dual 4 ohm SQL-12, coils in parallel and subs in parallel gives 1 ohm, which many amplifiers are not stable at; coils in series and subs in parallel gives 4 ohm. Match the final load to what your amplifier is rated for.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SECTION: Construction --\u003e\n  \u003cdiv class=\"vs-section\"\u003e\n    \u003ch3\u003eBuilt in Tennessee on ShopSabre CNC Routers\u003c\/h3\u003e\n    \u003cp\u003eEvery Proline X Vehicle Specific enclosure is CNC-cut and hand-assembled in Tullahoma, Tennessee. Dado depth, V-cut geometry, cutout and recess diameters, and external dimensions are held to spec on every unit. Internal volume is calculated, programmed and cut.\u003c\/p\u003e\n    \u003cp\u003eFinished in plush black automotive carpet with a lasered acrylic front insert. Every unit is inspected before shipment.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SECTION: Fitment --\u003e\n  \u003cdiv class=\"vs-section\"\u003e\n    \u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\n    \u003cul class=\"vs-fitment-list\"\u003e\n      \u003cli\u003eJeep Wrangler JL Unlimited 4-door (2018 to 2026)\u003c\/li\u003e\n      \u003cli\u003eJeep Wrangler JK Unlimited 4-door (2007 to 2018)\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp style=\"margin-top: 14px; font-size: 0.9em; color: #64748b;\"\u003eNot compatible with 2-door Wranglers or the Jeep Gladiator. Enclosure sits in the cargo area. No factory mounting point integration. Confirm available cargo dimensions (38\"W x 16\"D x 10.31\"H) before ordering.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- WARRANTY --\u003e\n  \u003cdiv class=\"vs-warranty\"\u003e\n    \u003cdiv class=\"vs-warranty-badge\"\u003e2-Year Warranty\u003c\/div\u003e\n    \u003cp\u003e\u003cstrong\u003eAll Proline X Vehicle Specific Series enclosures are covered by a two-year manufacturer's warranty\u003c\/strong\u003e against defects in materials and workmanship. Built and inspected in our Tennessee facility. Contact Audio Intensity directly for warranty support.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n","brand":"Proline X","offers":[{"title":"Version Jeep 1","offer_id":47778737717337,"sku":"VS JW 12D-S DF-1","price":519.99,"currency_code":"USD","in_stock":true},{"title":"Version Jeep 2","offer_id":47778737750105,"sku":"VS JW 12D-S DF-2","price":519.99,"currency_code":"USD","in_stock":true},{"title":"Version Jeep 3","offer_id":47778737782873,"sku":"VS JW 12D-S DF-3","price":519.99,"currency_code":"USD","in_stock":true},{"title":"Version Jeep 4","offer_id":47783393558617,"sku":"VS JW 12D-S DF-4","price":519.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Jeep-V1-Rubicon-front.jpg?v=1794199304","url":"https:\/\/audiointensity.com\/products\/proline-x-jeep-wrangler-edition-dual-12-down-firing-sealed-subwoofer-enclosure-stereo-integrity-sql-12","provider":"Audio Intensity","version":"1.0","type":"link"}