{"product_id":"proline-x-performance-optimized-wedge-enclosure-fits-kicker-solo-x-12-subwoofer","title":"Proline X Performance Optimized Wedge Enclosure | Fits Kicker Solo X 12\" 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 12\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e12\" Sealed Wedge Enclosure | Behind-Seat Wedge Design for the Kicker Solo X L7X 12\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.33 ft³ Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.13 ft³ Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eTightly Damped\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e16.75\" × 15.25\" × 11.75\/17.25\"\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 12 in a Purpose-Built Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe Solo X L7X 12 is the sweet spot of the SoloX line for daily systems: the full triple-stacked ferrite motor and 3-inch coil of the big drivers in a size that still fits behind a seat. This wedge was computed directly from Kicker's factory Thiele\/Small parameters, not adapted from a generic 12\" box, and it maximizes every cubic inch the footprint allows.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.33 cu ft gross internal volume produces 1.13 cu ft net after driver displacement. That puts the dual 1-ohm Solo X 12 at a tightly damped Qtc of 0.61 and the dual 2-ohm at 0.64: firmly in the control-first zone below Butterworth, with no peaking anywhere in the passband.\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 12\u003c\/h2\u003e\n\u003cp\u003eBuilt to 1.13 cubic feet net, every cubic inch a behind-seat 12 wedge footprint allows. The dual 1-ohm 49L7X121 runs a Qtc of 0.61 and the dual 2-ohm 49L7X122 runs 0.64: alignments on the damped side of Butterworth, where the box and suspension keep the massive SoloX motor on a short leash. The payoff is bass with zero bloom, kick drums that hit and stop, and a gradual roll-off that in-vehicle cabin gain fills back in below the knee. If you want a Solo X 12 for accuracy and articulation rather than one-note boom, this is the alignment built for it.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003cp\u003eDual 1-Ohm: Qtc 0.61 · Fc 50 Hz · F3 59.8 Hz — Dual 2-Ohm: Qtc 0.64 · Fc 52 Hz · F3 58.8 Hz\u003c\/p\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eThe baffle is CNC-cut to 11-1\/16\" (Kicker spec). Mounting depth required is 10-1\/8\", 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 12 in this enclosure's 1.13 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 12 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 d=\"M70,204.4 L82,198.2 L95,192.1 L107,186.0 L120,180.0 L132,174.0 L145,168.2 L157,162.4 L170,156.7 L182,151.1 L194,145.7 L207,140.4 L219,135.2 L232,130.2 L244,125.4 L257,120.8 L269,116.3 L282,112.1 L294,108.2 L307,104.4 L319,100.9 L331,97.7 L344,94.7 L356,91.9 L369,89.4 L381,87.1 L394,85.1 L406,83.2 L419,81.5 L431,80.0 L443,78.7 L456,77.5 L468,76.4 L481,75.5 L493,74.7 L506,73.9 L518,73.3 L531,72.7 L543,72.2 L556,71.8 L568,71.4 L580,71.0 L593,70.7 L605,70.4 L618,70.2 L630,69.9 L643,69.7 L655,69.6 L668,69.4 L680,69.3\" fill=\"none\" stroke=\"#0f172a\" stroke-width=\"2.5\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M70,200.8 L82,194.8 L95,188.8 L107,182.9 L120,177.0 L132,171.2 L145,165.5 L157,160.0 L170,154.5 L182,149.1 L194,143.9 L207,138.8 L219,133.9 L232,129.1 L244,124.5 L257,120.1 L269,115.9 L282,112.0 L294,108.2 L307,104.7 L319,101.4 L331,98.3 L344,95.5 L356,92.8 L369,90.4 L381,88.2 L394,86.2 L406,84.4 L419,82.7 L431,81.2 L443,79.9 L456,78.7 L468,77.6 L481,76.6 L493,75.7 L506,74.9 L518,74.2 L531,73.6 L543,73.0 L556,72.5 L568,72.1 L580,71.7 L593,71.3 L605,71.0 L618,70.7 L630,70.4 L643,70.2 L655,70.0 L668,69.8 L680,69.6\" 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 0.61, Fc 50 Hz, F3 59.8 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 0.64, Fc 52 Hz, F3 58.8 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 12 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 12.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring the Kicker Solo X 12 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eKicker recommends 1000-2000 watts RMS for the Solo X 12. In this sealed alignment, anything in that range at the woofer's wired impedance makes a headroom-rich system; the tight damping 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 or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eKicker Solo X 12: Tight, Controlled Power in a Behind-Seat Wedge\u003c\/h2\u003e\n\u003cp\u003e1.13 cubic feet net, solved from factory T\/S for a tightly damped alignment. Zero bloom, all authority, 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":44575786532953,"sku":"PO 12-S W Solo X","price":449.99,"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","url":"https:\/\/audiointensity.com\/products\/proline-x-performance-optimized-wedge-enclosure-fits-kicker-solo-x-12-subwoofer","provider":"Audio Intensity","version":"1.0","type":"link"}