{"title":"Skar Audio Subwoofer Boxes and Enclosures","description":"\u003cdiv class=\"ai-collection-block\"\u003e\n\u003cp\u003eSkar Audio covers a wide span, from the high-excursion EVL to the VS and VD lines built around a tighter budget. The enclosures here follow that span: sealed and ported, wedge, down-fire and standard front-firing, in Performance Optimized and Professional Series construction, from 10 to 15 inch.\u003c\/p\u003e\n\u003cp\u003eEvery cabinet is machined in Tullahoma, Tennessee to the parameters Skar publishes for the one driver it names, so match the model number rather than the cone size.\u003c\/p\u003e\n\u003c\/div\u003e","products":[{"product_id":"skar-evl-12-subwoofer-box","title":"Skar Audio EVL-12 Box: Ported 12\" Professional Series Enclosure","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 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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\u003eProfessional Series Ported 12\" Enclosure | Skar Audio EVL-12\u003c\/h2\u003e\n \u003cp\u003eA ported twelve-inch box built around the Skar Audio EVL-12's own numbers, with the tradeoffs stated plainly\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e2.00 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 35.0 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 Skar Audio EVL-12\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 35.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThe Skar Audio EVL-12 D2 is a low-Qts, high-excursion driver, and this cabinet gives it 2.00 cubic feet net, vented at 35.0 Hz through a 36.2 square inch port. F3 lands at 29.1 Hz with 5.08 dB of passband ripple. It is the single-driver ported box in the professional Skar line.\u003c\/p\u003e\n \u003cp\u003eThe port on this box stays clean up to 1500 W, past the coil's own 1250 W power rating, so the coil reaches its limit before the port becomes audible. Ripple across the passband holds at 5.08 dB, and the in-car curve stays essentially flat rather than peaked 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 16.00\" H x 14.88\" 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 single-twelve ported envelope built around the EVL-12's own frame and motor depth.\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 EVL-12 D2 are Skar's own published figures, carried as published rather than corrected: Skar's own Qts is off from what its own Qes and Qms would predict by about 10 percent, and Fs is off from what its own Mms and Cms would predict by about 25 percent. Skar publish no displacement figure for this driver, so the 0.14 cubic foot figure used in this build's math is estimated rather than published.\u003c\/p\u003e\n \u003cp\u003eThis cabinet is 2.00 cubic feet net, with a slot port of 36.2 square inches tuned to 35.0 Hz; the port stays under the chuff threshold at 1500 W, the design power basis.\u003c\/p\u003e\n \u003cp\u003eSet a 28 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in place the cone reaches 9.4 mm of its 23.5 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":40987925446745,"sku":"Pro12-P Skar","price":496.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/products\/skar-evl-12-professional-series-12-inch-ported-boxproline-x-731939.jpg?v=1761970118"},{"product_id":"performance-optimized-wedge-sealed-10-enclosure-skar-audio-evl-10","title":"Skar Audio EVL-10 Box: Sealed 10\" Wedge Enclosure","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 | Skar Audio EVL-10\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e10\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e0.65 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e0.75 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.69\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e16.03\" x 13\" x 9.00\/13.73\"\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 Skar EVL-10 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe EVL-10 is Skar Audio's 10 inch: 1000 watts RMS, 23.5 mm of one-way excursion on 314 square centimeters of cone, and 7.16 inches of mounting depth. Every figure comes from the Thiele-Small table Skar prints on its EVL-10 product page. Skar publishes no driver displacement, so 0.092 cubic feet is our estimate from comparable 10 inch woofers, and it moves the net figure by a few hundredths at most.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e0.65 cubic feet net is split between the coils' Butterworth volumes (0.55 for the D2, 0.76 for the D4) on the D2 figures, Fs 44.0 Hz, Qts 0.59 and Vas 6.8 liters: Qtc 0.690, half power at 52.8 Hz. One cabinet serves both coils: the EVL-10 D2 reads Qtc 0.690 with half power at 52.8 Hz, and the D4 reads Qtc 0.721 at 51.3 Hz. Skar's own recommended sealed volume is 1.25 to 1.5 cubic feet, which reads Qtc 0.64 on the D2 and 0.67 on the D4.\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 Skar EVL-10\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 52.8 Hz anechoic on the D2, before any cabin gain. Driver displacement is not published, so an estimated 0.092 cubic feet is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.690\u003c\/td\u003e\n\u003ctd\u003e51.5 Hz\u003c\/td\u003e\n\u003ctd\u003e52.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.721\u003c\/td\u003e\n\u003ctd\u003e52.3 Hz\u003c\/td\u003e\n\u003ctd\u003e51.3 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eThe baffle is cut to 9.39 in, Skar's published cutout, under the 10.89 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 9.00 in at the top to 13.73 in at the base, and the 7.16 in motor clears it with 0.75 in to spare. Skar prints no bolt circle for the EVL-10, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down.\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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar's Published Parameters\u003c\/h4\u003e\n\u003cp\u003eD2: Fs 44.0 Hz, Qts 0.59, Qes 0.66, Qms 5.44, Vas 6.8 L, Sd 314 cm2, Cms 0.048 mm\/N, Bl 20.9 N\/A, Mms 259 g. D4: Fs 45.0 Hz, Qts 0.62, Qes 0.69, Qms 5.21, Vas 6.5 L, Sd 314 cm2, Cms 0.046 mm\/N, Bl 12.3 N\/A, Mms 243 g.\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 Skar EVL-10 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe EVL-10 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. The EVL-10 D4 wires to 8 ohms in series or 2 ohms in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the final load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1000 watts RMS per driver. 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 with the gloss black acrylic baffle insert, one pre-wired terminal cup, 12 gauge OFC to the driver position. Polyfill wall lining installed. Threaded insert kit and stainless machine screws in the box. 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\u003eSkar Audio EVL-10: Cut for the Driver\u003c\/h2\u003e\n\u003cp\u003e0.65 cubic feet net at Qtc 0.690, F3 52.8 Hz on the D2, 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":47334567772249,"sku":"PO 10-S W EVL10 BB","price":269.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334567805017,"sku":"PO 10-S W EVL10 B","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10-S_W_EVL10_Front.jpg?v=1790423108"},{"product_id":"performance-optimized-down-fire-ported-12-enclosure-skar-audio-vs-12","title":"Skar Audio VS-12 Box: Ported 12\" Down Fire Enclosure","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 Down Fire 12\" Ported\u003c\/h2\u003e\n \u003cp\u003eThe VS-12 vented at 35.0 Hz on a 7.75 inch down fire, 1.52 cubic feet and a 33.1 Hz F3\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.52 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 35.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 33.1 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eL-wrap slot port\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eCut for the Skar Audio VS-12\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\"\u003e1.52\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\"\u003e35.0\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\"\u003e33.1\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\"\u003e25.0\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 35.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VS-12 is a shallow 12 inch from Skar: 36.0 Hz free-air resonance, 34.5 litres of Vas, a Qts of 0.75 and 9.1 mm of one-way Xmax on a 4.43 inch mounting depth. This cabinet gives it 1.52 cubic feet net, vents it at 35.0 Hz through a 25.0 square inch slot and reaches an anechoic F3 of 33.1 Hz on a 31 by 18 by 7.75 inch down fire footprint that ships with feet.\u003c\/p\u003e\n \u003cp\u003eWith a Qts of 0.75 the VS-12 is above the 0.707 Butterworth line before it goes in any box, so no sealed cabinet makes it flat; a port is what it wants. Here the slot runs 14.5 m\/s in the channel and 13.7 at the mouth at Skar's 500 W rating, the cone peaks at 7.0 of its 9.1 mm, and passband ripple is 3.1 dB. Skar's own ported recommendation is 2.00 cubic feet at 32 Hz, before driver and port displacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n \u003cp\u003eA ported cabinet is easy to get wrong and the failure is audible. This one uses an\n L-wrap slot port: a single folded wall running down the long side of the box past the\n woofer ring, turning once through a faceted 90 degree bend, and opening through a\n chamfered corner. One wall, one bend, 28.25 inches of centreline path.\u003c\/p\u003e\n \u003cp\u003eThe channel is 4.00 inches wide by 6.25 tall, 25.0 square inches, and it exits\n through a 26.5 square inch mouth. Air leaves at 13.7 metres per second at the tuning\n frequency, against the 17.0 metre per second threshold where a slot port starts to\n chuff. The bend is faceted rather than square because the inner corner of a 90 degree\n turn is where flow separates, and a sharp corner there is what you hear.\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\n cabinet we build. It does not go in this one. Damping material in a vented box\n changes the effective volume the port is tuned against, which moves the tuning\n frequency away from the 35.0 Hz the port length was cut for. Adding it does not make\n a ported box sound like a bigger ported box; it makes it a mistuned one.\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\u003eThis is not optional advice on a vented enclosure. Below tuning the port stops\n loading the cone and excursion climbs without limit toward DC, so a 28 Hz high-pass at\n 24 dB per octave is part of the specification rather than a refinement of it. Set it\n and the same cabinet takes substantially more power for the same cone travel. Leave it\n out and the driver runs out of suspension on material you cannot hear.\u003c\/p\u003e\n \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, not an electrical\n one: it is the power at which the cone reaches the end of its linear travel in this\n box. What the voice coil can dissipate as heat is a separate ceiling set by Skar Audio, not by\n the cabinet.\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 Skar Audio's published 11.040 inch cutout with a\n 13.750 inch ring bonded under the baffle. The ring drops into a machined recess so it\n self-centres, and it roughly doubles the glue area over a butt joint.\u003c\/p\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThreaded, not screwed\u003c\/h4\u003e\n\u003cp\u003eEight #8-32 hurricane nuts are\n driven into the ring before it is bonded, so the driver mounts into steel rather than\n into MDF and survives being unbolted more than once. The ring is cut with sixteen\n positions so the driver can be clocked to whatever orientation the install needs;\n eight are fitted.\u003c\/p\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eA windowed brace sits between the woofer cutout\n and the port terminus, 3.28 inches clear of the cutout edge. The window is not weight\n saving: a solid panel there would split the cavity and turn the cabinet into a\n bandpass.\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\n material, double-layer 1.5 inch baffle. The walls seat into dados in both the lid and\n the baffle rather than butting against them.\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\u003eSkar Audio rate the VS-12 at 500 W RMS. Terminal cup is side mounted, as on every Performance\n Optimized cabinet. If you are running a dual 2 ohm driver, note that parallel wiring\n presents 1 ohm, which many amplifiers are not stable into; series at 4 ohm is the safe\n default unless yours is rated for it.\u003c\/p\u003e\n \u003cp\u003ePerformance Optimized carries a 1-year warranty. The enclosure is built to order in\n Tullahoma, Tennessee, and the 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 Skar Audio VS-12. Nothing on this page is a rule of thumb: the\n alignment, the port geometry and the power figures all come from Skar Audio's published\n parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334569148505,"sku":"PO 12-P DF VS12","price":339.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12-P_DF_VS12_Front.jpg?v=1790422943"},{"product_id":"performance-optimized-down-fire-ported-10-enclosure-skar-audio-vd-10","title":"Skar Audio VD-10 Box: Ported 10\" Down Fire Enclosure","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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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 Down Fire 10\" Ported\u003c\/h2\u003e\n \u003cp\u003eThe VD-10 vented at 34.0 Hz on a 7.75 inch down fire, 1.34 cubic feet and a 29.7 Hz F3\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.34 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 34.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 29.7 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eL-wrap slot port\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eCut for the Skar Audio VD-10\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\"\u003e1.34\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\"\u003e29.7\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\"\u003e20.3\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 VD-10 is a shallow 10 inch from Skar: 42.0 Hz free-air resonance, 15.1 litres of Vas, a Qts of 0.47 and 11.5 mm of one-way Xmax on a 4.50 inch mounting depth. This cabinet gives it 1.34 cubic feet net, vents it at 34.0 Hz through a 20.3 square inch slot and reaches an anechoic F3 of 29.7 Hz on a 31 by 18 by 7.75 inch down fire footprint that ships with feet.\u003c\/p\u003e\n \u003cp\u003eSealed, the VD-10 needs 0.42 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. Here the slot runs 21.1 m\/s in the channel and 16.1 at the mouth at Skar's 500 W rating, the cone peaks at 8.7 of its 11.5 mm, and passband ripple is 0.8 dB. Skar's own ported recommendation is 1.25 cubic feet at 39 Hz, before driver and port displacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n \u003cp\u003eA ported cabinet is easy to get wrong and the failure is audible. This one uses an\n L-wrap slot port: a single folded wall running down the long side of the box past the\n woofer ring, turning once through a faceted 90 degree bend, and opening through a\n chamfered corner. One wall, one bend, 27.94 inches of centreline path.\u003c\/p\u003e\n \u003cp\u003eThe channel is 3.25 inches wide by 6.25 tall, 20.3 square inches, and it exits\n through a 26.5 square inch mouth. Air leaves at 16.1 metres per second at the tuning\n frequency, against the 17.0 metre per second threshold where a slot port starts to\n chuff. The bend is faceted rather than square because the inner corner of a 90 degree\n turn is where flow separates, and a sharp corner there is what you hear.\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\n cabinet we build. It does not go in this one. Damping material in a vented box\n changes the effective volume the port is tuned against, which moves the tuning\n frequency away from the 34.0 Hz the port length was cut for. Adding it does not make\n a ported box sound like a bigger ported box; it makes it a mistuned one.\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\u003eThis is not optional advice on a vented enclosure. Below tuning the port stops\n loading the cone and excursion climbs without limit toward DC, so a 27 Hz high-pass at\n 24 dB per octave is part of the specification rather than a refinement of it. Set it\n and the same cabinet takes substantially more power for the same cone travel. Leave it\n out and the driver runs out of suspension on material you cannot hear.\u003c\/p\u003e\n \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, not an electrical\n one: it is the power at which the cone reaches the end of its linear travel in this\n box. What the voice coil can dissipate as heat is a separate ceiling set by Skar Audio, not by\n the cabinet.\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 Skar Audio's published 9.350 inch cutout with a\n 11.625 inch ring bonded under the baffle. The ring drops into a machined recess so it\n self-centres, and it roughly doubles the glue area over a butt joint.\u003c\/p\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThreaded, not screwed\u003c\/h4\u003e\n\u003cp\u003eEight #8-32 hurricane nuts are\n driven into the ring before it is bonded, so the driver mounts into steel rather than\n into MDF and survives being unbolted more than once. The ring is cut with sixteen\n positions so the driver can be clocked to whatever orientation the install needs;\n eight are fitted.\u003c\/p\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eA windowed brace sits between the woofer cutout\n and the port terminus, 3.36 inches clear of the cutout edge. The window is not weight\n saving: a solid panel there would split the cavity and turn the cabinet into a\n bandpass.\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\n material, double-layer 1.5 inch baffle. The walls seat into dados in both the lid and\n the baffle rather than butting against them.\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\u003eSkar Audio rate the VD-10 at 500 W RMS. Terminal cup is side mounted, as on every Performance\n Optimized cabinet. If you are running a dual 2 ohm driver, note that parallel wiring\n presents 1 ohm, which many amplifiers are not stable into; series at 4 ohm is the safe\n default unless yours is rated for it.\u003c\/p\u003e\n \u003cp\u003ePerformance Optimized carries a 1-year warranty. The enclosure is built to order in\n Tullahoma, Tennessee, and the 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 Skar Audio VD-10. Nothing on this page is a rule of thumb: the\n alignment, the port geometry and the power figures all come from Skar Audio's published\n parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334570688601,"sku":"PO 10-P DF VD10","price":309.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10-P_DF_VD10_Front.jpg?v=1790422919"},{"product_id":"performance-optimized-down-fire-ported-12-enclosure-skar-audio-vd-12","title":"Skar Audio VD-12 Box: Ported 12\" Down Fire Enclosure","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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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 Down Fire 12\" Ported\u003c\/h2\u003e\n \u003cp\u003eThe VD-12 vented at 34.0 Hz on a 7.75 inch down fire, 1.51 cubic feet and a 35.5 Hz F3\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.51 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 34.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 35.5 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eL-wrap slot port\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eCut for the Skar Audio VD-12\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\"\u003e1.51\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\"\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\"\u003e23.4\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 34.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VD-12 is a shallow 12 inch from Skar: 35.3 Hz free-air resonance, 43.5 litres of Vas, a Qts of 0.55 and 11 mm of one-way Xmax on a 4.95 inch mounting depth. This cabinet gives it 1.51 cubic feet net, vents it at 34.0 Hz through a 23.4 square inch slot and reaches an anechoic F3 of 35.5 Hz on a 31 by 18 by 7.75 inch down fire footprint that ships with feet.\u003c\/p\u003e\n \u003cp\u003eSealed, the VD-12 needs 2.35 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. Here the slot runs 16.0 m\/s in the channel and 16.9 at the mouth at Skar's 500 W rating, the cone peaks at 7.5 of its 11 mm, and passband ripple is 1.1 dB. Skar's own ported recommendation is 1.75 cubic feet at 36 Hz, before driver and port displacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n \u003cp\u003eA ported cabinet is easy to get wrong and the failure is audible. This one uses an\n L-wrap slot port: a single folded wall running down the long side of the box past the\n woofer ring, turning once through a faceted 90 degree bend, and opening through a\n chamfered corner. One wall, one bend, 28.23 inches of centreline path.\u003c\/p\u003e\n \u003cp\u003eThe channel is 3.75 inches wide by 6.25 tall, 23.4 square inches, and it exits\n through a 22.1 square inch mouth. Air leaves at 16.9 metres per second at the tuning\n frequency, against the 17.0 metre per second threshold where a slot port starts to\n chuff. The bend is faceted rather than square because the inner corner of a 90 degree\n turn is where flow separates, and a sharp corner there is what you hear.\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\n cabinet we build. It does not go in this one. Damping material in a vented box\n changes the effective volume the port is tuned against, which moves the tuning\n frequency away from the 34.0 Hz the port length was cut for. Adding it does not make\n a ported box sound like a bigger ported box; it makes it a mistuned one.\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\u003eThis is not optional advice on a vented enclosure. Below tuning the port stops\n loading the cone and excursion climbs without limit toward DC, so a 27 Hz high-pass at\n 24 dB per octave is part of the specification rather than a refinement of it. Set it\n and the same cabinet takes substantially more power for the same cone travel. Leave it\n out and the driver runs out of suspension on material you cannot hear.\u003c\/p\u003e\n \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, not an electrical\n one: it is the power at which the cone reaches the end of its linear travel in this\n box. What the voice coil can dissipate as heat is a separate ceiling set by Skar Audio, not by\n the cabinet.\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 Skar Audio's published 11.280 inch cutout with a\n 13.500 inch ring bonded under the baffle. The ring drops into a machined recess so it\n self-centres, and it roughly doubles the glue area over a butt joint.\u003c\/p\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThreaded, not screwed\u003c\/h4\u003e\n\u003cp\u003eEight #8-32 hurricane nuts are\n driven into the ring before it is bonded, so the driver mounts into steel rather than\n into MDF and survives being unbolted more than once. The ring is cut with sixteen\n positions so the driver can be clocked to whatever orientation the install needs;\n eight are fitted.\u003c\/p\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eA windowed brace sits between the woofer cutout\n and the port terminus, 3.20 inches clear of the cutout edge. The window is not weight\n saving: a solid panel there would split the cavity and turn the cabinet into a\n bandpass.\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\n material, double-layer 1.5 inch baffle. The walls seat into dados in both the lid and\n the baffle rather than butting against them.\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\u003eSkar Audio rate the VD-12 at 500 W RMS. Terminal cup is side mounted, as on every Performance\n Optimized cabinet. If you are running a dual 2 ohm driver, note that parallel wiring\n presents 1 ohm, which many amplifiers are not stable into; series at 4 ohm is the safe\n default unless yours is rated for it.\u003c\/p\u003e\n \u003cp\u003ePerformance Optimized carries a 1-year warranty. The enclosure is built to order in\n Tullahoma, Tennessee, and the 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 Skar Audio VD-12. Nothing on this page is a rule of thumb: the\n alignment, the port geometry and the power figures all come from Skar Audio's published\n parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334571343961,"sku":"PO 12-P DF VD12","price":339.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12-P_DF_VD12_Front.jpg?v=1790422935"},{"product_id":"performance-optimized-down-fire-ported-10-enclosure-skar-audio-vs-10","title":"Skar Audio VS-10 Box: Ported 10\" Down Fire Enclosure","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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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 Down Fire 10\" Ported\u003c\/h2\u003e\n \u003cp\u003eThe VS-10 vented at 37.5 Hz on a 7.75 inch down fire, 1.25 cubic feet and a 30.8 Hz F3\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.25 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 37.5 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 30.8 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eL-wrap slot port\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eCut for the Skar Audio VS-10\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\"\u003e1.25\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\"\u003e37.5\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\"\u003e30.8\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\"\u003e21.9\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 37.5 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VS-10 is a shallow 10 inch from Skar: 38.0 Hz free-air resonance, 16.5 litres of Vas, a Qts of 0.70 and 9.1 mm of one-way Xmax on a 3.89 inch mounting depth. This cabinet gives it 1.25 cubic feet net, vents it at 37.5 Hz through a 21.9 square inch slot and reaches an anechoic F3 of 30.8 Hz on a 31 by 18 by 7.75 inch down fire footprint that ships with feet.\u003c\/p\u003e\n \u003cp\u003eSealed, the VS-10 needs 28.95 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. Here the slot runs 19.0 m\/s in the channel and 15.6 at the mouth at Skar's 500 W rating, the cone peaks at 8.1 of its 9.1 mm, and passband ripple is 3.7 dB. Skar's own ported recommendation is 1.60 cubic feet at 33 Hz, before driver and port displacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n \u003ch3\u003eThe port is the product\u003c\/h3\u003e\n \u003cp\u003eA ported cabinet is easy to get wrong and the failure is audible. This one uses an\n L-wrap slot port: a single folded wall running down the long side of the box past the\n woofer ring, turning once through a faceted 90 degree bend, and opening through a\n chamfered corner. One wall, one bend, 26.37 inches of centreline path.\u003c\/p\u003e\n \u003cp\u003eThe channel is 3.50 inches wide by 6.25 tall, 21.9 square inches, and it exits\n through a 26.5 square inch mouth. Air leaves at 15.6 metres per second at the tuning\n frequency, against the 17.0 metre per second threshold where a slot port starts to\n chuff. The bend is faceted rather than square because the inner corner of a 90 degree\n turn is where flow separates, and a sharp corner there is what you hear.\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\n cabinet we build. It does not go in this one. Damping material in a vented box\n changes the effective volume the port is tuned against, which moves the tuning\n frequency away from the 37.5 Hz the port length was cut for. Adding it does not make\n a ported box sound like a bigger ported box; it makes it a mistuned one.\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\u003eThis is not optional advice on a vented enclosure. Below tuning the port stops\n loading the cone and excursion climbs without limit toward DC, so a 30 Hz high-pass at\n 24 dB per octave is part of the specification rather than a refinement of it. Set it\n and the same cabinet takes substantially more power for the same cone travel. Leave it\n out and the driver runs out of suspension on material you cannot hear.\u003c\/p\u003e\n \u003cp\u003eEvery wattage on the Performance Graphs tab is a mechanical limit, not an electrical\n one: it is the power at which the cone reaches the end of its linear travel in this\n box. What the voice coil can dissipate as heat is a separate ceiling set by Skar Audio, not by\n the cabinet.\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 Skar Audio's published 9.075 inch cutout with a\n 11.625 inch ring bonded under the baffle. The ring drops into a machined recess so it\n self-centres, and it roughly doubles the glue area over a butt joint.\u003c\/p\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThreaded, not screwed\u003c\/h4\u003e\n\u003cp\u003eEight #8-32 hurricane nuts are\n driven into the ring before it is bonded, so the driver mounts into steel rather than\n into MDF and survives being unbolted more than once. The ring is cut with sixteen\n positions so the driver can be clocked to whatever orientation the install needs;\n eight are fitted.\u003c\/p\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eBraced\u003c\/h4\u003e\n\u003cp\u003eA windowed brace sits between the woofer cutout\n and the port terminus, 3.76 inches clear of the cutout edge. The window is not weight\n saving: a solid panel there would split the cavity and turn the cabinet into a\n bandpass.\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\n material, double-layer 1.5 inch baffle. The walls seat into dados in both the lid and\n the baffle rather than butting against them.\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\u003eSkar Audio rate the VS-10 at 500 W RMS. Terminal cup is side mounted, as on every Performance\n Optimized cabinet. If you are running a dual 2 ohm driver, note that parallel wiring\n presents 1 ohm, which many amplifiers are not stable into; series at 4 ohm is the safe\n default unless yours is rated for it.\u003c\/p\u003e\n \u003cp\u003ePerformance Optimized carries a 1-year warranty. The enclosure is built to order in\n Tullahoma, Tennessee, and the 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 Skar Audio VS-10. Nothing on this page is a rule of thumb: the\n alignment, the port geometry and the power figures all come from Skar Audio's published\n parameters run through our own solver.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334571540569,"sku":"PO 10-P DF VS10","price":309.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10-P_DF_VS10_Front.jpg?v=1790422927"},{"product_id":"performance-optimized-wedge-ported-15-enclosure-skar-audio-evl-15","title":"Skar Audio EVL-15 Box: Ported 15\" Wedge Enclosure","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 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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 EVL-15 vented at 34.5 Hz in a trunk wedge, 2.21 cubic feet and a 31.1 Hz F3\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e2.21 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 34.5 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 31.1 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eCut for the Skar Audio EVL-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\"\u003e2.21\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\"\u003e31.1\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\"\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 34.5 Hz\u003c\/h3\u003e\n \u003cp\u003eThe EVL-15 is Skar's 15 inch at 35.0 Hz, Qts 0.63, 46.0 litres of Vas and 23.5 mm of one-way Xmax on 779 square centimetres of cone. In the wedge it gets 2.21 cubic feet net, vented at 34.5 Hz through a 32.0 square inch triangular port, for an anechoic F3 of 31.1 Hz. The cabinet is 30 inches wide and 18.5 tall, 10.62 inches deep at the top and 17.36 at the base, and rakes back against the rear seat like every Proline X wedge.\u003c\/p\u003e\n \u003cp\u003eSealed, the EVL-15 needs 6.26 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The wedge's port runs 23.7 m\/s in the channel and 16.4 at the flared mouth at Skar's 1250 W rating, with the cone peaking at 9.2 of its 23.5 mm. Passband ripple is 2.4 dB. Skar's own ported recommendation is 3.50 to 3.75 cubic feet at 31 Hz, before driver and port displacement.\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\u003e17.36 inches at the base, 10.62 at the top\u003c\/h4\u003e\n\u003cp\u003e30 inches wide, 18.5 tall, 10.62 inches deep at the top and 17.36 at the base, 2.21 cubic feet net. Frame 15.50 inches over a 14.00 inch cutout, 8.54 inches of mounting depth; a threaded insert kit ships, since Skar publishes no bolt circle.\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, 24.48 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 23.7 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 46.3 square inches and air leaves it at 16.4 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 Skar 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 Skar 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\u003eSkar publishes a full Thiele-Small table for the EVL-15 on its product page, including a one-way Xmax of 23.5 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.204 cubic feet is our estimate from comparable 15 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Also: Skar publishes no outside frame diameter for its 15s; 15.50 inches is our estimate from the 14.00 inch cutout, and the baffle is sized with margin for it. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. The 8.54 inch mounting depth pushes the base of this wedge past our clean depth band, so check trunk depth before ordering.\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\u003eSkar Audio rate the EVL-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 Skar Audio EVL-15. The alignment, the port geometry and the power\n figures all come from Skar 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":47334571901017,"sku":"PO 15-P W EVL15 BB","price":519.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334572327001,"sku":"PO 15-P W EVL15 B","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-P_W_EVL15_Front.jpg?v=1790422953"},{"product_id":"performance-optimized-wedge-ported-10-enclosure-skar-audio-vd-10","title":"Skar Audio VD-10 Box: Ported 10\" Wedge Enclosure","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 10\" Ported\u003c\/h2\u003e\n \u003cp\u003eThe VD-10 vented at 37.5 Hz in a trunk wedge, 1.11 cubic feet and a 32.7 Hz F3\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.11 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 37.5 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 32.7 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eCut for the Skar Audio VD-10\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\"\u003e1.11\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\"\u003e37.5\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\"\u003e32.7\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\"\u003e18.4\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 37.5 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VD-10 is Skar's 10 inch at 42.0 Hz, Qts 0.47, 15.1 litres of Vas and 11.5 mm of one-way Xmax on 326 square centimetres of cone. In the wedge it gets 1.11 cubic feet net, vented at 37.5 Hz through a 18.4 square inch triangular port, for an anechoic F3 of 32.7 Hz. The cabinet is 30 inches wide and 13.5 tall, 8.50 inches deep at the top and 13.41 at the base, and rakes back against the rear seat like every Proline X wedge.\u003c\/p\u003e\n \u003cp\u003eSealed, the VD-10 needs 0.42 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The wedge's port runs 21.8 m\/s in the channel and 13.5 at the flared mouth at Skar's 500 W rating, with the cone peaking at 7.6 of its 11.5 mm. Passband ripple is 1.3 dB. Skar's own ported recommendation is 1.25 cubic feet at 39 Hz, before driver and port displacement.\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\u003e13.41 inches at the base, 8.50 at the top\u003c\/h4\u003e\n\u003cp\u003e30 inches wide, 13.5 tall, 8.50 inches deep at the top and 13.41 at the base, 1.11 cubic feet net. Frame 10.67 inches over a 9.35 inch cutout, 4.50 inches of mounting depth; a threaded insert kit ships, since Skar publishes no bolt circle.\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, 25.00 inches of centreline path.\u003c\/p\u003e\n \u003cp\u003eThe channel is an isosceles triangle with 6.25 inch legs, 18.4 square inches, running at\n 21.8 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 29.5 square inches and air leaves it at 13.5 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 37.5 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 30 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 Skar 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 Skar Audio's published 9.350 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\u003eSkar publishes a full Thiele-Small table for the VD-10 on its product page, including a one-way Xmax of 11.5 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.057 cubic feet is our estimate from comparable 10 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Also: Skar leaves cone area blank on the VD, so the 326 square centimetres used here is derived from their Vas and compliance. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. The cabinet depth is set by the port panel clearing the motor, not by the magnet alone.\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\u003eSkar Audio rate the VD-10 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 Skar Audio VD-10. The alignment, the port geometry and the power\n figures all come from Skar 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":47334572621913,"sku":"PO 10-P W VD10 BB","price":389.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334573015129,"sku":"PO 10-P W VD10 B","price":369.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10-P_W_VD10_Front.jpg?v=1790422965"},{"product_id":"performance-optimized-wedge-ported-12-enclosure-skar-audio-vd-12","title":"Skar Audio VD-12 Box: Ported 12\" Wedge Enclosure","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 12\" Ported\u003c\/h2\u003e\n \u003cp\u003eThe VD-12 vented at 34.0 Hz in a trunk wedge, 1.44 cubic feet and a 36.3 Hz F3\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.44 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 34.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 36.3 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eCut for the Skar Audio VD-12\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\"\u003e1.44\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\"\u003e36.3\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\"\u003e18.4\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 34.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VD-12 is Skar's 12 inch at 35.3 Hz, Qts 0.55, 43.5 litres of Vas and 11 mm of one-way Xmax on 505 square centimetres of cone. In the wedge it gets 1.44 cubic feet net, vented at 34.0 Hz through a 18.4 square inch triangular port, for an anechoic F3 of 36.3 Hz. The cabinet is 30 inches wide and 15.5 tall, 8.50 inches deep at the top and 14.14 at the base, and rakes back against the rear seat like every Proline X wedge.\u003c\/p\u003e\n \u003cp\u003eSealed, the VD-12 needs 2.35 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The wedge's port runs 19.6 m\/s in the channel and 12.2 at the flared mouth at Skar's 500 W rating, with the cone peaking at 7.4 of its 11 mm. Passband ripple is 1.1 dB. Skar's own ported recommendation is 1.75 cubic feet at 36 Hz, before driver and port displacement.\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\u003e14.14 inches at the base, 8.50 at the top\u003c\/h4\u003e\n\u003cp\u003e30 inches wide, 15.5 tall, 8.50 inches deep at the top and 14.14 at the base, 1.44 cubic feet net. Frame 12.60 inches over a 11.28 inch cutout, 4.95 inches of mounting depth; a threaded insert kit ships, since Skar publishes no bolt circle.\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, 22.88 inches of centreline path.\u003c\/p\u003e\n \u003cp\u003eThe channel is an isosceles triangle with 6.25 inch legs, 18.4 square inches, running at\n 19.6 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 29.5 square inches and air leaves it at 12.2 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 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 Skar 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 Skar Audio's published 11.280 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\u003eSkar publishes a full Thiele-Small table for the VD-12 on its product page, including a one-way Xmax of 11 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.085 cubic feet is our estimate from comparable 12 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Also: Skar leaves cone area blank on the VD, so the 505 square centimetres used here is derived from their Vas and compliance. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. The cabinet depth is set by the port panel clearing the motor, not by the magnet alone.\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\u003eSkar Audio rate the VD-12 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 Skar Audio VD-12. The alignment, the port geometry and the power\n figures all come from Skar 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":47334573211737,"sku":"PO 12-P W VD12 BB","price":419.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334573473881,"sku":"PO 12-P W VD12 B","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12-P_W_VD12_Front.jpg?v=1790422976"},{"product_id":"performance-optimized-wedge-ported-10-enclosure-skar-audio-vs-10","title":"Skar Audio VS-10 Box: Ported 10\" Wedge Enclosure","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 10\" Ported\u003c\/h2\u003e\n \u003cp\u003eThe VS-10 vented at 36.5 Hz in a trunk wedge, 1.07 cubic feet and a 30.9 Hz F3\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.07 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 36.5 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 30.9 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eCut for the Skar Audio VS-10\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\"\u003e1.07\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\"\u003e30.9\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\"\u003e16.9\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 36.5 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VS-10 is Skar's 10 inch at 38.0 Hz, Qts 0.70, 16.5 litres of Vas and 9.1 mm of one-way Xmax on 363 square centimetres of cone. In the wedge it gets 1.07 cubic feet net, vented at 36.5 Hz through a 16.9 square inch triangular port, for an anechoic F3 of 30.9 Hz. The cabinet is 30 inches wide and 13.5 tall, 8.12 inches deep at the top and 13.04 at the base, and rakes back against the rear seat like every Proline X wedge.\u003c\/p\u003e\n \u003cp\u003eSealed, the VS-10 needs 28.95 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The wedge's port runs 21.8 m\/s in the channel and 13.3 at the flared mouth at Skar's 500 W rating, with the cone peaking at 8.2 of its 9.1 mm. Passband ripple is 3.0 dB. Skar's own ported recommendation is 1.60 cubic feet at 33 Hz, before driver and port displacement.\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\u003e13.04 inches at the base, 8.12 at the top\u003c\/h4\u003e\n\u003cp\u003e30 inches wide, 13.5 tall, 8.12 inches deep at the top and 13.04 at the base, 1.07 cubic feet net. Frame 10.67 inches over a 9.07 inch cutout, 3.89 inches of mounting depth; a threaded insert kit ships, since Skar publishes no bolt circle.\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, 25.45 inches of centreline path.\u003c\/p\u003e\n \u003cp\u003eThe channel is an isosceles triangle with 6.00 inch legs, 16.9 square inches, running at\n 21.8 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 27.7 square inches and air leaves it at 13.3 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 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 Skar 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 Skar Audio's published 9.075 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\u003eSkar publishes a full Thiele-Small table for the VS-10 on its product page, including a one-way Xmax of 9.1 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.046 cubic feet is our estimate from comparable 10 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Also: the printed Qts of 0.70 sits 6 percent from the 0.66 its own Qes and Qms reproduce. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. The cabinet depth is set by the port panel clearing the motor, not by the magnet alone.\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\u003eSkar Audio rate the VS-10 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 Skar Audio VS-10. The alignment, the port geometry and the power\n figures all come from Skar 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":47334573703257,"sku":"PO 10-P W VS10 BB","price":389.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334574194777,"sku":"PO 10-P W VS10 B","price":369.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10-P_W_VS10_Front.jpg?v=1790422987"},{"product_id":"performance-optimized-wedge-ported-12-enclosure-skar-audio-vs-12","title":"Skar Audio VS-12 Box: Ported 12\" Wedge Enclosure","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 12\" Ported\u003c\/h2\u003e\n \u003cp\u003eThe VS-12 vented at 34.0 Hz in a trunk wedge, 1.54 cubic feet and a 32.6 Hz F3\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.54 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 34.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 32.6 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eSide slot port\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eCut for the Skar Audio VS-12\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\"\u003e1.54\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\"\u003e32.6\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\"\u003e19.9\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 34.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VS-12 is Skar's 12 inch at 36.0 Hz, Qts 0.75, 34.5 litres of Vas and 9.1 mm of one-way Xmax on 531 square centimetres of cone. In the wedge it gets 1.54 cubic feet net, vented at 34.0 Hz through a 19.9 square inch triangular port, for an anechoic F3 of 32.6 Hz. The cabinet is 30 inches wide and 15.5 tall, 9.00 inches deep at the top and 14.64 at the base, and rakes back against the rear seat like every Proline X wedge.\u003c\/p\u003e\n \u003cp\u003eWith a Qts of 0.75 the VS-12 is above the 0.707 Butterworth line before it goes in any box, so no sealed cabinet makes it flat; a port is what it wants. The wedge's port runs 18.4 m\/s in the channel and 11.6 at the flared mouth at Skar's 500 W rating, with the cone peaking at 7.4 of its 9.1 mm. Passband ripple is 2.9 dB. Skar's own ported recommendation is 2.00 cubic feet at 32 Hz, before driver and port displacement.\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\u003e14.64 inches at the base, 9.00 at the top\u003c\/h4\u003e\n\u003cp\u003e30 inches wide, 15.5 tall, 9.00 inches deep at the top and 14.64 at the base, 1.54 cubic feet net. Frame 12.77 inches over a 11.04 inch cutout, 4.43 inches of mounting depth; a threaded insert kit ships, since Skar publishes no bolt circle.\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, 23.06 inches of centreline path.\u003c\/p\u003e\n \u003cp\u003eThe channel is an isosceles triangle with 6.50 inch legs, 19.9 square inches, running at\n 18.4 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 31.4 square inches and air leaves it at 11.6 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 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 Skar 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 Skar Audio's published 11.040 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\u003eSkar publishes a full Thiele-Small table for the VS-12 on its product page, including a one-way Xmax of 9.1 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.073 cubic feet is our estimate from comparable 12 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. The cabinet depth is set by the port panel clearing the motor, not by the magnet alone.\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\u003eSkar Audio rate the VS-12 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 Skar Audio VS-12. The alignment, the port geometry and the power\n figures all come from Skar 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":47334574424153,"sku":"PO 12-P W VS12 BB","price":419.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334574522457,"sku":"PO 12-P W VS12 B","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12-P_W_VS12_Front.jpg?v=1790422999"},{"product_id":"professional-series-ported-10-enclosure-skar-audio-evl-10","title":"Skar Audio EVL-10 Box: Ported 10\" Professional Series Enclosure","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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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 10\" Ported\u003c\/h2\u003e\n \u003cp\u003eOne EVL-11 in a front-firing box, vented at 33.0 Hz on a three-layer flush-mount baffle\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.96 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 33.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 27.7 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 EVL-10\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\"\u003e1.96\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\"\u003e33.0\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\"\u003e27.7\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\"\u003e34.4\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 33.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThe EVL-10 is Skar's 11 inch at 44.0 Hz, a Qts of 0.59, 6.8 litres of Vas and 1000 W RMS. This cabinet gives it 1.96 cubic feet net behind a 2.25 inch three-layer baffle, vented at 33.0 Hz through a 34.4 square inch slot beside the woofer, for an anechoic F3 of 27.7 Hz in a 30 by 14 by 17.5 inch front-firing box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the EVL-10, 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 one kit.\u003c\/p\u003e\n \u003cp\u003eSealed, the EVL-10 needs 0.55 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The slot is gated at 1200 W, 1.2 times Skar's rating: the channel runs 22.8 m\/s and the mouth 15.5, and the cone peaks at 11.7 of its 23.5 mm with the subsonic filter in place. Skar's own ported recommendation is 1.75 to 2.00 cubic feet at 40 Hz, before driver and port displacement.\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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 1200 W\u003c\/h4\u003e\n\u003cp\u003eThe 34.4 square inch slot beside the woofer is sized so the\n channel runs 22.8 metres per second and the mouth 15.5 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 11.00 inches along its wall and turns once along the back wall for another 16.21 inches, which is why a 33.0 Hz tuning fits a 17.50 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 EVL-10 did not clear the port gate there. The calmest wedge port that fits that envelope is 18.4 square inches at 27.5 by 10.88 by 15.79 inches, and its mouth runs 21.4 metres per second at 1000 W against the 17 metres per second line where a port starts to chuff. That port would stay clean to about 631 W. The slot on this box reaches 34.4 square inches and holds the mouth at 15.5 metres per second at 1200 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 4.25 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 56 lb 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\u003e30.00\" W x 14.00\" H x 17.50\" 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. Inside the 30 by 14 Professional envelope for a single 10, 17.5 inches deep. 10.89 inch frame, flush in the outer baffle layer, 9.39 inch cutout, 7.16 inches of mounting depth. It ships as a parcel.\u003c\/p\u003e\n \u003cp\u003eSkar publishes a full Thiele-Small table for the EVL-10 on its product page, including a one-way Xmax of 23.5 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.092 cubic feet is our estimate from comparable 11 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. Skar Audio does not publish the mounting hole locations for the EVL-10, 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 one kit.\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 26 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n place the cone reaches 11.7 mm of its 23.5 mm at 1200 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334575472729,"sku":"Pro 10-P EVL10","price":489.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Pro_10-P_EVL10_Front_16330332-4a70-4e39-8b4e-b4ff48dd9ca6.jpg?v=1790542980"},{"product_id":"professional-series-ported-15-enclosure-skar-audio-evl-15","title":"Skar Audio EVL-15 Box: Ported 15\" Professional Series Enclosure","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 Professional 15\" Ported\u003c\/h2\u003e\n \u003cp\u003eOne EVL-15 in a front-firing box, vented at 34.5 Hz on a three-layer flush-mount baffle\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e2.31 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 34.5 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 30.7 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 EVL-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\"\u003e2.31\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\"\u003e30.7\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 34.5 Hz\u003c\/h3\u003e\n \u003cp\u003eThe EVL-15 is Skar's 15 inch at 35.0 Hz, a Qts of 0.63, 46.0 litres of Vas and 1250 W RMS. This cabinet gives it 2.31 cubic feet net behind a 2.25 inch three-layer baffle, vented at 34.5 Hz through a 45.4 square inch slot beside the woofer, for an anechoic F3 of 30.7 Hz in a 36 by 18 by 14.2 inch front-firing box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the EVL-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 one kit.\u003c\/p\u003e\n \u003cp\u003eSealed, the EVL-15 needs 6.26 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The slot is gated at 1500 W, 1.2 times Skar's rating: the channel runs 18.9 m\/s and the mouth 13.1, and the cone peaks at 10.2 of its 23.5 mm with the subsonic filter in place. Skar's own ported recommendation is 3.50 to 3.75 cubic feet at 31 Hz, before driver and port displacement.\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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 45.4 square inch slot beside the woofer is sized so the\n channel runs 18.9 metres per second and the mouth 13.1 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 7.75 inches along its wall and turns once along the back wall for another 19.73 inches, which is why a 34.5 Hz tuning fits a 14.25 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\u003eThe EVL-15 also builds in the Performance Optimized ported wedge, the smaller and cheaper box. The Professional cabinet is the step up for it: a 2.25 inch three-layer baffle with the woofer flush in the outer layer, and a slot port gated 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 5.34 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 67 lb parcel and checkout adds nothing. The Performance Optimized 15 inch ported wedge is $499.99. The $61 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 14.25\" 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, 14.2 inches deep. 15.50 inch frame, flush in the outer baffle layer, 14.00 inch cutout, 8.54 inches of mounting depth. It ships as a parcel.\u003c\/p\u003e\n \u003cp\u003eSkar publishes a full Thiele-Small table for the EVL-15 on its product page, including a one-way Xmax of 23.5 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.204 cubic feet is our estimate from comparable 15 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Also: Skar publishes no outside frame diameter for its 15s; 15.50 inches is our estimate from the 14.00 inch cutout, and the baffle is sized with margin for it. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. Skar Audio does not publish the mounting hole locations for the EVL-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 one kit.\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 10.2 mm of its 23.5 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":47334576783449,"sku":"Pro 15-P EVL15","price":560.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Pro_15-P_EVL15_Front_9b78cc2a-2ebb-40bc-979c-301cc8f3e987.jpg?v=1790544785"},{"product_id":"professional-series-ported-10-enclosure-skar-audio-vd-10","title":"Skar Audio VD-10 Box: Ported 10\" Professional Series Enclosure","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 Professional 10\" Ported\u003c\/h2\u003e\n \u003cp\u003eOne VD-10 in a front-firing box, vented at 35.0 Hz on a three-layer flush-mount baffle\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.30 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 35.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 30.5 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 VD-10\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\"\u003e1.30\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\"\u003e35.0\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\"\u003e30.5\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\"\u003e21.9\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 35.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VD-10 is Skar's 10 inch at 42.0 Hz, a Qts of 0.47, 15.1 litres of Vas and 500 W RMS. This cabinet gives it 1.30 cubic feet net behind a 2.25 inch three-layer baffle, vented at 35.0 Hz through a 21.9 square inch slot beside the woofer, for an anechoic F3 of 30.5 Hz in a 30 by 14 by 12.4 inch front-firing box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the VD-10, 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 one kit.\u003c\/p\u003e\n \u003cp\u003eSealed, the VD-10 needs 0.42 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The slot is gated at 600 W, 1.2 times Skar's rating: the channel runs 21.3 m\/s and the mouth 12.6, and the cone peaks at 9.1 of its 11.5 mm with the subsonic filter in place. Skar's own ported recommendation is 1.25 cubic feet at 39 Hz, before driver and port displacement.\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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 600 W\u003c\/h4\u003e\n\u003cp\u003eThe 21.9 square inch slot beside the woofer is sized so the\n channel runs 21.3 metres per second and the mouth 12.6 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 6.88 inches along its wall and turns once along the back wall for another 16.82 inches, which is why a 35.0 Hz tuning fits a 12.38 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\u003eThe VD-10 also builds in the Performance Optimized ported wedge and ported down-fire, the smaller and cheaper boxes. The Professional cabinet is the step up for it: a 2.25 inch three-layer baffle with the woofer flush in the outer layer, and a slot port gated at 600 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 3.01 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 48 lb parcel and checkout adds nothing. The Performance Optimized 10 inch ported wedge is $369.99. The $39 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\u003e30.00\" W x 14.00\" H x 12.38\" 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 30 by 14 Professional envelope for a single 10, 12.4 inches deep. 10.67 inch frame, flush in the outer baffle layer, 9.35 inch cutout, 4.50 inches of mounting depth. It ships as a parcel.\u003c\/p\u003e\n \u003cp\u003eSkar publishes a full Thiele-Small table for the VD-10 on its product page, including a one-way Xmax of 11.5 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.057 cubic feet is our estimate from comparable 10 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Also: Skar leaves cone area blank on the VD, so the 326 square centimetres used here is derived from their Vas and compliance. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. Skar Audio does not publish the mounting hole locations for the VD-10, 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 one kit.\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 28 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n place the cone reaches 9.1 mm of its 11.5 mm at 600 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334577307737,"sku":"Pro 10-P VD10","price":408.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Pro_10-P_VD10_Front_66b2adb2-b91b-4369-aefc-3d461363e74d.jpg?v=1790543380"},{"product_id":"professional-series-ported-12-enclosure-skar-audio-vd-12","title":"Skar Audio VD-12 Box: Ported 12\" Professional Series Enclosure","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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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 12\" Ported\u003c\/h2\u003e\n \u003cp\u003eOne VD-12 in a front-firing box, vented at 34.0 Hz on a three-layer flush-mount baffle\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.48 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 34.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 35.8 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 VD-12\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\"\u003e1.48\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\"\u003e35.8\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\"\u003e21.8\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 34.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VD-12 is Skar's 12 inch at 35.3 Hz, a Qts of 0.55, 43.5 litres of Vas and 500 W RMS. This cabinet gives it 1.48 cubic feet net behind a 2.25 inch three-layer baffle, vented at 34.0 Hz through a 21.8 square inch slot beside the woofer, for an anechoic F3 of 35.8 Hz in a 32 by 16 by 11.2 inch front-firing box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the VD-12, 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 one kit.\u003c\/p\u003e\n \u003cp\u003eSealed, the VD-12 needs 2.35 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The slot is gated at 600 W, 1.2 times Skar's rating: the channel runs 18.5 m\/s and the mouth 10.4, and the cone peaks at 8.2 of its 11 mm with the subsonic filter in place. Skar's own ported recommendation is 1.75 cubic feet at 36 Hz, before driver and port displacement.\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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 600 W\u003c\/h4\u003e\n\u003cp\u003eThe 21.8 square inch slot beside the woofer is sized so the\n channel runs 18.5 metres per second and the mouth 10.4 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 6.00 inches along its wall and turns once along the back wall for another 15.46 inches, which is why a 34.0 Hz tuning fits a 11.25 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\u003eThe VD-12 also builds in the Performance Optimized ported wedge and ported down-fire, the smaller and cheaper boxes. The Professional cabinet is the step up for it: a 2.25 inch three-layer baffle with the woofer flush in the outer layer, and a slot port gated at 600 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 3.33 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 52 lb parcel and checkout adds nothing. The Performance Optimized 12 inch ported wedge is $399.99. The $31 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\u003e32.00\" W x 16.00\" H x 11.25\" 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 32 by 16 Professional envelope for a single 12, 11.2 inches deep. 12.60 inch frame, flush in the outer baffle layer, 11.28 inch cutout, 4.95 inches of mounting depth. It ships as a parcel.\u003c\/p\u003e\n \u003cp\u003eSkar publishes a full Thiele-Small table for the VD-12 on its product page, including a one-way Xmax of 11 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.085 cubic feet is our estimate from comparable 12 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Also: Skar leaves cone area blank on the VD, so the 505 square centimetres used here is derived from their Vas and compliance. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. Skar Audio does not publish the mounting hole locations for the VD-12, 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 one kit.\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 8.2 mm of its 11.0 mm at 600 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334577766489,"sku":"Pro 12-P VD12","price":430.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Pro_12-P_VD12_Front_91832777-cf29-4184-a93f-672d9d81c226.jpg?v=1790544240"},{"product_id":"professional-series-ported-10-enclosure-skar-audio-vs-10","title":"Skar Audio VS-10 Box: Ported 10\" Professional Series Enclosure","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 Professional 10\" Ported\u003c\/h2\u003e\n \u003cp\u003eOne VS-10 in a front-firing box, vented at 38.0 Hz on a three-layer flush-mount baffle\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e0.78 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 38.0 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 VS-10\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\"\u003e0.78\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\"\u003e38.0\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\"\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\"\u003e15.6\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 38.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VS-10 is Skar's 10 inch at 38.0 Hz, a Qts of 0.70, 16.5 litres of Vas and 500 W RMS. This cabinet gives it 0.78 cubic feet net behind a 2.25 inch three-layer baffle, vented at 38.0 Hz through a 15.6 square inch slot beside the woofer, for an anechoic F3 of 34.5 Hz in a 30 by 14 by 9.2 inch front-firing box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the VS-10, 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 one kit.\u003c\/p\u003e\n \u003cp\u003eSealed, the VS-10 needs 28.95 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The slot is gated at 600 W, 1.2 times Skar's rating: the channel runs 21.1 m\/s and the mouth 10.9, and the cone peaks at 8.1 of its 9.1 mm with the subsonic filter in place. Skar's own ported recommendation is 1.60 cubic feet at 33 Hz, before driver and port displacement.\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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 600 W\u003c\/h4\u003e\n\u003cp\u003eThe 15.6 square inch slot beside the woofer is sized so the\n channel runs 21.1 metres per second and the mouth 10.9 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 4.25 inches along its wall and turns once along the back wall for another 21.12 inches, which is why a 38.0 Hz tuning fits a 9.25 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\u003eThe VS-10 also builds in the Performance Optimized ported wedge and ported down-fire, the smaller and cheaper boxes. The Professional cabinet is the step up for it: a 2.25 inch three-layer baffle with the woofer flush in the outer layer, and a slot port gated at 600 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 2.25 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 43 lb parcel and checkout adds nothing. The Performance Optimized 10 inch ported wedge is $369.99. The $-52 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\u003e30.00\" W x 14.00\" H x 9.25\" 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 30 by 14 Professional envelope for a single 10, 9.2 inches deep. 10.67 inch frame, flush in the outer baffle layer, 9.07 inch cutout, 3.89 inches of mounting depth. It ships as a parcel.\u003c\/p\u003e\n \u003cp\u003eSkar publishes a full Thiele-Small table for the VS-10 on its product page, including a one-way Xmax of 9.1 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.046 cubic feet is our estimate from comparable 10 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Also: the printed Qts of 0.70 sits 6 percent from the 0.66 its own Qes and Qms reproduce. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. Skar Audio does not publish the mounting hole locations for the VS-10, 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 one kit.\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 30 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n place the cone reaches 8.1 mm of its 9.1 mm at 600 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334578258009,"sku":"Pro 10-P VS10","price":317.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Pro_10-P_VS10_Front_9ae57369-492d-4c92-9cae-e42364272732.jpg?v=1790543448"},{"product_id":"professional-series-ported-12-enclosure-skar-audio-vs-12","title":"Skar Audio VS-12 Box: Ported 12\" Professional Series Enclosure","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 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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 12\" Ported\u003c\/h2\u003e\n \u003cp\u003eOne VS-12 in a front-firing box, vented at 35.0 Hz on a three-layer flush-mount baffle\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.55 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 35.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 32.8 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 VS-12\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\"\u003e1.55\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\"\u003e35.0\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\"\u003e32.8\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\"\u003e21.8\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 35.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VS-12 is Skar's 12 inch at 36.0 Hz, a Qts of 0.75, 34.5 litres of Vas and 500 W RMS. This cabinet gives it 1.55 cubic feet net behind a 2.25 inch three-layer baffle, vented at 35.0 Hz through a 21.8 square inch slot beside the woofer, for an anechoic F3 of 32.8 Hz in a 32 by 16 by 11.2 inch front-firing box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the VS-12, 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 one kit.\u003c\/p\u003e\n \u003cp\u003eWith a Qts of 0.75 the VS-12 is above the 0.707 Butterworth line before it goes in any box, so no sealed cabinet makes it flat; a port is what it wants. The slot is gated at 600 W, 1.2 times Skar's rating: the channel runs 18.6 m\/s and the mouth 10.4, and the cone peaks at 7.8 of its 9.1 mm with the subsonic filter in place. Skar's own ported recommendation is 2.00 cubic feet at 32 Hz, before driver and port displacement.\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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 600 W\u003c\/h4\u003e\n\u003cp\u003eThe 21.8 square inch slot beside the woofer is sized so the\n channel runs 18.6 metres per second and the mouth 10.4 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 6.00 inches along its wall and turns once along the back wall for another 12.47 inches, which is why a 35.0 Hz tuning fits a 11.25 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\u003eThe VS-12 also builds in the Performance Optimized ported wedge and ported down-fire, the smaller and cheaper boxes. The Professional cabinet is the step up for it: a 2.25 inch three-layer baffle with the woofer flush in the outer layer, and a slot port gated at 600 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 3.33 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 51 lb parcel and checkout adds nothing. The Performance Optimized 12 inch ported wedge is $399.99. The $31 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\u003e32.00\" W x 16.00\" H x 11.25\" 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 32 by 16 Professional envelope for a single 12, 11.2 inches deep. 12.77 inch frame, flush in the outer baffle layer, 11.04 inch cutout, 4.43 inches of mounting depth. It ships as a parcel.\u003c\/p\u003e\n \u003cp\u003eSkar publishes a full Thiele-Small table for the VS-12 on its product page, including a one-way Xmax of 9.1 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.073 cubic feet is our estimate from comparable 12 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. Skar Audio does not publish the mounting hole locations for the VS-12, 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 one kit.\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 28 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n place the cone reaches 7.8 mm of its 9.1 mm at 600 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334578552921,"sku":"Pro 12-P VS12","price":430.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Pro_12-P_VS12_Front_bc2fbe6d-83c0-44ce-b417-0a4a95ce8285.jpg?v=1790544261"},{"product_id":"professional-series-ported-12-enclosure-skar-audio-vxf-12","title":"Skar Audio VXF-12 Box: Ported 12\" Professional Series Enclosure","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 Professional 12\" Ported\u003c\/h2\u003e\n \u003cp\u003eOne VXF-12 in a front-firing box, vented at 34.5 Hz on a three-layer flush-mount baffle\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e2.49 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 34.5 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 29.7 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 VXF-12\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\"\u003e2.49\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\"\u003e29.7\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\"\u003e50.8\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 34.5 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VXF-12 is Skar's 12 inch at 32.1 Hz, a Qts of 0.32, 35.4 litres of Vas and 1500 W RMS. This cabinet gives it 2.49 cubic feet net behind a 2.25 inch three-layer baffle, vented at 34.5 Hz through a 50.8 square inch slot beside the woofer, for an anechoic F3 of 29.7 Hz in a 32 by 16 by 18.5 inch front-firing box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the VXF-12, 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 one kit.\u003c\/p\u003e\n \u003cp\u003eSealed, the VXF-12 needs 0.32 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The slot is gated at 1800 W, 1.2 times Skar's rating: the channel runs 22.7 m\/s and the mouth 16.5, and the cone peaks at 13.3 of its 25 mm with the subsonic filter in place. Skar's own ported recommendation is 1.80 to 2.00 cubic feet at 33 Hz, before driver and port displacement.\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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 50.8 square inch slot beside the woofer is sized so the\n channel runs 22.7 metres per second and the mouth 16.5 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 11.25 inches along its wall and turns once along the back wall for another 16.76 inches, which is why a 34.5 Hz tuning fits a 18.50 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 VXF-12 did not clear the port gate there. The calmest wedge port that fits that envelope is 24.7 square inches at 28.5 by 11.75 by 17.39 inches, and its mouth runs 23.7 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 770 W. The slot on this box reaches 50.8 square inches and holds the mouth at 16.5 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 5.48 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 65 lb 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\u003e32.00\" W x 16.00\" H x 18.50\" 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. Inside the 32 by 16 Professional envelope for a single 12, 18.5 inches deep. 12.50 inch frame, flush in the outer baffle layer, 11.02 inch cutout, 8.50 inches of mounting depth. It ships as a parcel.\u003c\/p\u003e\n \u003cp\u003eSkar publishes a full Thiele-Small table for the VXF-12 on its product page, including a one-way Xmax of 25 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.139 cubic feet is our estimate from comparable 12 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. The slot mouth runs 16.5 m\/s at the gate power against a 17 m\/s limit, so this is a box to run at its rating, not past it. Skar Audio does not publish the mounting hole locations for the VXF-12, 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 one kit.\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 13.3 mm of its 25.0 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":47334579470425,"sku":"Pro 12-P VXF12","price":568.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Pro_12-P_VXF12_Front_d4297eaf-9f17-4f18-af42-7d342102dad4.jpg?v=1790544315"},{"product_id":"professional-series-ported-15-enclosure-skar-audio-vxf-15","title":"Skar Audio VXF-15 Box: Ported 15\" Professional Series Enclosure","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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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\u003eOne VXF-15 in a front-firing box, vented at 33.5 Hz on a three-layer flush-mount baffle\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e2.75 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 33.5 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 31.2 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 VXF-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\"\u003e2.75\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\"\u003e31.2\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 33.5 Hz\u003c\/h3\u003e\n \u003cp\u003eThe VXF-15 is Skar's 15 inch at 31.4 Hz, a Qts of 0.36, 76.8 litres of Vas and 1500 W RMS. This cabinet gives it 2.75 cubic feet net behind a 2.25 inch three-layer baffle, vented at 33.5 Hz through a 53.6 square inch slot beside the woofer, for an anechoic F3 of 31.2 Hz in a 36 by 18 by 16.4 inch front-firing box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the VXF-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 one kit.\u003c\/p\u003e\n \u003cp\u003eSealed, the VXF-15 needs 0.95 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The slot is gated at 1800 W, 1.2 times Skar's rating: the channel runs 21.0 m\/s and the mouth 15.2, and the cone peaks at 11.6 of its 30 mm with the subsonic filter in place. Skar's own ported recommendation is 3.25 cubic feet at 32 Hz, before driver and port displacement.\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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 21.0 metres per second and the mouth 15.2 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 9.38 inches along its wall and turns once along the back wall for another 19.10 inches, which is why a 33.5 Hz tuning fits a 16.38 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 VXF-15 did not clear the port gate there. The calmest wedge port that fits that envelope is 26.4 square inches at 24.0 by 11.12 by 17.86 inches, and its mouth runs 21.3 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 957 W. The slot on this box reaches 53.6 square inches and holds the mouth at 15.2 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 6.14 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 71 lb 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\u003e36.00\" W x 18.00\" H x 16.38\" 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, 16.4 inches deep. 15.36 inch frame, flush in the outer baffle layer, 13.86 inch cutout, 9.78 inches of mounting depth. It ships as a parcel.\u003c\/p\u003e\n \u003cp\u003eSkar publishes a full Thiele-Small table for the VXF-15 on its product page, including a one-way Xmax of 30 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.229 cubic feet is our estimate from comparable 15 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Also: Skar publishes no outside frame diameter for its 15s; 15.36 inches is our estimate from the 13.86 inch cutout, and the baffle is sized with margin for it. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. Skar Audio does not publish the mounting hole locations for the VXF-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 one kit.\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 26 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n place the cone reaches 11.6 mm of its 30.0 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":47334580093017,"sku":"Pro 15-P VXF15","price":610.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Pro_15-P_VXF15_Front_1ed136b9-ea9a-4514-b455-ac706fd602c5.jpg?v=1790544997"},{"product_id":"professional-series-ported-12-enclosure-skar-audio-zvx-12v2","title":"Skar Audio ZVX-12v2 Box: Ported 12\" Professional Series Enclosure","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 12\" Ported\u003c\/h2\u003e\n \u003cp\u003eOne ZVX-12v2 in a front-firing box, vented at 36.5 Hz on a three-layer flush-mount baffle\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e2.07 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 36.5 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 32.0 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 ZVX-12v2\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\"\u003e2.07\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\"\u003e32.0\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\"\u003e43.5\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 36.5 Hz\u003c\/h3\u003e\n \u003cp\u003eThe ZVX-12v2 is Skar's 12 inch at 44.0 Hz, a Qts of 0.45, 25.6 litres of Vas and 1500 W RMS. This cabinet gives it 2.07 cubic feet net behind a 2.25 inch three-layer baffle, vented at 36.5 Hz through a 43.5 square inch slot beside the woofer, for an anechoic F3 of 32.0 Hz in a 32 by 16 by 16.0 inch front-firing box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the ZVX-12v2, 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 one kit.\u003c\/p\u003e\n \u003cp\u003eSealed, the ZVX-12v2 needs 0.62 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The slot is gated at 1800 W, 1.2 times Skar's rating: the channel runs 24.1 m\/s and the mouth 16.9, and the cone peaks at 12.8 of its 29 mm with the subsonic filter in place. Skar's own ported recommendation is 3.00 cubic feet at 34 Hz, before driver and port displacement.\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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 43.5 square inch slot beside the woofer is sized so the\n channel runs 24.1 metres per second and the mouth 16.9 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 9.25 inches along its wall and turns once along the back wall for another 16.56 inches, which is why a 36.5 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 ZVX-12v2 did not clear the port gate there. The calmest wedge port that fits that envelope is 18.4 square inches at 21.0 by 12.12 by 17.77 inches, and its mouth runs 26.4 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 623 W. The slot on this box reaches 43.5 square inches and holds the mouth at 16.9 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 4.74 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 60 lb 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\u003e32.00\" W x 16.00\" 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 32 by 16 Professional envelope for a single 12, 16.0 inches deep. 12.62 inch frame, flush in the outer baffle layer, 11.25 inch cutout, 9.89 inches of mounting depth. It ships as a parcel.\u003c\/p\u003e\n \u003cp\u003eSkar publishes a full Thiele-Small table for the ZVX-12v2 on its product page, including a one-way Xmax of 29 mm. Some of it is softer than it looks. Skar gives no driver displacement anywhere, so 0.168 cubic feet is our estimate from comparable 12 inch woofers; it moves the tuning by a fraction of a hertz. Skar does not say how the Xmax was measured, so we size port and power against it rather than past it. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement. The slot mouth runs 16.9 m\/s at the gate power against a 17 m\/s limit, so this is a box to run at its rating, not past it. Skar Audio does not publish the mounting hole locations for the ZVX-12v2, 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 one kit.\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 29 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n place the cone reaches 12.8 mm of its 29.0 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":47334580682841,"sku":"Pro 12-P ZVX12V2","price":521.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Pro_12-P_ZVX12V2_Front_2f7f2ede-c0cc-4ad7-b1eb-38957309b5ec.jpg?v=1790544441"},{"product_id":"professional-series-ported-dual-12-enclosure-skar-audio-evl-12","title":"Skar Audio EVL-12 Dual Box: Ported 12\" Professional Series Enclosure","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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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 12\" Ported\u003c\/h2\u003e\n \u003cp\u003eA ported twelve inch box for a pair of EVL-12, one shared chamber vented at 35.0 Hz\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e3.13 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 35.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 29.3 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 EVL-12\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\"\u003e3.13\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\"\u003e35.0\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\"\u003e29.3\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\"\u003e72.5\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 35.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThis cabinet holds two EVL-12 in 3.131 cubic feet net, vented at 35.0 Hz through a 72.5 square inch port. F3 lands at 29.3 Hz with 4.10 dB of passband ripple. It measures 42.00 inches wide, 16.00 tall and 18.50 deep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the EVL-12, 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 72.5 square inches of area at 35.0 Hz, and the design power for the velocity and excursion checks is 3000 W for the pair. Passband ripple holds at 4.10 dB across the tuning, with F3 at 29.3 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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 72.5 square inch slot beside the woofer is sized so the\n channel runs 21.7 metres per second and the mouth 16.9 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 9.75 inches along its wall and turns once along the back wall for another 19.80 inches, which is why a 35.0 Hz tuning fits a 18.50 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 EVL-12 did not clear the port gate there. The calmest wedge port that fits that envelope is 24.7 square inches at 27.5 by 10.88 by 16.52 inches, and its mouth runs 20.2 metres per second at 1250 W against the 17 metres per second line where a port starts to chuff. That port would stay clean to about 887 W. The slot on this box reaches 72.5 square inches and holds the mouth at 16.9 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 7.19 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 73 lb parcel and checkout adds nothing.\u003c\/p\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat Skar Audio recommend\u003c\/h4\u003e\n\u003cp\u003eSkar Audio publish a vented box for the Skar Audio EVL-12 at 2.00 cubic feet net, tuned to 32.0 Hz. This cabinet holds 3.13 cubic feet net and tunes to 35.0 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\u003e42.00\" W x 16.00\" H x 18.50\" 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 12 inch Professional envelope, built around the EVL-12'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 16.9 m\/s against the 17 m\/s point where a slot begins to chuff, and 21.7 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. Skar Audio does not publish the mounting hole locations for the EVL-12, 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 28 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n place the cone reaches 9.1 mm of its 23.5 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":47334581633113,"sku":"Pro 12D-P EVL12","price":683.99,"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_67be79b6-9d25-4cb4-8ec0-33d5d3fdbff7.jpg?v=1790422519"},{"product_id":"professional-series-ported-dual-15-enclosure-skar-audio-evl-15","title":"Skar Audio EVL-15 Dual Box: Ported 15\" Professional Series Enclosure","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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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 EVL-15, one shared chamber vented at 34.0 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 34.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 34.4 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 EVL-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\"\u003e3.41\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\"\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\"\u003e34.4\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\"\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 34.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThis cabinet holds two EVL-15 in 3.406 cubic feet net, vented at 34.0 Hz through a 61.9 square inch port. F3 lands at 34.4 Hz with 1.96 dB of passband ripple. It measures 46.00 inches wide, 18.00 tall and 15.12 deep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the EVL-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 61.9 square inches of area at 34.0 Hz, and the design power for the velocity and excursion checks is 3000 W for the pair. Passband ripple holds at 1.96 dB across the tuning, with F3 at 34.4 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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 61.9 square inch slot beside the woofer is sized so the\n channel runs 21.6 metres per second and the mouth 16.0 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 7.62 inches along its wall and turns once along the back wall for another 15.86 inches, which is why a 34.0 Hz tuning fits a 15.12 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\u003eA single EVL-15 also builds in the Performance Optimized ported wedge, the smaller and cheaper single-driver box. A pair takes this Professional cabinet: one shared chamber on a 2.25 inch three-layer baffle with both woofers flush in the outer layer, and a slot port gated at 3000 W for the pair.\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 7.25 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 73 lb 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\u003e46.00\" W x 18.00\" H x 15.12\" 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 EVL-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 16.0 m\/s against the 17 m\/s point where a slot begins to chuff, and 21.6 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. Skar Audio does not publish the mounting hole locations for the EVL-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 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 9.0 mm of its 23.5 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":47334582059097,"sku":"Pro 15D-P EVL15","price":687.99,"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_d186ca00-da25-4592-bf7f-496d390c524c.jpg?v=1790422531"},{"product_id":"professional-series-ported-dual-10-enclosure-skar-audio-vd-10","title":"Skar Audio VD-10 Dual Box: Ported 10\" Professional Series Enclosure","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 Professional 10\" Ported\u003c\/h2\u003e\n \u003cp\u003eA ported ten inch box for a pair of VD-10, one shared chamber vented at 35.0 Hz\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.44 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 35.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 35.3 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 VD-10\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\"\u003e1.44\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\"\u003e35.0\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\"\u003e35.3\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\"\u003e28.1\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 35.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThis cabinet holds two VD-10 in 1.442 cubic feet net, vented at 35.0 Hz through a 28.1 square inch port. F3 lands at 35.3 Hz with 0.01 dB of passband ripple. It measures 36.00 inches wide, 14.00 tall and 12.25 deep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the VD-10, 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 28.1 square inches of area at 35.0 Hz, and the design power for the velocity and excursion checks is 1200 W for the pair. Passband ripple holds at 0.01 dB across the tuning, with F3 at 35.3 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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 1200 W\u003c\/h4\u003e\n\u003cp\u003eThe 28.1 square inch slot beside the woofer is sized so the\n channel runs 22.5 metres per second and the mouth 14.4 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 6.25 inches along its wall and turns once along the back wall for another 21.81 inches, which is why a 35.0 Hz tuning fits a 12.25 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\u003eA single VD-10 also builds in the Performance Optimized ported wedge and ported down-fire, the smaller and cheaper single-driver boxes. A pair takes this Professional cabinet: one shared chamber on a 2.25 inch three-layer baffle with both woofers flush in the outer layer, and a slot port gated at 1200 W for the pair.\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 3.57 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 51 lb 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\u003e36.00\" W x 14.00\" H x 12.25\" 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 10 inch Professional envelope, built around the VD-10'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 14.4 m\/s against the 17 m\/s point where a slot begins to chuff, and 22.5 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. Skar Audio does not publish the mounting hole locations for the VD-10, 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 28 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n place the cone reaches 8.1 mm of its 11.5 mm at 1200 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334582550617,"sku":"Pro 10D-P VD10","price":444.99,"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_076ca6a4-72ff-46f9-8ae0-3ed655524392.jpg?v=1790422546"},{"product_id":"professional-series-ported-dual-12-enclosure-skar-audio-vd-12","title":"Skar Audio VD-12 Dual Box: Ported 12\" Professional Series Enclosure","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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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 12\" Ported\u003c\/h2\u003e\n \u003cp\u003eA ported twelve inch box for a pair of VD-12, one shared chamber vented at 34.0 Hz\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e2.86 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 34.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 36.5 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 VD-12\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\"\u003e2.86\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\"\u003e36.5\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\"\u003e36.2\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\u003eThis cabinet holds two VD-12 in 2.857 cubic feet net, vented at 34.0 Hz through a 36.2 square inch port. F3 lands at 36.5 Hz with 1.11 dB of passband ripple. It measures 40.00 inches wide, 16.00 tall and 14.25 deep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the VD-12, 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 36.2 square inches of area at 34.0 Hz, and the design power for the velocity and excursion checks is 1200 W for the pair. Passband ripple holds at 1.11 dB across the tuning, with F3 at 36.5 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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 1200 W\u003c\/h4\u003e\n\u003cp\u003eThe 36.2 square inch slot beside the woofer is sized so the\n channel runs 21.6 metres per second and the mouth 14.4 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 8.00 inches along its wall and turns once along the back wall for another 6.89 inches, which is why a 34.0 Hz tuning fits a 14.25 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\u003eA single VD-12 also builds in the Performance Optimized ported wedge and ported down-fire, the smaller and cheaper single-driver boxes. A pair takes this Professional cabinet: one shared chamber on a 2.25 inch three-layer baffle with both woofers flush in the outer layer, and a slot port gated at 1200 W for the pair.\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 5.28 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 60 lb 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\u003e40.00\" W x 16.00\" H x 14.25\" 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 12 inch Professional envelope, built around the VD-12'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 14.4 m\/s against the 17 m\/s point where a slot begins to chuff, and 21.6 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. Skar Audio does not publish the mounting hole locations for the VD-12, 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 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 11.0 mm at 1200 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334583140441,"sku":"Pro 12D-P VD12","price":553.99,"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_aa78ebc2-6c4d-4b5b-86b8-0250786b8871.jpg?v=1790422561"},{"product_id":"professional-series-ported-dual-10-enclosure-skar-audio-vs-10","title":"Skar Audio VS-10 Dual Box: Ported 10\" Professional Series Enclosure","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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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 10\" Ported\u003c\/h2\u003e\n \u003cp\u003eA ported ten inch box for a pair of VS-10, one shared chamber vented at 36.5 Hz\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e1.33 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 36.5 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 36.6 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 VS-10\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\"\u003e1.33\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\"\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\"\u003e36.6\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\"\u003e25.0\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\u003eThis cabinet holds two VS-10 in 1.330 cubic feet net, vented at 36.5 Hz through a 25.0 square inch port. F3 lands at 36.6 Hz with 2.31 dB of passband ripple. It measures 36.00 inches wide, 14.00 tall and 11.12 deep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the VS-10, 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 25.0 square inches of area at 36.5 Hz, and the design power for the velocity and excursion checks is 1200 W for the pair. Passband ripple holds at 2.31 dB across the tuning, with F3 at 36.6 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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 1200 W\u003c\/h4\u003e\n\u003cp\u003eThe 25.0 square inch slot beside the woofer is sized so the\n channel runs 22.6 metres per second and the mouth 14.0 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 5.38 inches along its wall and turns once along the back wall for another 18.87 inches, which is why a 36.5 Hz tuning fits a 11.12 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\u003eA single VS-10 also builds in the Performance Optimized ported wedge and ported down-fire, the smaller and cheaper single-driver boxes. A pair takes this Professional cabinet: one shared chamber on a 2.25 inch three-layer baffle with both woofers flush in the outer layer, and a slot port gated at 1200 W for the pair.\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 3.24 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 48 lb 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\u003e36.00\" W x 14.00\" H x 11.12\" 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 10 inch Professional envelope, built around the VS-10'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 14.0 m\/s against the 17 m\/s point where a slot begins to chuff, and 22.6 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. Skar Audio does not publish the mounting hole locations for the VS-10, 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 29 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n place the cone reaches 7.8 mm of its 9.1 mm at 1200 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334583631961,"sku":"Pro 10D-P VS10","price":423.99,"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_2b2851fb-c52e-4f81-a6eb-9f6ecdada109.jpg?v=1790422576"},{"product_id":"professional-series-ported-dual-12-enclosure-skar-audio-vs-12","title":"Skar Audio VS-12 Dual Box: Ported 12\" Professional Series Enclosure","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 Professional 12\" Ported\u003c\/h2\u003e\n \u003cp\u003eA ported twelve inch box for a pair of VS-12, one shared chamber vented at 35.0 Hz\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e3.14 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 35.0 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 32.6 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 VS-12\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\"\u003e3.14\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\"\u003e35.0\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\"\u003e32.6\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\"\u003e36.2\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 35.0 Hz\u003c\/h3\u003e\n \u003cp\u003eThis cabinet holds two VS-12 in 3.139 cubic feet net, vented at 35.0 Hz through a 36.2 square inch port. F3 lands at 32.6 Hz with 3.10 dB of passband ripple. It measures 40.00 inches wide, 16.00 tall and 14.75 deep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the VS-12, 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 36.2 square inches of area at 35.0 Hz, and the design power for the velocity and excursion checks is 1200 W for the pair. Passband ripple holds at 3.10 dB across the tuning, with F3 at 32.6 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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 1200 W\u003c\/h4\u003e\n\u003cp\u003eThe 36.2 square inch slot beside the woofer is sized so the\n channel runs 22.5 metres per second and the mouth 15.1 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 2.65 inches, which is why a 35.0 Hz tuning fits a 14.75 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\u003eA single VS-12 also builds in the Performance Optimized ported wedge and ported down-fire, the smaller and cheaper single-driver boxes. A pair takes this Professional cabinet: one shared chamber on a 2.25 inch three-layer baffle with both woofers flush in the outer layer, and a slot port gated at 1200 W for the pair.\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 5.46 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 60 lb 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\u003e40.00\" W x 16.00\" H x 14.75\" 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 12 inch Professional envelope, built around the VS-12'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 15.1 m\/s against the 17 m\/s point where a slot begins to chuff, and 22.5 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. Skar Audio does not publish the mounting hole locations for the VS-12, 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 28 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n place the cone reaches 7.8 mm of its 9.1 mm at 1200 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47334584025177,"sku":"Pro 12D-P VS12","price":565.99,"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_73e15873-10e1-4622-ad7e-13db7c2b5a00.jpg?v=1790422590"},{"product_id":"professional-series-ported-dual-15-enclosure-skar-audio-vxf-15","title":"Skar Audio VXF-15 Dual Box: Ported 15\" Professional Series Enclosure","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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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 VXF-15, one shared chamber vented at 30.5 Hz\u003c\/p\u003e\n \u003cdiv class=\"df-badges\"\u003e\n \u003cspan class=\"df-badge\"\u003e3.37 cu ft net\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eTuned 30.5 Hz\u003c\/span\u003e\n \u003cspan class=\"df-badge\"\u003eF3 39.2 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 VXF-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\"\u003e3.37\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\"\u003e30.5\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\"\u003e39.2\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 30.5 Hz\u003c\/h3\u003e\n \u003cp\u003eThis cabinet holds two VXF-15 in 3.368 cubic feet net, vented at 30.5 Hz through a 66.0 square inch port. F3 lands at 39.2 Hz with 0.05 dB of passband ripple. It measures 45.00 inches wide, 18.00 tall and 17.00 deep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThreaded insert kit ships with this box.\u003c\/strong\u003e Skar Audio does not publish the mounting hole locations for the VXF-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 66.0 square inches of area at 30.5 Hz, and the design power for the velocity and excursion checks is 3600 W for the pair. Passband ripple holds at 0.05 dB across the tuning, with F3 at 39.2 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\u003eSkar Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the Skar 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 66.0 square inch slot beside the woofer is sized so the\n channel runs 22.1 metres per second and the mouth 16.6 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 9.25 inches along its wall and turns once along the back wall for another 26.36 inches, which is why a 30.5 Hz tuning fits a 17.00 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 VXF-15 did not clear the port gate there. The calmest wedge port that fits that envelope is 26.4 square inches at 24.0 by 11.12 by 17.86 inches, and its mouth runs 21.3 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 957 W. The slot on this box reaches 66.0 square inches and holds the mouth at 16.6 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 7.97 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 79 lb 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\u003e45.00\" W x 18.00\" H x 17.00\" 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 VXF-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 16.6 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. Skar Audio does not publish the mounting hole locations for the VXF-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 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 10.5 mm of its 30.0 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":47334584418393,"sku":"Pro 15D-P VXF15","price":737.99,"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_3a73eba2-5e85-49ce-9275-58ef56d31c58.jpg?v=1790422606"},{"product_id":"performance-optimized-wedge-sealed-dual-10-enclosure-skar-audio-evl-10","title":"Skar Audio EVL-10 Dual Box: Sealed 10\" Wedge Enclosure","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 | Dual Skar Audio EVL-10\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003eDual 10\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e0.65 ft3 Net per Chamber\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.53 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.69\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eTwo Separate Chambers\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e26.05\" x 15\" x 8.60\/14.06\"\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 Skar EVL-10 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe EVL-10 is Skar Audio's 10 inch: 1000 watts RMS, 23.5 mm of one-way excursion on 314 square centimeters of cone, and 7.16 inches of mounting depth. Every figure comes from the Thiele-Small table Skar prints on its EVL-10 product page. Skar publishes no driver displacement, so 0.092 cubic feet is our estimate from comparable 10 inch woofers, and it moves the net figure by a few hundredths at most.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e0.65 cubic feet net per chamber is split between the coils' Butterworth volumes (0.55 for the D2, 0.76 for the D4) on the D2 figures, Fs 44.0 Hz, Qts 0.59 and Vas 6.8 liters: Qtc 0.690, half power at 52.8 Hz. One cabinet serves both coils: the EVL-10 D2 reads Qtc 0.690 with half power at 52.8 Hz, and the D4 reads Qtc 0.721 at 51.3 Hz. Skar's own recommended sealed volume is 1.25 to 1.5 cubic feet, which reads Qtc 0.64 on the D2 and 0.67 on the D4.\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 bonded full-height 3\/4 inch MDF divider splits the cabinet into two sealed chambers of 0.65 cubic feet net each, so every driver sees exactly the airspace printed on this page. Two drivers sharing one volume load each other; the divider removes that, and each chamber carries its own polyfill.\u003c\/p\u003e\n\u003cp\u003eThe cabinet is 26.05 inches wide, 15 tall, 8.60 inches deep at the top and 14.06 at the base. One shared side-mounted terminal cup feeds both driver positions.\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 drivers 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 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 a pair of Skar EVL-10\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 52.8 Hz anechoic on the D2, before any cabin gain. Driver displacement is not published, so an estimated 0.092 cubic feet is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers (Per Chamber)\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver (per chamber)\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.690\u003c\/td\u003e\n\u003ctd\u003e51.5 Hz\u003c\/td\u003e\n\u003ctd\u003e52.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.721\u003c\/td\u003e\n\u003ctd\u003e52.3 Hz\u003c\/td\u003e\n\u003ctd\u003e51.3 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eThe baffle is cut to 9.39 in, Skar's published cutout, under the 10.89 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 8.60 in at the top to 14.06 in at the base, and the 7.16 in motor clears it with 0.75 in to spare. Skar prints no bolt circle for the EVL-10, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down.\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 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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar's Published Parameters\u003c\/h4\u003e\n\u003cp\u003eD2: Fs 44.0 Hz, Qts 0.59, Qes 0.66, Qms 5.44, Vas 6.8 L, Sd 314 cm2, Cms 0.048 mm\/N, Bl 20.9 N\/A, Mms 259 g. D4: Fs 45.0 Hz, Qts 0.62, Qes 0.69, Qms 5.21, Vas 6.5 L, Sd 314 cm2, Cms 0.046 mm\/N, Bl 12.3 N\/A, Mms 243 g.\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 Skar EVL-10 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eA pair of EVL-10 D2 drivers can land on 0.5 ohm with all four coils in parallel, 2 ohms as series pairs in parallel, or 8 ohms all in series. A pair of EVL-10 D4 drivers can land on 1 ohm with all four coils in parallel, 4 ohms as series pairs in parallel, or 16 ohms all in series. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the final load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1000 watts RMS per driver, 2000 across the pair. Aim for roughly 700 to 1000 watts per driver 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 with the gloss black acrylic baffle insert, one shared pre-wired terminal cup, 12 gauge OFC to both driver positions. Polyfill wall lining installed. Threaded insert kit and stainless machine screws in the box. 1 year limited warranty. Enclosure only, the drivers are purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDual Skar Audio EVL-10: Cut for the Driver\u003c\/h2\u003e\n\u003cp\u003e0.65 cubic feet net per chamber at Qtc 0.690, F3 52.8 Hz on the D2, 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":47334585008217,"sku":"PO 10D-S W EVL10 BB","price":349.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334585073753,"sku":"PO 10D-S W EVL10 B","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10D-S_W_EVL10_Front.jpg?v=1790423117"},{"product_id":"performance-optimized-down-fire-sealed-10-enclosure-skar-audio-evl-10","title":"Skar Audio EVL-10 Box: Sealed 10\" Down Fire Enclosure","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:#3d2412;color:#e8b98d}.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(184,115,51,.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\u003cdiv class=\"df-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Down Fire 10\" Sealed\u003c\/h2\u003e\n\u003cp\u003eCut and tuned for the Skar EVL-10\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\"\u003e1.28 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\"\u003e1.28\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\"\u003e0.643\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\"\u003e53.2 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff, anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e8.66 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\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.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003eA shared 30 by 15 inch platform, with cabinet height as the variable. This build sits on that platform at 8.66 inches tall, the height its 7.16 inch motor needs.\u003c\/td\u003e\n\u003ctd\u003eCompact per driver footprint.\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\"\u003eThreaded insert kit and stainless machine screws included; Skar prints no bolt circle, so you mark and drill from the driver.\u003c\/td\u003e\n\u003ctd\u003eThreaded 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\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 driver's own 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 Skar EVL-10\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffle is cut to 9.39 in, Skar's published cutout, under the 10.89 in frame. The airspace lands on \u003cstrong\u003e1.28 cubic feet net\u003c\/strong\u003e, the volume the cabinet reaches at the height the 7.16 inch motor requires.\u003c\/p\u003e\n\u003cp\u003eThe EVL-10 is Skar Audio's 10 inch, rated \u003cstrong\u003e1000 watts RMS\u003c\/strong\u003e, with 23.5 mm of one-way excursion. It is 7.16 inches deep, which matters on a down fire, where the motor rises into the cabinet. Every figure comes from the Thiele-Small table Skar prints on its EVL-10 product page. Skar publishes no driver displacement, so 0.092 cubic feet is our estimate from comparable 10 inch woofers, and it moves the net figure by a few hundredths at most.\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\u003e1.28 cubic feet net\u003c\/strong\u003e, out of 1.38 gross after the brace and an estimated 0.092 cubic foot driver displacement. The EVL-10's 7.16 inch mounting depth sets this cabinet's minimum height on the 30 by 15 platform, and the airspace comes with it: 1.28 cubic feet. The result is Qtc 0.643 with half power at 53.2 Hz on the D2, a gentle rolloff rather than a flat one. One cabinet serves both coils: the EVL-10 D2 reads Qtc 0.643 with half power at 53.2 Hz, and the D4 reads Qtc 0.673 at 51.4 Hz.\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 displacement (an estimate here, since Skar publishes none), not guessed from external dimensions minus wall thickness.\u003c\/p\u003e\u003c\/div\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.643\u003c\/td\u003e\n\u003ctd\u003e48.0 Hz\u003c\/td\u003e\n\u003ctd\u003e53.2 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.673\u003c\/td\u003e\n\u003ctd\u003e48.9 Hz\u003c\/td\u003e\n\u003ctd\u003e51.4 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\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. Every panel joint is a machined interlocking groove that mechanically locks before adhesive is applied, which keeps the cabinet airtight under sustained pressure cycling. Corners are square on Down Fire cabinets.\u003c\/p\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e30.00 inches wide by 15.00 inches deep by 8.66 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: the standoffs hold 1.75 inches under the baffle, so the finished stack sits near \u003cstrong\u003e10.41 inches\u003c\/strong\u003e.\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\u003eSkar publishes no front clearance figure for the EVL-10, so this cabinet uses the Proline X standard \u003cstrong\u003e1.75 inch\u003c\/strong\u003e standoff, shipped with every enclosure and left uninstalled so you can place them to suit your floor. At that height the floor slot is 1.06 times the cone area, enough for this driver.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eMotor Clearance and Orientation\u003c\/h3\u003e\n\u003cp\u003eThe motor rises off the baffle into the cavity, so on a down fire cabinet the clearance that matters runs to the top panel. The 7.16 inch mounting depth puts the motor 5.66 inches into a 6.41 inch cavity, leaving \u003cstrong\u003e0.75 inches above the motor\u003c\/strong\u003e against a 0.75 inch minimum. Height was set by that clearance, not by the airspace: the volume alone would have allowed a lower box.\u003c\/p\u003e\n\u003cp\u003eSkar does not publish a position on down firing this driver, and this cabinet makes no claim on their behalf. The feet ship uninstalled, so if you would rather run it front firing or up firing, that is a decision you can make at install time without changing anything about the enclosure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003ePower, Mounting and Warranty\u003c\/h3\u003e\n\u003cp\u003eSkar rates the EVL-10 at \u003cstrong\u003e1000 watts RMS\u003c\/strong\u003e. The EVL-10 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. The EVL-10 D4 wires to 8 ohms in series or 2 ohms in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003eSkar prints no bolt circle for the EVL-10, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down. The enclosure carries a 1 year limited warranty. Bring your own EVL-10; the driver is purchased separately.\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\u003eBuilt one at a time in Tullahoma, Tennessee, with standoffs and a 1 year limited warranty. 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":"Default Title","offer_id":47334585466969,"sku":"PO 10-S DF EVL10","price":259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10-S_DF_EVL10_Front.jpg?v=1790422626"},{"product_id":"performance-optimized-down-fire-sealed-dual-10-enclosure-skar-audio-evl-10","title":"Skar Audio EVL-10 Dual Box: Sealed 10\" Down Fire Enclosure","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%,#5c3317 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 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14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#3d2412;color:#e8b98d}.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(184,115,51,.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\u003cdiv class=\"df-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Down Fire Dual 10\" Sealed\u003c\/h2\u003e\n\u003cp\u003eCut and tuned for a pair of Skar EVL-10\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\"\u003e1.30 cu ft Net Total\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eSeparate Chambers\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\"\u003e0.65\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net per chamber\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 per chamber\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e52.8 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff, anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e9.35 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\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.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003eA shared 30 by 15 inch platform, with cabinet height as the variable. This build sits on that platform at 9.35 inches tall, the height that gives each driver its own 0.65 cubic feet.\u003c\/td\u003e\n\u003ctd\u003eCompact per driver footprint.\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\"\u003eThreaded insert kit and stainless machine screws included; Skar prints no bolt circle, so you mark and drill from the driver.\u003c\/td\u003e\n\u003ctd\u003eThreaded 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, full-height divider and 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\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 driver's own 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 a Pair of Skar EVL-10\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffle is cut to 9.39 in, Skar's published cutout, under the 10.89 in frame. The airspace lands on \u003cstrong\u003e0.65 cubic feet net per chamber\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe EVL-10 is Skar Audio's 10 inch, rated \u003cstrong\u003e1000 watts RMS\u003c\/strong\u003e, with 23.5 mm of one-way excursion. It is 7.16 inches deep, which matters on a down fire, where the motor rises into the cabinet. Every figure comes from the Thiele-Small table Skar prints on its EVL-10 product page. Skar publishes no driver displacement, so 0.092 cubic feet is our estimate from comparable 10 inch woofers, and it moves the net figure by a few hundredths at most.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eTwo Chambers, Not One Volume\u003c\/h3\u003e\n\u003cp\u003eThis enclosure follows the Proline X standing rule for dual sealed builds: \u003cstrong\u003etwo fully separate chambers\u003c\/strong\u003e split by a bonded full height 3\/4 inch MDF divider, each driver in its own 0.65 cubic feet with its own polyfill.\u003c\/p\u003e\n\u003cp\u003eTwo drivers sharing one sealed volume interact acoustically. Each driver's compression phase becomes the pressure environment the other is working against, which smears transient response and blurs the alignment either would have on its own. A full divider removes that entirely. One shared side mounted terminal cup feeds both driver positions, so the cabinet stays a single connection point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eNet Volume, Not Gross\u003c\/h3\u003e\n\u003cp\u003eEach chamber is built at \u003cstrong\u003e0.65 cubic feet net per driver\u003c\/strong\u003e, out of 1.53 gross after the divider and an estimated 0.092 cubic foot driver displacement. At 0.65 cubic feet per chamber the EVL-10 D2 lands at Qtc 0.690 with half power at 52.8 Hz. One cabinet serves both coils: the EVL-10 D2 reads Qtc 0.690 with half power at 52.8 Hz, and the D4 reads Qtc 0.721 at 51.3 Hz. Skar's own recommended sealed volume is 1.25 to 1.5 cubic feet, which reads Qtc 0.64 on the D2 and 0.67 on the D4.\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 displacement (an estimate here, since Skar publishes none), not guessed from external dimensions minus wall thickness.\u003c\/p\u003e\u003c\/div\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver (per chamber)\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.690\u003c\/td\u003e\n\u003ctd\u003e51.5 Hz\u003c\/td\u003e\n\u003ctd\u003e52.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.721\u003c\/td\u003e\n\u003ctd\u003e52.3 Hz\u003c\/td\u003e\n\u003ctd\u003e51.3 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\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. Every panel joint is a machined interlocking groove that mechanically locks before adhesive is applied, which keeps the cabinet airtight under sustained pressure cycling. Corners are square on Down Fire cabinets.\u003c\/p\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e30.00 inches wide by 15.00 inches deep by 9.35 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: the standoffs hold 1.75 inches under the baffle, so the finished stack sits near \u003cstrong\u003e11.10 inches\u003c\/strong\u003e.\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 to both driver positions. 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\u003eSkar publishes no front clearance figure for the EVL-10, so this cabinet uses the Proline X standard \u003cstrong\u003e1.75 inch\u003c\/strong\u003e standoff, shipped with every enclosure and left uninstalled so you can place them to suit your floor. At that height the floor slot is 1.06 times the cone area, enough for this driver.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eMotor Clearance and Orientation\u003c\/h3\u003e\n\u003cp\u003eThe motors rise off the baffle into the cavity, so on a down fire cabinet the clearance that matters runs to the top panel. The 7.16 inch mounting depth puts the motor 5.66 inches into a 7.10 inch cavity, leaving \u003cstrong\u003e1.44 inches above the motor\u003c\/strong\u003e against a 0.75 inch minimum. Height was set by the airspace, above the minimum the clearance alone would have required.\u003c\/p\u003e\n\u003cp\u003eSkar does not publish a position on down firing this driver, and this cabinet makes no claim on their behalf. The feet ship uninstalled, so if you would rather run it front firing or up firing, that is a decision you can make at install time without changing anything about the enclosure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003ePower, Mounting and Warranty\u003c\/h3\u003e\n\u003cp\u003eSkar rates the EVL-10 at \u003cstrong\u003e1000 watts RMS\u003c\/strong\u003e, 2000 watts RMS combined. A pair of EVL-10 D2 drivers can land on 0.5 ohm with all four coils in parallel, 2 ohms as series pairs in parallel, or 8 ohms all in series. A pair of EVL-10 D4 drivers can land on 1 ohm with all four coils in parallel, 4 ohms as series pairs in parallel, or 16 ohms all in series. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003eSkar prints no bolt circle for the EVL-10, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down. The enclosure carries a 1 year limited warranty. Bring your own pair of EVL-10; the drivers are purchased separately.\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\u003eBuilt one at a time in Tullahoma, Tennessee, with standoffs and a 1 year limited warranty. 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":"Default Title","offer_id":47334585958489,"sku":"PO 10D-S DF EVL10","price":309.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10D-S_DF_EVL10_Front.jpg?v=1790422643"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-skar-audio-evl-12","title":"Skar Audio EVL-12 Box: Sealed 12\" Wedge Enclosure","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 | Skar Audio EVL-12\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e12\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e0.72 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e0.86 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.63\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e15.00\" x 15\" x 9.05\/14.51\"\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 Skar EVL-12 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe EVL-12 is Skar Audio's 12 inch: 1250 watts RMS, 23.5 mm of one-way excursion on 471 square centimeters of cone, and 7.61 inches of mounting depth. Every figure comes from the Thiele-Small table Skar prints on its EVL-12 product page. Skar publishes no driver displacement, so 0.129 cubic feet is our estimate from comparable 12 inch woofers, and it moves the net figure by a few hundredths at most. Worth knowing: the D4's printed Qts of 0.46 sits 9 percent from the 0.50 its own Qes and Qms reproduce; the D2's printed Qts of 0.42 sits 10 percent from the 0.46 its own Qes and Qms reproduce, so treat the Qtc as good to a few hundredths.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e0.72 cubic feet net is the smallest box that carries the EVL-12 frame, already under the Butterworth volume on the D4 figures, Fs 32.6 Hz, Qts 0.46 and Vas 18.2 liters: Qtc 0.634, half power at 50.7 Hz. One cabinet serves both coils: the EVL-12 D4 reads Qtc 0.634 with half power at 50.7 Hz, and the D2 reads Qtc 0.585 at 56.1 Hz. Skar's own recommended sealed volume is 1.75 cubic feet, which reads Qtc 0.54 on the D4 and 0.49 on the D2.\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 Skar EVL-12\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 50.7 Hz anechoic on the D4, before any cabin gain. Driver displacement is not published, so an estimated 0.129 cubic feet is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-12 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.634\u003c\/td\u003e\n\u003ctd\u003e44.9 Hz\u003c\/td\u003e\n\u003ctd\u003e50.7 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-12 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.585\u003c\/td\u003e\n\u003ctd\u003e44.9 Hz\u003c\/td\u003e\n\u003ctd\u003e56.1 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eThe baffle is cut to 11.22 in, Skar's published cutout, under the 12.50 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 9.05 in at the top to 14.51 in at the base, and the 7.61 in motor clears it with 0.75 in to spare. Skar prints no bolt circle for the EVL-12, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down.\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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar's Published Parameters\u003c\/h4\u003e\n\u003cp\u003eD4: Fs 32.6 Hz, Qts 0.46, Qes 0.56, Qms 5.00, Vas 18.2 L, Sd 471 cm2, Cms 0.059 mm\/N, Bl 12.8 N\/A, Mms 256 g. D2: Fs 32.2 Hz, Qts 0.42, Qes 0.51, Qms 4.83, Vas 19.1 L, Sd 471 cm2, Cms 0.060 mm\/N, Bl 27.0 N\/A, Mms 261 g.\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 Skar EVL-12 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe EVL-12 D4 wires to 8 ohms in series or 2 ohms in parallel. The EVL-12 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the final load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1250 watts RMS per driver. Aim for roughly 875 to 1250 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 with the gloss black acrylic baffle insert, one pre-wired terminal cup, 12 gauge OFC to the driver position. Polyfill wall lining installed. Threaded insert kit and stainless machine screws in the box. 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\u003eSkar Audio EVL-12: Cut for the Driver\u003c\/h2\u003e\n\u003cp\u003e0.72 cubic feet net at Qtc 0.634, F3 50.7 Hz on the D4, 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":47334586646617,"sku":"PO 12-S W EVL12 BB","price":319.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334586744921,"sku":"PO 12-S W EVL12 B","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12-S_W_EVL12_Front.jpg?v=1790423126"},{"product_id":"performance-optimized-wedge-sealed-dual-12-enclosure-skar-audio-evl-12","title":"Skar Audio EVL-12 Dual Box: Sealed 12\" Wedge Enclosure","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 | Dual Skar Audio EVL-12\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003eDual 12\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e0.79 ft3 Net per Chamber\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.89 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.62\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eTwo Separate Chambers\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e28.25\" x 16\" x 8.86\/14.68\"\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 Skar EVL-12 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe EVL-12 is Skar Audio's 12 inch: 1250 watts RMS, 23.5 mm of one-way excursion on 471 square centimeters of cone, and 7.61 inches of mounting depth. Every figure comes from the Thiele-Small table Skar prints on its EVL-12 product page. Skar publishes no driver displacement, so 0.129 cubic feet is our estimate from comparable 12 inch woofers, and it moves the net figure by a few hundredths at most. Worth knowing: the D4's printed Qts of 0.46 sits 9 percent from the 0.50 its own Qes and Qms reproduce; the D2's printed Qts of 0.42 sits 10 percent from the 0.46 its own Qes and Qms reproduce, so treat the Qtc as good to a few hundredths.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e0.79 cubic feet net per chamber is the smallest box that carries the EVL-12 frame, already under the Butterworth volume on the D4 figures, Fs 32.6 Hz, Qts 0.46 and Vas 18.2 liters: Qtc 0.619, half power at 51.0 Hz. One cabinet serves both coils: the EVL-12 D4 reads Qtc 0.619 with half power at 51.0 Hz, and the D2 reads Qtc 0.572 at 56.5 Hz. Skar's own recommended sealed volume is 1.75 cubic feet, which reads Qtc 0.54 on the D4 and 0.49 on the D2.\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 bonded full-height 3\/4 inch MDF divider splits the cabinet into two sealed chambers of 0.79 cubic feet net each, so every driver sees exactly the airspace printed on this page. Two drivers sharing one volume load each other; the divider removes that, and each chamber carries its own polyfill.\u003c\/p\u003e\n\u003cp\u003eThe cabinet is 28.25 inches wide, 16 tall, 8.86 inches deep at the top and 14.68 at the base. One shared side-mounted terminal cup feeds both driver positions.\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 drivers 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 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 a pair of Skar EVL-12\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 51.0 Hz anechoic on the D4, before any cabin gain. Driver displacement is not published, so an estimated 0.129 cubic feet is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers (Per Chamber)\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver (per chamber)\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-12 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.619\u003c\/td\u003e\n\u003ctd\u003e43.9 Hz\u003c\/td\u003e\n\u003ctd\u003e51.0 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-12 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.572\u003c\/td\u003e\n\u003ctd\u003e43.8 Hz\u003c\/td\u003e\n\u003ctd\u003e56.5 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eThe baffle is cut to 11.22 in, Skar's published cutout, under the 12.50 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 8.86 in at the top to 14.68 in at the base, and the 7.61 in motor clears it with 0.75 in to spare. Skar prints no bolt circle for the EVL-12, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down.\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 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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar's Published Parameters\u003c\/h4\u003e\n\u003cp\u003eD4: Fs 32.6 Hz, Qts 0.46, Qes 0.56, Qms 5.00, Vas 18.2 L, Sd 471 cm2, Cms 0.059 mm\/N, Bl 12.8 N\/A, Mms 256 g. D2: Fs 32.2 Hz, Qts 0.42, Qes 0.51, Qms 4.83, Vas 19.1 L, Sd 471 cm2, Cms 0.060 mm\/N, Bl 27.0 N\/A, Mms 261 g.\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 Skar EVL-12 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eA pair of EVL-12 D4 drivers can land on 1 ohm with all four coils in parallel, 4 ohms as series pairs in parallel, or 16 ohms all in series. A pair of EVL-12 D2 drivers can land on 0.5 ohm with all four coils in parallel, 2 ohms as series pairs in parallel, or 8 ohms all in series. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the final load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1250 watts RMS per driver, 2500 across the pair. Aim for roughly 875 to 1250 watts per driver 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 with the gloss black acrylic baffle insert, one shared pre-wired terminal cup, 12 gauge OFC to both driver positions. Polyfill wall lining installed. Threaded insert kit and stainless machine screws in the box. 1 year limited warranty. Enclosure only, the drivers are purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eDual Skar Audio EVL-12: Cut for the Driver\u003c\/h2\u003e\n\u003cp\u003e0.79 cubic feet net per chamber at Qtc 0.619, F3 51.0 Hz on the D4, 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":47334587105369,"sku":"PO 12D-S W EVL12 BB","price":389.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334587203673,"sku":"PO 12D-S W EVL12 B","price":369.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12D-S_W_EVL12_Front.jpg?v=1790423135"},{"product_id":"performance-optimized-down-fire-sealed-12-enclosure-skar-audio-evl-12","title":"Skar Audio EVL-12 Box: Sealed 12\" Down Fire Enclosure","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica 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class=\"df-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Down Fire 12\" Sealed\u003c\/h2\u003e\n\u003cp\u003eCut and tuned for the Skar EVL-12\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\"\u003e1.33 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\"\u003e1.33\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\"\u003e0.560\u003c\/span\u003e\u003cspan class=\"l\"\u003esystem Qtc, D4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e52.6 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff, anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e9.11 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\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.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003eA shared 30 by 15 inch platform, with cabinet height as the variable. This build sits on that platform at 9.11 inches tall, the height its 7.61 inch motor needs.\u003c\/td\u003e\n\u003ctd\u003eCompact per driver footprint.\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\"\u003eThreaded insert kit and stainless machine screws included; Skar prints no bolt circle, so you mark and drill from the driver.\u003c\/td\u003e\n\u003ctd\u003eThreaded 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\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 driver's own 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 Skar EVL-12\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffle is cut to 11.22 in, Skar's published cutout, under the 12.50 in frame. The airspace lands on \u003cstrong\u003e1.33 cubic feet net\u003c\/strong\u003e, the volume the cabinet reaches at the height the 7.61 inch motor requires.\u003c\/p\u003e\n\u003cp\u003eThe EVL-12 is Skar Audio's 12 inch, rated \u003cstrong\u003e1250 watts RMS\u003c\/strong\u003e, with 23.5 mm of one-way excursion. It is 7.61 inches deep, which matters on a down fire, where the motor rises into the cabinet. Every figure comes from the Thiele-Small table Skar prints on its EVL-12 product page. Skar publishes no driver displacement, so 0.129 cubic feet is our estimate from comparable 12 inch woofers, and it moves the net figure by a few hundredths at most. Worth knowing: the D4's printed Qts of 0.46 sits 9 percent from the 0.50 its own Qes and Qms reproduce; the D2's printed Qts of 0.42 sits 10 percent from the 0.46 its own Qes and Qms reproduce, so treat the Qtc as good to a few hundredths.\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\u003e1.33 cubic feet net\u003c\/strong\u003e, out of 1.47 gross after the brace and an estimated 0.129 cubic foot driver displacement. The EVL-12's 7.61 inch mounting depth sets this cabinet's minimum height on the 30 by 15 platform, and the airspace comes with it: 1.33 cubic feet. The result is Qtc 0.560 with half power at 52.6 Hz on the D4, a gentle rolloff rather than a flat one. One cabinet serves both coils: the EVL-12 D4 reads Qtc 0.560 with half power at 52.6 Hz, and the D2 reads Qtc 0.515 at 58.8 Hz.\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 displacement (an estimate here, since Skar publishes none), not guessed from external dimensions minus wall thickness.\u003c\/p\u003e\u003c\/div\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-12 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.560\u003c\/td\u003e\n\u003ctd\u003e39.7 Hz\u003c\/td\u003e\n\u003ctd\u003e52.6 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-12 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.515\u003c\/td\u003e\n\u003ctd\u003e39.5 Hz\u003c\/td\u003e\n\u003ctd\u003e58.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\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. Every panel joint is a machined interlocking groove that mechanically locks before adhesive is applied, which keeps the cabinet airtight under sustained pressure cycling. Corners are square on Down Fire cabinets.\u003c\/p\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e30.00 inches wide by 15.00 inches deep by 9.11 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: the standoffs hold 1.75 inches under the baffle, so the finished stack sits near \u003cstrong\u003e10.86 inches\u003c\/strong\u003e.\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\u003eSkar publishes no front clearance figure for the EVL-12, so this cabinet uses the Proline X standard \u003cstrong\u003e1.75 inch\u003c\/strong\u003e standoff, shipped with every enclosure and left uninstalled so you can place them to suit your floor. At that height the floor slot is 0.84 times the cone area, under the 1.0 we aim for. The 23.5 mm of excursion on this cone moves a lot of air, so if the floor allows, taller feet or a front-firing install give it more room.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eMotor Clearance and Orientation\u003c\/h3\u003e\n\u003cp\u003eThe motor rises off the baffle into the cavity, so on a down fire cabinet the clearance that matters runs to the top panel. The 7.61 inch mounting depth puts the motor 6.11 inches into a 6.86 inch cavity, leaving \u003cstrong\u003e0.75 inches above the motor\u003c\/strong\u003e against a 0.75 inch minimum. Height was set by that clearance, not by the airspace: the volume alone would have allowed a lower box.\u003c\/p\u003e\n\u003cp\u003eSkar does not publish a position on down firing this driver, and this cabinet makes no claim on their behalf. The feet ship uninstalled, so if you would rather run it front firing or up firing, that is a decision you can make at install time without changing anything about the enclosure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003ePower, Mounting and Warranty\u003c\/h3\u003e\n\u003cp\u003eSkar rates the EVL-12 at \u003cstrong\u003e1250 watts RMS\u003c\/strong\u003e. The EVL-12 D4 wires to 8 ohms in series or 2 ohms in parallel. The EVL-12 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003eSkar prints no bolt circle for the EVL-12, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down. The enclosure carries a 1 year limited warranty. Bring your own EVL-12; the driver is purchased separately.\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\u003eBuilt one at a time in Tullahoma, Tennessee, with standoffs and a 1 year limited warranty. 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":"Default Title","offer_id":47334587629657,"sku":"PO 12-S DF EVL12","price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12-S_DF_EVL12_Front.jpg?v=1790422682"},{"product_id":"performance-optimized-down-fire-sealed-dual-12-enclosure-skar-audio-evl-12","title":"Skar Audio EVL-12 Dual Box: Sealed 12\" Down Fire Enclosure","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%,#5c3317 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 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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:#d99058;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#5c3317 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:#3d2412;color:#e8b98d}.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(184,115,51,.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\u003cdiv class=\"df-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Down Fire Dual 12\" Sealed\u003c\/h2\u003e\n\u003cp\u003eCut and tuned for a pair of Skar EVL-12\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\"\u003e1.18 cu ft Net Total\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eSeparate Chambers\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\"\u003e0.59\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net per chamber\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e0.666\u003c\/span\u003e\u003cspan class=\"l\"\u003esystem Qtc, D4 per chamber\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e50.3 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff, anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e9.11 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\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.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003eA shared 30 by 15 inch platform, with cabinet height as the variable. This build sits on that platform at 9.11 inches tall, the height its 7.61 inch motor needs.\u003c\/td\u003e\n\u003ctd\u003eCompact per driver footprint.\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\"\u003eThreaded insert kit and stainless machine screws included; Skar prints no bolt circle, so you mark and drill from the driver.\u003c\/td\u003e\n\u003ctd\u003eThreaded 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, full-height divider and 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\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 driver's own 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 a Pair of Skar EVL-12\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffle is cut to 11.22 in, Skar's published cutout, under the 12.50 in frame. The airspace lands on \u003cstrong\u003e0.59 cubic feet net per chamber\u003c\/strong\u003e, the volume the cabinet reaches at the height the 7.61 inch motor requires.\u003c\/p\u003e\n\u003cp\u003eThe EVL-12 is Skar Audio's 12 inch, rated \u003cstrong\u003e1250 watts RMS\u003c\/strong\u003e, with 23.5 mm of one-way excursion. It is 7.61 inches deep, which matters on a down fire, where the motor rises into the cabinet. Every figure comes from the Thiele-Small table Skar prints on its EVL-12 product page. Skar publishes no driver displacement, so 0.129 cubic feet is our estimate from comparable 12 inch woofers, and it moves the net figure by a few hundredths at most. Worth knowing: the D4's printed Qts of 0.46 sits 9 percent from the 0.50 its own Qes and Qms reproduce; the D2's printed Qts of 0.42 sits 10 percent from the 0.46 its own Qes and Qms reproduce, so treat the Qtc as good to a few hundredths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eTwo Chambers, Not One Volume\u003c\/h3\u003e\n\u003cp\u003eThis enclosure follows the Proline X standing rule for dual sealed builds: \u003cstrong\u003etwo fully separate chambers\u003c\/strong\u003e split by a bonded full height 3\/4 inch MDF divider, each driver in its own 0.59 cubic feet with its own polyfill.\u003c\/p\u003e\n\u003cp\u003eTwo drivers sharing one sealed volume interact acoustically. Each driver's compression phase becomes the pressure environment the other is working against, which smears transient response and blurs the alignment either would have on its own. A full divider removes that entirely. One shared side mounted terminal cup feeds both driver positions, so the cabinet stays a single connection point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eNet Volume, Not Gross\u003c\/h3\u003e\n\u003cp\u003eEach chamber is built at \u003cstrong\u003e0.59 cubic feet net per driver\u003c\/strong\u003e, out of 1.47 gross after the divider and an estimated 0.129 cubic foot driver displacement. The EVL-12's 7.61 inch mounting depth sets this cabinet's minimum height on the 30 by 15 platform, and the airspace comes with it: 0.59 cubic feet per chamber. The result is Qtc 0.666 with half power at 50.3 Hz on the D4, a gentle rolloff rather than a flat one. One cabinet serves both coils: the EVL-12 D4 reads Qtc 0.666 with half power at 50.3 Hz, and the D2 reads Qtc 0.615 at 55.2 Hz.\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 displacement (an estimate here, since Skar publishes none), not guessed from external dimensions minus wall thickness.\u003c\/p\u003e\u003c\/div\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver (per chamber)\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-12 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.666\u003c\/td\u003e\n\u003ctd\u003e47.2 Hz\u003c\/td\u003e\n\u003ctd\u003e50.3 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-12 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.615\u003c\/td\u003e\n\u003ctd\u003e47.2 Hz\u003c\/td\u003e\n\u003ctd\u003e55.2 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\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. Every panel joint is a machined interlocking groove that mechanically locks before adhesive is applied, which keeps the cabinet airtight under sustained pressure cycling. Corners are square on Down Fire cabinets.\u003c\/p\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e30.00 inches wide by 15.00 inches deep by 9.11 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: the standoffs hold 1.75 inches under the baffle, so the finished stack sits near \u003cstrong\u003e10.86 inches\u003c\/strong\u003e.\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 to both driver positions. 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\u003eSkar publishes no front clearance figure for the EVL-12, so this cabinet uses the Proline X standard \u003cstrong\u003e1.75 inch\u003c\/strong\u003e standoff, shipped with every enclosure and left uninstalled so you can place them to suit your floor. At that height the floor slot is 0.84 times the cone area, under the 1.0 we aim for. The 23.5 mm of excursion on this cone moves a lot of air, so if the floor allows, taller feet or a front-firing install give it more room.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eMotor Clearance and Orientation\u003c\/h3\u003e\n\u003cp\u003eThe motors rise off the baffle into the cavity, so on a down fire cabinet the clearance that matters runs to the top panel. The 7.61 inch mounting depth puts the motor 6.11 inches into a 6.86 inch cavity, leaving \u003cstrong\u003e0.75 inches above the motor\u003c\/strong\u003e against a 0.75 inch minimum. Height was set by that clearance, not by the airspace: the volume alone would have allowed a lower box.\u003c\/p\u003e\n\u003cp\u003eSkar does not publish a position on down firing this driver, and this cabinet makes no claim on their behalf. The feet ship uninstalled, so if you would rather run it front firing or up firing, that is a decision you can make at install time without changing anything about the enclosure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003ePower, Mounting and Warranty\u003c\/h3\u003e\n\u003cp\u003eSkar rates the EVL-12 at \u003cstrong\u003e1250 watts RMS\u003c\/strong\u003e, 2500 watts RMS combined. A pair of EVL-12 D4 drivers can land on 1 ohm with all four coils in parallel, 4 ohms as series pairs in parallel, or 16 ohms all in series. A pair of EVL-12 D2 drivers can land on 0.5 ohm with all four coils in parallel, 2 ohms as series pairs in parallel, or 8 ohms all in series. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003eSkar prints no bolt circle for the EVL-12, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down. The enclosure carries a 1 year limited warranty. Bring your own pair of EVL-12; the drivers are purchased separately.\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\u003eBuilt one at a time in Tullahoma, Tennessee, with standoffs and a 1 year limited warranty. 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":"Default Title","offer_id":47334588121177,"sku":"PO 12D-S DF EVL12","price":339.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12D-S_DF_EVL12_Front.jpg?v=1790422699"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-skar-audio-evl-15","title":"Skar Audio EVL-15 Box: Sealed 15\" Wedge Enclosure","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 | Skar Audio EVL-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\"\u003e3.00 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e3.22 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.78\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e29.50\" x 18\" x 12.21\/18.76\"\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 Skar EVL-15 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe EVL-15 is Skar Audio's 15 inch: 1250 watts RMS, 23.5 mm of one-way excursion on 779 square centimeters of cone, and 8.54 inches of mounting depth. Every figure comes from the Thiele-Small table Skar prints on its EVL-15 product page. Skar publishes no driver displacement, so 0.204 cubic feet is our estimate from comparable 15 inch woofers, and it moves the net figure by a few hundredths at most.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e3.00 cubic feet net is the volume this cabinet is built to on the D2 figures, Fs 35.0 Hz, Qts 0.63 and Vas 46.0 liters: Qtc 0.782, half power at 39.7 Hz. The EVL-15 D4 is not offered in this box: its printed Qts of 0.79 reads Qtc 0.96 at 3.0 cubic feet, boomy rather than tight. Skar's own recommended sealed volume is 3 to 3.25 cubic feet, which reads Qtc 0.78 on the D2.\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 Skar EVL-15\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 39.7 Hz anechoic on the D2, before any cabin gain. Driver displacement is not published, so an estimated 0.204 cubic feet is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-15 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.782\u003c\/td\u003e\n\u003ctd\u003e43.5 Hz\u003c\/td\u003e\n\u003ctd\u003e39.7 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eThe baffle is cut to 14.00 in, Skar's published cutout. Skar publishes no outside frame diameter for its 15s, so the flush recess is sized to 15.50 in with margin. The rear panel rakes 20 degrees, so the cavity deepens from 12.21 in at the top to 18.76 in at the base, and the 8.54 in motor clears it with 3.56 in to spare. Skar prints no bolt circle for the EVL-15, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down.\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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar's Published Parameters\u003c\/h4\u003e\n\u003cp\u003eD2: Fs 35.0 Hz, Qts 0.63, Qes 0.73, Qms 4.60, Vas 46.0 L, Sd 779 cm2, Cms 0.053 mm\/N, Bl 21.0 N\/A, Mms 387 g.\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 Skar EVL-15 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe EVL-15 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the final load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1250 watts RMS per driver. Aim for roughly 875 to 1250 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 with the gloss black acrylic baffle insert, one pre-wired terminal cup, 12 gauge OFC to the driver position. Polyfill wall lining installed. Threaded insert kit and stainless machine screws in the box. 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\u003eSkar Audio EVL-15: Cut for the Driver\u003c\/h2\u003e\n\u003cp\u003e3.00 cubic feet net at Qtc 0.782, F3 39.7 Hz on the D2, 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":47334588874841,"sku":"PO 15-S W EVL15 BB","price":489.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334588973145,"sku":"PO 15-S W EVL15 B","price":469.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_EVL15_Front.jpg?v=1790423144"},{"product_id":"performance-optimized-wedge-sealed-10-enclosure-skar-audio-vd-10","title":"Skar Audio VD-10 Box: Sealed 10\" Wedge Enclosure","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 | Skar Audio VD-10\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e10\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e0.42 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e0.49 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.71\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e15.37\" x 13\" x 6.34\/11.07\"\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 Skar VD-10 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe VD-10 is Skar Audio's 10 inch: 500 watts RMS, 11.5 mm of one-way excursion on 326 square centimeters of cone, and 4.50 inches of mounting depth. Every figure comes from the Thiele-Small table Skar prints on its VD-10 product page. Skar publishes no driver displacement, so 0.057 cubic feet is our estimate from comparable 10 inch woofers, and it moves the net figure by a few hundredths at most. Worth knowing: Skar leaves cone area blank on the VD, so the 326 square centimetres here is derived from their Vas and compliance, so treat the Qtc as good to a few hundredths.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e0.42 cubic feet net is the Butterworth volume on the D2 figures, Fs 42.0 Hz, Qts 0.47 and Vas 15.1 liters: Qtc 0.707, half power at 63.2 Hz. This box is for the VD-10 D2. The D4's lower Qts dries it out: in the same cabinet it reads Qtc 0.66 with half power near 72 Hz, so we do not recommend it here. Skar's own recommended sealed volume is 0.65 cubic feet, which reads Qtc 0.63 on the D2.\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 Skar VD-10\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 63.2 Hz anechoic on the D2, before any cabin gain. Driver displacement is not published, so an estimated 0.057 cubic feet is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVD-10 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.707\u003c\/td\u003e\n\u003ctd\u003e63.2 Hz\u003c\/td\u003e\n\u003ctd\u003e63.2 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eThe baffle is cut to 9.35 in, Skar's published cutout, under the 10.67 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 6.34 in at the top to 11.07 in at the base, and the 4.50 in motor clears it with 0.75 in to spare. Skar prints no bolt circle for the VD-10, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down.\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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar's Published Parameters\u003c\/h4\u003e\n\u003cp\u003eD2: Fs 42.0 Hz, Qts 0.47, Qes 0.53, Qms 4.55, Vas 15.1 L, Sd 326 cm2 (derived), Cms 0.100 mm\/N, Bl 15.8 N\/A.\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 Skar VD-10 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe VD-10 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the final load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003ePower handling is 500 watts RMS per driver. Aim for roughly 350 to 500 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 with the gloss black acrylic baffle insert, one pre-wired terminal cup, 12 gauge OFC to the driver position. Polyfill wall lining installed. Threaded insert kit and stainless machine screws in the box. 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\u003eSkar Audio VD-10: Cut for the Driver\u003c\/h2\u003e\n\u003cp\u003e0.42 cubic feet net at Qtc 0.707, F3 63.2 Hz on the D2, 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":47334589333593,"sku":"PO 10-S W VD10 BB","price":269.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334589431897,"sku":"PO 10-S W VD10 B","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10-S_W_VD10_Front.jpg?v=1790423154"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-skar-audio-vd-12","title":"Skar Audio VD-12 Box: Sealed 12\" Wedge Enclosure","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 | Skar Audio VD-12\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e12\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.00 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.10 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.88\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e25.41\" x 15\" x 6.39\/11.85\"\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 Skar VD-12 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe VD-12 is Skar Audio's 12 inch: 500 watts RMS, 11 mm of one-way excursion on 505 square centimeters of cone, and 4.95 inches of mounting depth. Every figure comes from the Thiele-Small table Skar prints on its VD-12 product page. Skar publishes no driver displacement, so 0.085 cubic feet is our estimate from comparable 12 inch woofers, and it moves the net figure by a few hundredths at most. Worth knowing: Skar leaves cone area blank on the VD, so the 505 square centimetres here is derived from their Vas and compliance, so treat the Qtc as good to a few hundredths.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.00 cubic feet net is the volume this cabinet is built to on the D2 figures, Fs 35.3 Hz, Qts 0.55 and Vas 43.5 liters: Qtc 0.876, half power at 47.4 Hz. This box is for the VD-12 D2. The D4's higher Qts reads Qtc 0.96 in the same 1.00 cubic feet, boomy rather than tight, so we do not recommend it here. That is Skar's own recommended sealed volume for the VD-12. It reads Qtc 0.88 on the D2, above the 0.707 of a maximally flat alignment, so expect a mild lift near 56 Hz rather than a flat rolloff.\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 Skar VD-12\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 47.4 Hz anechoic on the D2, before any cabin gain. Driver displacement is not published, so an estimated 0.085 cubic feet is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVD-12 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.876\u003c\/td\u003e\n\u003ctd\u003e56.2 Hz\u003c\/td\u003e\n\u003ctd\u003e47.4 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eThe baffle is cut to 11.28 in, Skar's published cutout, under the 12.60 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 6.39 in at the top to 11.85 in at the base, and the 4.95 in motor clears it with 0.75 in to spare. Skar prints no bolt circle for the VD-12, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down.\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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar's Published Parameters\u003c\/h4\u003e\n\u003cp\u003eD2: Fs 35.3 Hz, Qts 0.55, Qes 0.62, Qms 4.42, Vas 43.5 L, Sd 505 cm2 (derived), Cms 0.120 mm\/N, Bl 15.6 N\/A.\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 Skar VD-12 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe VD-12 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the final load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003ePower handling is 500 watts RMS per driver. Aim for roughly 350 to 500 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 with the gloss black acrylic baffle insert, one pre-wired terminal cup, 12 gauge OFC to the driver position. Polyfill wall lining installed. Threaded insert kit and stainless machine screws in the box. 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\u003eSkar Audio VD-12: Cut for the Driver\u003c\/h2\u003e\n\u003cp\u003e1.00 cubic feet net at Qtc 0.876, F3 47.4 Hz on the D2, 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":47334589825113,"sku":"PO 12-S W VD12 BB","price":319.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334589923417,"sku":"PO 12-S W VD12 B","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12-S_W_VD12_Front_c682cc11-fd05-4f45-b791-653789224916.jpg?v=1790446280"},{"product_id":"performance-optimized-down-fire-sealed-12-enclosure-skar-audio-vd-12","title":"Skar Audio VD-12 Box: Sealed 12\" Down Fire Enclosure","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:#3d2412;color:#e8b98d}.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(184,115,51,.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\u003cdiv class=\"df-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Down Fire 12\" Sealed\u003c\/h2\u003e\n\u003cp\u003eCut and tuned for the Skar VD-12\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\"\u003e1.00 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\"\u003e1.00\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\"\u003e0.876\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\"\u003e47.4 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff, anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e7.34 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\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.\u003c\/td\u003e\n\u003ctd class=\"on\"\u003eA shared 30 by 15 inch platform, with cabinet height as the variable. This build sits on that platform at 7.34 inches tall, the height that holds 1.00 cubic feet.\u003c\/td\u003e\n\u003ctd\u003eCompact per driver footprint.\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\"\u003eThreaded insert kit and stainless machine screws included; Skar prints no bolt circle, so you mark and drill from the driver.\u003c\/td\u003e\n\u003ctd\u003eThreaded 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\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 driver's own 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 Skar VD-12\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffle is cut to 11.28 in, Skar's published cutout, under the 12.60 in frame. The airspace lands on \u003cstrong\u003e1.00 cubic feet net\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe VD-12 is Skar Audio's 12 inch, rated \u003cstrong\u003e500 watts RMS\u003c\/strong\u003e, with 11 mm of one-way excursion. It is 4.95 inches deep, which matters on a down fire, where the motor rises into the cabinet. Every figure comes from the Thiele-Small table Skar prints on its VD-12 product page. Skar publishes no driver displacement, so 0.085 cubic feet is our estimate from comparable 12 inch woofers, and it moves the net figure by a few hundredths at most. Worth knowing: Skar leaves cone area blank on the VD, so the 505 square centimetres here is derived from their Vas and compliance, so treat the Qtc as good to a few hundredths.\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\u003e1.00 cubic feet net\u003c\/strong\u003e, out of 1.09 gross after the brace and an estimated 0.085 cubic foot driver displacement. At 1.00 cubic feet the VD-12 D2 lands at Qtc 0.876 with half power at 47.4 Hz. The VD-12 D4 fits the same cut; on Skar's published D4 set (Fs 36.6 Hz, Qts 0.60, Vas 44.3 liters) it lands at Qtc 0.961 with half power at 46.9 Hz, a livelier alignment than the D2. That is Skar's own recommended sealed volume for the VD-12. It reads Qtc 0.88 on the D2 and 0.96 on the D4, above the 0.707 of a maximally flat alignment, so expect a mild lift near 56 Hz (59 Hz on the D4) rather than a flat rolloff.\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 displacement (an estimate here, since Skar publishes none), not guessed from external dimensions minus wall thickness.\u003c\/p\u003e\u003c\/div\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVD-12 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.876\u003c\/td\u003e\n\u003ctd\u003e56.2 Hz\u003c\/td\u003e\n\u003ctd\u003e47.4 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVD-12 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.961\u003c\/td\u003e\n\u003ctd\u003e58.6 Hz\u003c\/td\u003e\n\u003ctd\u003e46.9 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\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. Every panel joint is a machined interlocking groove that mechanically locks before adhesive is applied, which keeps the cabinet airtight under sustained pressure cycling. Corners are square on Down Fire cabinets.\u003c\/p\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e30.00 inches wide by 15.00 inches deep by 7.34 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: the standoffs hold 1.75 inches under the baffle, so the finished stack sits near \u003cstrong\u003e9.09 inches\u003c\/strong\u003e.\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\u003eSkar publishes no front clearance figure for the VD-12, so this cabinet uses the Proline X standard \u003cstrong\u003e1.75 inch\u003c\/strong\u003e standoff, shipped with every enclosure and left uninstalled so you can place them to suit your floor. At that height the floor slot is 0.79 times the cone area, under the 1.0 we aim for. The 11 mm of excursion on this cone moves a lot of air, so if the floor allows, taller feet or a front-firing install give it more room.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eMotor Clearance and Orientation\u003c\/h3\u003e\n\u003cp\u003eThe motor rises off the baffle into the cavity, so on a down fire cabinet the clearance that matters runs to the top panel. The 4.95 inch mounting depth puts the motor 3.45 inches into a 5.09 inch cavity, leaving \u003cstrong\u003e1.64 inches above the motor\u003c\/strong\u003e against a 0.75 inch minimum. Height was set by the airspace, above the minimum the clearance alone would have required.\u003c\/p\u003e\n\u003cp\u003eSkar does not publish a position on down firing this driver, and this cabinet makes no claim on their behalf. The feet ship uninstalled, so if you would rather run it front firing or up firing, that is a decision you can make at install time without changing anything about the enclosure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003ePower, Mounting and Warranty\u003c\/h3\u003e\n\u003cp\u003eSkar rates the VD-12 at \u003cstrong\u003e500 watts RMS\u003c\/strong\u003e. The VD-12 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. The VD-12 D4 wires to 8 ohms in series or 2 ohms in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003eSkar prints no bolt circle for the VD-12, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down. The enclosure carries a 1 year limited warranty. Bring your own VD-12; the driver is purchased separately.\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\u003eBuilt one at a time in Tullahoma, Tennessee, with standoffs and a 1 year limited warranty. 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":"Default Title","offer_id":47334590251097,"sku":"PO 12-S DF VD12","price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12-S_DF_VD12_Front_29ecf369-0dac-47e6-a4a1-3360775f8ec9.jpg?v=1790446289"},{"product_id":"performance-optimized-wedge-sealed-12-enclosure-skar-audio-vxf-12","title":"Skar Audio VXF-12 Box: Sealed 12\" Wedge Enclosure","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 | Skar Audio VXF-12\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003e12\" Sealed Wedge Enclosure | Rear-Firing Trunk-Load Design\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e0.79 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e0.94 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.61\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eSingle Chamber Wedge\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e15.00\" x 15\" x 9.94\/15.40\"\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 Skar VXF-12 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe VXF-12 is Skar Audio's 12 inch: 1500 watts RMS, 25 mm of one-way excursion on 471 square centimeters of cone, and 8.50 inches of mounting depth. Every figure comes from the Thiele-Small table Skar prints on its VXF-12 product page. Skar publishes no driver displacement, so 0.139 cubic feet is our estimate from comparable 12 inch woofers, and it moves the net figure by a few hundredths at most.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e0.79 cubic feet net is the smallest box that carries the VXF-12 frame, already under the Butterworth volume on the D4 figures, Fs 34.4 Hz, Qts 0.43 and Vas 22.7 liters: Qtc 0.610, half power at 57.8 Hz. This box is for the VXF-12 D4. The D2's Qts of 0.32 is too low for any sealed box that holds the frame: half power lands near 77 Hz. Skar's own recommended sealed volume is 1.25 to 1.5 cubic feet, which reads Qtc 0.55 on the D4.\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 Skar VXF-12\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 57.8 Hz anechoic on the D4, before any cabin gain. Driver displacement is not published, so an estimated 0.139 cubic feet is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVXF-12 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.610\u003c\/td\u003e\n\u003ctd\u003e48.8 Hz\u003c\/td\u003e\n\u003ctd\u003e57.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eThe baffle is cut to 11.02 in, Skar's published cutout, under the 12.50 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 9.94 in at the top to 15.40 in at the base, and the 8.50 in motor clears it with 0.75 in to spare. Skar prints no bolt circle for the VXF-12, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down.\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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar's Published Parameters\u003c\/h4\u003e\n\u003cp\u003eD4: Fs 34.4 Hz, Qts 0.43, Qes 0.47, Qms 4.46, Vas 22.7 L, Sd 471 cm2, Cms 0.070 mm\/N, Bl 33.8 N\/A, Mms 320 g.\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 Skar VXF-12 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe VXF-12 D4 wires to 8 ohms in series or 2 ohms in parallel. Confirm the final load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1500 watts RMS per driver. 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 with the gloss black acrylic baffle insert, one pre-wired terminal cup, 12 gauge OFC to the driver position. Polyfill wall lining installed. Threaded insert kit and stainless machine screws in the box. 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\u003eSkar Audio VXF-12: Cut for the Driver\u003c\/h2\u003e\n\u003cp\u003e0.79 cubic feet net at Qtc 0.610, F3 57.8 Hz on the D4, 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":47334591103065,"sku":"PO 12-S W VXF12 BB","price":319.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334591201369,"sku":"PO 12-S W VXF12 B","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12-S_W_VXF12_Front.jpg?v=1790423171"},{"product_id":"performance-optimized-wedge-sealed-15-enclosure-skar-audio-vxf-15","title":"Skar Audio VXF-15 Box: Sealed 15\" Wedge Enclosure","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 | Skar Audio VXF-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\"\u003e1.36 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.60 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\"\u003e17.86\" x 18\" x 10.64\/17.19\"\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 Skar VXF-15 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe VXF-15 is Skar Audio's 15 inch: 1500 watts RMS, 30 mm of one-way excursion on 779 square centimeters of cone, and 9.78 inches of mounting depth. Every figure comes from the Thiele-Small table Skar prints on its VXF-15 product page. Skar publishes no driver displacement, so 0.229 cubic feet is our estimate from comparable 15 inch woofers, and it moves the net figure by a few hundredths at most.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.36 cubic feet net is the smallest box that carries the VXF-15 frame, already under the Butterworth volume on the D2 figures, Fs 31.4 Hz, Qts 0.36 and Vas 76.8 liters: Qtc 0.623, half power at 62.6 Hz. One cabinet serves both coils: the VXF-15 D2 reads Qtc 0.623 with half power at 62.6 Hz, and the D4 reads Qtc 0.599 at 64.2 Hz. Skar's own recommended sealed volume is 2.75 cubic feet, which reads Qtc 0.51 on the D2 and 0.51 on the D4.\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 Skar VXF-15\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 62.6 Hz anechoic on the D2, before any cabin gain. Driver displacement is not published, so an estimated 0.229 cubic feet is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVXF-15 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.623\u003c\/td\u003e\n\u003ctd\u003e54.4 Hz\u003c\/td\u003e\n\u003ctd\u003e62.6 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVXF-15 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.599\u003c\/td\u003e\n\u003ctd\u003e53.0 Hz\u003c\/td\u003e\n\u003ctd\u003e64.2 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eThe baffle is cut to 13.86 in, Skar's published cutout. Skar publishes no outside frame diameter for its 15s, so the flush recess is sized to 15.36 in with margin. The rear panel rakes 20 degrees, so the cavity deepens from 10.64 in at the top to 17.19 in at the base, and the 9.78 in motor clears it with 0.75 in to spare. Skar prints no bolt circle for the VXF-15, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down.\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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar's Published Parameters\u003c\/h4\u003e\n\u003cp\u003eD2: Fs 31.4 Hz, Qts 0.36, Qes 0.38, Qms 4.74, Vas 76.8 L, Sd 779 cm2, Cms 0.080 mm\/N, Bl 24.9 N\/A, Mms 303 g. D4: Fs 35.4 Hz, Qts 0.40, Qes 0.43, Qms 4.78, Vas 47.7 L, Sd 779 cm2, Cms 0.050 mm\/N, Bl 39.1 N\/A, Mms 384 g.\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 Skar VXF-15 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe VXF-15 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. The VXF-15 D4 wires to 8 ohms in series or 2 ohms in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the final load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1500 watts RMS per driver. 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 with the gloss black acrylic baffle insert, one pre-wired terminal cup, 12 gauge OFC to the driver position. Polyfill wall lining installed. Threaded insert kit and stainless machine screws in the box. 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\u003eSkar Audio VXF-15: Cut for the Driver\u003c\/h2\u003e\n\u003cp\u003e1.36 cubic feet net at Qtc 0.623, F3 62.6 Hz on the D2, 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":47334591529049,"sku":"PO 15-S W VXF15 BB","price":369.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47334591561817,"sku":"PO 15-S W VXF15 B","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15-S_W_VXF15_Front.jpg?v=1790423181"},{"product_id":"performance-optimized-down-fire-wide-sealed-dual-10-enclosure-skar-audio-evl-10","title":"Skar Audio EVL-10 Dual Box: Sealed 10\" Down Fire Wide Enclosure","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica 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class=\"df-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Down Fire Wide Dual 10\" Sealed\u003c\/h2\u003e\n\u003cp\u003eUnder rear seat fitment for trucks and SUVs. Cut and tuned for a pair of Skar Audio EVL-10\u003c\/p\u003e\n\u003cdiv class=\"df-badges\"\u003e\n\u003cspan class=\"df-badge\"\u003eDown Fire Wide\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eV-Groove and Dado\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003e12\" Shallow Depth\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eSeparate Chambers\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\"\u003e0.653\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net per chamber\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 per chamber\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e52.8 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff, D2, anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e8.75 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\u003eThe Down Fire Wide Format\u003c\/h3\u003e\n\u003cp\u003eDown Fire Wide is the Performance Optimized answer to a specific problem: the space under the rear seat of a truck or SUV, or a narrow cargo floor, is \u003cstrong\u003elong and shallow\u003c\/strong\u003e, and the standard 30 by 15 inch Down Fire cabinet will not go in it.\u003c\/p\u003e\n\u003cp\u003eSo the cabinet is turned sideways. This one runs \u003cstrong\u003e41 inches wide by 12 inches deep by 8.75 inches tall\u003c\/strong\u003e, measured in the down fire position. It is cut for the same Skar Audio EVL-10 pair as our standard box, 3 inches shallower front to back and 11 inches longer. The airspace lost from the depth is recovered along the length, and the height is solved to the driver.\u003c\/p\u003e\n\u003cdiv class=\"df-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eMeasure the depth before anything else.\u003c\/strong\u003e Under seat spaces vary widely between cab configurations, and depth is almost always the limiting dimension. If you have 15 inches of depth, the standard 30 by 15 inch cabinet at 9.35 inches tall is the pick. If your space stops at 12 inches deep and you have 41 inches of run, this cabinet fits. The standoffs add 1.75 inches, so the installed height is 10.5 inches.\u003c\/p\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. Down Fire Wide variants like this one run long and shallow for under seat fitment.\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 layer, outer layer machined as a flush recess. 1.5 inch.\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 driver's own 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 a Pair of Skar EVL-10\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffles are cut to \u003cstrong\u003e9.39 in\u003c\/strong\u003e, Skar's published cutout, and the round 10.89 in frame sits on the 12 inch deep baffle with material fore and aft.\u003c\/p\u003e\n\u003cp\u003eThe EVL-10 is Skar Audio's 10 inch, rated 1000 watts RMS, with 23.5 mm of one-way excursion. It is \u003cstrong\u003e7.16 inches deep\u003c\/strong\u003e, which matters on a down fire, where the motor rises into the cabinet: here it clears the top panel by 0.84 inches against a 0.75 inch minimum. Every figure comes from the Thiele-Small table Skar prints on its EVL-10 product page.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eTwo Chambers, Not One Volume\u003c\/h3\u003e\n\u003cp\u003eThis enclosure follows the Proline X standing rule for dual sealed builds: \u003cstrong\u003etwo fully separate chambers\u003c\/strong\u003e split by a bonded full height 3\/4 inch MDF divider, each driver in its own 0.653 cubic feet net with its own polyfill.\u003c\/p\u003e\n\u003cp\u003eTwo drivers sharing one sealed volume interact acoustically. Each driver's compression phase becomes the pressure environment the other is working against, which smears transient response and blurs the alignment either would have on its own. A full divider removes that, and on a 41 inch cabinet it ties the front and rear walls together mid span. One shared side mounted terminal cup feeds both driver positions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eNet Volume, Not Gross\u003c\/h3\u003e\n\u003cp\u003eTotal gross volume is 1.521 cubic feet. After the divider and an estimated 0.092 cubic feet of displacement per driver, each chamber nets \u003cstrong\u003e0.653 cubic feet\u003c\/strong\u003e, 1.307 net total, matching the 0.65 per chamber our standard 30 by 15 dual EVL-10 was built to. Skar publishes no displacement, so that figure is our estimate.\u003c\/p\u003e\n\u003cp\u003eThe chamber is sized between the two coils' flat-alignment volumes, so the D2 lands just under the 0.707 reference and the D4 just over it. Skar's own recommended sealed range is larger, from 1.25 to 1.5 in cubic feet net per driver, which is not a practical down fire dual.\u003c\/p\u003e\n\u003cp\u003ePer chamber the EVL-10 D2 reads \u003cstrong\u003eQtc 0.690, Fc 51.5 Hz, F3 52.8 Hz\u003c\/strong\u003e and the D4 reads \u003cstrong\u003eQtc 0.721, Fc 52.3 Hz, F3 51.3 Hz\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv class=\"df-enc-card\"\u003e\n\u003cdiv class=\"df-enc-head\"\u003eAlignment by coil, per chamber\u003c\/div\u003e\n\u003ctable class=\"df-enc-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"df-opt\"\u003e\n\u003ctd\u003eEVL-10 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003e0.690\u003c\/td\u003e\n\u003ctd\u003e51.5 Hz\u003c\/td\u003e\n\u003ctd\u003e52.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003e0.721\u003c\/td\u003e\n\u003ctd\u003e52.3 Hz\u003c\/td\u003e\n\u003ctd\u003e51.3 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eTrue net, not marketing net.\u003c\/strong\u003e Internal volume is calculated from the machined cavity dimensions and the driver's displacement, estimated here because Skar publishes none, not guessed from external dimensions minus wall thickness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eDown Fire Wide 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. Corners are square on Down Fire cabinets.\u003c\/p\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e41 inches wide by 12 inches deep by 8.75 inches tall, measured in the down fire position\u003c\/strong\u003e. Standoffs ship with the enclosure but are not installed; they add 1.75 inches, for an installed height of 10.5 inches.\u003c\/p\u003e\n\u003cdiv class=\"df-grid\"\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e1.5 Inch Double Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo \u003cstrong\u003e3\/4 inch layers laminated to 1.5 inches\u003c\/strong\u003e, the outer layer machined as a flush recess so the driver bolts to the inner layer, with a threaded insert kit and stainless machine screws included. Skar prints no bolt circle, so the inserts ship loose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eSeparate Chambers\u003c\/h4\u003e\n\u003cp\u003eA bonded \u003cstrong\u003efull-height 3\/4 inch divider\u003c\/strong\u003e gives each driver its own 0.653 cubic feet net and its own polyfill, and ties the walls together mid span.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eOne Shared Terminal Cup\u003c\/h4\u003e\n\u003cp\u003eProline X ABS and carbon fiber composite cup with stainless hardware and copper ring terminals, \u003cstrong\u003eside mounted\u003c\/strong\u003e and pre-wired in 12 gauge OFC to both driver positions in parallel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePolyfill Installed\u003c\/h4\u003e\n\u003cp\u003ePolyfill is installed as a light wall lining in each chamber. It controls internal reflections and is not packed to change the acoustic volume.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMotor Clearance\u003c\/h4\u003e\n\u003cp\u003eThe 7.16 inch motor rises into the cavity and clears the top panel by \u003cstrong\u003e0.84 inches\u003c\/strong\u003e, against a 0.75 inch minimum. Airspace set the height, not clearance.\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\u003ePower, Mounting and Warranty\u003c\/h3\u003e\n\u003cp\u003eSkar rates the EVL-10 at \u003cstrong\u003e1000 watts RMS\u003c\/strong\u003e, 2000 watts RMS combined. A pair of EVL-10 D2 drivers can land on 0.5 ohm with all four coils in parallel, 2 ohms as series pairs in parallel, or 8 ohms all in series. A pair of EVL-10 D4 drivers can land on 1 ohm with all four coils in parallel, 4 ohms as series pairs in parallel, or 16 ohms all in series. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003eSkar prints no bolt circle for the EVL-10, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down. Skar does not publish a position on down firing this driver, and this cabinet makes no claim on their behalf; the standoffs ship uninstalled, so front or up firing is your call at install time.\u003c\/p\u003e\n\u003cp\u003eBring your own pair of EVL-10; the drivers are purchased separately. The enclosure carries a 1 year limited warranty.\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\u003eBuilt one at a time in Tullahoma, Tennessee, with standoffs and a 1 year limited warranty. 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":"Default Title","offer_id":47345068802137,"sku":"PO 10D-S DFW EVL10","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10D_S_DFW_EVL10_Front.jpg?v=1790642620"},{"product_id":"performance-optimized-down-fire-wide-sealed-10-enclosure-skar-audio-evl-10","title":"Skar Audio EVL-10 Box: Sealed 10\" Down Fire Wide Enclosure","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%,#5c3317 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 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14px;text-align:left;border-bottom:1px solid #44403c;font-weight:700}.df-tier th.on{background:#3d2412;color:#e8b98d}.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(184,115,51,.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\u003cdiv class=\"df-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Down Fire Wide 10\" Sealed\u003c\/h2\u003e\n\u003cp\u003eUnder rear seat fitment for trucks and SUVs. Cut and tuned for the Skar Audio EVL-10\u003c\/p\u003e\n\u003cdiv class=\"df-badges\"\u003e\n\u003cspan class=\"df-badge\"\u003eDown Fire Wide\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eV-Groove and Dado\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003e12\" Shallow Depth\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\"\u003e1.405\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\"\u003e0.638\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\"\u003e53.3 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff, D2, anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e8.6875 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\u003eThe Down Fire Wide Format\u003c\/h3\u003e\n\u003cp\u003eDown Fire Wide is the Performance Optimized answer to a specific problem: the space under the rear seat of a truck or SUV, or a narrow cargo floor, is \u003cstrong\u003elong and shallow\u003c\/strong\u003e, and the standard 30 by 15 inch Down Fire cabinet will not go in it.\u003c\/p\u003e\n\u003cp\u003eSo the cabinet is turned sideways. This one runs \u003cstrong\u003e41 inches wide by 12 inches deep by 8.6875 inches tall\u003c\/strong\u003e, measured in the down fire position. It is cut for the same Skar Audio EVL-10 as our standard box, 3 inches shallower front to back and 11 inches longer. The airspace lost from the depth is recovered along the length, and the height is solved to the driver.\u003c\/p\u003e\n\u003cdiv class=\"df-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eMeasure the depth before anything else.\u003c\/strong\u003e Under seat spaces vary widely between cab configurations, and depth is almost always the limiting dimension. If you have 15 inches of depth, the standard 30 by 15 inch cabinet at 8.66 inches tall is the pick. If your space stops at 12 inches deep and you have 41 inches of run, this cabinet fits. The standoffs add 1.75 inches, so the installed height is 10.4375 inches.\u003c\/p\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. Down Fire Wide variants like this one run long and shallow for under seat fitment.\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 layer, outer layer machined as a flush recess. 1.5 inch.\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 driver's own 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 Skar EVL-10\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffle is cut to \u003cstrong\u003e9.39 in\u003c\/strong\u003e, Skar's published cutout, and the round 10.89 in frame sits on the 12 inch deep baffle with material fore and aft.\u003c\/p\u003e\n\u003cp\u003eThe EVL-10 is Skar Audio's 10 inch, rated 1000 watts RMS, with 23.5 mm of one-way excursion. It is \u003cstrong\u003e7.16 inches deep\u003c\/strong\u003e, which matters on a down fire, where the motor rises into the cabinet: here it clears the top panel by 0.777 inches against a 0.75 inch minimum. Every figure comes from the Thiele-Small table Skar prints on its EVL-10 product page.\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\u003e1.405 cubic feet net\u003c\/strong\u003e, out of 1.506 gross after the brace and an estimated 0.092 cubic feet of driver displacement. Skar publishes no displacement, so that figure is our estimate from comparable 10 inch woofers.\u003c\/p\u003e\n\u003cp\u003eHeight on this cabinet is set by the driver's mounting depth, not by a volume target. The motor needs 0.75 inch of clearance above it inside the cabinet, and at that height the 41 by 12 footprint holds \u003cstrong\u003e1.405 cubic feet net\u003c\/strong\u003e, more than the 1.28 the standard box was built to. More air behind the same driver lowers Qtc, which is the safe direction. It also sits inside Skar's own recommended sealed range, which runs from 1.25 to 1.5, in cubic feet net.\u003c\/p\u003e\n\u003cp\u003eIn it the EVL-10 D2 reads \u003cstrong\u003eQtc 0.638, Fc 47.6 Hz, F3 53.3 Hz\u003c\/strong\u003e and the D4 reads \u003cstrong\u003eQtc 0.669, Fc 48.5 Hz, F3 51.5 Hz\u003c\/strong\u003e: a gentle, damped rolloff rather than a flat one.\u003c\/p\u003e\n\u003cdiv class=\"df-enc-card\"\u003e\n\u003cdiv class=\"df-enc-head\"\u003eAlignment by coil\u003c\/div\u003e\n\u003ctable class=\"df-enc-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003eFc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"df-opt\"\u003e\n\u003ctd\u003eEVL-10 dual 2 ohm\u003c\/td\u003e\n\u003ctd\u003e0.638\u003c\/td\u003e\n\u003ctd\u003e47.6 Hz\u003c\/td\u003e\n\u003ctd\u003e53.3 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003e0.669\u003c\/td\u003e\n\u003ctd\u003e48.5 Hz\u003c\/td\u003e\n\u003ctd\u003e51.5 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eTrue net, not marketing net.\u003c\/strong\u003e Internal volume is calculated from the machined cavity dimensions and the driver's displacement, estimated here because Skar publishes none, not guessed from external dimensions minus wall thickness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eDown Fire Wide 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. Corners are square on Down Fire cabinets.\u003c\/p\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e41 inches wide by 12 inches deep by 8.6875 inches tall, measured in the down fire position\u003c\/strong\u003e. Standoffs ship with the enclosure but are not installed; they add 1.75 inches, for an installed height of 10.4375 inches.\u003c\/p\u003e\n\u003cdiv class=\"df-grid\"\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e1.5 Inch Double Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo \u003cstrong\u003e3\/4 inch layers laminated to 1.5 inches\u003c\/strong\u003e, the outer layer machined as a flush recess so the driver bolts to the inner layer, with a threaded insert kit and stainless machine screws included. Skar prints no bolt circle, so the inserts ship loose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWindowed U-Brace\u003c\/h4\u003e\n\u003cp\u003eA \u003cstrong\u003ewindowed U-brace\u003c\/strong\u003e dadoed to the shell ties the front and rear walls together across the 41 inch span without walling off the airspace.\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, \u003cstrong\u003eside mounted\u003c\/strong\u003e and pre-wired in 12 gauge OFC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePolyfill Installed\u003c\/h4\u003e\n\u003cp\u003ePolyfill is installed as a light wall lining. It controls internal reflections and is not packed to change the acoustic volume.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMotor Clearance\u003c\/h4\u003e\n\u003cp\u003eThe 7.16 inch motor rises into the cavity and clears the top panel by \u003cstrong\u003e0.777 inches\u003c\/strong\u003e, against a 0.75 inch minimum. That clearance set the cabinet height.\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\u003ePower, Mounting and Warranty\u003c\/h3\u003e\n\u003cp\u003eSkar rates the EVL-10 at \u003cstrong\u003e1000 watts RMS\u003c\/strong\u003e. The EVL-10 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. The EVL-10 D4 wires to 8 ohms in series or 2 ohms in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003eSkar prints no bolt circle for the EVL-10, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down. Skar does not publish a position on down firing this driver, and this cabinet makes no claim on their behalf; the standoffs ship uninstalled, so front or up firing is your call at install time.\u003c\/p\u003e\n\u003cp\u003eBring your own EVL-10; the driver is purchased separately. The enclosure carries a 1 year limited warranty.\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\u003eBuilt one at a time in Tullahoma, Tennessee, with standoffs and a 1 year limited warranty. 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":"Default Title","offer_id":47345075585113,"sku":"PO 10-S DFW EVL10","price":309.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10_S_DFW_EVL10_Front.jpg?v=1790642764"},{"product_id":"performance-optimized-down-fire-wide-sealed-dual-12-enclosure-skar-audio-evl-12","title":"Skar Audio EVL-12 Dual Box: Sealed 12\" Down Fire Wide Enclosure","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%,#5c3317 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 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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:#d99058;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#5c3317 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:#3d2412;color:#e8b98d}.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(184,115,51,.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\u003cdiv class=\"df-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Down Fire Wide Dual 12\" Sealed\u003c\/h2\u003e\n\u003cp\u003eCut for a pair of Skar EVL-12, D4 or D2\u003c\/p\u003e\n\u003cdiv class=\"df-badges\"\u003e\n\u003cspan class=\"df-badge\"\u003eDown Fire Wide\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eV-Groove and Dado\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eSeparate Chambers\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\"\u003e0.799\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net each\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e0.618\u003c\/span\u003e\u003cspan class=\"l\"\u003esystem Qtc, EVL-12 D4, per chamber\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e51.0 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff, EVL-12 D4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e9.125 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\u003eThe Down Fire Wide Format\u003c\/h3\u003e\n\u003cp\u003eDown Fire Wide is the same driver in a different shape. The standard Performance Optimized Down Fire cabinet for the Skar EVL-12 is 30 by 15 inches. This one runs \u003cstrong\u003e41 inches wide by 14 inches deep\u003c\/strong\u003e: 1 inch shallower front to back and 11 inches longer.\u003c\/p\u003e\n\u003cp\u003eFourteen inches is not arbitrary. A 12 inch frame needs about 13 inches of baffle to sit on, so 14 is the practical minimum depth for this driver size. The Skar EVL-12 frame measures 12.5 inches across and sits on the 14 inch deep baffle with about 0.75 inches of baffle fore and aft. Both positions are laid out along the 41 inch length.\u003c\/p\u003e\n\u003cp\u003eHere the motor sets the height of both boxes, so this one stands \u003cstrong\u003e9.125 inches tall\u003c\/strong\u003e against 9.11 for the standard 30 x 15 Skar EVL-12 cabinet, effectively the same, both measured in the down fire position without feet. The extra length goes into airspace instead of a lower cabinet.\u003c\/p\u003e\n\u003cdiv class=\"df-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eWhich one to choose.\u003c\/strong\u003e The standard 30 x 15 is the pick when length is limited. This one is the pick when height or depth is the limit and you have 41 inches of run. On this driver the motor fixes the height of both, so the wide box saves depth, not height, and adds air. Plan around the installed height: the 1.75 inch standoffs put the finished stack near 10.875 inches.\u003c\/p\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. Down Fire Wide variants like this one run long and shallow for under seat fitment.\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 layer, outer layer machined as a flush recess. 1.5 inch.\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 cutouts and the cabinet height all come from the driver's own 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 a Pair of Skar EVL-12\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffles are cut to 11.22 in, Skar's published cutout, under the 12.50 in frame. The airspace lands on \u003cstrong\u003e0.799 cubic feet net per chamber, 1.597 cubic feet net across both\u003c\/strong\u003e, the volume the wide cabinet reaches at the height the 7.61 inch motor requires.\u003c\/p\u003e\n\u003cp\u003eThe EVL-12 is Skar Audio's 12 inch, rated \u003cstrong\u003e1250 watts RMS\u003c\/strong\u003e, with 23.5 mm of one-way excursion. It is 7.61 inches deep, which matters on a down fire, where the motor rises into the cabinet. Every figure comes from the Thiele-Small table Skar prints on its EVL-12 product page. Skar publishes no driver displacement, so the 0.14 cubic feet used here is our estimate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eNet Volume and Alignment\u003c\/h3\u003e\n\u003cp\u003eEach chamber holds \u003cstrong\u003e0.799 cubic feet net\u003c\/strong\u003e, \u003cstrong\u003e1.597 cubic feet net across both\u003c\/strong\u003e, from 1.915 cubic feet gross after the divider, the bracing and each driver's 0.14 cubic feet of displacement (estimated, no manufacturer figure).\u003c\/p\u003e\n\u003cp\u003eHeight here is set by the driver's mounting depth, not by a volume target. The 7.61 inch motor needs 0.75 inch of clearance above it, so the cabinet can go no lower than 9.125 inches. At that height the wide footprint holds \u003cstrong\u003e0.799 net per chamber\u003c\/strong\u003e, more than the 0.59 the standard 30 x 15 box was built to. More air lowers Qtc, which is the safe direction: a softer, better damped corner rather than a peakier one.\u003c\/p\u003e\n\u003cp\u003eComputed from the Thiele-Small table Skar publishes: \u003cstrong\u003eEVL-12 D4: Qtc 0.618, Fc 43.8 Hz, F3 51.0 Hz\u003c\/strong\u003e; \u003cstrong\u003eEVL-12 D2: Qtc 0.570, Fc 43.7 Hz, F3 56.5 Hz\u003c\/strong\u003e per chamber.\u003c\/p\u003e\n\u003cp\u003eThat is a well-damped, dry alignment, most of all on the D2: tight and controlled, with a gentle, early rolloff rather than lift at the corner. If you want more punch, the standard 30 x 15 box is the pick.\u003c\/p\u003e\n\u003cp\u003eSkar recommends 1.75 net per driver for a sealed EVL-12. Neither dual cabinet gets there, but the wide box gives each driver about a third more air than the standard dual.\u003c\/p\u003e\n\u003cdiv class=\"df-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eTrue net, not marketing net.\u003c\/strong\u003e Internal volume is calculated from the machined cavity dimensions and the driver's displacement, not estimated from external dimensions minus wall thickness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eTwo Chambers, Not One\u003c\/h3\u003e\n\u003cp\u003eThis enclosure follows the Proline X standing design rule for dual sealed builds: \u003cstrong\u003etwo fully separate chambers\u003c\/strong\u003e divided by a bonded full-height 3\/4 inch MDF panel.\u003c\/p\u003e\n\u003cp\u003eTwo drivers sharing one sealed volume interact acoustically. Each driver's compression phase becomes the pressure environment the other is working against, which smears transient response and blurs the alignment each would have on its own. A full divider removes that. Each Skar EVL-12 gets its own 0.799 cubic feet net and its own polyfill.\u003c\/p\u003e\n\u003cp\u003eOn a 41 inch cabinet the divider does structural work as well, tying the front and rear walls together at the centre of the span. One shared side-mounted terminal cup feeds both driver positions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eDown Fire Wide 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. Corners are square on Down Fire cabinets.\u003c\/p\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e41 inches wide by 14 inches deep by 9.125 inches tall, measured in the down fire position\u003c\/strong\u003e. Plan the space around the installed height rather than the cabinet height: the standoffs hold 1.75 inches under the baffle, so the finished stack sits near \u003cstrong\u003e10.875 inches\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv class=\"df-grid\"\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e1.5 Inch Double Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo \u003cstrong\u003e3\/4 inch layers laminated to 1.5 inches\u003c\/strong\u003e, with the outer layer machined as a flush recess so the driver bolts to the inner layer. Skar prints no bolt circle, so a threaded insert kit with stainless machine screws ships loose rather than pre-installed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eSeparate Chambers\u003c\/h4\u003e\n\u003cp\u003eA bonded \u003cstrong\u003efull-height 3\/4 inch divider\u003c\/strong\u003e gives each driver its own 0.799 cubic feet net and its own polyfill, and ties the walls together mid span.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eOne Shared Terminal Cup\u003c\/h4\u003e\n\u003cp\u003eProline X ABS and carbon fiber composite cup with stainless hardware and copper ring terminals, \u003cstrong\u003eside mounted\u003c\/strong\u003e and pre-wired in 12 gauge OFC to both driver positions in parallel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePolyfill Installed\u003c\/h4\u003e\n\u003cp\u003ePolyfill is installed as a light wall lining in both chambers to control internal reflections. It does not change the acoustic volume, so do not add more.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eMotor Clearance and Orientation\u003c\/h3\u003e\n\u003cp\u003eThe motors rise off the baffle into the cavity, so on a down fire cabinet the clearance that matters runs to the top panel. The 7.61 inch mounting depth leaves \u003cstrong\u003e0.765 inches above the motor\u003c\/strong\u003e in a 6.875 inch internal height, against a 0.75 inch minimum. Height was set by that clearance, not by the airspace.\u003c\/p\u003e\n\u003cp\u003eSkar does not publish a position on down firing this driver, and this cabinet makes no claim on their behalf. The standoffs ship uninstalled, so if you would rather run it front firing or up firing, that is a decision you can make at install time. At 1.75 inches the floor slot is 0.84 times the cone area, under the 1.0 we aim for; the 23.5 mm of excursion moves a lot of air, so taller feet or a front-firing install give it more room if the floor allows.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ENCLOSURE PERFORMANCE SLOT --\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003ePower, Mounting and Warranty\u003c\/h3\u003e\n\u003cp\u003eSkar rates the EVL-12 at \u003cstrong\u003e1250 watts RMS\u003c\/strong\u003e, 2500 watts RMS across the pair. A pair of EVL-12 D4 drivers can land on 1 ohm with all four coils in parallel, 4 ohms as series pairs in parallel, or 16 ohms all in series. A pair of EVL-12 D2 drivers can land on 0.5 ohm with all four coils in parallel, 2 ohms as series pairs in parallel, or 8 ohms all in series. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003eSkar prints no bolt circle for the EVL-12, so the baffles ship undrilled with a threaded insert kit and stainless machine screws: set each driver in its recess, mark its holes, drill, press the inserts and bolt it down. The enclosure carries a 1 year limited warranty. Bring your own pair of EVL-12; the drivers are purchased separately.\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\u003eDown Fire Wide, 41 inches long and 14 deep, cut for one driver model and built one at a time in Tullahoma, Tennessee. Questions on fitment or amplifier matching, call us at 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47345338581081,"sku":"PO 12D-S DFW EVL12","price":389.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12D_S_DFW_EVL12_Front.jpg?v=1790650454"},{"product_id":"performance-optimized-down-fire-wide-sealed-12-enclosure-skar-audio-evl-12","title":"Skar Audio EVL-12 Box: Sealed 12\" Down Fire Wide Enclosure","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%,#5c3317 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 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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:#d99058;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#5c3317 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:#3d2412;color:#e8b98d}.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(184,115,51,.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\u003cdiv class=\"df-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Down Fire Wide 12\" Sealed\u003c\/h2\u003e\n\u003cp\u003eCut for the Skar EVL-12, D4 or D2\u003c\/p\u003e\n\u003cdiv class=\"df-badges\"\u003e\n\u003cspan class=\"df-badge\"\u003eDown Fire Wide\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eV-Groove and Dado\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003e14\" Depth\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\"\u003e1.765\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\"\u003e0.537\u003c\/span\u003e\u003cspan class=\"l\"\u003esystem Qtc, EVL-12 D4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e53.5 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff, EVL-12 D4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e9.125 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\u003eThe Down Fire Wide Format\u003c\/h3\u003e\n\u003cp\u003eDown Fire Wide is the same driver in a different shape. The standard Performance Optimized Down Fire cabinet for the Skar EVL-12 is 30 by 15 inches. This one runs \u003cstrong\u003e41 inches wide by 14 inches deep\u003c\/strong\u003e: 1 inch shallower front to back and 11 inches longer.\u003c\/p\u003e\n\u003cp\u003eFourteen inches is not arbitrary. A 12 inch frame needs about 13 inches of baffle to sit on, so 14 is the practical minimum depth for this driver size. The Skar EVL-12 frame measures 12.5 inches across and sits on the 14 inch deep baffle with about 0.75 inches of baffle fore and aft. \u003c\/p\u003e\n\u003cp\u003eHere the motor sets the height of both boxes, so this one stands \u003cstrong\u003e9.125 inches tall\u003c\/strong\u003e against 9.11 for the standard 30 x 15 Skar EVL-12 cabinet, effectively the same, both measured in the down fire position without feet. The extra length goes into airspace instead of a lower cabinet.\u003c\/p\u003e\n\u003cdiv class=\"df-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eWhich one to choose.\u003c\/strong\u003e The standard 30 x 15 is the pick when length is limited. This one is the pick when height or depth is the limit and you have 41 inches of run. On this driver the motor fixes the height of both, so the wide box saves depth, not height, and adds air. Plan around the installed height: the 1.75 inch standoffs put the finished stack near 10.875 inches.\u003c\/p\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. Down Fire Wide variants like this one run long and shallow for under seat fitment.\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 layer, outer layer machined as a flush recess. 1.5 inch.\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 driver's own 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 Skar EVL-12\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffle is cut to 11.22 in, Skar's published cutout, under the 12.50 in frame. The airspace lands on \u003cstrong\u003e1.765 cubic feet net\u003c\/strong\u003e, the volume the wide cabinet reaches at the height the 7.61 inch motor requires.\u003c\/p\u003e\n\u003cp\u003eThe EVL-12 is Skar Audio's 12 inch, rated \u003cstrong\u003e1250 watts RMS\u003c\/strong\u003e, with 23.5 mm of one-way excursion. It is 7.61 inches deep, which matters on a down fire, where the motor rises into the cabinet. Every figure comes from the Thiele-Small table Skar prints on its EVL-12 product page. Skar publishes no driver displacement, so the 0.14 cubic feet used here is our estimate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eNet Volume and Alignment\u003c\/h3\u003e\n\u003cp\u003eThe cabinet holds \u003cstrong\u003e1.765 cubic feet net\u003c\/strong\u003e, from 1.915 cubic feet gross after the brace and the driver's 0.14 cubic feet of displacement (estimated, no manufacturer figure).\u003c\/p\u003e\n\u003cp\u003eHeight here is set by the driver's mounting depth, not by a volume target. The 7.61 inch motor needs 0.75 inch of clearance above it, so the cabinet can go no lower than 9.125 inches. At that height the wide footprint holds \u003cstrong\u003e1.765 net\u003c\/strong\u003e, more than the 1.33 the standard 30 x 15 box was built to. More air lowers Qtc, which is the safe direction: a softer, better damped corner rather than a peakier one.\u003c\/p\u003e\n\u003cp\u003eComputed from the Thiele-Small table Skar publishes: \u003cstrong\u003eEVL-12 D4: Qtc 0.537, Fc 38.1 Hz, F3 53.5 Hz\u003c\/strong\u003e; \u003cstrong\u003eEVL-12 D2: Qtc 0.494, Fc 37.9 Hz, F3 59.9 Hz\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThat is a well-damped, dry alignment: tight and controlled, with a gentle, early rolloff rather than lift at the corner. If you want more punch, the standard 30 x 15 box is the pick.\u003c\/p\u003e\n\u003cp\u003eWorth knowing: Skar recommends 1.75 net for a sealed EVL-12, and this cabinet lands essentially on it. On a driver with Qts this low, more air does not dig deeper; it lowers Qtc and moves F3 up slightly, trading lift for control.\u003c\/p\u003e\n\u003cdiv class=\"df-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eTrue net, not marketing net.\u003c\/strong\u003e Internal volume is calculated from the machined cavity dimensions and the driver's displacement, not estimated from external dimensions minus wall thickness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eDown Fire Wide 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. Corners are square on Down Fire cabinets.\u003c\/p\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e41 inches wide by 14 inches deep by 9.125 inches tall, measured in the down fire position\u003c\/strong\u003e. Plan the space around the installed height rather than the cabinet height: the standoffs hold 1.75 inches under the baffle, so the finished stack sits near \u003cstrong\u003e10.875 inches\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv class=\"df-grid\"\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e1.5 Inch Double Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo \u003cstrong\u003e3\/4 inch layers laminated to 1.5 inches\u003c\/strong\u003e, with the outer layer machined as a flush recess so the driver bolts to the inner layer. Skar prints no bolt circle, so a threaded insert kit with stainless machine screws ships loose rather than pre-installed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWindowed U-Brace\u003c\/h4\u003e\n\u003cp\u003eA \u003cstrong\u003ewindowed U-brace\u003c\/strong\u003e dadoed to the shell ties the long 41 inch panels together without taking a meaningful bite out of the airspace.\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\u003ePolyfill Installed\u003c\/h4\u003e\n\u003cp\u003ePolyfill is installed as a light wall lining to control internal reflections. It does not change the acoustic volume, so do not add more.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eMotor Clearance and Orientation\u003c\/h3\u003e\n\u003cp\u003eThe motor rises off the baffle into the cavity, so on a down fire cabinet the clearance that matters runs to the top panel. The 7.61 inch mounting depth leaves \u003cstrong\u003e0.765 inches above the motor\u003c\/strong\u003e in a 6.875 inch internal height, against a 0.75 inch minimum. Height was set by that clearance, not by the airspace.\u003c\/p\u003e\n\u003cp\u003eSkar does not publish a position on down firing this driver, and this cabinet makes no claim on their behalf. The standoffs ship uninstalled, so if you would rather run it front firing or up firing, that is a decision you can make at install time. At 1.75 inches the floor slot is 0.84 times the cone area, under the 1.0 we aim for; the 23.5 mm of excursion moves a lot of air, so taller feet or a front-firing install give it more room if the floor allows.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ENCLOSURE PERFORMANCE SLOT --\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003ePower, Mounting and Warranty\u003c\/h3\u003e\n\u003cp\u003eSkar rates the EVL-12 at \u003cstrong\u003e1250 watts RMS\u003c\/strong\u003e. The EVL-12 D4 wires to 8 ohms in series or 2 ohms in parallel. The EVL-12 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003eSkar prints no bolt circle for the EVL-12, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down. The enclosure carries a 1 year limited warranty. Bring your own EVL-12; the driver is purchased separately.\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\u003eDown Fire Wide, 41 inches long and 14 deep, cut for one driver model and built one at a time in Tullahoma, Tennessee. Questions on fitment or amplifier matching, call us at 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47345339596889,"sku":"PO 12-S DFW EVL12","price":339.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12_S_DFW_EVL12_Front.jpg?v=1790650538"},{"product_id":"performance-optimized-down-fire-wide-sealed-12-enclosure-skar-audio-vd-12","title":"Skar Audio VD-12 Box: Sealed 12\" Down Fire Wide Enclosure","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%,#5c3317 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 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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:#d99058;text-decoration:underline}.df-cta{background:linear-gradient(135deg,#0c0a09 0%,#5c3317 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:#3d2412;color:#e8b98d}.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(184,115,51,.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\u003cdiv class=\"df-hero\"\u003e\n\u003ch2\u003eProline X Performance Optimized Down Fire Wide 12\" Sealed\u003c\/h2\u003e\n\u003cp\u003e41 by 14 inch footprint for spaces where height or depth is the limit. Cut for the Skar Audio VD-12\u003c\/p\u003e\n\u003cdiv class=\"df-badges\"\u003e\n\u003cspan class=\"df-badge\"\u003eDown Fire Wide\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eV-Groove and Dado\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003e14\" Deep\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eWindowed U-Brace\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\"\u003e1.090\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\"\u003e0.854\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\"\u003e46.9 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff, D2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e6.5 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\u003eThe Down Fire Wide Format\u003c\/h3\u003e\n\u003cp\u003eDown Fire Wide takes the same Skar Audio VD-12 our standard 30 by 15 inch Down Fire enclosure is built for and lays the cabinet out along a different axis. It is \u003cstrong\u003e1 inch shallower front to back\u003c\/strong\u003e, 14 inches instead of 15, and \u003cstrong\u003e11 inches longer\u003c\/strong\u003e, 41 instead of 30.\u003c\/p\u003e\n\u003cp\u003eFourteen inches is the practical minimum depth for a 12. The frame needs about 13 inches of baffle, and the cabinet walls need land around it, so the depth cannot come down further. The VD-12's 12.6 inch frame sits on the 14 inch deep baffle with about 0.70 inch of baffle fore and aft.\u003c\/p\u003e\n\u003cp\u003eSpreading the airspace along 41 inches means the wide box stands lower. This cabinet is \u003cstrong\u003e41 inches wide by 14 inches deep by 6.5 inches tall\u003c\/strong\u003e, against 7.34 inches tall for the standard 30 by 15, both measured in the down fire position and excluding standoffs. With the 1.75 inch standoffs installed it stands 8.25 inches.\u003c\/p\u003e\n\u003cdiv class=\"df-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eWhich one to choose.\u003c\/strong\u003e The standard 30 by 15 is the pick when length is limited. This one is the pick when height or depth is the limit and you have 41 inches of run. Measure all three before ordering.\u003c\/p\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. Down Fire Wide variants like this one run 41 by 14 for spaces where height or depth is the limit.\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 layer, outer layer machined as a flush recess. 1.5 inch.\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 cutout, the cabinet height and the airspace all come from the Skar Audio VD-12'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 Skar Audio VD-12\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffle is cut to \u003cstrong\u003e11.28 in, Skar's published cutout\u003c\/strong\u003e, under the 12.60 in frame.\u003c\/p\u003e\n\u003cp\u003eThe VD-12 is Skar Audio's 12 inch, rated \u003cstrong\u003e500 watts RMS\u003c\/strong\u003e, with \u003cstrong\u003e11 mm of one-way excursion\u003c\/strong\u003e. It is 4.95 inches deep, which matters on a down fire, where the motor rises into the cabinet. The figures come from the Thiele-Small table Skar prints on its VD-12 product page: Fs 35.3 Hz, Qts 0.55, Vas 43.5 liters for the D2. Skar publishes no driver displacement, so the 0.085 cubic feet used here is our \u003cstrong\u003eestimate\u003c\/strong\u003e from comparable 12 inch woofers. Skar also leaves cone area blank, so the 505 cm² in the specs is derived from their Vas and compliance.\u003c\/p\u003e\n\u003cp\u003eSkar also publishes a separate set for the VD-12 D4: Fs 36.6 Hz, Qts 0.60, Vas 44.3 liters. It shares the D2's cutout and mounting depth, so this cabinet is specified for the \u003cstrong\u003eVD-12 D2 or D4\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eNet Volume, Not Gross\u003c\/h3\u003e\n\u003cp\u003eThe cabinet holds \u003cstrong\u003e1.090 cubic feet net\u003c\/strong\u003e from a 1.18 cubic foot gross cavity, after the windowed U-brace and the driver's estimated 0.085 cubic feet of displacement are subtracted.\u003c\/p\u003e\n\u003cp\u003eThat produces \u003cstrong\u003eQtc 0.854 with Fc at 54.8 Hz and a predicted F3 of 46.9 Hz on the VD-12 D2\u003c\/strong\u003e, and \u003cstrong\u003eQtc 0.936 with Fc at 57.1 Hz and F3 at 46.4 Hz on the D4\u003c\/strong\u003e. Both are above the 0.707 maximally flat reference, so there is real lift near the corner rather than a textbook flat curve.\u003c\/p\u003e\n\u003cdiv class=\"df-highlight\"\u003e\n\u003cp\u003e\u003cstrong\u003eHeight is set by the motor, not the airspace.\u003c\/strong\u003e The 4.95 inch mounting depth needs the cabinet to leave 0.75 inch above the motor, and at 41 by 14 that minimum height already encloses 1.090 cubic feet net, more than the 1.00 cubic feet the standard 30 by 15 box was built to. More air for the same driver lowers Qtc, which is the safe direction: better damping, less peaking, a slightly earlier rolloff.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eTrue net, not marketing net. Internal volume is calculated from the machined cavity dimensions and the driver's estimated displacement, not estimated from external dimensions minus wall thickness. All figures are anechoic; firing down into the floor, the sealed rolloff meets rising cabin gain below 60 Hz, so in-car response extends below them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eDown Fire Wide 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. Corners are square on Down Fire cabinets.\u003c\/p\u003e\n\u003cp\u003eThe cabinet measures \u003cstrong\u003e41 inches wide by 14 inches deep by 6.5 inches tall, measured in the down fire position and excluding standoffs\u003c\/strong\u003e. The 1.75 inch standoffs ship with the enclosure but are not installed, so plan the space around the installed height of 8.25 inches.\u003c\/p\u003e\n\u003cdiv class=\"df-grid\"\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003e1.5 Inch Double Baffle\u003c\/h4\u003e\n\u003cp\u003eTwo \u003cstrong\u003e3\/4 inch layers laminated to 1.5 inches\u003c\/strong\u003e, with the outer layer machined as a flush recess so the driver bolts to the inner layer. Mounting is a threaded insert kit with stainless machine screws, not pre-installed, because Skar prints no bolt circle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eFrame on a 14 Inch Baffle\u003c\/h4\u003e\n\u003cp\u003eThe 12.6 inch frame sits on the \u003cstrong\u003e14 inch deep baffle\u003c\/strong\u003e with about 0.70 inch of material fore and aft.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWindowed U-Brace\u003c\/h4\u003e\n\u003cp\u003eOne chamber, braced with a \u003cstrong\u003ewindowed U-brace\u003c\/strong\u003e dadoed to the shell, which stiffens the long panels without walling off the airspace.\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, \u003cstrong\u003eside mounted\u003c\/strong\u003e and pre-wired in 12 gauge OFC, 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 and Polyfill\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1.75 inch standoffs\u003c\/strong\u003e ship uninstalled, so you can place them to suit your floor or leave them off and run the cabinet front or up firing. Polyfill is installed as a light wall lining and does not alter the acoustic volume.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003ePower and Wiring\u003c\/h3\u003e\n\u003cp\u003eSkar rates the VD-12 at \u003cstrong\u003e500 watts RMS\u003c\/strong\u003e. The VD-12 D2 wires to 4 ohms with its coils in series or 1 ohm in parallel. The VD-12 D4 wires to 8 ohms in series or 2 ohms in parallel. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for; series wiring is the safe default. Confirm the load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003eSkar prints no bolt circle for the VD-12, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in the recess, mark its holes, drill, press the inserts and bolt it down. The enclosure carries a 1 year limited warranty. Bring your own VD-12 D2 or D4; the driver is purchased separately.\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\u003eDown Fire Wide, 41 by 14, cut on our ShopSabre routers and built one at a time in Tullahoma, Tennessee. Questions on fitment or amplifier matching, call us at 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47345341169753,"sku":"PO 12-S DFW VD12","price":339.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12_S_DFW_VD12_Front.jpg?v=1790650644"},{"product_id":"performance-optimized-wedge-wide-sealed-quad-10-enclosure-skar-audio-evl-10","title":"Skar Audio EVL-10 Quad Box: Sealed 10\" Wedge Wide Enclosure","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 Wide | Quad Skar Audio EVL-10\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003eQuad 10\" Sealed Wedge Enclosure | Built for SUV Cargo Floors\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e0.732 ft3 Net per Driver\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.93 ft3 Net Total\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.68\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2 Sealed Chambers\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e44\" x 17\" x 8.93\/15.11\"\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\u003eFour Skar Audio EVL-10 in a 44 Inch Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe wide wedge is a fixed SUV platform: 44 inches across and 17 tall, built to span a cargo floor against the rear seat. Depth is the only dimension that moves, and it is solved for the driver. Here it runs 8.93 in at the top to 15.11 in at the base.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e0.732 cubic feet net per driver on Skar Audio's published Fs 44.0 Hz, Qts 0.590 and Vas 6.8 liters: Qtc 0.680, system resonance 50.7 Hz, half power 52.8 Hz. The 7.16 in deep motor sets the shallowest the wedge can be, and that smallest box is still more air than flat wants, so it lands below 0.707: tighter and more damped, trading a little extension for control.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eTwo Chambers, Two Drivers Each\u003c\/h2\u003e\n\u003cp\u003eA bonded full-height 3\/4 inch MDF divider splits the cabinet into two sealed chambers of 1.465 cubic feet net. Each chamber carries two drivers, so each driver works into 0.732 cubic feet; both drivers in a chamber see the same pressure, which is why they must be a matched pair. Two pre-wired terminal cups, side mounted, one per chamber; each cup feeds the two drivers in its chamber.\u003c\/p\u003e\n\u003cp\u003eFour 10.89 in frames will not sit flat in a row on a 44 inch face, so the woofers are staggered on the height: the outer pair sits 3.58 in below the inner pair, mirrored left to right, and every frame keeps clear of its neighbor and of the cabinet edge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eCargo-Floor Wedge Design\u003c\/h2\u003e\n\u003cp\u003eThe woofers mount on the vertical face and fire rearward toward the liftgate. The raked face goes against the rear seat back.\u003c\/p\u003e\n\u003cdiv class=\"po-grid\"\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eRaked Face Matches the Seat\u003c\/h4\u003e\n\u003cp\u003eA 20 degree rear panel follows the lean of a rear seat back.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e44 Inches Across\u003c\/h4\u003e\n\u003cp\u003eBuilt to span a cargo floor. Measure between the rear wheel wells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e17 Inches Tall\u003c\/h4\u003e\n\u003cp\u003eCheck it against your cargo cover and rear glass before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e15.11 Inches Deep at the Base\u003c\/h4\u003e\n\u003cp\u003eMeasure the cargo floor before you order.\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 Skar Audio EVL-10\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 52.8 Hz anechoic, before cabin gain. Skar Audio does not publish driver displacement, so an estimated 0.092 cubic feet per driver is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers (Per Driver)\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 D2\u003c\/td\u003e\n\u003ctd\u003eQtc 0.680\u003c\/td\u003e\n\u003ctd\u003e50.7 Hz\u003c\/td\u003e\n\u003ctd\u003e52.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 D4\u003c\/td\u003e\n\u003ctd\u003eQtc 0.711\u003c\/td\u003e\n\u003ctd\u003e51.6 Hz\u003c\/td\u003e\n\u003ctd\u003e51.3 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eEach opening is cut to 9.400 in for the 10.89 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 8.93 in at the top to 15.11 in at the base, and the 7.16 in deep motor clears it with 0.75 in to spare.\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 fold, sides and dividers 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, frames mounted on the face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar Audio's Own Parameters\u003c\/h4\u003e\n\u003cp\u003eFs 44.0 Hz, Qts 0.590, Qes 0.660, Qms 5.440, Vas 6.8 L, Sd 314 cm2, Xmax 24 mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring Four Skar Audio EVL-10 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eEach EVL-10 D2 has two 2 ohm voice coils, 4 ohms in series or 1 ohm in parallel. Wire every driver's coils in series. With the two drivers in each chamber in parallel and the two cups in parallel, the four present 1 ohm to a mono amplifier. With the two drivers in each chamber in series and the two cups in parallel, they present 4 ohms. Use the lower load only on an amplifier rated stable there. Each EVL-10 D4 has two 4 ohm voice coils, 8 ohms in series or 2 ohms in parallel. Wire every driver's coils in series. With the two drivers in each chamber in parallel and the two cups in parallel, the four present 2 ohms to a mono amplifier. With the two drivers in each chamber in series and the two cups in parallel, they present 8 ohms. Use the lower load only on an amplifier rated stable there. \u003c\/p\u003e\n\u003cp\u003eSkar Audio rates the driver at 1000 watts RMS each, 4000 across all four. Recommended amplifier: 700 to 1000 W RMS per driver, 2,800 to 4,000 W RMS for the full set of 4.\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 with the gloss black acrylic baffle insert, two side-mounted pre-wired terminal cups, 12 gauge OFC. Polyfill wall lining installed in every chamber. Threaded inserts at every mounting location, stainless machine screws in the box. 1 year limited warranty. Enclosure only, the drivers are purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eQuad Skar Audio EVL-10: 44 Inch SUV Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003e0.732 cubic feet net per driver at Qtc 0.680, F3 52.8 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":47357306929241,"sku":"PO 10Q-S W EVL10 BB","price":549.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47357306962009,"sku":"PO 10Q-S W EVL10 B","price":529.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10Q-S_W_EVL10_Front.jpg?v=1791756302"},{"product_id":"performance-optimized-wedge-wide-sealed-triple-12-enclosure-skar-audio-vd-12","title":"Skar Audio VD-12 Triple Box: Sealed 12\" Wedge Wide Enclosure","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 Wide | Triple Skar Audio VD-12\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003eTriple 12\" Sealed Wedge Enclosure | Built for SUV Cargo Floors\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.000 ft3 Net per Driver\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e3.00 ft3 Net Total\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.88\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e3 Sealed Chambers\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e44\" x 17\" x 8.98\/15.17\"\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\u003eThree Skar Audio VD-12 in a 44 Inch Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe wide wedge is a fixed SUV platform: 44 inches across and 17 tall, built to span a cargo floor against the rear seat. Depth is the only dimension that moves, and it is solved for the driver. Here it runs 8.98 in at the top to 15.17 in at the base.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.000 cubic feet net per driver on Skar Audio's published Fs 35.3 Hz, Qts 0.550 and Vas 43.5 liters: Qtc 0.876, system resonance 56.2 Hz, half power 47.4 Hz. The cabinet is sized to the maker's recommended sealed size, 1.00 cubic feet per driver, to keep it realistic for a cargo floor. Maximally flat would need 2.35 cubic feet per driver; this size trades a little low end for a compact box and a small lift near resonance, 0.6 dB above flat.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThree Fully Separate Chambers\u003c\/h2\u003e\n\u003cp\u003eTwo bonded full-height 3\/4 inch MDF dividers split the cabinet into three sealed chambers of 1.000 cubic feet net, one driver each, so no driver loads another. Three pre-wired terminal cups on the rear panel, one per chamber. The center chamber has no side wall, so all three cups go on the back for a matching set.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eCargo-Floor Wedge Design\u003c\/h2\u003e\n\u003cp\u003eThe woofers mount on the vertical face and fire rearward toward the liftgate. The raked face goes against the rear seat back.\u003c\/p\u003e\n\u003cdiv class=\"po-grid\"\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eRaked Face Matches the Seat\u003c\/h4\u003e\n\u003cp\u003eA 20 degree rear panel follows the lean of a rear seat back.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e44 Inches Across\u003c\/h4\u003e\n\u003cp\u003eBuilt to span a cargo floor. Measure between the rear wheel wells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e17 Inches Tall\u003c\/h4\u003e\n\u003cp\u003eCheck it against your cargo cover and rear glass before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e15.17 Inches Deep at the Base\u003c\/h4\u003e\n\u003cp\u003eMeasure the cargo floor before you order.\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 Skar Audio VD-12\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 47.4 Hz anechoic, before cabin gain. Skar Audio does not publish driver displacement, so an estimated 0.085 cubic feet per driver is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers (Per Driver)\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVD-12 D2\u003c\/td\u003e\n\u003ctd\u003eQtc 0.876\u003c\/td\u003e\n\u003ctd\u003e56.2 Hz\u003c\/td\u003e\n\u003ctd\u003e47.4 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVD-12 D4\u003c\/td\u003e\n\u003ctd\u003eQtc 0.961\u003c\/td\u003e\n\u003ctd\u003e58.6 Hz\u003c\/td\u003e\n\u003ctd\u003e46.9 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eEach opening is cut to 11.280 in for the 12.6 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 8.98 in at the top to 15.17 in at the base, and the 4.95 in deep motor clears it with 3.73 in to spare. Three woofers across the 44 inch face, one centered on each chamber.\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 fold, sides and dividers 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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar Audio's Own Parameters\u003c\/h4\u003e\n\u003cp\u003eFs 35.3 Hz, Qts 0.550, Qes 0.620, Qms 4.420, Vas 43.5 L, Sd 505 cm2, Xmax 11 mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring Three Skar Audio VD-12 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eEach VD-12 D2 has two 2 ohm voice coils, 4 ohms in series or 1 ohm in parallel. With each driver's coils in series and the three cups in parallel, the three present 1.33 ohms to a mono amplifier. With each driver's coils in parallel and the three in series, they present 3 ohms. Three drivers do not reach the round loads a pair does, so check the result against your amplifier's minimum stable impedance before powering up. Each VD-12 D4 has two 4 ohm voice coils, 8 ohms in series or 2 ohms in parallel. With each driver's coils in series and the three cups in parallel, the three present 2.67 ohms to a mono amplifier. With each driver's coils in parallel and the three in series, they present 6 ohms. Three drivers do not reach the round loads a pair does, so check the result against your amplifier's minimum stable impedance before powering up. \u003c\/p\u003e\n\u003cp\u003eSkar Audio rates the driver at 500 watts RMS each, 1500 across all three. Recommended amplifier: 290 to 410 W RMS per driver, 870 to 1,230 W RMS for the full set of 3. Travel, not heat, sets the top: the cone reaches Xmax at 414 W per driver with a 25 Hz subsonic set, under the 500 W rating. The top of that range needs the 25 Hz subsonic; without it keep each driver under 394 W.\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 with the gloss black acrylic baffle insert, three pre-wired terminal cups on the rear panel, 12 gauge OFC. Polyfill wall lining installed in every chamber. Threaded inserts at every mounting location, stainless machine screws in the box. 1 year limited warranty. Enclosure only, the drivers are purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eTriple Skar Audio VD-12: 44 Inch SUV Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003e1.000 cubic feet net per driver at Qtc 0.876, F3 47.4 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":47357329047641,"sku":"PO 12T-S W VD12 BB","price":549.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47357329080409,"sku":"PO 12T-S W VD12 B","price":529.99,"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_d3ec0a14-e2e8-4d27-9b41-cbb9548ea084.jpg?v=1790818091"},{"product_id":"performance-optimized-wedge-wide-sealed-triple-12-enclosure-skar-audio-zvx-12v2","title":"Skar Audio ZVX-12v2 Triple Box: Sealed 12\" Wedge Wide Enclosure","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 Wide | Triple Skar Audio ZVX-12v2\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003eTriple 12\" Sealed Wedge Enclosure | Built for SUV Cargo Floors\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e1.152 ft3 Net per Driver\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e3.46 ft3 Net Total\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.60\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e3 Sealed Chambers\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e44\" x 17\" x 10.94\/17.13\"\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\u003eThree Skar Audio ZVX-12v2 in a 44 Inch Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe wide wedge is a fixed SUV platform: 44 inches across and 17 tall, built to span a cargo floor against the rear seat. Depth is the only dimension that moves, and it is solved for the driver. Here it runs 10.94 in at the top to 17.13 in at the base.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.152 cubic feet net per driver on Skar Audio's published Fs 44.0 Hz, Qts 0.450 and Vas 25.6 liters: Qtc 0.601, system resonance 58.8 Hz, half power 70.9 Hz. The 9.89 in deep motor sets the shallowest the wedge can be, and that smallest box is still more air than flat wants, so it lands below 0.707: tighter and more damped, trading a little extension for control.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThree Fully Separate Chambers\u003c\/h2\u003e\n\u003cp\u003eTwo bonded full-height 3\/4 inch MDF dividers split the cabinet into three sealed chambers of 1.152 cubic feet net, one driver each, so no driver loads another. Three pre-wired terminal cups on the rear panel, one per chamber. The center chamber has no side wall, so all three cups go on the back for a matching set.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eCargo-Floor Wedge Design\u003c\/h2\u003e\n\u003cp\u003eThe woofers mount on the vertical face and fire rearward toward the liftgate. The raked face goes against the rear seat back.\u003c\/p\u003e\n\u003cdiv class=\"po-grid\"\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eRaked Face Matches the Seat\u003c\/h4\u003e\n\u003cp\u003eA 20 degree rear panel follows the lean of a rear seat back.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e44 Inches Across\u003c\/h4\u003e\n\u003cp\u003eBuilt to span a cargo floor. Measure between the rear wheel wells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e17 Inches Tall\u003c\/h4\u003e\n\u003cp\u003eCheck it against your cargo cover and rear glass before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e17.13 Inches Deep at the Base\u003c\/h4\u003e\n\u003cp\u003eMeasure the cargo floor before you order.\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 Skar Audio ZVX-12v2\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 70.9 Hz anechoic, before cabin gain. Skar Audio does not publish driver displacement, so an estimated 0.168 cubic feet per driver is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers (Per Driver)\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZVX-12v2 D2\u003c\/td\u003e\n\u003ctd\u003eQtc 0.601\u003c\/td\u003e\n\u003ctd\u003e58.8 Hz\u003c\/td\u003e\n\u003ctd\u003e70.9 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eEach opening is cut to 11.250 in for the 12.62 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 10.94 in at the top to 17.13 in at the base, and the 9.89 in deep motor clears it with 0.75 in to spare. Three woofers across the 44 inch face, one centered on each chamber.\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 fold, sides and dividers 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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar Audio's Own Parameters\u003c\/h4\u003e\n\u003cp\u003eFs 44.0 Hz, Qts 0.450, Qes 0.500, Qms 6.100, Vas 25.6 L, Sd 510 cm2, Xmax 29 mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring Three Skar Audio ZVX-12v2 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eEach ZVX-12v2 D2 has two 2 ohm voice coils, 4 ohms in series or 1 ohm in parallel. With each driver's coils in series and the three cups in parallel, the three present 1.33 ohms to a mono amplifier. With each driver's coils in parallel and the three in series, they present 3 ohms. Three drivers do not reach the round loads a pair does, so check the result against your amplifier's minimum stable impedance before powering up. \u003c\/p\u003e\n\u003cp\u003eSkar Audio rates the driver at 1500 watts RMS each, 4500 across all three. Recommended amplifier: 1050 to 1500 W RMS per driver, 3,150 to 4,500 W RMS for the full set of 3.\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 with the gloss black acrylic baffle insert, three pre-wired terminal cups on the rear panel, 12 gauge OFC. Polyfill wall lining installed in every chamber. Threaded inserts at every mounting location, stainless machine screws in the box. 1 year limited warranty. Enclosure only, the drivers are purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eTriple Skar Audio ZVX-12v2: 44 Inch SUV Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003e1.152 cubic feet net per driver at Qtc 0.601, F3 70.9 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":47357331406937,"sku":"PO 12T-S W ZVX12V2 BB","price":549.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47357331439705,"sku":"PO 12T-S W ZVX12V2 B","price":529.99,"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_e850e1e1-0234-43f1-8a07-e067fa849208.jpg?v=1790818168"},{"product_id":"performance-optimized-wedge-wide-sealed-triple-10-enclosure-skar-audio-evl-10","title":"Skar Audio EVL-10 Triple Box: Sealed 10\" Wedge Wide Enclosure","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 Wide | Triple Skar Audio EVL-10\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003eTriple 10\" Sealed Wedge Enclosure | Built for SUV Cargo Floors\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e0.802 ft3 Net per Driver\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.41 ft3 Net Total\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.67\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e3 Sealed Chambers\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e40\" x 17\" x 8.21\/14.40\"\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\u003eThree Skar Audio EVL-10 in a 40 Inch Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe wide wedge is a fixed SUV platform: 40 inches across and 17 tall, built to span a cargo floor against the rear seat. Depth is the only dimension that moves, and it is solved for the driver. Here it runs 8.21 in at the top to 14.40 in at the base.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e0.802 cubic feet net per driver on Skar Audio's published Fs 44.0 Hz, Qts 0.590 and Vas 6.8 liters: Qtc 0.673, system resonance 50.2 Hz, half power 52.9 Hz. The 7.16 in deep motor sets the shallowest the wedge can be, and that smallest box is still more air than flat wants, so it lands below 0.707: tighter and more damped, trading a little extension for control.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eThree Fully Separate Chambers\u003c\/h2\u003e\n\u003cp\u003eTwo bonded full-height 3\/4 inch MDF dividers split the cabinet into three sealed chambers of 0.802 cubic feet net, one driver each, so no driver loads another. Three pre-wired terminal cups on the rear panel, one per chamber. The center chamber has no side wall, so all three cups go on the back for a matching set.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eCargo-Floor Wedge Design\u003c\/h2\u003e\n\u003cp\u003eThe woofers mount on the vertical face and fire rearward toward the liftgate. The raked face goes against the rear seat back.\u003c\/p\u003e\n\u003cdiv class=\"po-grid\"\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eRaked Face Matches the Seat\u003c\/h4\u003e\n\u003cp\u003eA 20 degree rear panel follows the lean of a rear seat back.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e40 Inches Across\u003c\/h4\u003e\n\u003cp\u003eBuilt to span a cargo floor. Measure between the rear wheel wells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e17 Inches Tall\u003c\/h4\u003e\n\u003cp\u003eCheck it against your cargo cover and rear glass before you order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e14.40 Inches Deep at the Base\u003c\/h4\u003e\n\u003cp\u003eMeasure the cargo floor before you order.\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 Skar Audio EVL-10\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 52.9 Hz anechoic, before cabin gain. Skar Audio does not publish driver displacement, so an estimated 0.092 cubic feet per driver is taken out of the net figure.\u003c\/p\u003e\n\u003ch3\u003eAlignment Numbers (Per Driver)\u003c\/h3\u003e\n\u003ctable class=\"df-tier\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003cth\u003eSystem Qtc\u003c\/th\u003e\n\u003cth\u003efc\u003c\/th\u003e\n\u003cth\u003eF3\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 D2\u003c\/td\u003e\n\u003ctd\u003eQtc 0.673\u003c\/td\u003e\n\u003ctd\u003e50.2 Hz\u003c\/td\u003e\n\u003ctd\u003e52.9 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVL-10 D4\u003c\/td\u003e\n\u003ctd\u003eQtc 0.703\u003c\/td\u003e\n\u003ctd\u003e51.0 Hz\u003c\/td\u003e\n\u003ctd\u003e51.3 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eEach opening is cut to 9.400 in for the 10.89 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 8.21 in at the top to 14.40 in at the base, and the 7.16 in deep motor clears it with 0.75 in to spare. Three woofers across the 40 inch face, one centered on each chamber.\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 fold, sides and dividers 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, the outer layer machined as a flush recess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eSkar Audio's Own Parameters\u003c\/h4\u003e\n\u003cp\u003eFs 44.0 Hz, Qts 0.590, Qes 0.660, Qms 5.440, Vas 6.8 L, Sd 314 cm2, Xmax 24 mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-section\"\u003e\n\u003ch2\u003eWiring Three Skar Audio EVL-10 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eEach EVL-10 D2 has two 2 ohm voice coils, 4 ohms in series or 1 ohm in parallel. With each driver's coils in series and the three cups in parallel, the three present 1.33 ohms to a mono amplifier. With each driver's coils in parallel and the three in series, they present 3 ohms. Three drivers do not reach the round loads a pair does, so check the result against your amplifier's minimum stable impedance before powering up. Each EVL-10 D4 has two 4 ohm voice coils, 8 ohms in series or 2 ohms in parallel. With each driver's coils in series and the three cups in parallel, the three present 2.67 ohms to a mono amplifier. With each driver's coils in parallel and the three in series, they present 6 ohms. Three drivers do not reach the round loads a pair does, so check the result against your amplifier's minimum stable impedance before powering up. \u003c\/p\u003e\n\u003cp\u003eSkar Audio rates the driver at 1000 watts RMS each, 3000 across all three. Recommended amplifier: 700 to 1000 W RMS per driver, 2,100 to 3,000 W RMS for the full set of 3.\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 with the gloss black acrylic baffle insert, three pre-wired terminal cups on the rear panel, 12 gauge OFC. Polyfill wall lining installed in every chamber. Threaded inserts at every mounting location, stainless machine screws in the box. 1 year limited warranty. Enclosure only, the drivers are purchased separately. Call or text 931-563-5151.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-cta\"\u003e\n\u003ch2\u003eTriple Skar Audio EVL-10: 40 Inch SUV Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003e0.802 cubic feet net per driver at Qtc 0.673, F3 52.9 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":47357556686937,"sku":"PO 10TW-S W EVL10 BB","price":479.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47357556719705,"sku":"PO 10TW-S W EVL10 B","price":459.99,"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_033391ce-a07c-44ed-8a30-c0d036d58998.jpg?v=1790823787"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/collections\/proline-x-micro-series-dual-15-sealed-enclosure-built-for-resonix-gus-15subwoofer-enclosuresproline-x-9360178_7a1a264c-c7f5-425a-bb3e-2e3af040b0ce.jpg?v=1790448064","url":"https:\/\/audiointensity.com\/collections\/skar-subwoofer-box.oembed?page=3","provider":"Audio Intensity","version":"1.0","type":"link"}