{"product_id":"performance-optimized-down-fire-sealed-12-enclosure-wavtech-thinpro12","title":"Performance Optimized Down Fire Sealed 12\" Enclosure | Wāvtech thinPRO12","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 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(184,115,51,.18);border:1px solid #b87333;color:#e8b98d;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 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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:6px}.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}@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\u003cdiv class=\"df-wrap\"\u003e\n\u003cdiv class=\"df-hero\"\u003e\n\u003ch2\u003eProline X PO Down Fire 12\" Sealed\u003c\/h2\u003e\n\u003cp\u003eCut and tuned for the Wāvtech thinPRO12\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\"\u003e0.60 cu ft Net\u003c\/span\u003e\u003cspan class=\"df-badge\"\u003eManufacturer Preferred Volume\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\"\u003e0.60\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\"\u003e0.857\u003c\/span\u003e\u003cspan class=\"l\"\u003esystem Qtc, 2 ohm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e41.4 Hz\u003c\/span\u003e\u003cspan class=\"l\"\u003eF3 rolloff, 2 ohm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e5.25 in\u003c\/span\u003e\u003cspan class=\"l\"\u003ecabinet height\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eBuilt Around the thinPRO12\u003c\/h3\u003e\n\u003cp\u003eNothing about this cabinet is generic. The baffle is bored to the thinPRO12's \u003cstrong\u003e11.125 inch, 282mm cutout\u003c\/strong\u003e, and the internal height is set by its \u003cstrong\u003e3.0 inch mounting depth\u003c\/strong\u003e. Overall diameter with the gasket is 13.0625 inches, so the driver takes most of the 15 inch depth of the cabinet. The finished box stands \u003cstrong\u003e5.25 inches tall\u003c\/strong\u003e on a 30 by 15 inch footprint and puts a full 12 where a 12 does not normally go.\u003c\/p\u003e\n\u003cp\u003eThe driver is offered as the \u003cstrong\u003ethinPRO12-2\u003c\/strong\u003e (2 ohm SVC) or the \u003cstrong\u003ethinPRO12-4\u003c\/strong\u003e (4 ohm SVC). Both are rated \u003cstrong\u003e750 watts RMS and 2250 watts peak\u003c\/strong\u003e, with 20mm of one way linear excursion and 54mm of peak to peak mechanical travel. Effective piston area is 510.7 cm squared, published displacement is 0.042 cubic feet, and Vas is 42 liters.\u003c\/p\u003e\n\u003cp\u003eThe parameters are what make the alignment work. Fs is \u003cstrong\u003e25 Hz on the -2 and 26 Hz on the -4\u003c\/strong\u003e, with Qts of 0.49 and 0.46. A 5 inch four layer high temp voice coil rides on a vented polyimide composite former, the cone is honeycomb Nomex and glass fiber composite, and the suspension pairs a high excursion double roll NBR surround with \u003cstrong\u003edual internal mirrored NBR spiders\u003c\/strong\u003e. The motor is an FEA optimized dual gap structure with double stacked strontium magnets in a vented cast aluminum frame.\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\u003e0.60 cubic feet net\u003c\/strong\u003e from a 0.64 cubic foot gross cavity, and that net figure matches Wāvtech's own preferred sealed volume exactly. There is no compromise to explain here: the volume the manufacturer asks for is the volume the cabinet holds after panels, bracing and the driver's 0.042 cubic feet of displacement are accounted for.\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 published displacement, not estimated from external dimensions minus wall thickness.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003ethinPRO12-2\u003c\/strong\u003e lands at \u003cstrong\u003eQtc 0.857 with F3 at 41.4 Hz\u003c\/strong\u003e. The \u003cstrong\u003ethinPRO12-4\u003c\/strong\u003e lands at \u003cstrong\u003eQtc 0.856 with F3 at 41.4 Hz\u003c\/strong\u003e, a better damped alignment that gives up about three hertz of extension. Both are single voice coil, so your final impedance is set by which model you buy, not by wiring. Re measures 1.85 ohms on the -2 and 3.3 ohms on the -4. If you want to see what a different airspace would do with the same parameters, the \u003ca class=\"df-link\" href=\"\/pages\/sealed-box-calculator\"\u003esealed box calculator\u003c\/a\u003e uses the same math.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eThe Numbers Agree With Wāvtech's Own\u003c\/h3\u003e\n\u003cp\u003eWāvtech publishes \u003cstrong\u003eQtc 0.86 with F3 at 41.4 Hz\u003c\/strong\u003e for the -2 and \u003cstrong\u003eQtc 0.86 with F3 at 42 Hz\u003c\/strong\u003e for the -4, both at this exact volume. Running their own published Qts and Vas through standard sealed box math independently gives 0.912 at 38.3 Hz and 0.856 at 41.4 Hz. That is agreement within a hertz on both variants and within five thousandths on Qtc.\u003c\/p\u003e\n\u003cp\u003eIt is worth stating plainly. Several manufacturers in this category publish enclosure tables that disagree with their own driver parameters by 10 Hz or more, which forces us to publish computed figures and explain the discrepancy. Wāvtech's numbers hold up, so we build their preferred volume and quote both sets.\u003c\/p\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, 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. The cabinet is perimeter cross-braced and pre-filled with polyfill. Corners are square on Down Fire cabinets.\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, which matters with an 11.125 inch cutout in a 5.25 inch cabinet. Mounting is into 8\/32 threaded inserts with stainless machine screws.\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\u003eManufacturer Preferred Volume\u003c\/h4\u003e\n\u003cp\u003eThe cavity is machined to land at \u003cstrong\u003e0.60 cubic feet net\u003c\/strong\u003e, the volume Wāvtech specifies for this driver. Gross cavity is 0.64 cubic feet; the difference is panel work, bracing and driver displacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003eDown Firing Into the Floor\u003c\/h3\u003e\n\u003cp\u003eThe driver fires downward into the floor and the cabinet is floor coupled. The sealed rolloff meets rising cabin gain below 60 Hz, so in car response extends well below the anechoic figure. All external dimensions are stated \u003cstrong\u003emeasured in the down fire position\u003c\/strong\u003e: 30 inches wide, 15 inches deep, 5.25 inches tall.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ENCLOSURE PERFORMANCE SLOT --\u003e\u003cdiv class=\"df-section\"\u003e\n\u003ch3\u003ePower and Warranty\u003c\/h3\u003e\n\u003cp\u003eThe thinPRO12 is rated \u003cstrong\u003e750 watts RMS and 2250 watts peak\u003c\/strong\u003e, and Wāvtech's own recommended power range is \u003cstrong\u003e250 to 750 watts RMS\u003c\/strong\u003e. Sensitivity is 83 dB on the thinPRO12-2 and 84 dB on the thinPRO12-4, which is on the low side; that is the tradeoff for 20mm of excursion in a 3.0 inch frame. Aim for the upper half of the recommended range.\u003c\/p\u003e\n\u003cp\u003eThe enclosure carries a 1 year limited warranty. Bring your own thinPRO12-2 or thinPRO12-4; 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\u003eOne cabinet, one driver, one set of numbers. Cut on ShopSabre CNC routers from Langboard Elite MDF and built one at a time in Tullahoma, Tennessee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44540853846105,"sku":"PO 12-S DF thinPRO","price":249.99,"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_a9682a92-a2a5-46f0-925b-7cfc7eb9a0c9.jpg?v=1787119682","url":"https:\/\/audiointensity.com\/products\/performance-optimized-down-fire-sealed-12-enclosure-wavtech-thinpro12","provider":"Audio Intensity","version":"1.0","type":"link"}