{"product_id":"audiocontrol-space-spc-12-dual-box-sealed-12-shallow-wedge-enclosure","title":"AudioControl Space SPC-12 Dual Box: Sealed 12\" Shallow 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 AudioControl Space SPC-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\"\u003e1.25 ft3 Net per Chamber\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.69 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.74 to 0.85\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eTwo Separate Chambers\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e32.00\" x 16\" x 10.96\/16.79\"\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 AudioControl Space SPC-12 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe SPC-12 is AudioControl's 12 inch Space low-profile: a fiber matrix injection-molded polypropylene cone, a weather-resistant build, a three-layer high-temperature coil former and a wrap-sealed rubber gasket, with a removable grille, rated 400 watts RMS with 9 mm of one-way excursion, 3.94 inches of mounting depth on a 12.37 inch frame. Every Thiele-Small figure comes from AudioControl's own Space Series user guide, one full parameter block per coil, and each block holds together on Qts, moving mass, cone area and sensitivity. AudioControl measures the 2 ohm and 4 ohm versions as separate drivers, and they differ, so each is aligned on its own figures below.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.25 cubic feet net per chamber on AudioControl's published figures: the SPC-12S2 (single 2 ohm) reads Qtc 0.743 with resonance at 49.1 Hz and half power at 46.8 Hz, and the SPC-12S4 (single 4 ohm) reads Qtc 0.850 with resonance at 52.3 Hz and half power at 44.9 Hz. One cabinet serves both coils. That is AudioControl's own recommended sealed size for this driver, 1.25 cubic feet, between their 0.8 minimum and 1.7 maximum. That is a touch above maximally flat: a small lift near resonance and firm midbass.\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 1.25 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 pinned at the 32 inch dual width cap, 16 inches tall, 10.96 inches deep at the top and 16.79 at the base, with the depth absorbing the airspace. 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 Woofers\u003c\/h4\u003e\n\u003cp\u003eVertical baffle, cones 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 AudioControl Space SPC-12\u003c\/h2\u003e\n\u003cp\u003eAnechoic half power lands at 46.8 Hz on the SPC-12S2 (single 2 ohm) and 44.9 Hz on the SPC-12S4 (single 4 ohm), before any cabin gain. AudioControl publishes the driver displacement, 0.0619 cubic feet, and it is taken out of the net figure for each driver.\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\u003eSpace SPC-12 SPC-12S2 (single 2 ohm)\u003c\/td\u003e\n\u003ctd\u003eQtc 0.743\u003c\/td\u003e\n\u003ctd\u003e49.1 Hz\u003c\/td\u003e\n\u003ctd\u003e46.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpace SPC-12 SPC-12S4 (single 4 ohm)\u003c\/td\u003e\n\u003ctd\u003eQtc 0.850\u003c\/td\u003e\n\u003ctd\u003e52.3 Hz\u003c\/td\u003e\n\u003ctd\u003e44.9 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 11.100 in for AudioControl's 12.370 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 10.96 in at the top to 16.79 in at the base, and the 3.94 in motor clears it with 6.53 in to spare. AudioControl prints no bolt circle for the SPC-12, so the baffle ships undrilled with a threaded insert kit and stainless machine screws: set the driver in its recess, mark its holes, drill and press the inserts.\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\u003eAudioControl's Published Parameters\u003c\/h4\u003e\n\u003cp\u003eSPC-12S2 (single 2 ohm): Fs 27.843 Hz, Qts 0.4216, Qes 0.4703, Qms 4.0762, Vas 74.5578 L, Mms 159.609 g, Bl 10.3379 N\/A, Re 1.8 ohm. SPC-12S4 (single 4 ohm): Fs 30.7061 Hz, Qts 0.4996, Qes 0.5764, Qms 3.7494, Vas 67.1494 L, Mms 145.71 g, Bl 12.4924 N\/A, Re 3.2 ohm. Cone area 511 cm2. Xmax 9 mm (one-way, method not stated).\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 AudioControl Space SPC-12 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eAudioControl sells the SPC-12 as SPC-12S2 (single 2 ohm) and SPC-12S4 (single 4 ohm); a matched pair should share a coil. A pair of single 2 ohm drivers lands on 1 ohm in parallel or 4 ohms in series. A pair of single 4 ohm drivers lands on 2 ohms in parallel or 8 ohms in series. Anything under 1 ohm, and many amplifiers at 1 ohm, is outside what the amplifier is built for, so 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 400 watts RMS per driver, 800 across the pair. Aim for roughly 280 to 400 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 included (AudioControl publishes no bolt circle). 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 AudioControl Space SPC-12: Cut for One Driver\u003c\/h2\u003e\n\u003cp\u003e1.25 cubic feet net per chamber at Qtc 0.74 to 0.85, F3 46.8 Hz on the SPC-12S2 (single 2 ohm) and 44.9 Hz on the SPC-12S4 (single 4 ohm), 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":47457492238425,"sku":"PO 12D-S W SPC12 BB","price":409.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47457492336729,"sku":"PO 12D-S W SPC12 B","price":389.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_12D-S_W_SPC12_Front.jpg?v=1791932624","url":"https:\/\/audiointensity.com\/products\/audiocontrol-space-spc-12-dual-box-sealed-12-shallow-wedge-enclosure","provider":"Audio Intensity","version":"1.0","type":"link"}