{"product_id":"performance-optimized-wedge-wide-sealed-dual-15-enclosure-stereo-integrity-sql-15","title":"Performance Optimized Wedge Wide Sealed Dual 15\" Enclosure | Stereo Integrity SQL-15","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 | Dual Stereo Integrity SQL-15\u003c\/p\u003e\n\u003cp class=\"po-subtitle\"\u003eDual 15\" Sealed Wide Wedge Enclosure | 44\" Wide, 18\" Tall\u003c\/p\u003e\n\u003cdiv class=\"po-badges\"\u003e\n\u003cspan class=\"po-badge\"\u003e2.00 ft3 Net per Chamber\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e4.40 ft3 Gross\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.82\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eTwo Separate Chambers\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e44\" x 18\" x 10.83\/17.38\"\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 Stereo Integrity SQL-15 in a Wide Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThis is the wide version of PO 15D-S W SQL: a 44 inch by 18 inch face that spreads two SQL-15 across a cargo floor and keeps the cabinet shallow. The SQL-15 is Stereo Integrity's 15 inch, 1000 watts RMS, 26 mm of one-way excursion on 823 square centimeters of cone, and 7.4 inches of mounting depth. Every figure comes from the parameter table Stereo Integrity publishes for the SQL-15. One set covers both the dual 2 and dual 4 ohm versions, which share the frame, the 14.17 in cutout and the 7.4 in mounting depth.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e2.00 cubic feet net per chamber is the same 2.00 cubic feet per chamber as the standard dual wedge, PO 15D-S W SQL, so the wide version sounds the same and only the cabinet shape changes. On Stereo Integrity's figures, Fs 33.0 Hz, Qts 0.57 and Vas 59.4 liters, that is Qtc 0.816 with half power at 41.8 Hz.\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 2.00 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 44 inches wide, 18 tall, 10.83 inches deep at the top and 17.38 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\u003eWide Wedge Design Explained\u003c\/h2\u003e\n\u003cp\u003eThe drivers mount on the vertical face and fire rearward; the back panel rakes 20 degrees to sit against the rear seat.\u003c\/p\u003e\n\u003cdiv class=\"po-grid\"\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e44 Inches Across\u003c\/h4\u003e\n\u003cp\u003eWider than the standard dual, so the cabinet stays shallower and spreads the pair across the floor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003e18 Inches Tall\u003c\/h4\u003e\n\u003cp\u003eOne height for this wide dual, low enough to clear most cargo covers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eRaked Seat-Side Face\u003c\/h4\u003e\n\u003cp\u003eMatches the roughly 20 degree lean of a factory rear seat back.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"po-card\"\u003e\n\u003ch4\u003eCargo Space Kept\u003c\/h4\u003e\n\u003cp\u003e17.38 inches at the base, so the floor 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 Stereo Integrity SQL-15\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 41.8 Hz anechoic, before any cabin gain. Above Qtc 0.707 the response carries a small lift near 47 Hz before the rolloff, and F3 sits below fc. The 0.16 cubic foot driver displacement 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\u003eSQL-15, dual 2 or dual 4 ohm\u003c\/td\u003e\n\u003ctd\u003eQtc 0.816\u003c\/td\u003e\n\u003ctd\u003e47.2 Hz\u003c\/td\u003e\n\u003ctd\u003e41.8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMounting Geometry\u003c\/h3\u003e\n\u003cp\u003eBoth baffle openings are cut to 14.17 in under the 15.55 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 10.83 in at the top to 17.38 in at the base, and the 7.4 in motor clears it with 3.32 in to spare. Threaded inserts are pressed into the baffle backside at every mounting location before it ships, and stainless machine screws are included, so each SQL-15 drops into its recess and bolts straight 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\u003ePublished Parameters\u003c\/h4\u003e\n\u003cp\u003eFs 33.0 Hz, Qts 0.57, Qes 0.61, Qms 7.60, Vas 59.4 L, Sd 823 cm2, 87.0 dB 1W\/1m.\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 Stereo Integrity SQL-15 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eA pair lands on 0.5 ohm with all four coils in parallel, 2 ohms as series pairs in parallel, or 8 ohms all in series with dual 2 ohm drivers; 1, 4 or 16 ohms the same three ways with dual 4 ohm drivers. 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 in both chambers. Threaded inserts pressed in at every mounting location, stainless machine screws included. 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 Stereo Integrity SQL-15: 44 Inch Wide Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003e2.00 cubic feet net per chamber at Qtc 0.816, F3 41.8 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":47380480229465,"sku":"PO 15DW-S W SQL BB","price":539.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47380480262233,"sku":"PO 15DW-S W SQL B","price":519.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_15DW-S_W_SQL_Front.jpg?v=1791216269","url":"https:\/\/audiointensity.com\/products\/performance-optimized-wedge-wide-sealed-dual-15-enclosure-stereo-integrity-sql-15","provider":"Audio Intensity","version":"1.0","type":"link"}