{"product_id":"performance-optimized-wedge-wide-sealed-quad-10-enclosure-sundown-audio-horizon-hz-10","title":"Performance Optimized Wedge Wide Sealed Quad 10\" Enclosure | Sundown Audio Horizon HZ 10","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 Sundown Audio Horizon HZ 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\"\u003e0.535 ft3 Net per Driver\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2.14 ft3 Net Total\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003eQtc 0.74\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e2 Sealed Chambers\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e44\" x 17\" x 6.85\/13.04\"\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 Sundown Audio Horizon HZ 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 6.85 in at the top to 13.04 in at the base.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e0.535 cubic feet net per driver on Sundown Audio's published Fs 33.1 Hz, Qts 0.466 and Vas 22.9 liters: Qtc 0.738, system resonance 52.4 Hz, half power 50.3 Hz. The maker's recommended sealed size is 0.50 cubic feet per driver, but the 5.80 in deep motor sets the shallowest the wedge can be, so it comes down only to 0.535: effectively flat, under 0.1 dB of lift near resonance.\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 1.069 cubic feet net. Each chamber carries two drivers, so each driver works into 0.535 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\u003eThe four 10.45 in frames sit in one row across the 44 inch face, two to each chamber, with the cutouts held clear of the sides and the center divider.\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\u003e13.04 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 Sundown Audio Horizon HZ 10\u003c\/h2\u003e\n\u003cp\u003eHalf power lands at 50.3 Hz anechoic, before cabin gain. Sundown Audio publishes 0.100 cubic feet of driver displacement and it is taken out of the net figure for every driver.\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\u003eHorizon HZ 10 D4\u003c\/td\u003e\n\u003ctd\u003eQtc 0.738\u003c\/td\u003e\n\u003ctd\u003e52.4 Hz\u003c\/td\u003e\n\u003ctd\u003e50.3 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 9.200 in for the 10.45 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 6.85 in at the top to 13.04 in at the base, and the 5.80 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\u003eSundown Audio's Own Parameters\u003c\/h4\u003e\n\u003cp\u003eFs 33.1 Hz, Qts 0.466, Qes 0.539, Qms 3.430, Vas 22.9 L, Sd 339 cm2, Xmax 14 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 Sundown Audio Horizon HZ 10 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eEach Horizon HZ 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\u003eSundown Audio rates the driver at 500 watts RMS each, 2000 across all four. Recommended amplifier: 350 to 500 W RMS per driver, 1,400 to 2,000 W RMS for the full set of 4. The top of that range needs the 25 Hz subsonic; without it keep each driver under 496 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, 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 Sundown Audio Horizon HZ 10: 44 Inch SUV Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003e0.535 cubic feet net per driver at Qtc 0.738, F3 50.3 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":47357307387993,"sku":"PO 10Q-S W HZ10 BB","price":489.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47357307420761,"sku":"PO 10Q-S W HZ10 B","price":469.99,"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_9b407de9-e801-4f60-948d-edbb374c7258.jpg?v=1790817416","url":"https:\/\/audiointensity.com\/products\/performance-optimized-wedge-wide-sealed-quad-10-enclosure-sundown-audio-horizon-hz-10","provider":"Audio Intensity","version":"1.0","type":"link"}