{"product_id":"performance-optimized-wedge-sealed-10-enclosure-dayton-audio-ultimax-ii-umii10","title":"Dayton Audio Ultimax II UMII10 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 | Dayton Audio Ultimax II UMII10\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\"\u003e1.39 ft3 Net\u003c\/span\u003e\u003cspan class=\"po-badge\"\u003e1.48 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\"\u003e29.50\" x 13\" x 8.85\/13.59\"\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 Dayton Audio Ultimax II UMII10 in a Sealed Wedge\u003c\/h2\u003e\n\u003cp\u003eThe UMII10 is Dayton's 10 inch Ultimax II: a woven carbon fiber cone, a 3 inch flat-wound four-layer copper coil, dual spiders, a large aluminum pole cap and a cast aluminum basket, rated 600 watts RMS with 20 mm of one-way excursion, 6.46 inches of mounting depth on a 10.47 inch frame. Every Thiele-Small figure comes from Dayton's own spec sheet, and it holds together: Qes and Qms reproduce the printed Qts, the moving mass matches the published Vas and cone area, and Qes follows from Bl, Re and Mms. Dayton's product page mislabels this driver's frame dimensions (its 'cutout' is the magnet), so the frame, cutout and mounting depth here are taken from the drawing on Dayton's spec sheet.\u003c\/p\u003e\n\u003cdiv class=\"po-highlight\"\u003e\u003cp\u003e1.39 cubic feet net on Dayton's published figures: the UMII10-22 (dual 2 ohm) reads Qtc 0.707 with resonance at 48.4 Hz and half power at 48.4 Hz. That is spread either side of maximally flat: the lower-Q coil a little drier, the higher-Q coil a little punchier.\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 Dayton Audio Ultimax II UMII10\u003c\/h2\u003e\n\u003cp\u003eAnechoic half power lands at 48.4 Hz, before any cabin gain. Dayton does not publish driver displacement (its Vd is the cone's swept volume), so an estimated 0.076 cubic feet per driver 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\u003eUltimax II UMII10 UMII10-22 (dual 2 ohm)\u003c\/td\u003e\n\u003ctd\u003eQtc 0.707\u003c\/td\u003e\n\u003ctd\u003e48.4 Hz\u003c\/td\u003e\n\u003ctd\u003e48.4 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 9.36 in for Dayton's 10.47 in frame. The rear panel rakes 20 degrees, so the cavity deepens from 8.85 in at the top to 13.59 in at the base, and the 6.46 in motor clears it with 1.31 in to spare. Dayton prints the UMII10's bolt circle, 9.92 inches, so the threaded inserts are pressed into the baffle at the shop and stainless machine screws are included: the driver drops in and bolts 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\u003eDayton's Published Parameters\u003c\/h4\u003e\n\u003cp\u003eUMII10-22 (dual 2 ohm): Fs 39 Hz, Qts 0.57, Qes 0.73, Qms 2.67, Vas 21.2 L, Mms 134 g, Bl 13.4 N\/A, Re 4 ohm. Cone area 345 cm2. Xmax 20 mm (70% Bl (Klippel)).\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 Dayton Audio Ultimax II UMII10 to Your Amplifier\u003c\/h2\u003e\n\u003cp\u003eDayton sells the UMII10 as UMII10-22 (dual 2 ohm): the UMII10-22 (dual 2 ohm) is two 2 ohm coils, 4 ohms in series or 1 ohm in parallel. A parallel load at or under 1 ohm needs an amplifier rated for it. Confirm the final load against your amplifier's minimum stable impedance before powering the system.\u003c\/p\u003e\n\u003cp\u003ePower handling is 600 watts RMS per driver. Aim for roughly 420 to 600 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 inserts pressed at Dayton's bolt circle, stainless machine screws included. 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\u003eDayton Audio Ultimax II UMII10: Cut for One Driver\u003c\/h2\u003e\n\u003cp\u003e1.39 cubic feet net at Qtc 0.71, F3 48.4 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":47424642613337,"sku":"PO 10-S W UMII10 BB","price":289.99,"currency_code":"USD","in_stock":true},{"title":"None","offer_id":47424642678873,"sku":"PO 10-S W UMII10 B","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/PO_10-S_W_UMII10_Front.jpg?v=1791682140","url":"https:\/\/audiointensity.com\/products\/performance-optimized-wedge-sealed-10-enclosure-dayton-audio-ultimax-ii-umii10","provider":"Audio Intensity","version":"1.0","type":"link"}