{"product_id":"stereo-integrity-bm-11-shallow-subwoofer","title":"Stereo Integrity BM-11 | 11 Inch Shallow-Mount Subwoofer","description":"\u003cstyle\u003e\n.si-desc{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#1e293b;max-width:1200px;margin:0 auto;background:#ffffff}\n.si-hero{background:linear-gradient(135deg,#0b0b0c 0%,#2d3139 100%);padding:52px 36px;text-align:center;color:#ffffff}\n.si-hero .si-brand{font-size:.85em;letter-spacing:.3em;text-transform:uppercase;color:#cbd5e1;margin:0 0 10px 0}\n.si-hero .si-title{font-size:2.4em;font-weight:800;letter-spacing:1px;margin:0 0 8px 0;color:#ffffff}\n.si-hero .si-subtitle{font-size:1.15em;font-weight:300;color:#e2e8f0;margin:0 0 22px 0}\n.si-badges{display:flex;justify-content:center;flex-wrap:wrap;gap:10px}\n.si-badge{background:rgba(255,255,255,.08);border:1px solid #9ca3af;color:#f8fafc;padding:7px 18px;border-radius:20px;font-size:.88em;font-weight:600}\n.si-section{padding:44px 36px;border-bottom:1px solid #e2e8f0;background:#ffffff}\n.si-section.si-alt{background:#f5f6f8}\n.si-section h2{color:#111827;font-size:1.8em;font-weight:700;margin:0 0 18px 0;padding-bottom:10px;border-bottom:3px solid #B91C1C}\n.si-section p{font-size:1.04em;color:#334155;margin:0 0 15px 0}\n.si-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:22px 0}\n.si-card{background:#ffffff;border:1px solid #e2e8f0;border-top:4px solid #B91C1C;border-radius:8px;padding:20px}\n.si-card h3{color:#111827;font-size:1.08em;font-weight:700;margin:0 0 8px 0}\n.si-card p{font-size:.97em;color:#475569;margin:0}\n.si-note{background:#f5f6f8;border-left:5px solid #B91C1C;padding:18px 22px;margin:22px 0;border-radius:0 8px 8px 0}\n.si-note p{margin:0;color:#334155}\n.si-link{display:inline-block;background:#B91C1C;color:#ffffff;text-decoration:none;font-weight:700;padding:12px 24px;border-radius:8px;margin:6px 0}\n.si-cta{background:linear-gradient(135deg,#0b0b0c 0%,#2d3139 100%);padding:44px 36px;text-align:center;color:#ffffff}\n.si-cta h2{color:#ffffff;font-size:1.6em;margin:0 0 12px 0}\n.si-cta p{color:#e5e7eb;font-size:1.04em;margin:0 0 8px 0}\n@media (max-width:600px){.si-grid{grid-template-columns:1fr}.si-hero,.si-section,.si-cta{padding:34px 18px}.si-hero .si-title{font-size:1.8em}}\n\u003c\/style\u003e\n\u003cdiv class=\"si-desc\"\u003e\n\u003cdiv class=\"si-hero\"\u003e\n\u003cp class=\"si-brand\"\u003eStereo Integrity\u003c\/p\u003e\n\u003cp class=\"si-title\"\u003eBM-11\u003c\/p\u003e\n\u003cp class=\"si-subtitle\"\u003e11 Inch Shallow-Mount Subwoofer | Sold Individually\u003c\/p\u003e\n\u003cdiv class=\"si-badges\"\u003e\n\u003cspan class=\"si-badge\"\u003e3.09 in Mounting Depth\u003c\/span\u003e \u003cspan class=\"si-badge\"\u003e13 mm One-Way Xmax\u003c\/span\u003e \u003cspan class=\"si-badge\"\u003e500W RMS\u003c\/span\u003e \u003cspan class=\"si-badge\"\u003eDual 2 Ohm\u003c\/span\u003e \u003cspan class=\"si-badge\"\u003eCarbon Fiber Flat Piston\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"si-section\"\u003e\n\u003ch2\u003eShallow Without Giving Up the Bass\u003c\/h2\u003e\n\u003cp\u003eThe BM-11 is Stereo Integrity's answer to the usual shallow subwoofer compromise. It is an 11 inch driver that mounts in just over 3 inches, yet it still offers 13 mm of one-way linear excursion. Stereo Integrity tooled a new basket, a flat carbon fiber diaphragm, and a low profile S surround to make that work, and the whole driver weighs 16 pounds.\u003c\/p\u003e\n\u003cp\u003eMotor strength and moving mass are balanced so the BM-11 covers a wide bandwidth for a shallow design, with an in-vehicle response of 16 Hz to 550 Hz. It is approved for infinite baffle use as well as small sealed enclosures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"si-section si-alt\"\u003e\n\u003ch2\u003eHow It Fits in 3 Inches\u003c\/h2\u003e\n\u003cdiv class=\"si-grid\"\u003e\n\u003cdiv class=\"si-card\"\u003e\n\u003ch3\u003eTen-Piece Neo Column Motor\u003c\/h3\u003e\n\u003cp\u003eA multi-piece neodymium column motor drives the 3 inch copper voice coil through two magnetic gaps. A shorting ring sits between the gaps to lower and linearize inductance for fast, controlled bass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"si-card\"\u003e\n\u003ch3\u003eXBL^2 Topology\u003c\/h3\u003e\n\u003cp\u003eThe dual gap XBL^2 layout reduces inductance and extends linear travel, giving the BM-11 13 mm of one-way excursion measured to 70 percent Bl.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"si-card\"\u003e\n\u003ch3\u003eFlat Carbon Fiber Piston\u003c\/h3\u003e\n\u003cp\u003eThe glossy carbon fiber sandwich diaphragm is flat, which keeps the front profile low and the moving assembly stiff.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"si-card\"\u003e\n\u003ch3\u003eCustom S Surround\u003c\/h3\u003e\n\u003cp\u003eThe tooled S surround has an integrated gasket and is shaped for as much surface area as possible while still leaving mechanical travel past the linear limit of the motor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"si-section\"\u003e\n\u003ch2\u003eEnclosure and Power\u003c\/h2\u003e\n\u003cp\u003eStereo Integrity rates the BM-11 at 500 watts RMS with dual 2 ohm voice coils. Its specification sheet lists a 0.40 cubic foot sealed enclosure, with a range of 0.35 to 0.70 cubic feet, and the driver itself displaces only 0.03 cubic feet. It is also approved for infinite baffle installs.\u003c\/p\u003e\n\u003cdiv class=\"si-note\"\u003e\u003cp\u003e\u003cstrong\u003eBuilt for this driver:\u003c\/strong\u003e Proline X builds Performance Optimized enclosures designed around the BM-11 at our shop in Tennessee, including sealed wedge builds for one, two, or three drivers, a ported wedge, and a sealed down-fire.\u003c\/p\u003e\u003c\/div\u003e\n\u003ca class=\"si-link\" href=\"\/collections\/stereo-integrity-subwoofer-box\"\u003eShop Proline X Enclosures for Stereo Integrity\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"si-section si-alt\"\u003e\n\u003ch2\u003eWiring\u003c\/h2\u003e\n\u003cp\u003eThe BM-11 comes in one configuration, dual 2 ohm. The two coils wire to a 1 ohm load in parallel or a 4 ohm load in series, so plan the amplifier and the number of drivers together.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"si-section\"\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cdiv class=\"si-note\"\u003e\u003cp\u003e\u003cstrong\u003eCutout:\u003c\/strong\u003e 10.0 in. \u003cstrong\u003eOuter diameter:\u003c\/strong\u003e 11.14 in. \u003cstrong\u003eMounting depth:\u003c\/strong\u003e 3.09 in. \u003cstrong\u003eDisplacement:\u003c\/strong\u003e 0.03 cu ft. \u003cstrong\u003eWeight:\u003c\/strong\u003e 16 lb.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"si-cta\"\u003e\n\u003ch2\u003eAuthorized Stereo Integrity Dealer\u003c\/h2\u003e\n\u003cp\u003eAudio Intensity is an authorized Stereo Integrity dealer, and we build enclosures around their drivers.\u003c\/p\u003e\n\u003cp\u003eCall 931-563-5151 and we will help you plan a BM-11 install, from enclosure to amplifier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Stereo Integrity","offers":[{"title":"Default Title","offer_id":44924047229017,"sku":"SI-BM11","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/stereo-integrity-bm-11-subwoofer-pair.jpg?v=1789576184","url":"https:\/\/audiointensity.com\/products\/stereo-integrity-bm-11-shallow-subwoofer","provider":"Audio Intensity","version":"1.0","type":"link"}