{"product_id":"alpine-r2-w12d2-r-series-12-inch-subwoofer","title":"Alpine R2-W12D2 | R-Series 12 inch Subwoofer | Dual 2 Ohm","description":"\u003cstyle\u003e\n .rf-wrap { max-width: 100%; font-family: inherit; color: #d1d5db !important; }\n .rf-hero { background: #111827 !important; border: 1px solid #1f2937 !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #b91c1c !important; }\n .rf-eyebrow { color: #9ca3af !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n .rf-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n .rf-hero p { color: #d1d5db !important; font-size: 16px; margin: 0 0 18px 0; }\n .rf-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n .rf-badge { background: #b91c1c !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n .rf-badge-alt { background: #1f2937 !important; color: #d1d5db !important; border: 1px solid #374151 !important; }\n .rf-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #b91c1c !important; padding-left: 12px; }\n .rf-wrap p, .rf-wrap li { color: #d1d5db !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n .rf-wrap a { color: #f87171 !important; text-decoration: underline; }\n .rf-callout { background: #1f2937 !important; border: 1px solid #374151 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n .rf-callout p { color: #d1d5db !important; margin: 0 0 8px 0; }\n .rf-table { width: 100%; border-collapse: collapse; margin: 16px 0 22px 0; font-size: 15px; }\n .rf-table th { background: #b91c1c !important; color: #ffffff !important; padding: 10px 12px; text-align: left; }\n .rf-table td { background: #111827 !important; color: #d1d5db !important; padding: 10px 12px; border-bottom: 1px solid #1f2937 !important; }\n .rf-cta { background: #111827 !important; border: 1px solid #1f2937 !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #b91c1c !important; }\n .rf-cta h3 { border-left: none !important; padding-left: 0; margin-top: 0; }\n @media (max-width: 600px) { .rf-table { font-size: 13px; } .rf-table th, .rf-table td { padding: 8px 6px; } }\n\u003c\/style\u003e\n\n\u003cdiv class=\"rf-wrap\"\u003e\n\n \u003cdiv class=\"rf-hero\"\u003e\n \u003cp class=\"rf-eyebrow\"\u003eAlpine 2nd-Gen R-Series Subwoofer\u003c\/p\u003e\n \u003ch2\u003eAlpine R2-W12D2 12 Inch Subwoofer\u003c\/h2\u003e\n \u003cp\u003e750 watts RMS and 20 mm of Xmax from Alpine's second-generation R-Series 12. Larger double-stacked magnets, 144 ounces of them, give the R2-W12D2 more motor force than the previous R-Series, and its low Qts makes it equally at home sealed or ported. Dual 2 ohm coils with configuration jumpers.\u003c\/p\u003e\n \u003cdiv class=\"rf-badges\"\u003e\n \u003cspan class=\"rf-badge\"\u003e750W RMS\u003c\/span\u003e\n \u003cspan class=\"rf-badge\"\u003e20 mm Xmax\u003c\/span\u003e\n \u003cspan class=\"rf-badge\"\u003eSealed or Ported\u003c\/span\u003e\n \u003cspan class=\"rf-badge rf-badge-alt\"\u003eDual 2 Ohm\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eA Bigger Motor for the R-Series\u003c\/h3\u003e\n \u003cp\u003eThe 2nd-gen R2 uses larger, double-stacked magnets for more motor force, with an integrated Faraday ring to cut distortion. The cone is Kevlar-reinforced pulp, the dust cap is a polypropylene and ceramic composite that is stiff but well damped, and Alpine's High Amplitude Multi-Roll (HAMR) rubber surround allows 20 mm of linear excursion and 72 mm of total mechanical travel while staying cool. It carries a 65.5 mm (2.6 inch) voice coil and push-type terminals that take up to 8 AWG wire.\u003c\/p\u003e\n \u003cp\u003eA cosmetic trim ring comes in the box, and Alpine's EZ-Change twist-lock mount takes the optional KTE-12G grille without screws.\u003c\/p\u003e\n\n \u003ch3\u003eWiring the Dual 2 Ohm Coils\u003c\/h3\u003e\n \u003cdiv class=\"rf-callout\"\u003e\n \u003cp\u003e\u003cstrong\u003eOne woofer:\u003c\/strong\u003e coils in parallel give a 1 ohm load, coils in series give 4 ohms. Alpine includes two jumper wires for either setup.\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eTwo woofers:\u003c\/strong\u003e wire each in series to 4 ohms and parallel the pair for a 2 ohm load.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cp\u003eAlpine rates the R2-W12D2 at 750 watts RMS and 2250 watts peak, with a recommended amplifier range of 300 to 750 watts RMS.\u003c\/p\u003e\n\n \u003ch3\u003eAlpine's Recommended Boxes\u003c\/h3\u003e\n \u003cp\u003eWith a Qts of 0.41, the R2-W12D2 works in both sealed and vented enclosures. These are Alpine's own figures for the D2.\u003c\/p\u003e\n \u003ctable class=\"rf-table\"\u003e\n \u003ctr\u003e\n\u003cth\u003eBox\u003c\/th\u003e\n\u003cth\u003eNet volume\u003c\/th\u003e\n\u003cth\u003eAlpine's result\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSealed range\u003c\/td\u003e\n\u003ctd\u003e0.55 to 1.0 cu ft\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eRecommended sealed (14\" x 14\" x 11\")\u003c\/td\u003e\n\u003ctd\u003e0.75 cu ft\u003c\/td\u003e\n\u003ctd\u003eQtc 0.65, F3 43 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eVented range\u003c\/td\u003e\n\u003ctd\u003e1.0 to 1.5 cu ft\u003c\/td\u003e\n\u003ctd\u003eTuned 33 to 37 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eRecommended vented (12.5\" x 14\" x 25.5\")\u003c\/td\u003e\n\u003ctd\u003e1.45 cu ft\u003c\/td\u003e\n\u003ctd\u003eTuned 36 Hz, F3 29 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/table\u003e\n \u003cp\u003eSealed at 0.75 cubic feet it is tight and controlled, with Qtc 0.65. Ported, the low Qts pays off: Alpine's vented box reaches an F3 of 29 Hz.\u003c\/p\u003e\n\n \u003ch3\u003eEnclosures We Cut for the R2-W12\u003c\/h3\u003e\n \u003cp\u003eWe build Proline X cabinets for this driver in Tullahoma, Tennessee, with its 10-7\/8 inch cutout and 6-1\/2 inch mounting depth cut direct fit:\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ca href=\"https:\/\/audiointensity.com\/products\/performance-optimized-wedge-sealed-12-enclosure-alpine-r2-w12\"\u003eSealed 12 inch wedge\u003c\/a\u003e, 0.75 cubic feet net, Alpine's recommended sealed volume.\u003c\/li\u003e\n \u003cli\u003e\n\u003ca href=\"https:\/\/audiointensity.com\/products\/performance-optimized-wedge-sealed-dual-12-enclosure-alpine-r2-w12\"\u003eSealed dual 12 inch wedge\u003c\/a\u003e for a pair, 0.75 cubic feet net per chamber.\u003c\/li\u003e\n \u003cli\u003e\n\u003ca href=\"https:\/\/audiointensity.com\/products\/performance-optimized-wedge-ported-12-enclosure-alpine-r2-w12\"\u003ePorted 12 inch wedge\u003c\/a\u003e, 1.56 cubic feet net tuned to 35.5 Hz.\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003cp\u003eAll three are listed in the Enclosures tab on this page. Short on depth? See the \u003ca href=\"https:\/\/audiointensity.com\/products\/alpine-rs-w12d2-r-series-shallow-12-inch-subwoofer\"\u003eAlpine RS-W12D2 shallow 12\u003c\/a\u003e, or everything we carry from Alpine on our \u003ca href=\"https:\/\/audiointensity.com\/collections\/alpine\"\u003eAlpine page\u003c\/a\u003e.\u003c\/p\u003e\n\n \u003cdiv class=\"rf-cta\"\u003e\n \u003ch3\u003eQuestions About Fitment or Wiring?\u003c\/h3\u003e\n \u003cp\u003eCall 931-563-5151 and talk to someone who installs these. We will help you pick the load and the box for your vehicle.\u003c\/p\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Alpine","offers":[{"title":"Default Title","offer_id":44960646889561,"sku":"R2W12D2","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/alpine-r2-w12d2-12-subwoofer-front.jpg?v=1790207357","url":"https:\/\/audiointensity.com\/products\/alpine-r2-w12d2-r-series-12-inch-subwoofer","provider":"Audio Intensity","version":"1.0","type":"link"}