{"product_id":"rockford-fosgate-r2d4-12-12-dual-4-ohm-subwoofer","title":"Rockford Fosgate R2D4-12 12\" Dual 4-Ohm Subwoofer","description":"\u003cp\u003eThe Rockford Fosgate R2D4-12 is a 12-inch dual voice coil car subwoofer designed to add controlled low-frequency output to an aftermarket audio system. Its dual 4-ohm voice coils provide wiring flexibility when matching a compatible mono or multi-channel amplifier. This model is intended for custom sealed or ported subwoofer enclosures rather than direct factory-speaker replacement.\u003c\/p\u003e\u003cp\u003eRated for 250 watts RMS and 500 watts peak, the R2D4-12 is suited to systems built around moderate-power bass amplification. It is a practical choice for listeners who want fuller impact from kick drums, bass guitar, and electronic low end without selecting a high-power competition-oriented driver. Amplifier output should be matched to the RMS rating and final wired impedance.\u003c\/p\u003e\u003cp\u003eThe mica-injected polypropylene cone is paired with a high-density poly-foam surround to support consistent cone movement. A poly-cotton spider and high-temperature copper voice coil with aluminum former are used in the moving assembly. Together, these components are designed for everyday bass reproduction in a properly configured enclosure.\u003c\/p\u003e\u003cp\u003eRockford Fosgate uses optimized motor magnetics, an extended pole piece, and a bumped vented backplate in this model. These details support voice-coil ventilation and excursion control during operation. Flexible stitched-on lead wires and multi-point neck-joint bonding further support the driver’s mechanical construction.\u003c\/p\u003e\u003cp\u003eThe R2D4-12 can be used in either a sealed enclosure for a more compact installation or a ported enclosure for lower modeled bass extension. Its recommended sealed and ported box alignments provide a starting point for a system-specific build. With its dual 4-ohm coil configuration, it can be incorporated into single-subwoofer or multi-subwoofer systems with appropriate impedance planning.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual 4-Ohm Voice Coils:\u003c\/strong\u003e Supports flexible series or parallel wiring options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e250-Watt RMS Rating:\u003c\/strong\u003e Matches moderate-power subwoofer amplification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-Inch Subwoofer:\u003c\/strong\u003e Adds low-frequency output to aftermarket car audio systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolypropylene Cone:\u003c\/strong\u003e Provides a durable, lightweight moving surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVented Motor Design:\u003c\/strong\u003e Supports thermal management around the voice coil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed or Ported Use:\u003c\/strong\u003e Works with two manufacturer-recommended enclosure alignments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe R2D4-12 uses an injection-molded polypropylene cone, sealed half-roll poly-foam surround, tear- and fatigue-resistant poly-cotton spider, and heavy-gauge stamped-steel frame. Its high-temperature copper voice coil uses an aluminum former, while all-metal compression terminals provide the amplifier connection point. A removable semi-flexible PVC motor cover is also part of the design.\u003c\/p\u003e\u003cp\u003eAllow for a 5.067-inch mounting depth and an 11.25-inch mounting cutout diameter when planning the enclosure baffle. Rockford Fosgate lists a 1.02-cubic-foot sealed enclosure or a 1.79-cubic-foot ported enclosure tuned to 45 Hz as recommended starting points. Wire both voice coils correctly and use an amplifier whose stable load rating matches the final impedance configuration.\u003c\/p\u003e","brand":"Rockford Fosgate","offers":[{"title":"Default Title","offer_id":45642149986374,"sku":"R2D412","price":119.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71a5HxZ8ZFL.jpg?v=1784435926","url":"https:\/\/audiowatt.store\/products\/rockford-fosgate-r2d4-12-12-dual-4-ohm-subwoofer","provider":"Audio Watt Store","version":"1.0","type":"link"}