Pioneer Ts-d12d4 12" Dual 4 Ohm Voice Coil 2000 Watt Max Subwoofer for sale online | eBay
KENWOOD KFC-W3041 12-Inch 2,000-Watt Max Subwoofer in the Mobile Audio department at Lowes.com
New PIONEER TS-W3003D4 12" 2000W MAX CHAMPION PRO DUAL 4 OHMS SUBWOOFER CAR SUB 884938234610 | eBay
Pioneer TSW312D4 Champion Series 12" 1500 Watt Dual 4 Ohm Voice Coil DVC Car Subwoofer
Amazon.com: Pioneer TS-A300D4 12 Inch 1500 Watts Max Power Dual 4-Ohm Voice Coil A Series Car Audio Stereo Subwoofer Loudspeakers / Free Alphasonik Earbuds : Electronics
Amazon.com: PIONEER TS-D12D4 D Series 12" 2000 W Max Power, Dual 4 Ohm Voice Coil, Aramid Fiber IMPP Cone, Rubber Surround - Component Subwoofer : Electronics
Pioneer Electronics on Twitter: "The Champion Series Subwoofers feature an enclosed basket structure that is designed to support the steel basket by reducing the spread of vibration that causes bass loss frequency. #
Amazon.com: Kenwood KFC-W3041 12" 4 Ohm 2000W Car Subwoofer (Single) with Gravity Magnet Phone Holder Bundle : Electronics