Pioneer TS-W3002D4 12 Inch Champion Series PRO Subwoofer with 3500 Watts Max. | eBay
Amazon.com: PIONEER CAR TSA301D4 12-inch 1600 W Max Power, Dual 4 Ohm Voice Coil for for Powerful Bass Champion Series - Component Subwoofer : Electronics
Pioneer TS-A301S4 Champion Series12 Inch 1600-Watt Max Single-Voice-Coil 4-Ohm Component Subwoofer - Black - Walmart.com
Pioneer Champion Series TS-A301D4 1600 Watts 12 inch Dual 4 Ohm Subwoofer - Walmart.com
Pioneer TS-W308D4 Champion Series 12" subwoofer with dual 4-ohm voice coils at Crutchfield