Amazon.com: Cerwin Vega XED12V2 12-inch Subwoofer with 4 ohms, 1000 watts max, and 125 watts RMS Power Handling, Single Voice Coil Car Subwoofer : Electronics
Amazon.com: Cerwin-Vega V124DV2 12" Subwoofer 1300W Max Power Handling 450W RMS 4 ohm, Dual Voice Coil, Car Subwoofer for Enhanced Audio Quality and Santoprene Surround, Single Unit : Electronics