Kenwood P-XW1221SHP Single 12" High Power Subwoofer in a Vented Enclosure and includes a X502-1 1000W Max Power eXcelon Series Class D Mono Amplifier - Creative Audio
KENWOOD KFC-W120SVC Road Series 12" Passive Car Subwoofer 1000W, 4 OHM Impedance | eBay