Kenwood P-XW1221SHP Single 12" High Power Subwoofer in a Vented Enclosure and includes a KAC-D5101 1000W Max Power Class D Mono Amplifier - Creative Audio
Kenwood KSC-SW11 Compact powered subwoofer at Crutchfield
Kenwood KSC-SW11 Compact Powered Enclosed Subwoofer for CAR : Electronics
Kenwood Compact Powered Enclosed Subwoofer for CAR 19048202215 | eBay
Kenwood KSC-SW11 Active Amplified Car Underseat Subwoofer | eBay