Kenwood KSC-PSW8 | 8" Under Seat Powered Subwoofer Enclosure
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 - Walmart.com
Kenwood eXcelon KFC-XW1200F 12" 1400-Watt Shallow Mount Car Subwoofer - Walmart.com
Amazon.com: Kenwood KFC-W3041 Car Subwoofer - 2000 Watts Maximum Power, 12 Inch, Single 4 Ohm Voice Coil, Sold Individually : Electronics
Kenwood KFC-W3011 12" 4-ohm subwoofer at Crutchfield
Kenwood KFC-W3010 12" 12-inch 4-ohm Car Audio Subwoofer 1000W MAX Electronics - Newegg.com