Kenwood KFC-XW1241 12" Subwoofer, X-Motif Cap, 600W Max Power - Used Very Good - Creative Audio
Kenwood P-XW1221D Dual 12" Excelon Subwoofers in a Vented Enclosure and includes a XR601-1 Reference Series 1200 W Max Power Mono Amplifier - Creative Audio
Best Buy: Kenwood 12" 4-Ohm Single-Voice-Coil Subwoofer KFC-W3011
Kenwood XR-W1204 12" Oversized Subwoofer, Single 4-ohm voice coil, 1200W Max Power - Creative Audio