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
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