This Kenwood P-W1220 "party pack" includes the KAC-5206 2-channel amplifier and two KFC-W112S 12" subs exactly the components you need to produce bold, punchy bass in your car. Just add an enclosure and wiring, and you'll enjoy strong low-frequency performance. Each KFC-W112S 12" subwoofer sports an injection-molded polypropylene cone with a thick urethane surround, a combination that promotes deep excursion and accurate bass response. Each sub handles up to 200 watts RMS, and can be mounted in a sealed or ported box. Kenwood's tough KAC-5206 2-channel amplifier powers the two subs comfortably with 150 watts in single-channel mode. A low-pass filter directs the correct frequencies to the subs, giving you plenty of bass without distortion. You'll finally hear and feel the low-frequency notes your car's full-range speakers can't play.