2) New Kicker 44CWCS104 10" 1000W Car Audio Power Subwoofers + 1600W Amplifier CompC 10 inch 500 watt 4 Ohm voice coil SVC subwoofer 500 watts max per sub, 250 watts RMS per sub High performance bass that keeps pounding Perimeter venting keeps the air free flowing around motor structure Injection molded polypropylene cone