Rockford Fosgate P3SD4-10 Punch P3S 10-Inch 4-Ohm DVC Shallow Subwoofer Fiber cone reinforced with Kevlar with poly-ether-ester Surround Shallow-design aluminum basket power range: 100-300 watts RMS (150 watts per voice coil) Peak power handling: 600 watts frequency response: 45-250 Hz