Alpine S2-W10D4 S-Series 10" subwoofer with dual 4-ohm voice coils

Product highlights: 10" subwoofer with dual 4-ohm voice coils carbon fiber/polypropylene cone with HAMR rubber surround frequency response: 25-215 Hz power handling: 600 watts RMS (300 watts per coil) peak power handling: 1,800 watts sensitivity: 84.9 dB top-mount depth: 4.655" mounting height: 0.92" sealed box volume: 0.45-0.9 cubic feet ported box volume: 0.8-1.35 cubic feet grille not included warranty: 1 year MFR # S2-W10D4