Alpine R2-W8D4

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8" subwoofer with dual 4-ohm voice coils Kevlar reinforced pulp cone with HAMR Santoprene rubber surround frequency response: 30-200 Hz power handling: 150-350 watts RMS (175 watts per coil) peak power: 1,000 watts sensitivity: 83.7 dB top-mount depth: 4.631" mounting height: 0.875" sealed box volume: 0.2-0.5 cu. ft. ported box volume: 0.3-0.75 cu. ft. Show more