Specifications: 10" component subwoofer switchable 2- or 4-ohm impedance polypropylene cone nitrile rubber surround power handling: 250 watts RMS (1000 watts peak) frequency response: 30-175 Hz sensitivity (2.83V at 1 meter): 92 dB mounting depth: 5-11/16" mounting height: 11/16" sealed box volume: 0.5 cubic feet ported box volume: 1.5 cubic feet grille not included warranty: 1 year