Specifications: 12" component subwoofer switchable 2- or 4-ohm impedance polypropylene cone nitrile rubber surround power handling: 275 watts RMS (1100 watts peak) frequency response: 25-175 Hz sensitivity (2.83V at 1 meter): 93 dB mounting depth: 5-13/16" mounting height: 11/16" sealed box volume: 0.75 cubic feet ported box volume: 2.5 cubic feet grille not included warranty: 1 year