Subwoofer JBL 12 inch double coil Stage 122D.

Product highlights: 12 #34; dual 4-ohm voice coil component subwoofer polypropylene cone with rubber surround and steel basket grille not included power handling: 250 watts RMS (1000 watts peak) frequency response: 34-200 Hz sensitivity (2.83V at 1 meter): 91 dB top-mount depth: 5.94 #34; mounting height: 0.65 #34; sealed box volume: 1.4 cubic feet ported box volume: 1.6 cubic feet