12" DUAL VOICE COIL SUBWOOFERP.P. INJECTION CONE RUBBER EDGEVOICE COIL(ASV): 2"MAGNET: 36 x 2 OZRMS. POWER: 500WMAX. POWER: 1000 WFREQ.RESP.: 30HZ-2800HZSPL: 88dB/W/MIMPEDANCE: 4 OHM+4 OHM