SUBWOOFER: 12" DUAL VOICE COILCONE: NON-PRESSED CONE FOAM EDGEVOICE COIL(BSV): 4-LAYERS, 4"MAGNET: 100 OZ x 3RMS POWER: 3500WMAX POWER: 10500WFREQ.RESP.: 35HZ-800HZSPL: 90dB/W/MIMPEDANCE: 1 OHM+1 OHM