10"Subwoofer Box Durable Black Carpet 2"(BASV)Voice Coil 40 oz Magnet(woofer) 4 Ohm Impedance 100 Watts RMS Power 12"Subwoofer Box Durable Black Carpet 2"(BASV)Voice Coil 50 oz Magnet(woofer) 4 Ohm Impedance 120 Watts RMS Power