P-Audio PA10MK18 1200-Watts 10-Channel Subwoofer 1200 watts peak power handling ferrite magnetics precision aluminum rectangular wire geometry die cast aluminum chassis EV Nominal diameter; 254mm/10 in power rating; 300 n(aes) nominal impedance; 8 ohms sensitivity; 97db; EV B&C Frequency range. 50-3800hz chassis type. Cast aluminum magnet type. Ferrite magnet weight. 2.3kg/81.4 oz. EVM10DLX 10MD26 Voice coil diameter. 63.7mm/2.5 in coil material. Al-r former material. Kapton cone material. Paper surround material. Cloth. EVM10DLX Suspension; Single x-max; 2.2mm/0.08 in gap depth; 8mm/0.31 in voice coil winding width; 12.4mm/0.49 in