Pioneer 60 watt, 6-1/2" manufactured using copper wire on aluminum bobbins bonded with high temperature polyamide-imide adhesive, barium ferrite magnets and long throw voice coils. Nylon laminated cone and duster cover. 60 watts (maximum 120 watts) 57-7,000 Hz. 20oz magnet. 57 Hz resonant frequency. 8 ohm impedance. 7.1 ohm DC resistance. 12 gram moving mass. 1-1/4" dia voice coil. SPL: 93 dB 1W/1m. 6.13" mounting center. 6.5" x 5.6" x 3.1" MF052