Nominal diameter: 460 mm (18.0 in) Nominal impedance: 8 Minimum impedance: 6.5 Continuous power handling: 3000 W Sensitivity (1W/1m): 96.0 dB Frequency range: 35 1000 Hz Voice coil diameter: 100 mm (4.0 in) Winding material: Copper Former material: Glass Fibre Winding depth: 31 mm (1.22 in) Magnetic gap depth: 15 mm (0.59 in) Flux density: 1.15 T