- Power 1500 WATT - Nominal Diameter 460 MM - Rated Impedance 8 OHM - Sensitivity (1w/1m) 97dB - Frequency Range 30-2000 Hz - Voice Coil Diameter 125 MM - Magnet Diameter 280 MM - Resonance Frequency Fs 30 Hz - Total Factor Qts 0.28 - Effective Moving Mass Mms 250 GR - Equivalent Cas air load Vas 120 Liters