.Rated Power Output (4Ω) .50Hz,1%THD 280W .Rated Powder Output (2Ω) .50Hz,1%THD 450W .Rated Powder Output (1Ω) .50Hz, 1%THD 650 W .@10W Output Power/T.H.D 10W(6.33V)4Ω T.H.D% 0.05 .Frequency Response (±1dB) 10Hz-300Hz .Low Pass Filter(12dB/oct.) 30Hz-300Hz .Bass boost(@45Hz ) 0-18dB .Signal to Noise Ratio 111dB .Sensitivity(Max)(rated output) 0.2V .Sensitivity(Min)(rated output) 6V .Input Impedance 10KΩ .Operating Voltage(9-16Vallowable) 14.4V .Current Consumption(45Hz,1%THD) 60A .Dimensions(LxWxH)mm 250x180x55