... 22 Hz - 20 kHz)+0 dB, 1 dBSignal to Noise Ratio below rated power (20 Hz to20 kHz, inputs terminated ... THD) at 1 full bandwidth power, from 20 Hz to 1 kHz< 0.5%Intermodulation Distortion (IMD) 60 ... 7 kHz at 4:1, from full rated output to 30 dB< 0.3%Damping Factor (8 ohm ... -240 VAC 50 HzVentilationFlow-through ventilation from front to backCoolingInternal heat sinks with forced-air coolingAir Volume ...