Bass boost level Variable / 0 to 12 dB, Bass boost frequency Variable / 25 Hz to 250 HzSubwoofer phase Switchable / 0 or 180 degreesMaximum input voltage 4.5 volts, Max output voltage 8 voltsFrequency response 10 Hz to 20 kHzSignal to noise ration - 110 dB, Channel separation 80 dB, THD 0.010 %