Digital pa amplifier power amplifier class d total connected load 420 w dimensions 188 x 255 x 9 cm weight 16 kg outputs binding post inputs rca frequency response 20 200 hz power output at 4 ohms 420 distortion factor 0 1 power output at 8 ohms 150 signal noise ratio 70 db input impedance 22 kohm voltage gain 3 input sensitivity 7 v power consumption 440 000 ma power consumption standby 05 watt