2 channel High-End Amplifier 2 x 290 Watts at 4 Ohms 2 x 530 Watts at 2 Ohms 1 x 1060 Watts at 4 Ohms bridged Frequency response 10Hz – 80kHz THD+N 0.0015 %Signal to noise ratio 120 dB Damping factor 1000 Dimensions: 53 x 237.5 x 473 mm.