Sony STR-DH700. Audio output channels: 7.1, Total Harmonic Distortion (THD): 1 %, Impedance: 8 Ом. Supported radio bands: AM, FM. Power consumption (typical): 240 W, Power consumption (standby): 0.3 W. Weight: 8 kg. Power requirements: 120 V, 60 Hz, Dimensions (WxDxH): 430 x 157.5 x 322 mm