ONKYO A-9155. Audio output channels: 2.0, Total Harmonic Distortion (THD): 0.08 %, Signal-to-Noise Ratio (SNR): 100 dB. Weight: 6800 g. Dimensions (WxDxH): 435 x 344 x 121 mm, Output power: 2 x 55 W, Output power: 65 W