ONKYO A-9030. Audio output channels: 2.0, Amplifier class: A/B, Total Harmonic Distortion (THD): 0.08 %. Speakers connectivity type: Clamp terminals. AC input voltage: 220-230 V, Input frequency: 50/60 Hz, Power consumption (typical): 135 W. Width: 435 mm, Depth: 330.3 mm, Height: 139 mm. Package dimensions (WxDxH): 572 x 419 x 264 mm, Package weight: 9400 g