Biamp Vocia VA-2060, 2.0 channels, 60 W, 0.5%, 88 dB, 20 bit, 100 - 240 V Biamp Vocia VA-2060. Audio output channels: 2.0 channels, Peak power per channel: 60 W, Total Harmonic Distortion (THD): 0.5%. AC input voltage: 100 - 240 V, AC input frequency: 50 - 60 Hz. Width: 483 mm, Depth: 361 mm, Height: 82.5 mm