Rotel SURROUND SOUND RECEIVER RSX-1057 Continuous Amplifier Power (five channels driven) 75 watts/ch (20-20k Hz, <0.05% THD, 8 ohms) Continuous Amplifier Power (two channels driven) 100 watts/ch (1kHz, <1.0% THD, 8 ohms, DIN) Power Requirements (AC) 120 volts, 60Hz (USA version) 230 volts, 50Hz (CE version) Rotel SURROUND SOUND RECEIVER RSX-1056 Continuous Amplifier Power (five channels driven) 75 watts/ch (20-20k Hz, <0.05% THD, 8 ohms) Continuous Amplifier Power (two channels driven) 100 watts/ch (1kHz, <1.0% THD, 8 ohms, DIN) Power Requirements (AC) 115 volts, 60Hz (USA version) 230 volts, 50Hz (CE version) RSX1056 power schematic RSX1056 Power amplifier schematic and PWB RSX1057 Power schematic RSX1057 Power amplifer schematic and PWB