Sansui AU-555A:
►Power output: 25 watts per channel into 8Ω (stereo)
►Frequency response: 20Hz to 30kHz
►Total harmonic distortion: 0.5%
►Damping factor: 50
►Input sensitivity: 2mV (MM), 180mV (DIN), 180mV (line)
►Signal to noise ratio: 70dB (MM), 80dB (line)
►Channel separation: 45dB (MM), 50dB (line)
►Output: 180mV (line), 30mV (DIN)
►Speaker load impedance: 4Ω to 16Ω
►Semiconductors: 23 x transistors, 2 x diodes
►Dimensions: 395 x 127 x 278mm
►Weight: 8kg