1972 – 1974 Sansui AU-505 Solid State Vintage Amplifier Tested May 4, 2022 by mercury 1972 – 1974 Sansui AU-505 Solid State Vintage Amplifier Tested Working. Specifications Power output: 12watts per channel (x4 channels) into 8Ω (stereo) Frequency response:20Hz to 60kHz Total harmonic …
