Sansui QS-1 Quadrophonic Synthesizer Decoder Solid State 4-Channel Wood Case

SANSUI QS-1 Quadraphonic Synthesizer

Sansui QS-1 Quad Processor

Sansui QS-1 4-Channel Quadraphonic Synthesizer Vintage Japan

Sansui AU717 Stereo Integrated Amplifier

Vintage TrueTone Record Player Tube Amp Chassis With Speaker And Schematic

Sansui QS-1 Quadrophonic Synthesizer Decoder Working

Sansui QS-1 Quadraphonic Synthesizer 2/4 Channel Processor Power & Audio junk