Sansui QS-500 QS Decoder/Amplifier - $300 (Milwaukie)

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condition: excellent

make / manufacturer: Sansui

model name / number: QS-500

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Very clean Sansui quadraphonic decoder/amplifier. It decodes QS or SQ format quad and powers a set of rear speakers. It synthesizes quad from stereo sources as well. Meters allow adjustment of levels for all four speakers. Volume control on this unit controls volume for front and back channels. Can be connected to the Dolby/Quad or Tape connection on a stereo receiver. Sounds fantastic and looks the part, the perfect partner for you vintage amp, especially an 881, 8080 or 9090.

Unit has had the controls cleaned and a partial recap.

Photo is of decoder/amp for sale.

post id: 7966649163

posted: 2026-09-14 18:47

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Sansui QS-500 QS Decoder/Amplifier - electronics - by owner - sale -...

Very clean Sansui quadraphonic decoder/amplifier. It decodes QS or SQ format quad and powers a set of rear speakers. It synthesizes quad from stereo sources as well. Meters allow adjustment of...