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Sansui 9090DB Stereo Receiver - Fully Serviced & restored. - $2,400
Brea Blvd near Rolling Hills Dr
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Flowing circuit board are restored,
(1) F-2653 Equalizer Circuit Board
(2) F-2544 Tone Control Circuit Board
(3) F-2624 Driver Circuit Board
(4) F-2619 Power Supply circuit board of RF Section
(5) F-2617 Mic Amp Circuit Board
(6) F-2657 Power Relay Circuit Board
(7) F-2656 Power Supply Circuit Board
(8) F-2654 Push Switch Circuit Board
(9) F-2623 Filter Circuit Board
(10) F-2694 Dolby Volume Circuit Board and
(11) F-2655 Dolby NR Circuit Board.
All the capacitors are high-end and all the signal transistors are modern low noise, unit playing awesome and crystal clear sounding receiver.
Key Specifications & Features:
Power Output: 125 watts per channel into 8Ω
(min RMS, both channels driven, 20Hz-20kHz).
Total Harmonic Distortion (THD): Less than 0.1%.
Design: Known for its heavy, robust construction (approx. 50-52 lbs) and stunning aesthetic with blue and white meters.
Key Controls: Separate Bass, Midrange, and Treble controls; Dolby Noise Reduction; FM/AM Tuner.
Connections: Two phono inputs, two tape loops, aux input, and terminals for three pairs of speakers.
Distinguishing Features: The "DB" denotes the Dolby board, distinguishing it from the non-DB 9090, which uses a different (quasi-complementary) output topology.
Common Issues & Value
Condition: Due to their age, these units often require "recapping" (replacing capacitors) and cleaning of the potentiometers (pots) to fix scratchy controls.
Dolby Board: The Dolby board can sometimes be a failure point; however, later models are more reliable.
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