Sansui QS-500

Data

General

• Manufacturer: Sansui
• Model: QS-500
• Type: Quadrophonic decoder amplifier
• Years of manufacture: 1972 - 1974
• Made in: Japan
• Color: front aluminum brushed silver / black, wooden cabinet
• Remote control: no
• Power consumption:
• Dimensions: 382 x 162 x 337 mm (WxHxD).
• Weight: 10 kg
• Original price approx.: 1'680 DM

Connections

• Number of inputs:
  • 2-channel: 100 mV / 60 kOhm
  • 4-channel aux: 100 mV / 120 kOhm
  • 2-/4-channel tape monitor: 200 mV / 120 kOhm
• Number of outputs:
  • 2-/4-channel Tape Out: 100 mV RCA

2-/4-channel Tape Out: 20 mV Din

• • Pre Out: 1V, max. 3V
  • 2 pairs of speakers (rear)

Technical Data

• Continuous power (rear speakers)
  • 8 Ohm: 2x 33 W (20 - 20'000 Hz), 2x 36 W (1 kHz, 1 %)
  • 4 Ohm: 2x 47 W
• Dynamic power
  • 8 Ohm:
  • 4 Ohm: 2x 60 W
• Total harmonic distortion: <0.5%
• Attenuation factor: 40
• Frequency response:
  • 20 - 40'000 Hz 2-channel
• Tone control:
  • Bass: -11/+12 dB (at 100 Hz).
  • Treble: -10/+9.5 dB (at 10 kHz

Special Features

• 4 VU meters
• Switch for 4-channel RM, SQ, Discrete / Stereo / Mono
• CD-4 connectable
• Synthesizer decoder function selector for:
  • Concert Hall 1 and 2: stereo signals pseudo-square processed.

Surround: pseudo quadraphonic stereo signals, except that the listener is placed in the center of the musical action.

• • • The channels can be cyclically swapped by 90 and 180 degrees clockwise (Right Quarter Turn and Half Turn)

In the "Decoder" position, matrix-encoded records, preferably QS records, are listened to.

Remarks

The Sansui QS-500 contains two power amplifiers, a decoder for matrix-encoded records and a synthesizer for quadrophonic processing of normal stereo signals.

• If an existing stereo receiver amplifier is supplemented by the QS-500, this combination offers the same possibilities as a full-fledged quadro amplifier with regard to all types of quadrophony.

• Other models in the same series:
• Sansui QS-1
• Sansui QS-100
• Sansui QS-500

Pictures

• Extract from brochure: Sansui QS-500

Reports

• Report from "Hifimuseum": [[1]]