Sansui QS-500

Data[edit]

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[edit]

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.



Pictures[edit]

  • Extract from brochure: Sansui QS-500

Sansui QS-500-Prospekt-1.jpg


Reports[edit]

  • Report from "Hifimuseum": [[1]]


Links[edit]