Sansui QR-4500

Data

General

  • Manufacturer: Sansui
  • Model: QR-4500
  • Type: Quadraphonic Receiver
  • Years of manufacture: 1971 - 1973
  • Made in: Japan
  • Color: brushed aluminum front, wooden cabinet
  • Remote control:
  • Power consumption: 310 W max.
  • Dimensions: 526 x 171 x 317 mm (WxHxD)
  • Weight: 18.6 kg
  • Original price approx.: 2'948 DM (1972)


Connections

  • Number of inputs:
    • Phono: 2.5 mV, 50 kOhm, 330 mV max.
    • Aux 2-channel: 150 mV, 50 kOhm
    • Aux 4-channel:
      • Low: 150 mV, 50 kOhm
      • High: 450 mV, 50 kOhm
    • Tape Play 1, 2, 2-channel: 150 mV, 50 kOhm
    • Tape Play DIN, 2-channel: 150 mV, 50 kOhm
    • Tape Play 1, 2, 4-channel: 150 mV, 50 kOhm
    • Tape Play DIN, 4-channel: 150 mV, 50 kOhm
    • Discrete 4-channel: 150 mV, 50 kOhm
    • Main In:
    • Antenna (FM: 75, 300 Ohm, AM)
    • Microphone (6.3mm jack).
  • Number of outputs:
    • Tape Rec 1, 2: 150 mV

Tape Rec DIN: 30 mV

    • Dolby NR Adapter:
    • Pre Out: 1 V
    • Headphones (6,3mm jack): 1x front, 1x rear
    • 3 speaker pairs front
    • 2 speaker pairs in the back


Technical Data

Amplifier

  • Continuous power (at distortion):
    • 8 Ohm: 4x 23 W (RMS, 20 Hz - 20 kHz, 0.5 %), 4x 27 W (1 kHz).
    • 4 Ohm: 4x 38 W
  • Dynamic power:
    • 8 Ohm: 160 W
    • 4 Ohm: 240 W
  • Total harmonic distortion: < 0.3 %
  • Attenuation factor: 40 at 8 Ohm
  • Frequency response:
    • Phono: 30 Hz - 15 kHz, ± 1 dB
    • High level: 20 Hz - 30 kHz, ± 1 dB
  • Signal-to-noise ratio:
    • Phono: 60 dB

High level: 70 dB

  • Tone control:
    • Bass: ± 15 dB at 50 Hz

Treble: ± 15 dB at 20 kHz

  • Loudness: + 8 dB at 50 Hz, + 3 dB at 10 kHz
  • Treble filter: - 10 dB at 10 kHz, 6 dB / octave
  • Subsonic: - 10 dB at 50 Hz, 6 dB / octave
  • Mute:


Tuner

  • Reception: FM, MW
  • Frequencies:
    • FM: 88 - 108 MHz
    • MW: 530 - 1,605 kHz
  • Input sensitivity:
    • FM: 2.0µV
    • MW: 50µV
  • Frequency response: 30 - 15,000 Hz (+0.3 dB, -1 dB)
  • Distortion factor:
    • FM, 1 kHz: < 0.5% (mono), < 0.8% (stereo).
  • Signal-to-noise ratio:
    • FM: 65 dB (mono), 60 dB (stereo)

MW: 55 dB

  • Channel separation: 35 dB (1kHz)
  • Selectivity:
    • FM: 50 dB
    • MW: 30 dB
  • Co-wave selection: 1.5 dB
  • Spurious wave selection:
    • FM: 90 dB
    • MW: 35 dB
  • Image frequency attenuation:
    • FM: 80 dB
    • MW: 100 dB
  • IF attenuation:
    • FM: 80 dB
    • MW: 100 dB
  • AM suppression: 55 dB


Special Features

  • Switch for 4-channel RM, SQ, Discrete / Stereo / Mono
  • CD-4 connectable
  • Bass and treble control separately for front / rear
  • Tape 2-channel front connections 6.3mm jack: Rec, Play


Remarks


Pictures

  • Extract from brochure: Sansui QR-4500

Sansui QR-4500-Prospekt-1.jpg


Reports

Links