Technics SA-5770

Data

General

  • Manufacturer: Technics
  • Model: SA-5770 / SA-5770K
  • Years of manufacture: 1977 - 1978
  • Made in: Osaka, Japan
  • Color: SA-5770 silver, SA-5770K black, both with wooden cabinet
  • Remote control: no
  • Power consumption: 430 W max.
  • Dimensions: 590 x 180 x 493 mm (WxHxD)
  • Weight: 26.5 kg
  • Original price approx.: 800 US-$ (USA, 1977), corresponds to approx. 3'200 DM


Connections

  • Number of inputs:
    • Phono 1: 2.5 mV / switchable 25 kOhm, 50 kOhm, 100 kOhm, max. 20 mV.
    • Phono 2: 2.5 mV / 50 kOhm, max. 20 mV
    • Aux 1, 2: 200 mV / 50 kOhm
    • Tape Play 1, 2: 150 mV / 47 kOhm
    • Tape Play 2 DIN: 180 mV / 47 kOhm
    • Main In: 1.5 V / 47 kOhm
    • Antenna FM/MW: 75/300 Ohm
  • Number of outputs:
    • Tape Rec 1, 2: 200 mV

Tape Rec 2 DIN: 80 mV

    • Pre Out: 1,5 V / 100 Ohm, max. 3 V / 100 Ohm
    • Headphones (6.3mm jack)
    • 2 speaker pairs 4 - 16 Ohm


Technical Data

Amplifier

  • continuous power
    • 8 Ohm: 2x 165 W (20 - 20'000 Hz, 0.08 %), 2x 175 W (1 kHz, 0.08 %)
    • 4 Ohm: 2x 205 W (20 - 20'000 Hz, 0,08 %), 2x 230 W (1 kHz, 0,08 %)
  • Dynamic power
    • 8 Ohm:
    • 4 Ohm:
  • Total harmonic distortion: 0.08 %
  • Attenuation factor: 60 at 8 Ohm
  • Frequency response:
    • Phono: ± 0.2dB (RIAA)
    • High level: 20 - 20'000 Hz (+ 0 dB / - 0,3 dB)
  • External voltage spacing: (at nominal power)
    • Phono: 78 dB
    • High level: 95 dB
  • Tone control:
    • Bass: 50 Hz, ± 12 dB

Crossover frequencies: 250 Hz, 500 Hz

    • Mids: 1 kHz, ± 8 dB
      • Crossover frequencies: adjustable 250 Hz - 5 kHz
    • Treble: 10 kHz, ± 10 dB
      • Crossover frequencies: 2.5 kHz, 5 kHz
  • Loudness: yes, 50 Hz + 10 dB
  • High Filter: yes, 7 kHz, - 12 dB / octave
  • Low Filter (Subsonic): yes, 30 Hz, - 12 dB / octave
  • Muting: - 20 dB


Tuner

  • Reception: UKW/MW
  • Frequencies:
    • FM: 88 - 108 MHz
    • MW: 530 - 1605 KHz
  • Input sensitivity:
    • FM: 1.8 µV
    • MW: 30 µV
  • Frequency response: 20 - 18,000 Hz (+ 0.2 dB, - 0.8 dB)
  • Distortion factor:
    • FM, 1 kHz: < 0.1% (mono), < 0.15% (stereo).
  • Signal-to-noise ratio:
    • FM: 85 dB (mono), 75 dB (stereo)

MW: 55 dB

  • Channel separation: 45 dB (1kHz)
  • selectivity: 80 dB
  • Co-wave selection: 1.0 dB
  • Spurious wave selection:
    • FM: 80 dB

MW: 40 dB

  • Image frequency attenuation:
    • FM: 85 dB
    • MW: 70 dB
  • IF attenuation:
    • FM: 100 dB
    • MW: 70 dB
  • AM suppression: 60 dB


Special Features

  • Stereo / Mono switch
  • Delay Time switch
  • Program source display with LED
  • Pre- / power stage separable


Comments




Pictures

  • Image: Technics SA-5770

Technics SA-5770-1.jpg


  • Excerpt from brochure: Technics SA-5770 advertisement.

Technics SA-5770-Prospekt-1.jpg


  • Excerpt from brochure: Technics SA-5770 advertising.

Technics SA-5770-Werbung-1.jpg


Reviews

Links

  • External link to website "The Vintage Knob": [1]