Sony STR-7055 A

Data[edit]

General

  • Manufacturer: Sony
  • Model: STR-7055 A
  • Years of manufacture: 1976 - 1977
  • Made in: Japan
  • Color: Silver
  • Remote control: no
  • Power consumption: 300 W max., idle consumption 40 W
  • Dimensions: 471 x 157 x 375 mm
  • Weight: 15,3 kg
  • Original price approx.: 1'198 DM


Connections

  • Number of inputs:
    • Phono 1, 2: 1.8 mV / 47 kOhm

Tape Play 1, 2: 140 mV / 100 kOhm

    • AUX: 140 mV / 100 kOhm
    • Antenna FM (75 Ohm / 300 Ohm), MW (300 Ohm)
  • Number of outputs:
    • Tape Rec: 250 mV / 10 kOhm

Tape Rec DIN: 30 mV / 80 kOhm

    • Headphones: 6,3mm jack
    • 2 pairs of loudspeakers


Technical Data

Amplifier

  • Continuous power (at distortion)

8 Ohm: 45 W (< 0.2 %) 4 Ohm: 55 W (< 0.2 %)

  • Dynamic power
    • 8 Ohm: 136 W ( < 0.2 %)
    • 4 Ohm: 200 W ( < 0.2 %)
  • Total harmonic distortion: below 0.2 %
  • Attenuation factor: over 50 dB (8 Ohm)
  • Frequency response: 20 Hz- 20 kHz
  • Signal-to-noise ratio:
  • Tone control:
    • Bass: yes, ±10 dB (100 Hz)

Treble: yes, ±10 dB (10 kHz)

  • Loudness: yes, +10 dB (50 Hz), +4 dB (10 kHz)
  • High Filter: yes, 9 kHz
  • Low Filter (Subsonic): yes, 50 Hz
  • Mute:


Tuner

  • Reception:
  • Frequencies:
    • FM: 87.5 MHz - 108 MHz
    • MW: 525 - 1605 kHz
  • Frequency response: 20 Hz - 15 kHz
  • Input sensitivity: 1.6 uV
  • Distortion factor:
  • Signal-to-noise ratio: 70 dB
  • Channel separation: 38 db / 400 Hz
  • Selectivity: 70 dB
  • Co-wave selection: 1.0 dB
  • Spurious wave selection: 90 dB
  • Image frequency attenuation: 70 dB
  • IF attenuation: 100 dB
  • AM suppression: 56 dB


Special Features

  • AUX: 6.3mm jack front
  • Tone control bass / treble for L + R separately
  • Wooden cabinet optional


Comments[edit]


Pictures[edit]

  • Image: Sony STR-7055 A

Sony STR-7055 A-1.jpg


Reports[edit]

  • Report from "Mackers": [[1]]


Links[edit]

  • External link to website "The Vintage Knob": [[2]]