Sony STR-7055 A

Data

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

• Other models in the same series:
• Sony STR-7025
• Sony STR-7035
• Sony STR-7055
• Sony STR-7055 A
• Sony STR-7065

Pictures

• Image: Sony STR-7055 A

Reports

• Report from "Mackers": [[1]]

Links

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