Sony STR 7055 (1972)
Specifications
| Feature | Specification |
| Year of Production | 1972-1974 |
| Power Specifications | 32W per channel (8Ω, RMS), stereo |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | FET front end, dual power supply, DC amplifier design, dual-gate MOSFETs in FM tuner, loudness contour switch, tape monitor, phono inputs |
Historical Significance
Part of Sony's first generation of high-quality receivers, helped establish Sony as a serious hi-fi manufacturer competing with Pioneer and Marantz
Sound Signature
Clean, detailed, neutral with good transient response, excellent FM tuner section, precise imaging
Maintenance and Restoration Tips
Aging electrolytic capacitors, dirty controls and switches, bulb replacement for dial lights, occasional transistor failures in power supply
Collectibility and Market Value
- Market Value: $300-$600 depending on condition and cosmetic appearance
- Collectibility Rating: 7/10
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Service Manuals & Schematics
- Manual — archive.org
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