Sony TA 1090 (1978)
Specifications
| Feature | Specification |
| Year of Production | 1978-1980 |
| Power Specifications | 120W per channel into 8Ω (stereo) |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | DC amplifier design, dual mono construction, toroidal power transformer, direct-coupled circuitry, dual power meters, pre-out/main-in jacks, high damping factor |
Historical Significance
Flagship integrated amplifier from Sony's ES (Elevated Standard) series, representing Sony's commitment to high-end audio engineering in the late 1970s with advanced DC amplification technology
Sound Signature
Clean, transparent, and powerful with excellent dynamics, tight bass control, and neutral tonal balance, known for its precision and low distortion
Maintenance and Restoration Tips
Aging capacitors, particularly in power supply; potentiometer cleaning; occasional issues with protection circuits; meter bulb replacement
Collectibility and Market Value
- Market Value: $400-$800 depending on condition and cosmetic appearance
- Collectibility Rating: 7/10
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