Sony TA 1630 (1978)
Specifications
| Feature | Specification |
| Year of Production | 1978-1980 |
| Power Specifications | 80W per channel (8Ω, 20Hz-20kHz, 0.1% THD), stereo |
| Impedance | 4-16Ω |
| Sensitivity | 150mV (line), 2.5mV (phono MM) |
| Key Features | DC amplifier design, dual power supplies, STK power packs, phono MM/MC switchable input, loudness control, tape monitor, pre-out/main-in jacks |
Historical Significance
Part of Sony's ES (Elevated Standard) series precursor, represented Sony's high-end approach before the official ES branding, known for robust build quality and advanced DC amplification technology
Sound Signature
Clean, detailed, and neutral with tight bass control, minimal coloration, and excellent transient response characteristic of DC amplification
Maintenance and Restoration Tips
Aging STK power packs requiring replacement, deteriorated electrolytic capacitors, dirty selector switches and potentiometers, occasional thermal protection circuit issues
Collectibility and Market Value
- Market Value: $300-$600 depending on condition and originality
- Collectibility Rating: 7/10
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Service Manuals & Schematics
- Service Manual (1975) — archive.org
Related Models
- Sony STR 7025 (1975)
- Sony STR 7035 (1973)
- Sony STR 6550 (1970)
- Sony STR 202 (1972)
- Sony STR 6000 (1973)
- Akai AM-2850 (1975)
- Akai AP-206 (1975)
- Nakamichi BX-1 (1985)
- Acoustic Research research-ar-17 (1978)
- Acoustic Research AR-19 (1994)