Sony STR 6450 (1973)
Specifications
| Feature | Specification |
| Year of Production | 1973-1975 |
| Power Specifications | 40W per channel (8Ω, 20Hz-20kHz, 0.5% THD) |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | DC amplifier design, dual power transformers, FET front end, discrete power amp section, dual tuning meters, 4-gang tuning capacitor, loudness control, tape monitor, pre-out/main-in jacks |
Historical Significance
Part of Sony's high-end STR-6xxx series representing their engineering peak in the 1970s, known for innovative DC amplifier design that eliminated coupling capacitors in the signal path for improved transient response
Sound Signature
Clean, detailed, and neutral with excellent transient response, tight bass control, and wide frequency response due to DC coupling
Maintenance and Restoration Tips
Aging electrolytic capacitors, dirty controls and switches, bulb replacement for meters and dial, potential issues with DC offset due to direct-coupled design
Collectibility and Market Value
- Market Value: $300-$600 depending on condition and cosmetic appearance
- Collectibility Rating: 7/10
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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)