Sansui AU 719 (1978-1980)
Specifications
| Feature | Specification |
| Year of Production | 1978-1980 |
| Power Specifications | 80W per channel (8Ω, 20Hz-20kHz, 0.03% THD) |
| Impedance | 4-16Ω |
| Sensitivity | 150mV (line), 2.5mV (MM phono) |
| Key Features | Dual power supply, DC amplifier design, Sansui's X-Balanced circuit, toroidal transformer, direct coupling, phono equalizer with low-noise FETs, independent preamp/power amp sections |
Historical Significance
Flagship integrated amplifier in Sansui's Alpha series, representing the pinnacle of their 1970s solid-state engineering and competing directly with high-end offerings from Pioneer and Marantz
Sound Signature
Exceptionally clean, detailed, and neutral with tight bass control, wide soundstage, and excellent transient response - considered one of the most transparent solid-state amps of its era
Maintenance and Restoration Tips
Aging electrolytic capacitors, particularly in power supply; relay contacts may need cleaning; occasional issues with protection circuit; original fusible resistors may require replacement
Collectibility and Market Value
- Market Value: $800-$1,500 depending on condition and restoration status
- Collectibility Rating: 8/10
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