Sansui 9900ZDB (1980-1982)
A high-end stereo receiver with DC amplifier design and digital quartz tuning from Sansui’s Z-Series
Overview
The Sansui 9900ZDB is a stereo receiver produced from 1980 to 1982, representing the flagship of Sansui's Z-Series line. It showcases the peak of the company's analog receiver engineering before the shift toward digital technology, combining robust power output with advanced tuning and monitoring features for its era.
Specifications
| Year of Production | 1980-1982 |
| Power Specifications | 110W per channel (8Ω, 20Hz-20kHz, 0.03% THD), 130W per channel (8Ω, 1kHz, 0.03% THD) |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | DC amplifier design, triple power supply system, quartz PLL synthesized tuning, 4-gang tuning capacitor, 8 memory presets, Dolby FM, tone defeat switch, loudness control, dual power meters |
Design
Features a DC amplifier design supported by a triple power supply system, contributing to stable performance. Tuning is handled via quartz PLL synthesis with a 4-gang capacitor and 8 memory presets. The front panel includes a tone defeat switch, loudness control, and dual power meters for real-time output monitoring.
Context
Positioned as the flagship model of Sansui's Z-Series, the 9900ZDB represented the pinnacle of the company's receiver technology in the early 1980s, emphasizing high fidelity and advanced functionality before the digital transition.
Sound Signature
Delivers clean, detailed, and powerful sound with excellent dynamics, tight bass control, and smooth high frequencies—hallmarks of Sansui's DC amplifier design.
Market
Typically valued between $800 and $1,500 depending on condition and cosmetics, with a collectibility rating of 8 out of 10. Common issues include aging capacitors in the power supply, failing display bulbs, dirty switches and potentiometers, and occasional malfunctions in the digital tuning circuitry.
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