A solid state integrated amplifier with 20W+20W output, built-in tape monitor, and microphone input, built-in tape monitor, and microphone input.
Overview
The Sansui AU-2000 is a solid state integrated amplifier made by Sansui Electric Co., Ltd. It puts the preamplifier and power amplifier in one chassis. It has a microphone jack, DIN connectors, tape monitoring, and three-way speaker switching. The design uses technology inherited from Sansui's high-end models, with a large power transformer and protective fusing for the output transistors.
Specifications
| Power Output (both channels) | 20W + 20W (8 Ω, 1 kHz) |
| Music Power | 84W (4 Ω, 1 kHz) |
| Total Harmonic Distortion | 0.3% or less at rated output |
| Intermodulation Distortion | 0.5% or less at rated output |
| Power Band Width (IHF) | 25 Hz to 30 kHz |
| Damping Factor | 50 (8 Ω) |
| Input Sensitivity / Impedance | Phono: 3mV / 50kΩ; Tape: 200mV / 50kΩ |
| Recording Output Voltage | Tape Rec (PIN): 200mV; (DIN): 30mV |
| Hum and Noise | Phono: 70 dB or more (IHF) |
| Power Consumption (max) | 70W (150VA) |
| Dimensions | 407 mm (W) × 115 mm (H) × 278 mm (D) |
| Weight | 8.1 kg |
Design
The amplifier section is a quasi-complementary Darlington SEPP/OTL circuit. A large transformer supplies the power, and the output transistors are protected by fuses. The front panel has a microphone jack and a DIN terminal that works with high-impedance microphones. The built-in functions are tuner-priority selectors, low/high filters, loudness compensation, tape monitor, mode switch, and three-way speaker switching.
Market
A unit was listed for sale at $2,499 in April 2026. Owners have reported restoring units by recapping and recalibrating. Service manuals are available through third-party sources.
eBay Listings
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