Sansui Amplfier B-2101 - $750 (Tucson)

Irvington/midvale

condition: like new

make / manufacturer: Sansui

model name / number: B-2101

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The Sansui B-2101 is a powerful, high-fidelity stereo power amplifier from the 1980s, delivering 200 watts per channel into 8 ohms (RMS) with exceptionally low distortion (<0.003%) and a wide frequency response (DC to 220kHz), featuring MOSFETs, a robust toroidal power supply, and dual-mono design for clean, dynamic sound for demanding speakers.
Key Specifications:
* Power Output: 200W x 2 (8 Ohms, 20Hz-20kHz, <0.003% THD)
* Dynamic Power: 320W (8 Ohms), 510W (4 Ohms)
* Total Harmonic Distortion (THD): <0.003% at rated output
* Intermodulation Distortion: <0.003% (SMPTE method)
* Frequency Response: DC to 220kHz (+0dB, -3.0dB)
* Signal-to-Noise Ratio (S/N): 115dB (short-circuited, A-weighted)
* Damping Factor: High (specific value not detailed in snippets)
* Input Sensitivity: 1V (for 200W output)
* Power Consumption: 650W (rated) / 950W (max)
* Features: MOSFET amplification, large toroidal transformer, 10,000uF filter capacitors, X-balanced design, input sensitivity switches, illuminated meters.
* Dimensions (WHD): Approx. 430 x 160 x 412 mm (17" x 6.3" x 16.2")
* Weight: Approx. 18 kg (39.7 lbs)
Key Characteristics:
* MOSFET Technology: Known for smooth, detailed sound.
* Dual-Mono Configuration: Separate power supplies/grounds for each channel for improved separation.
* >>X-Balanced System: Sansui's design to minimize distortion and noise.
* >>High Current: Capable of driving demanding speakers with ample dynamic range.
The B-2101 is a significant piece of vintage audio, offering high-end performance from the 1980s era.

post id: 7911031394

posted: 2026-01-25 18:32

updated: 2026-03-10 22:22

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Sansui Amplfier B-2101 - electronics - by owner - sale - craigslist

The Sansui B-2101 is a powerful, high-fidelity stereo power amplifier from the 1980s, delivering 200 watts per channel into 8 ohms (RMS) with exceptionally low distortion (<0.003%) and a wide...