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AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$1,500
Around — community and catalog average, updates slowly
About the BA-2000
The BA-2000 is a vintage stereo power amplifier designed to complement Sansui’s CA-2000 preamplifier. Its circuit uses a toroidal power transformer, a dual-transistor differential input stage with constant-current circuitry, and a parallel push-pull output stage. It has two front-panel power meters and protection circuitry for the output stage and speakers. Published specifications rate it at 110 watts per channel into 8 ohms.
Specifications
Type: Stereo power amplifier
Rated output: 110 W + 110 W into 8 Ω (20 Hz–20 kHz, THD 0.03%); 110 W + 110 W into 4 Ω (20 Hz–20 kHz, THD 0.05%)
Frequency response: 5 Hz–100 kHz (+0/−1 dB, at 1 W)
Output bandwidth: 5 Hz–50 kHz (8 Ω, THD 0.05%)
Total harmonic distortion: 0.03% or less at 1 W into 8 Ω; 0.03% or less at rated output into 8 Ω
Input sensitivity/impedance: 1 V / 50 kΩ
Signal-to-noise ratio: 115 dB or more (IHF, A-weighted)
Channel separation: 75 dB or more (1 kHz)
Power consumption: 245 W rated; 910 W maximum
Dimensions (W × H × D): 460 × 176 × 415 mm
Weight: 18.3 kg