BHK Signature 250 Stereo Power Amplifier
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The BHK Signature 250 stereo power amplifier bears no witness to compromise. No construction details were overlooked, no performance weakness tolerated. This stereo power amplifier is the industry reference standard for performance—an investment grade musical instrument that brings music to life. The BHK Signature 250 stereo is built upon two proven topologies: a zero-loss vacuum tube input stage coupled to a high bias differentially balanced MOSFET output. If you are uncomfortable with compromise and seek the finest performance, reliability, and build quality in a single-chassis format, the BHK Signature 250 is a perfect fit.
Features:
- Zero-loss vacuum tube input stage
- Differentially coupled balanced MOSFET output stage
- All through hole construction (no surface mount parts)
- RCA Single ended input
- XLR balanced input
- 250 watts per channel 8Ω Signature
- 500 watts per channel 4Ω Signature
- 2Ω stable Signature 250 stereo
- Less than 0.1% thd 20Hz to 20kHz at rated power
- Damping factor 100 for excellent loudspeaker control
- Front panel standby button for vacuum tube input
- -3dB greater than 200kHz
- Dual, custom, solid copper, gold plated output binding posts
- Fully balanced from input to output
- 83 pounds
- Input 12 volt trigger
- Easy access for tubes
Specifications:
- Unit Weight：83 lbs [37.6 kg]
- Unit Dimensions：17.1” x 8.7” x 14” Chassis only. 15" deep including connectors.
- Audio Inputs：RCA (Unbalanced)，XLR (Balanced)
- Gain：30.5dB +/-0.5dB
- Sensitivity for rated output power of 250 watts into 8Ω：1.3V
- Noise：100-20KHz <-85dBV
- Input impedance：Unbalanced 100KΩ，Balanced 200KΩ
- Output Impedance：50Hz, 2.8VRMS <0.1Ω
- Frequency Response @2.8VRMS：10Hz – 20KHz +/- 0.1dB，10Hz – 200KHz +0.1/-3.0dB
- THD & IM：20-20KHz, 1W/8Ω：<0.1%
- Output Power：8Ω 250W minimum，4Ω 500W minimum，2Ω Stable for musical transients
- Damping factor：>150