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PS Audio - BHK Signature 250 - Power Amplifier

Original price $14,995.00 - Original price $14,995.00
Original price
$14,995.00 - $14,995.00
Current price $14,995.00
1+ in stock
1+ in stock

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Discover the pinnacle of musical perfection with the PS Audio BHK Signature 250 Power Amplifier - a testament to the power of premium handcrafted design. This amplifier is not just a device, it is a transportation vehicle to a world of audio brilliance. Thanks to the genius of Bascom H. King, the BHK Signature 250 marries vacuum tube input with a robust MOSFET output, resulting in a power-packed performance of 250/500 watts per channel. Designed to drive any loudspeaker to absolute sonic perfection, this amplifier is indispensable in your audio reproduction setup. With a zero-loss vacuum tube input stage and a differentially coupled balanced MOSFET output stage, every note and nuance is masterfully highlighted. The BHK Signature 250 is more than just an amplifier - it's an immersive musical experience. Embrace the power and perfection of PS Audio, and hear your music as you’ve never heard it before!

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ℹ Product Information

PS Audio BHK Signature 250 Power Amplifier

Welcome to the world of absolute audio perfection; welcome to the PS Audio BHK Signature 250 Power Amplifier - an amplifier of rare distinction that allows listeners to voyage into an enchanting musical universe where everything is pure, powerful, and aesthetically sublime.

This is an amplifier like no other, created by someone whose lifelong pursuit has been the quest for the perfect sound. The extraordinary BHK Signature 250 is the magnum opus of one of the greatest minds in the world of audio amplification, Bascom H. King. His creation skillfully marries a vacuum tube input with a robust MOSFET output, capable of delivering an impressive 250/500 watts per channel.

This amplifier is versatile enough to drive any loudspeaker to its musical best. The BHK Signature 250 is not just another component in your music reproduction chain; it is the lifeblood that vitalizes your musical experience. Wonderfully lush, astonishingly revealing, and meticulously hand-crafted, it is equipped with a host of features designed to redefine your aural journey. These include a zero-loss vacuum tube input stage, a differentially coupled balanced MOSFET output stage, and a to-the-point connectivity suite.

Add to this its extraordinary power output and 2Ω stability, and you have someone that is more than capable of satisfying the most demanding of loudspeaker loads. The BHK Signature series, available in both stereo and mono models, is committed to unearthing the hidden details embedded within your music. With this Signature 250 offering - featuring a unique hybrid design that draws upon a balance of different techniques - your musical experience is about to be transformed. Welcome to the dawn of a new era in audio amplification, brought to life by the one and only PS Audio BHK Signature 250 Power Amplifier.


  1. Zero-loss vacuum tube input stage: The BHK Signature 250 comes equipped with a vacuum tube input stage, enabling it to capture and preserve even the most subtle nuances in your music, allowing for an extraordinarily rich and detailed sound reproduction.

  2. Differentially coupled balanced MOSFET output stage: This feature ensures that the amplifier delivers a powerful and precisely controlled output that is capable of driving even the most demanding loudspeakers to their musical best.

  3. Solid copper, gold plated output binding posts: Double the conventional number, these ensures a high-quality and reliable connection to your speakers.

  4. Fully balanced from input to output: This design helps reduce unwanted noise and interference, ensuring the cleanest possible reproduction of your music.

  5. High compatibility: Features both RCA Single Ended and XLR Balanced Inputs for easy integration into any audio system.

  6. High power: The BHK Signature 250 Power Amplifier outputs a powerful 250 watts into 8Ω loudspeakers and an impressive 500 watts into 4Ω speakers, ensuring it has the muscle to drive even the most power-hungry loudspeakers.

  7. Achieves <0.1% THD: Total Harmonic Distortion less than 0.1% means that the amplifier stays true to the original sound, free from sound coloration or distortion.

  8. Front panel standby button: Allows easy disabling of the vacuum tube input when not in use to extend tube life.

  9. 2Ω stable: Stable operation into 2-ohm loads is a rare feature for a power amplifier and assures compatibility with a wide range of speakers and ensures the amplifier is able to deliver its full power regardless of speaker impedance.

  10. 12-volt trigger: This feature adds convenience by allowing the amplifier to be turned on or off remotely.


  1. Amazing clarity and precision: The BHK Signature 250 allows you to experience your music with a level of clarity and precision that is utterly enchanting.

  2. Unmatched sound consistency: Exceptional stability even under demanding speaker loads, ensures your music sounds consistently incredible, regardless of volume or complexity.

  3. Maximizes potential of speakers: By delivering an extraordinary power output, the BHK Signature 250 helps unlock the full performance potential of your loudspeakers.

  4. Suitable for all music genres: Whether you’re listening to a beautifully complex orchestral piece or an energetic rock anthem, this power amplifier will deliver every note with crispness and clarity.

  5. Lifelike musical presentation: The vacuum tube input stage offers the advantages of warmth, detail, and the lifelike presentation tubes are famous for.

  6. Optimized power supply: The BHK Signature 250 is designed to effectively filter out any power supply noise, providing an optimized supply for the amplifier circuits and ensuring the cleanest possible sound.

  7. Lowers distortion: With less than 0.1% total harmonic distortion, the BHK Signature 250 creates a near-perfect reproduction of your music, resulting in a sound that is as true to the original recording as possible.

  8. Robust and durable: The overall construction of this amplifier is robust, ensuring that the BHK Signature 250 is as durable as it is powerful.

  9. Luxury finish: Not only does this amplifier perform to the highest standards, but its luxury finish also makes it an attractive addition to any high-end audio system.

  10. Exceptional value: Despite its considerable Kudos, the BHK Signature 250 represents superb value, especially considering the spectacular sound improvement it will bring to your music system.

ℹ Specifications
Specification Detail
Product Type BHK Signature 250 - Power Amplifier
Manufacture PS Audio
Sound output 250/500 watts per channel
Stability 2Ω stable Signature 250 stereo
Distortion Less than 0.1% thd 20Hz to 20kHz at rated power
Damping factor 100 for excellent loudspeaker control
Input RCA Single ended input, XLR balanced input
Frequency Response -3dB greater than 200kHz
Construction Hand build, All through hole construction (no surface mount parts)
Standby button Front panel standby button for vacuum tube input
Binding posts Dual, custom, solid copper, gold plated output binding posts
Signal Flow Fully balanced from input to output
Weight 83 pounds
Trigger Input 12 volt trigger
Accessibility Easy access for tubes
Availability In both Stereo and Mono models
Device Type Hybrid design with vacuum tube input and MOSFET output
Loudspeaker Power 250 watts/per channel into an eight-Ohm loudspeaker, 500 watts/channel into four-Ohms, stable into 2-Ohms
Input Stage Design Triode vacuum tube in a modern configuration with Russian Gold Lion 6922s
Output Stage Design MOSFETs handling power without additional circuitry
Construction Start Date 2014
Power Transformers Two, one for vacuum tube input stage, the other for MOSFET power output stage
Component Selection Hand selected passive components for cleanest path possible
Output Connectors Custom machined out of copper then polished and gold plated
Unit Dimensions 434.3mm (17.1”) x 221mm (8.7”) x 355.6mm (14”)
Unit Weight 83 lbs [37.6 kg]
Color Options Black, Silver
Voltage 230V Mains
Power Inputs IEC C14
Mains Fuse Compliment 1 - 1.6 amp slow blow H-rated 5x20mm, 1 - 5 amp slow blow H-rated 5x20mm
Rail Fuses 4 - 10 amp fast blow H-Rated 5x20mm
Included Accessories US (NEMA 5-15P), Schuko (CEE7/7), UK (BS 1363)
Audio Inputs RCA (Unbalanced), XLR (Balanced)
Speaker Outputs Signature 250 Gold plated copper binding posts (2 pair per channel)
Other DC Trigger Input, 3.5mm 5-15VDC

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