PS Audio BHK-S250-US-S Signature Stereo Amplifier (Silver)
- A Stunning Achievement in Power Amplification - This is Bascom H. King's finest work, unequaled in performance at any price.
- The Most Important Element in Your Music Reproduction Chain - Everything in your system funnels into this critical component; anything lost can never be recovered.
- Zero-Loss Vacuum Tube Input Stage is coupled to a high bias differentially balanced MOSFET output.
- Capable of 250/500 Watts per channel this amplifier can drive any loudspeaker to musical perfection.
- This Amplifier Has Few Rivals at Any Price, and, in terms of sheer musicality, openness, tonal richness and accuracy. None.
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BHK Signature 250 Stereo Amplifier
Perfection in music's reproduction.
BHK Signature series is unparalleled in its ability to render details formerly lost in the music. The BHK Signature is a hybrid design enjoying performance benefits from multiple design techniques including: a balanced differential vacuum tube input, balanced differential MOSFET power outputs, and separate, isolated, analog power supplies feeding each.
When it comes to musically controlling and powering loudspeakers, the BHK Signature has no peer. The stereo Signature 250 produces 250 watts/per channel into an eight-Ohm loudspeaker, 500 watts/channel into four-Ohms, and stable into 2-Ohms; enough power to satisfy even the hungriest of loads.
Stunning Attention to Detail
The BHK Signature power amplifiers are unique in their ability to faithfully pass even the tiniest of details. The first listen to the BHK is like pulling a blanket off the loudspeakers. Suddenly revealed are the tiniest of details that now ring clear through the BHK, perfectly preserved through its extraordinary bandwidth, low feedback, vacuum tube and MOSFET design.
Modern Innovation with a Classic Edge
The BHK Signature input features a classic triode vacuum tube in a modern configuration. Hand matched pairs of Russian Gold Lion 6922s are self-biased with constant current and high voltage, free of timing and phase distortion without the use of negative feedback. They provide the perfect interface between the delicate musical transitions output by the DAC or preamplifier, and are electrically isolated from the BHK power output stage which is connected to the loudspeaker.
A Step Above the Rest
The hybrid approach used in the BHK Signature takes advantage of the best traits technology has to offer, unavailable in traditional solid state or tube designs. Most power amplifier designs use both N and P types of transistors in a configuration known as complementary symmetry, despite the N-types having a lower distortion and performing better than P-types. The BHK takes a different approach, one that avoids the problem of uneven performance between N and P devices altogether. Using only N Channel MOSFETS in its output stage, the BHK Signature produces a near-perfect balanced waveform without the degradation inherent in a complimentary design.
"Yes, it's all things you'd expect from a top flight amplifier: powerful and precise, fast and dynamic, generous in its staging, and close in its focus. But its ability to translate those elements into a musically coherent and consistently compelling performance is what sets the BHK Signature apart from any other power amplifier I've listened to. I sense a classic in the making." -Deon Schoeman, "Audio Video Magazine"
"The PS Audio BHK Signature 250 has everything that one would expect from a power amplifier of this category: it’s powerful, fast, accurate, gentle regarding its ability to convey the harmonic complexity of even the most difficult audio tracks and has a great dynamic reserve. Its ability to recreate a coherent and well focused soundstage puts this product among the best power amplifiers regarding this parameter. I could go on for a while extrapolating specific parameters and writing about how well the BHK behaved respect to them, but it would be useless. In my opinion the ultimate reason of the beauty of this poweramp is the ability to translate all these individual elements into a performance that is, at the same time, musically coherent and effective. All this at a cost that must be considered extraordinarily competitive." -Giulio Salvioni, "Suono"
Have you ever wanted to own the finest stereo amplifiers in the world but were scared off by a six-figure price tag? All that is about to change. The BHK Signature 250 Stereo Power Amplifier culminates one man's lifelong quest for perfection in power amplification. - - - Bascom H. King's magnum opus combines a vacuum tube input with a powerful MOSFET output capable of 250/500 watts per channel. The BHK Signature 250 Stereo amplifier can drive any loudspeaker to musical perfection and is the most important element in your music reproduction chain. Everything in your system funnels into this critical component; anything lost can never be recovered. The BHK Signature features a zero-loss vacuum tube input stage coupled to a high bias differentially balanced MOSFET output. - - - This amplifier has few rivals at any price and, in terms of sheer musicality, openness, tonal richness and accuracy, none. - - - 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
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I am lucky enough to get to audition a lot of audio gear. That being said I had the chance to listen and do a few test with the PS300.
Ok, yes this thing sounds good, are there better units in the market today, yes. And for the price I would probably look elsewhere.sometimes not very far down the line. Also the power, is pretty close to its specs. But if your going to spend this kind of money jumping into big league audiophile gear. Then you might as well jump to the big league 100% American made top notch experts in the game.
Now if you could get one for around 3k, then ok. Then i might say go for it. Just remember, with the tubes, you will need maintenance, and
All in all, if your going to step up to this league, then I would suggest going with ATI amps. Their made like a tank, tops in the market, they make amps for some of the best names out there. Sound quality is second to none, power ratings with ATI are conservatively rated.