BHK Signature 250 Amplifier
BHK Signature 250 Amplifier
The BHK 250 stereo power amplifier is an industry reference standard for performance—a 250 watt per channel investment grade musical instrument that brings life to music.
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. When cost-no-object performance is the goal there are a rare handful of power amplifiers capable of transporting listeners into a musical space few are able to enjoy. The BHK Signature 250 is one such amplifier. Lush, gorgeous, powerful, revealing, hand built, perfect. 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.
Regular price
$4,249.00 USD
Regular price
$8,499.00 USD
Sale price
$4,249.00 USD
Unit price
per
Shipping calculated at checkout.
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Design
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Application
Technology
![](http://www.psaudio.com/cdn/shop/files/BHK-250-left-side-silver-768x768.png?v=1670984756&width=1500)
![](http://www.psaudio.com/cdn/shop/files/BHK-300-One.png?v=1670984768&width=1500)
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Features
Specifications - BHK Signature 250 Amplifier
BHK Signature 250 Stereo and BHK Signature 300 Mono |
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Unit Weight | 83 lbs [37.6 kg] |
Unit Dimensions | 17.1” x 8.7” x 14” Chassis only. 15" deep including connectors. |
Shipping Weight | 92 lbs [41.7 kg] |
Shipping Dimensions | 21”x 13” x 19” |
Color Options | Black Silver |
Voltage Options Factory set only |
Japan 100V North America 120V Europe/Asia/Australia/New Zealand 230V |
Mains Power Inputs | IEC C14 |
Fuse Compliment all Countries | 4 - 10 amp fast blow H-Rated 5x20mm Rail Fuses |
Fuse Compliment Mains |
100vac Countries 1 - 2 amp slow blow H-rated 5x20mm 1 - 12 amp slow blow H-rated 5x20mm 120vac Countries 1 - 2 amp slow blow H-rated 5x20mm 1 - 10 amp slow blow H-rated 5x20mm 230vac Countries 1 - 1.6 amp slow blow H-rated 5x20mm 1 - 5 amp slow blow H-rated 5x20mm |
Accessories Included | US (NEMA 5-15P) (all versions) Schuko (CEE7/7) (230V version) UK (BS 1363) (230V version) |
Audio Inputs | RCA (Unbalanced) XLR (Balanced) |
Speaker Outputs Signature 250 | Gold plated copper binding posts (2 pair per channel) |
Speaker Outputs Signature 300 | Gold plated copper binding posts (2 pair) |
Other | DC Trigger Input 3.5mm 5-15VDC |
Warranty | 3 years parts and labor on unit 1 year on vacuum tube |
Power Consumption |
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@Ready | 75 Watts |
@Idle | 175 Watts |
@Rated power 8Ω | 850 Watts |
@Rated power 4Ω | 1600 Watts |
Signal |
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Gain | 30.5dB +/-0.5dB |
Sensitivity for rated output power of 250 watts into 8Ω | 1.3V |
Noise | 100-20KHz <-85dBV |
Input impedance Signature 250 stereo | Unbalanced 100KΩ Balanced 200KΩ |
Input impedance Signature 300 mono | Unbalanced 50KΩ Balanced 100KΩ |
Output Impedance | 50Hz, 2.8VRMS <0.1Ω |
Frequency Response | @2.8VRMS 10Hz – 20KHz +/- 0.1dB 10Hz – 200KHz +0.1/-3.0dB |
THD&IM |
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1KHz, 1W/8Ω | <0.01% |
20-20KHz, 1W/8Ω | <0.1% |
1KHz, 200W/8Ω | < 0.1% (120VAC Mains input) |
1KHz, 400W/4Ω | < 0.1% (120VAC Mains input) |
Signature 250 Stereo Amplifier |
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Output Power |
Both channels driven 120vac mains, 1kHz, 1% THD |
8Ω | 250W minimum |
4Ω | 500W minimum |
2Ω | Stable for musical transients |
Signature 300 Mono Amplifier |
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Output Power |
120vac mains, 1kHz, 1% THD |
8Ω | 300W minimum |
4Ω | 600W minimum |
2Ω | 1000W |
Reviews
![](http://www.psaudio.com/cdn/shop/files/Stereo_Times_fc351ced-9394-48dd-8159-4bb64d0cec83.jpg?v=1689279658&width=1500)
I confess I have no criticism of the BHK 250's sonic performance—only
high praise. It is extended and detailed at both frequency extremes and has an immediate, musical, and open
sounding midrange (all qualities I love)…. Although the PS Audio BHK Signature 250 stereo amplifier is
higher priced than most amplifiers I have used, for an amplifier of this pedigree and obvious premium
quality I believe it is quite the bargain at its current $7,499 price tag. In fact, I would seriously
consider snapping one up while this price is still available. So I think I will just buy this beastie and be
thrilled with it! Very highly recommended!
Stereo Times
Frank Alles
![](http://www.psaudio.com/cdn/shop/files/Absolute_Sound_26c9dd36-4155-4aae-bffe-77894ae4e3c9.jpg?v=1689279944&width=1500)
They have truly exceptional imaging, depth, and natural soundstage
width, and they really can get the best out of the naturally miked and produced recordings that have a
real-world soundstage. The 300s' dynamics are extraordinary, particularly in the lower octaves that seem to
be in even more demand for audio reproduction today than the upper octaves.
The Absolute Sound
Anthony Cordesman
![](http://www.psaudio.com/cdn/shop/files/stereophile_02f6f5ee-aeaf-441d-8e1d-73964ccb78a8.jpg?v=1675189026&width=1500)
The fact is, the BHK Signature 300 is a powerful, nimble-sounding
amplifier that immediately drew me in with fast, punchy, tight bass; rich, liquid mids; and delicate,
transparent highs—all effectively well integrated into a coherent whole.
Stereophile
Michael Fremer
![](http://www.psaudio.com/cdn/shop/files/Positive_Feedback_536f1097-0fdb-49fb-b6a9-6ed6e7a5394f.jpg?v=1675189045&width=1500)
I can't recommend the BHK 250 enough. Like I said I bought this one
and it is now here between the speakers with the Claytons off on a rack. I won't sell the Claytons ever and
for sure they will eventually find their way back into the system.
Positive Feedback
Dave Clark
![](http://www.psaudio.com/cdn/shop/files/Testata-FDS_1.jpg?v=1675205593&width=1500)
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.
Fedeltà del Suono
Giulio Salvioni
![](http://www.psaudio.com/cdn/shop/files/Audio-Video.jpg?v=1675205001&width=1500)
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.
Audio Video Magazine
Deon Schoeman
Bascom, Paul, and Arnie's combined 150 years of audio excellence has
led to a design of classic physical beauty and sonic excellence that easily achieves the goal of competing
with über-level amplifiers, but at a fraction of the retail price. As audiophiles, we sometimes fall into
the 'price equals performance' trap. We fear being the emperor with no clothes when our friends ask how much
we paid and it was, gasp! LESS than what flagship gear is supposed to cost. Naturally it must not be that
good. This amp is that that rare Holy Grail whose sensible price belies its astounding performance. Hand
built in America, it may well be your final amplifier purchase.
HiFi Plus
Eric Neff
![](http://www.psaudio.com/cdn/shop/files/2016-brutus-bhkpreamp.png?v=1675194216&width=1500)