PS AUDIO BHK SIGNATURE 250
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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.
Inizio modulo
Nothing in the design of a power amplifier is more important than its input stage when preserving music’s finest nuances. In the BHK Signature, a vacuum tube serves as the perfect interface between the preamplifier and MOSFET output stage. This hybrid approach offers stunning musical performance and unrivaled, effortless drive to the speaker. The Signature 250 Stereo Amplifier is the ultimate choice when a single chassis solution is required.
APPLICATION
The BHK Signature 250 Stereo Amplifier produces 250 watts/ 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. Use this amplifier as the bedrock of your high-performance audio or home theater system. The BHK 250 provides the finest performance, reliability and build quality possible, in a single chassis format.
The importance of the power amplifier in the 2-channel system chain cannot be overstated, yet it's often overlooked. It's the rare few music lovers that truly appreciate the power amp's critical role in preserving music's nuanced details, because most amplifiers fail to preserve them. Overtones from plucked instruments, subtle cues defining placement, depth, soundstage width, and transient decays are often lost in the power amplifier. Suddenly revealed are the tiniest of details that now ring clear through the BHK, perfectly preserved through its low feedback, vacuum tube and MOSFET design. When it comes to musically controlling and powering loudspeakers, the BHK Signature has few peers at any price. 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.
Features
ZERO LOSS INPUT TUBE
POWERFUL MOSFET OUTPUT STAGE
THROUGH-HOLE CONSTRUCTION
RCA SINGLE-ENDED INPUT
XLR "TRUE" BALANCED INPUT
250 WATTS PER CHANNEL 8Ω
500 WATTS PER CHANNEL 4Ω
2Ω STABLE
-3dB > 200khz
< 0.1% THD 20Hz - 20kHz AT RATED POWER
DAMPING FACTOR = 100
FRONT PANEL STANDBY BUTTON
BALANCED INPUT TO OUTPUT
DUAL, COPPER, PLATED, OUTPUT BINDING POSTS
83 LBS.
INPUT 12 VOLT TRIGGER
Specifications
BHK Signature 250 Stereo and BHK Signature 300 Mono |
|
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 |
Voltage Options |
Japan 100V |
Mains Power Inputs |
IEC C14 |
Fuse Compliment all Countries |
4 – 10 amp fast blow H-Rated 5x20mm Rail Fuses |
Fuse Compliment Mains |
100vac Countries |
Accessories Included |
US (NEMA 5-15P) (all versions) |
Audio Inputs |
RCA (Unbalanced) |
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 |
Warranty |
3 years parts and labor on unit |
Power Consumption |
|
@Ready |
75 Watts |
@Idle |
175 Watts |
@Rated power 8Ω |
850 Watts |
@Rated power 4Ω |
1600 Watts |
Signal |
|
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 |
Input impedance Signature 300 mono |
Unbalanced 50KΩ |
Output Impedance |
50Hz, 2.8VRMS <0.1Ω |
Frequency Response |
@2.8VRMS |
THD&IM |
|
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 |
|
Output Power |
Both channels driven 120vac mains, 1kHz, 1% THD |
8Ω |
250W minimum |
4Ω |
500W minimum |
2Ω |
Stable for musical transients |
Damping factor |
>150 |
Signature 300 Mono Amplifier |
|
Output Power |
120vac mains, 1kHz, 1% THD |
8Ω |
300W minimum |
4Ω |
600W minimum |
2Ω |
1000W |
Damping factor |
>350 |