PS AUDIO BHK Signature 250 Stereo Amplifier Silver
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.
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.
Specifications:
| 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 |
|
| @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 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 |
|
| 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 |
Full 3 Year Warranty
