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 |