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PS Audio BHK Stereo 250 Power Amplifier
Stereo 250 Watt no compromise power amplifier
The BHK Signature 250 stereo power amplifier bears no witness to compromise. No construction details were overlooked, no performance weakness tolerated. This stereo power amplifier is the industry reference standard for performance—an investment grade musical instrument that brings music to life. The BHK Signature 250 stereo is built upon two proven topologies: a zero-loss vacuum tube input stage coupled to a high bias differentially balanced MOSFET output. 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.
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.
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.
Unit Weight: 83 lbsUnit Dimensions: 17.1” x 8.7” x 14” Chassis only. 15" deep including connectors.Shipping Weight: 92 lbsShipping Dimensions: 21”x 13” x 19”Color Options: Black, SilverVoltage Options: Factory set only Japan 100V, North America 120V, Europe/Asia/Australia/New Zealand 230VMains Power Inputs: IEC C14Fuse Compliment all Countries: 4 - 10 amp fast blow H-Rated 5x20mm Rail FusesFuse Compliment Mains:100vac Countries:1 - 2 amp slow blow H-rated 5x20mm1 - 12 amp slow blow H-rated 5x20mm120vac Countries: 1 - 1.6 amp slow blow H-rated 5x20mm 1 - 10 amp slow blow H-rated 5x20mm230vac Countries: 1 - 1 amp slow blow H-rated 5x20mm 1 - 5 amp slow blow H-rated 5x20mmAccessories 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 5-15VDCWarranty: 3 years parts and labor on unit, 1 year on vacuum tubePower Consumption:@Ready 75 Watts@Idle 175 Watts@Rated power 8Ω 850 Watts@Rated power 4Ω 1600 WattsSignalGain: 30.5dB +/-0.5dBSensitivity for rated output power of 250 watts into 8Ω: 1.3VNoise: 100-20KHz <-85dBVInput impedance Signature 250 stereo: Unbalanced 100KΩ, Balanced 200KΩInput impedance Signature 300 mono: Unbalanced 50KΩ, Balanced 100KΩOutput Impedance: 50Hz, 2.8VRMS <0.1ΩFrequency Response: @2.8VRMS, 10Hz – 20KHz +/- 0.1dB, 10Hz – 200KHz +0.1/-3.0dBTHD&IM1KHz, 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 AmplifierOutput PowerBoth channels driven 120vac mains, 1kHz, 1% THD8Ω 250W minimum4Ω 500W minimum2Ω Stable for musical transientsDamping factor >150Signature 300 Mono AmplifierOutput Power120vac mains, 1kHz, 1% THD8Ω 300W minimum4Ω 600W minimum2Ω 1000WDamping factor >350
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