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PS Audio BHK Mono 300 Power Amplifier
The gold standard of power amplification
The audio performance and build quality of the Signature 300 series has been refined, honed, and polished over the past half century of design work by industry legend, Bascom H. King. If there is a better performing power amplifier anywhere in the world, we are unaware of it. The BHK Signature 300 Monoblock designs are 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, the BHK Signature 300 series is a perfect fit. Only a rare handful of power amplifiers withstand the test of time. The BHK Signature 300 is one such amplifier. Hand built, uncompromising.
The BHK Signature 300 Mono power amplifier culminates one man’s lifelong quest for perfection in power amplification. Bascom H. King’s magnum opus combines a pair of vacuum tubes on its input with a double set of parallel MOSFET outputs capable of 300 watts in 8Ω, 600 into 4Ω and more than 1,000 watts into 2Ω. The BHK Signature 300 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 100VNorth America 120VEurope/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 5x20mm 1 - 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:@2.8VRMS10Hz – 20KHz +/- 0.1dB10Hz – 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 Power: Both channels driven 120vac mains, 1kHz, 1% THD8Ω: 250W minimum4Ω: 500W minimum2Ω: Stable for musical transientsDamping factor: >150Signature 300 Mono AmplifierOutput Power: 120vac mains, 1kHz, 1% THD8Ω: 300W minimum4Ω: 600W minimum2Ω: 1000WDamping factor: >350
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