PS Audio

PS Audio BHK Signature 300 Mono Amplifiers (Pair)

 
  • Sale
  • Regular price $24,995.00


BHK Signature 300 Mono Amplifiers

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.

The BHK Signature 250 and 300 power amplifiers are the culmination of one man’s half-century search for perfection in music’s reproduction. Bascom H. King has designed amplifiers for many companies, some selling in excess of $100,000, including: Constellation Audio, Marantz, Infinity, and Conrad Johnson. This is the first amplifier Bascom felt was good enough to lend his name to. It is his finest achievement in a lifetime of work.

Specifications

Unit Weight 83 lbs
Unit Dimensions 17.1” x 8.7” x 14” Chassis only. 15" deep including connectors.
Shipping Weight 92 lbs
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 - 1.6 amp slow blow H-rated 5x20mm
1 - 10 amp slow blow H-rated 5x20mm
230vac Countries
1 - 1 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

@Ready 75 Watts
@Idle 175 Watts
@Rated power 8Ω 850 Watts
@Rated power 4Ω 1600 Watts

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

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 300 Mono Amplifier

120vac mains, 1kHz, 1% THD
8Ω 300W minimum
4Ω 600W minimum
2Ω 1000W
Damping factor >350