PS Audio

PS Audio BHK Signature Preamplifier

 
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  • Regular price $9,495.00


BHK Signature Preamplifier

State of the Audio Art in musical preamplification

Built-in Boulder

Preamps can make or break a system; holding back rich details buried in the music. They are the critical link between sources and power amplifiers. Precious few of them–only a handful really–uncover, preserve and amplify the rich bloom of music. The BHK Signature Preamplifier is one of the rare few that brings out the magic.

“In my 50 plus years of reviewing, designing and just listening to music, I have never heard my system sound this open, dynamic and….magical…and the bass!” Bascom H. King

Introducing one of the most remarkable musical instruments in the world, the BHK Signature Preamplifier. This exceptionally built vacuum tube preamplifier opens up the music and reveals nuances, life and space not previously heard on your system. It is the perfect interface between your sources and power amplifier. Designed by Bascom H. King, the BHK Signature distills Bascom’s 50 plus years of high-end audio design experience into a single masterpiece of audio amplification. “This is the best sounding preamplifier I have ever designed or heard,” and that’s saying a lot for a man of Bascom’s experience.

Left-web

Preamplifiers play a critical role in any separates audio system, strategically positioned between sources of music: CD players, phono preamps, DACs, tape recorders and tuners – and your power amplifier – the preamp serves essential roles of control and isolation. Control is simple in concept, but extraordinarily difficult to design in an acoustically transparent manner. Control duties such as input switching, volume, balance, and amplification can place unwanted acoustic thumbprints on the music if not designed with extraordinary care. The challenge in any design is to do as little damage to music’s purity as possible. Details on how each section of the BHK Signature executes control with minimal sonic impact can be found in the Overview section on this page.  

 

Specifications

Unit Weight 22 lbs [13.5 kg]
Unit Dimensions 14” x 17” x 4” [ 36cm x 43cm x 10cm]
Shipping Weight 31 lbs [19 kg]
Shipping Dimensions 20.5”x 24” x 10” [52cm x 61cm x 25cm]

Input Power Model specific 100VAC, 120VAC, or 230VAC 50 or 60Hz
Power Consumption 60W

Coaxial RCA single ended 
XLR Balanced
5
5
Input Impedance
Unbalanced (RCA) 
Balanced (XLR)
33KΩ minimum
66KΩ minimum
Sensitivity Unbalanced 1.3V/33KΩ
Balanced 1.3V/66KΩ

Coaxial RCA single ended
XLR Balanced
2 
2

Output level 4.0 Vrms
Output Impedance <100Ω
Frequency Response
20-20KHz
+/- 0.1dB
THD&IM @ 1KHz (full scale) <0.03%
Bandwidth -3dB 0.1Hz - 200kHz

Output Power
300Ω 
16Ω >
>200mW
4.0 Watts
S/N Ratio >90dB (1KHz)
THD & IM 1 volt out <0.02%
Output Impedance <0.5Ω