PS Audio BHK Signature Preamplifier

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Colour: Black
Price:
Sale price$9,495

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Description

  • Zero-loss vacuum tube input stage

  • User accessible switch allows both 12 volt and 6 volt tubes to be used

  • Differentially coupled balanced MOSFET output stage

  • All through hole construction (no surface mount parts)

  • PRP resistors in signal path

  • 5 RCA Single ended inputs

  • 5 XLR balanced inputs

  • Single ended and balanced outputs

  • Single ended and balanced outputs can be used together or separate

  • Fully balanced input to output

  • High current oversized power transformer

  • Fully regulated power supplies using BHK designed MOSFET discrete voltage regulators

  • Full BHK designed zero feedback, discrete MOSFET headphone stage

  • Remote control

  • Front panel standby button for vacuum tube stage

  • -3dB greater than 200kHz

  • Volume and balance through a revolutionary new combination of gain and attenuation control

  • Two output DC control triggers

  • Easy access to tubes if you want to roll with different ones

  • Each input can be configured as a HT bypass

 

BHK Signature Preamplifier

State of the Audio Art in musical preamplification

 

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

Preamplifiers are the heart of any high-end music system controlling input selection, the critical first amplification stage, volume and balance functions, and the all important electrical isolation between sources and power amplifiers. Place the BHK Signature Preamplifier between your musical sources, such as a phono preamp, DAC, tuner or auxiliary source–and your power amplifier–and magic happens. Suddenly you are enveloped in a wealth of musicality you’ve not yet experienced: deeper, wider sound staging, improved separation of instruments and voices, Subterranean bass, extended highs, and an openness you have yet to experience without this instrument in the system.

Specifications

Physical


Unit Weight 22 lbs [9.97 kg]
Unit Dimensions 17” x 14” x 4” [ 36cm x 43cm x 10cm]
Shipping Weight 31 lbs [14 kg]
Shipping Dimensions 20.5”x 24” x 10” [52cm x 61cm x 25cm]

Power requirements


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

Audio inputs


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

Audio Outputs


Coaxial RCA single ended
XLR Balanced
2
2

Analog Audio Output


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

DC Triggers


+12V 2

Headphone Performance


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

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