PS AUDIO - BHK SIGNATURE PREAMPLIFIER

$8,599.00

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Color
Black
Silver
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Product Details

Preamplifiers are at the heart of any high-performance music system. They are the critical controlling interface between our sources of music and our loudspeaker chain. Most preamplifiers do a fine job of control and isolation, but only a rare handful make magic happen. Add the BHK Signature Preamplifier into your system and 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’re unlikely to have experienced without this instrument in the system.

DESIGN

The BHK Signature Preamplifier features two 12AU7 dual triode vacuum tubes in the input stage that act as a zero feedback balanced input amplification pair. A combination of an input stepped attenuator, built around the highest quality passive components for coarse volume adjustments, coupled with controlling the actual gain of the vacuum tube for finer steps, turned out to be the most sonically transparent level control we have yet heard. Finally, the output stage is a high-bias class A MOSFET design that is unaffected by cable and power amplifier interface challenges.

APPLICATION

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. The BHK Signature Preamplifier features 5 identical balanced and single ended inputs, and converts all input signals into a balanced signal for the lowest possible distortion, and can be used in a two-channel audio system or as part of a home theater system. The high-bias Class A MOSFET output stage ensures unmatched performance with any cable and amplifier interface.

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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