No Products in the Cart
Original Box not available. Comes only with the Amplifier and the 110V Transformer.
Condition: Pre-owned unit sold as-is. Test in our showroom before purchase. No refunds on pre-owned units.
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, delivers the most sonically transparent level control. The output stage is a high-bias class A MOSFET design that is unaffected by cable and power amplifier interface challenges.
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 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. It 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.
| Specification | Value |
| Physical | |
| Unit Weight | 9.97 kg (22 lbs) |
| Unit Dimensions (W×D×H) | 43 × 36 × 10 cm (17" × 14" × 4") |
| Shipping Weight | 14 kg (31 lbs) |
| Shipping Dimensions | 61 × 52 × 25 cm (24" × 20.5" × 10") |
| Power Requirements | |
| Input Power | Model specific 100VAC, 120VAC, or 230VAC 50/60Hz |
| Power Consumption | 60W |
| Audio Inputs | |
| Coaxial RCA (Single Ended) | 5 |
| XLR (Balanced) | 5 |
| Input Impedance (Unbalanced) | 33kΩ minimum |
| Input Impedance (Balanced) | 66kΩ minimum |
| Sensitivity | Unbalanced: 1.3V/33kΩ Balanced: 1.3V/66kΩ |
| Audio Outputs | |
| Coaxial RCA (Single Ended) | 2 |
| XLR (Balanced) | 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 |
| DC Triggers | |
| +12V Triggers | 2 |
| Headphone Performance | |
| Output Power (300Ω) | >200mW |
| Output Power (16Ω) | >4.0 Watts |
| S/N Ratio | >90dB (1kHz) |
| THD & IM (1 volt out) | <0.02% |
| Output Impedance | <0.5Ω |
