Demonstrations By Appointment
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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. 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.
Physical |
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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] |
Power requirements |
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Input Power | Model specific 100VAC, 120VAC, or 230VAC 50 or 60Hz |
Power Consumption | 60W |
Audio inputs |
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Coaxial RCA single ended XLR Balanced |
5 5 |
Input Impedance Unbalanced (RCA) Balanced (XLR) |
33KΩ minimum 66KΩ minimum |
Audio Outputs |
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Coaxial RCA single ended XLR Balanced |
2 2 |
Analog Audio Output |
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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 |
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+12V | 2 |
Headphone Performance |
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Output Power 300Ω 16Ω > |
>200mW 4.0 Watts |
S/N Ratio | 1kHz >80dB |
THD & IM 1 volt out | 0.02% |
Output Impedance | 0.5 |