Von Audio Equipment Mauritz
http://www.mauritzaudio.de
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Product category: Power Amplifier
BHK 250 von PsAudio
28.03.2018
RIHPA HiFi-Award Stereoendstufe PsAudio BHK250
The BHK Signature is a hybrid design
enjoying performance benefits from multiple
design techniques including,
a balanced differential vacuum tube input,
balanced differential MOSFET power outputs, and
separate, isolated, analog power supplies feeding each.
When it comes to musically controlling and powering
loudspeakers, the BHK Signature has no peer.
The stereo Signature 250 produces 250 watts/per channel
into an eight-Ohm loudspeaker,
500 watts/channel into four-Ohms, and
stable into 2-Ohms; enough power
to satisfy even the hungriest of loads.
The BHK Signature input features a classic
triode vacuum tube in a modern configuration.
Hand matched pairs of Russian Gold Lion 6922s
are self-biased with constant current and high voltage,
free of timing and phase distortion
without the use of negative feedback.
They provide the perfect interface between the
delicate musical transitions output by the DAC
or preamplifier, and are electrically isolated from
the BHK power output stage which is connected to the
loudspeaker.
The hybrid approach used in the BHK Signature takes
advantage of the best traits technology has to offer,
unavailable in traditional solid state or tube designs.
While vacuum tubes are the perfect input stage, they cannot
make the same claim on a power amplifier’s output.
Conversely, solid state designs are correct for output
stages, but
suffer when used as inputs.
Only a hybrid approach takes advantage of the best in both
disciplines.
Input impedance Unbalanced 100KΩ
Balanced 200KΩ
Output Impedance 50Hz, 2.8VRMS
The BHK Signature is a hybrid design
enjoying performance benefits from multiple
design techniques including,
a balanced differential vacuum tube input,
balanced differential MOSFET power outputs, and
separate, isolated, analog power supplies feeding each.
When it comes to musically controlling and powering
loudspeakers, the BHK Signature has no peer.
The stereo Signature 250 produces 250 watts/per channel
into an eight-Ohm loudspeaker,
500 watts/channel into four-Ohms, and
stable into 2-Ohms; enough power
to satisfy even the hungriest of loads.
The BHK Signature input features a classic
triode vacuum tube in a modern configuration.
Hand matched pairs of Russian Gold Lion 6922s
are self-biased with constant current and high voltage,
free of timing and phase distortion
without the use of negative feedback.
They provide the perfect interface between the
delicate musical transitions output by the DAC
or preamplifier, and are electrically isolated from
the BHK power output stage which is connected to the
loudspeaker.
The hybrid approach used in the BHK Signature takes
advantage of the best traits technology has to offer,
unavailable in traditional solid state or tube designs.
While vacuum tubes are the perfect input stage, they cannot
make the same claim on a power amplifier’s output.
Conversely, solid state designs are correct for output
stages, but
suffer when used as inputs.
Only a hybrid approach takes advantage of the best in both
disciplines.
Input impedance Unbalanced 100KΩ
Balanced 200KΩ
Output Impedance 50Hz, 2.8VRMS