Designed
to complement the 300B power amplifier and the new KT88 amplifier - this all new pre-amplifier
includes many new ideas and features, yet builds on CR's
great experience in tube design.
The pre-amplifier
is constructed on printed circuit boards to ensure a reliable and
consistent product with minimal variations from one unit to another.
The
main PCB contains the phono input and equalisation, line level
pre-amplifier and output stages.
The
line level pre-amplifier stages are arranged on the double-sided PCB in a dual
mono configuration to minimise cross-talk wherever
possible.
Single
ended and balanced input and outputs are provided to ensure compatibility
with a wide range of input sources and power amplifiers.
For
the phono input, 3 triodes
are used
per channel
for gain and equalisation. Accurate R1AA equalisation is achieved using
some negative feedback, and close tolerance polypropylene capacitors
carefully selected for this sensitive part of the pre-amplifier.
This is a 2-box design with an external
power supply unit, housed in a small matching metal box. The illuminated
VU meters complete a combination of retro and professional style. A
separate tube stage ensures there is no interference with audio signals.
