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Technical information
The circuit is constructed implying the shortest possible signal paths to
ensure best high frequency characteristics. The ground is focused in one
centre point. All construction is optimised in capacity and inductive man-
ner.
The system is supervised and controlled by a powerful microprocessor.
The digital section is separated and shielded from the analog section.
The power supply is provided by a 100 VA toroid transformer. The filter
capacity is as large as 40 000
µ
F. All supply voltages are cleaned twice,
by pre voltage regulators and local voltage regulators.
All amplifiers are optimized using the most modern discrete circuitry. The
volume is regulated by a precision resistor network instead of a simple
and fault susceptible potentiometer.
The PRE 1 G2 is driven by a microcontroller system. Information about
the current state is shown by a 2*16-character display. Input names can be
set individually as well as the volume offset of each input channel. There
is a separate menu available to adjust the balance.
Overall the PRE 1 G2 offers 6 inputs. You can connect two different
power amplifiers as well.
Two high performance outputs and a powerful monitor loop for recording
and controlling purposes are also available.
Optional features are a IR remote control, phono module, 24bit D/A con-
verter and external power supply (Audionet EPS).
Fundamentals
Power-supply
Circuit
Features
