VAC Auricle Preamplifier User Manual
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6
FRONT PANEL CONTROLS
Although most of the front panel controls (Volume, Power, Mute) are self explanatory, VAC
has outfitted this unit with several advanced features which bear further description:
Mute:
Toggles between the "Mute" and "Operate" condition. When muted, the
indicator light is illuminated.
Power:
Turns the unit off and on.
Mono:
Causes the left & right channels to be electrically added. Generally, this will
reduce background noise and distortion when playing monophonic analogue
phonograph records.
Selector:
This switch selects between L1 through L3 and the PHONO input. Rotate
counterclockwise to move down through the inputs, clockwise to move up
through the inputs.
Note: The MM input provides 44 dB of gain, suitable for use with MM (moving
magnet) and many high-output MC (moving coil) cartridges.
Tape:
This switch selects between the signal coming from the main selector or the
signal connected to the “TAPE IN” jacks.
Volume:
Controls the main output level for all inputs.
Balance:
Alters the signal levels between the left & right channels. This may be used to
compensate for uneven room acoustics and speaker differences, or
imbalance in source components. May also be used to compensate for slight
variations in gain as tubes age.