OPERATION.
Front Panel.
The front panel controls are identified in fig.2.
Pre-Amplifier section.
Phantom Power.
+48V Phantom power may be applied to the microphone input socket by depressing
the “+48V” switch on the front panel. Phantom power should only be used with
suitable microphones (i.e. condenser microphones).
WARNING:
Always turn the master output level to minimum before
switching phantom power on or off, and before
connecting or disconnecting a microphone. Failure to set
the level to minimum may result in a loud click or
thump in your monitor loudspeakers.
Microphone Input.
When using the voice processor with a microphone input, care should be taken not to
apply too much gain at the input. Start with the input gain control set to minimum, and
the output master at the mid-point (12 o’clock position). The input gain can then be
gradually increased until the peak LED illuminates on the loudest peaks only. The
master output level should then be adjusted to produce the required output.
Line Input.
A line level signal should already be at about the correct operating level, but this may
be checked by bypassing the compressor (i.e. turning off the COMP IN switch) and
monitoring the level on the bargraph meter. The input gain should be adjusted until the
0dB LED is illuminated on music of normal loudness, with the red LEDs illuminating
occasionally on higher volume peaks.
