SoundCraft         GicRac1000st, User Manual

Page: 23 / 74

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(10) Main Master Volume Control
This control determines the overall level that is sent to the internal
amplification and to the Main Output sockets (22) . It also controls the
volume of the headphone socket (21) .
(11) Mon Master Volume Control
This control determines the overall level that is sent to the Monitor
Output (Mon Output) socket (23) .
(12) Phantom 48V Switch
This switch turns the 48v phantom power On/Off for the 3 pin XLR
sockets on channels 1-4. When the switch is turned On the red LED
will illuminate.
48V phantom power is used to power condenser microphones and DI
boxes.
NB! To avoid possible damage to your loudspeakers,
make sure that the Main and Monitor Master Volume
controls are turned down fully before switching on the
48V phantom power.
(13) Graphic Equalisers
The Graphic Equalisers are divided into 7 frequency bands. Each frequency
band can be used to either ‘ cut ’ or ‘ boost ’ the Main Output signal by up
to 10dB. One is in the main (stereo) path, the other is in the monitor
path.
They are very useful for compensating for poor room acoustics or
improving the performance of your loudspeakers.
(14) Power LED
The red Power LED illuminates when the GigRac is switched on.