SoundCraft GIGRAC User Manual page 25

(10) 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 the possible damage to your loudspeakers,
make sure that the Main and Monitor Master Volume
controls are turned downfully before switching on the
(11) Graphic Equaliser (11) Graphic Equaliser
(11) Graphic Equaliser (11) Graphic Equaliser (11) Graphic Equaliser
The Graphic Equaliser is divided into 7 frequency bands. Each frequency
band can be used to either 'cut' or 'boost' the Main Output signal by up
to 10dB.
The Graphic Equaliser is very useful for compensating for poor room
acoustics or improving the performance of your loudspeakers.
(12) Main To Amp/Mon To Amp switch
This switch is usually set to 'Main To Amp' (Up position), which means
that the output from the Main Master Volume (8) is sent to the internal
amplification and then out of the Speaker Outputs on the rear of the
GigRac.
Alternatively it is possible by pressing the switch down, to send the
output from the Mon Master Volume (9) to the internal amplification
and then out of the Speaker Outputs.
When the 'Mon to Amp' mode is selected the Main Output is not sent to
the Speaker 1 and Speaker 2 outputs but is available at the Main output
Jack socket (18)
(13) Power LED
The red Power LED illuminates when the GigRac is switched on.
48V phantom power.
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