Operator’s Guide
8
COMPRESS
LED – This LED displays the status of the mixer’s compression system.
It lights whenever compression is limiting the sound level. For each
microphone channel with compression enabled, limiting begins to occur at
approximately 0 VU. The
COMPRESS
LED
shows
green
at
3dB
gain reduction,
yellow at
6dB
, and
red
when compressing by
9dB
. Your mixer’s DSPs perform
compression independently on each enabled microphone while adding virtually
no distortion.
To use the mixer’s compressor, first make sure that compression is
enabled on the desired mic inputs (see page 28). Then adjust each mic’s level
control until the
COMPRESS
LED blinks
green
and perhaps yellow on level
“peaks”. If totally dark, you may want to turn up that channel. On the other
hand, if the
COMPRESS
LED illuminates
red
, the channel in use is set too high
and constantly “hitting” the compression. In this case, reduce that mic level.
If you find that the
COMPRESS
LED remains dark for enabled mics in all
conditions, or lights
red
even though the sound is barely adequate, adjust the
volume of your power amplifier accordingly – you or your system installer
should perform or repeat the procedure on Page 18.
Prefade bus and Headphone jack
– Press an input’s
PREFADE
button to place
that input on the Prefade bus. Press it again to remove the input. The input’s
LED turns yellow, and the input can be heard at the Headphone jack, regardless
of its Gain setting. When Prefade bus is in use, the Level Meter responds to the
Prefade level instead of the main output level.