25. MAIN L, R GRAPHIC EQ – This 7-band graphic EQ 25. MAIN L, R GRAPHIC EQ
is used to customize the sound of the MAIN L, R mix
output. This EQ section affects the signals found in the
MAIN (XLR), headphone, line-level, and speaker-level jacks
(when confi gured to MAIN L, R). The 7 slide controls each
represent a frequency band: 125, 250, 500, 1K, 2K, 4K,
and 8K. Each of the slide controls adjusts the audio level of
its particular frequency with up to a 12dB boost or cut. If
left in the center position, there will be no change to audio
level the frequency. It is important to remember that EQ
controls are meant to provide precise adjustments to an
audio signal, and not overly infl ate a signal resulting in an
unnatural sound. Human hearing can adapt quite quickly to
a particular sound signature, so it is best to fi nd a suitable
setting and leave it there until a change in the source audio
or environment requires a change in the EQ.
– These stereo LEDs display the
output level of the MAIN L, R mix. The LEDs are marked
from –10dB to +6dB. It is important to monitor these LEDs
as they can prevent a distorted audio signal and possible
damage to your speakers. An optimal signal will be mostly
contained to the green LEDs (up to 0dB), with occasional
peaks into the fi rst red LED (+3dB). If the mix reaches
+6dB, it is strongly advisable to reduce the MAIN L, R
– This control adjusts the signal level
of the MAIN L, R mix to be sent to the line-level outputs,
MAIN L, R LEDs, headphone and speaker-level outputs. This
control provides a one-touch adjustment to the MAIN L, R
mix, especially useful when the power amp assign is set to
MAIN L, R output. When the MAIN L, R LEDs enter the
+6dB range, use this control to make a quick adjustment.
When the power amp assign is set to MAIN L, R+MONITOR,
this control will only affect the mix sent to the MAIN (XLR),
AUX and (L) speaker-level output.
– This control adjusts the
amount of DSP effects that is applied to the MAIN L, R mix.
This control is ideal for making quick on-the-fl y adjustments
to the DSP effects level on the MAIN L, R mix which is
routed to the line-level outputs and speaker-level outputs.
When confi guring your DSP effects, this control is used
after the MASTER EFFECT LEVEL control in the DSP controls
panel. Note that when the power amp assign is set to MAIN
L, R+MONITOR, this control will not adjust the DSP effects
