User Guide
–
AP11137 iss.1
13
ALLEN
&
HEATH
6.5
The display
The display indicates the parameter being
controlled by the rotary
–
level, pan, bass,
treble, limiter threshold.
SIG lights to show audio signal activity:
Green = -40dB signal presence
Orange = +3dB normal level
Red = Peak 3dB before clipping
LIM lights when the limiter is active.
USB lights when a USB device is recognised.
6.6
Adjusting Master level
Turn to adjust output volume. Start with the
Master at minimum. Adjust sources for
optimum meter reading then turn up the
rotary for comfortable listening level. Typical
setting is around mid-position.
6.7
Working with Channels
Press a select key to work with a channel:
Level
–
Turn the rotary. The bar shows the
level from off to +10dB boost. The pointer
indicates 0dB level, typical setting for the
main source in your mix.
Pan
–
Press and turn the rotary to adjust the
balance between left and right. The pointer
indicates mid position.
Mute
–
Press the Mute key to toggle the
channel on or off (muted). The select keys
flash to show channels which are muted.
Solo
–
Press the Solo key to listen to just the
selected channel. The key flashes when solo
is active. Press and hold for more than 1
second for momentary action.
6.8
Working with the Master
Press the Master key to work with the output:
Mute
–
Press the Mute key to toggle the mix
output on or off.
Bass
–
Turn the rotary to boost or cut low
frequencies (BASS) by up to 15dB.
Treble
–
Press the rotary to toggle between
bass and treble. Boost or cut high
frequencies (TREB) by up to 15dB.
6.9
Setting the output limiter
The limiter can provide ear protection by
preventing the output volume exceeding a
maximum level set by the user.
Press Shift+Master to access the limiter:
Threshold
–
Set the output to the loudest
volume required and turn the rotary until the
LIM indicator starts to flash.
Warning
To avoid the risk of hearing
damage do not operate at high volumes for
an extended period of time.
6.10
Trimming all levels
Hold Shift and turn the Rotary to
simultaneously trim all levels up or down.
Use Trim All to reduce a hot mix if SIG flashes
red, to bring up a mix with low meter reading,
or to turn all levels off.
Note
The mix balance will change when the
source with highest level reaches maximum
or source with lowest level reaches minimum.
Use Trim All carefully to make small
adjustments if you want to keep the relative
balance between the sources.
Master Level
Normal
Off
Max !
Shift
Trim All
