Operation Manual

Allen & Heath 21 ZED-14, 18 & 24 User Guide
USB & MASTER SECTION
Alternate output level control
The Alt (Alternate) Output is useful for connecting a pair of moni-
tor speakers separate to the main outputs. The level control adjusts
the volume of the output from off to +6dB.
Headphone level control
Adjusts the level of the headphone signal.
Warning ! To avoid damage to your
hearing do not operate the headphones
or sound system at excessively high
volume. Continued exposure to high
volume sound can cause frequency
selective or wide range hearing loss.
82!
Alternate output selector switches
These under-panel switches select the signal source for the Alt out-
put. They select between the L R pre-fade, L R post-fade or the
monitor L R signals.
Aux 1 & 2 master level controls
For adjusting the level of the Aux 1 and 2 outputs. The range of
level control is from off to +6dB.
Master L R faders
High quality 100mm faders for the main L R outputs. 10dB gain at
the top, unity gain marked at “0”.
Monitor selector switches
These 4 switches select the signal source for the headphones moni-
tor and the meters. They work on a priority basis. If they are all up
then the post-fade main L R signals will feed the monitor circuit, if
USB and 2 TRK are pressed, then only the 2 TRK signals will feed
the monitor circuit. The stereo option of pressing both AUX 1 and
AUX 2 together allows Aux 1 to feed the left and Aux 2 to feed the
right monitor circuit. This is useful if a stereo mix is set up using
Auxes 1 & 2.
OO
30
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
OO +6
ALT
OUT
MONITOR
LR
OO +6
AUX1
MASTER
OO +6
AUX2
MASTER
5
20
10
5
0
10
POST
PRE
LR
48V
RL
0
0
0
PHANTOM POWER
ALLEN HEATH
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
&