User Manual

Allen & Heath 24 ZED-4 BUS User Guide
L R & M MASTERS and HEADPHONES
Warning ! To avoid
damage to your hearing do
n o t o p e r a t e t h e
headphones or sound
system at excessively high
volume. Continued
exposure to high volume
sound can cause frequency
selective or wide range
hearing loss.
!
MIN MAX
M
LR
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
MUTE MUTE MUTE
L R M
LEVEL
PHONES
L R M
1
Main Mix Fader
The L, R & M faders follow the mix insert points. The
faders have 100mm of travel and 10dB of gain at the
top.
2
Main Mix Mute
Cuts the signal from the main mix output. Illuminates
red when cut. Also cuts the signal from the associated
Matrix feed and the headphones monitor.
3
Main Mix Meter
A 4 LED bar meter to show the level of signal on the
associated output.
The thresholds are:
Sig = -18dB nominal, 0dB, +6dB, Pk=+16dB.
0dB on the meter = +4dBu at the balanced output.
4
Headphones Source & Level
The LR/M switch selects the signal source for the head-
phones, out for Left & Right, in for Mono. If any AFL or
PFL switch is pressed then this will override the source
selection.
The level control adjusts the volume of the headphone
signal.
1
2
3
4