Allen & Heath ZED-420 Manuale Utente
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
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.
volume.
Continued
exposure to high volume
sound can cause frequency
selective or wide range
hearing loss.
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.
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.
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.
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.
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