Talkback, signal generator and matrix, Talkback, Signal generator / pink noise – Allen&Heath MixWizard WZ4 14-4-2 User Manual
Page 20: Matrix, Allen & heath 20 wz, 4:2 user guide
Allen & Heath
20
WZ
4
14:4:2 User Guide
TALKBACK, SIGNAL GENERATOR and MATRIX
TALKBACK
Individually assignable talkback is available to all the
main outputs. Plug in a suitable cable or gooseneck microphone. A
good quality dynamic or condenser vocal microphone is recommended.
Note that +48V phantom power is available at the XLR as standard. If
you prefer, this can be disabled by repositioning an internal jumper link.
WARNING: Do not connect unbalanced sources or ca-
bles to inputs with phantom power selected. To avoid loud
clicks do not press the TALK switch when plugging or unplug-
ging the talkback microphone.
First select the source you wish to talk to. You can select the auxes in
pairs, useful for communicating with the performers on stage. The four
groups are selected simultaneously, ideal for identifying a multitrack
recording. You can also talk to LR, ideal for announcements to the audi-
ence. Once selected, press TALK to route the mic to the required des-
tination. Adjust the talkback level using the TRIM control below the TB
mic XLR.
SIGNAL GENERATOR / PINK NOISE
Press to select
either pink noise (up position) or a 1kHz sine wave tone as the test
source. Start with the trim control turned fully down. The generator
ON switch is rece ssed to prevent accidental operation. Press this with
a pen or pointed object. The green indicator lights to warn that the
generator is enabled.
The generator signal is routed to any source selected on the switch
bank above the TALK switch. Use the signal to test the loudspeaker
system and line up connected equipment. Pink noise is useful for quickly
testing the full range frequency operation and phasing/polarity of loud-
speakers. The 1kHz tone is better suited to lining up equipment with its
steady reading on the meters.
WARNING: We recommend you turn off the signal
generator once you have finished using it to test and line up
your system. This will prevent accidental operation during the
show.
MATRIX
The matrix provides 2 additional console outputs. It is a
‘mixer within a mixer’ taking its source from the groups and main mix.
It can be used to provide duplicate main outputs or to create new mixes
from the main outputs. The controls are positioned conveniently away
from the live performance controls to avoid accidental operation.
Each of the 4 groups, L and R can be mixed independently into the ma-
trix. The source is derived post-fader. Adjust the level clockwise from
fully off to +6dB boost. Use the LEVEL control to adjust the matrix
output level from fully off to a maximum boost of +6dB. The ‘0dB’ posi-
tions are marked. The matrix output can be muted. The post-level
signal can be monitored using the AFL switch.
Use the matrix to create special mixes such as delay, fill and zone speak-
ers, recording and broadcast feeds, hearing assist loop and so on.
AFL
POWER
PFL
+10
+10
TB SELECT
PHONES
2TRK
R
TO LR
MIC
IN
2TRK/USB
MAX
MIN
MAX
L
MIN
ON
TALKBACK
TRIM
PINK NOISE
1kHz OSC
OSC/NOISE
TRIM
+9
+6
+3
0
-3
-12
-16
-30
-20
-9
-6
2TRK
L-R
L-R
GRP 1-4
AUX 1-2
AUX 3-4
AUX 5-6
PRESS TO TALK
MONITOR
+16
O
O
O
O
MATRIX
+6
GRP
GRP
+6
1
+6
+6
GRP
+6
GRP
4
+6
3
2
GRP
GRP
1
GRP
4
GRP
3
2
+6
+6
L
+6
R
+6
+6
+6
MUTE
+6
+6
MUTE
LEVEL
L
R
LEVEL
AFL
AFL
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O