User Manual

Allen & Heath  16  WZ
4 
16:2 and 12:2 User Guide 
AUX SENDS      These  rotary  controls  adjust  how much channel  signal  is 
mixed to the aux outputs.  Each of the 6 auxes has its own control.  They 
adjust from fully off to +6dB boost.  Unity gain 0dB is marked at 3 o’clock 
position.   Factory  default settings  should  satisfy  the most  common applica-
tions: 
  AUX1, AUX2  =  Pre-fade 
  AUX3, AUX4  =  Switched pre/post using PRE switch 
  AUX5, AUX6  =  Post-fade 
  Pre-fade aux options:  Pre-INSERT, pre-EQ, post-MUTE 
These settings may be changed if preferred by repositioning internal jumper 
link / solder link options. They offer many different combinations of pre and 
post-fade  sends,  and  a  post-EQ  option  for  the  pre-fade  sends.    The  PRE 
switch  can  be assigned  to  one,  two or more  of the sends.    More detail is 
provided in OPTIONS later in this guide. 
Pre-fade aux sends are not affected by the channel fader movements.  These 
are  typically  used  to  feed stage  monitors.    In most cases users also prefer 
that the monitor sends are not affected by inserted processors or the chan-
nel EQ. Post-fade aux sends follow the channel faders and are typically used 
to send a proportion of the channel signal to an effects device such as reverb 
or delay.   Pre  or post-fade sends may also be  used for  special applications 
such as recording, zone feeds, clean feeds and aux fed subs. 
PRE      When  pressed  the  pre-fade channel  signal is  sent  to  the associated 
auxes. When released the post-fade signal is sent.  Auxes 3 and 4 are affect-
ed by the PRE switch (factory default). You can change this to dedicated pre
-fade using the internal options. 
PAN  Positions the channel signal between L and R in the stereo mix. The 
centre position (mono image) is detented for quick resetting. 
MUTE When pressed the channel signal is turned off. This affects the feed 
to the LR mix, pre and post-fade aux sends and direct output, but does not 
affect the insert send. The red indicator lights when the channel is muted. 
PFL Press PFL to listen to the pre-fade channel signal in the headphones or 
AB monitor (if configured) without affecting the main outputs.  The console 
main LR meters are interrupted with the channel signal.  The red PK indica-
tor half lights to show that PFL has been selected on that channel. Selecting 
more  than  one  PFL  at  the  same  time  mixes  those  signals  together  in  the 
monitor. 
PEAK      The  red  indicator  illuminates  when  the  channel  pre-fade  signal  is 
within 5dB of clipping.  This gives you enough warning to reduce the GAIN 
control before you hear signal distortion. 
SIGNAL  The green signal presence indicator lights when the channel pre-
fade signal is greater than -12dBu. 
FADER  Controls the channel level feeding the main LR mix and post-fade 
aux sends.  It also affects the direct output if this has been set to post-fade 
using the internal option jumper. The fader provides +10dB maximum boost 
above its normal unity gain 0dB position. 
Important note on setting channel levels:   Use PFL to set the GAIN 
controls  for  correct  signal  level  through  each  channel.    Use  the  faders  to 
balance each signal in the mix.  These are typically operated around their -20 
to 0  positions according  to  the  mix.    We do  not  recommend   setting  the 
faders to ‘0’ and mixing using the GAIN controls. 
180
45
35Hz
70
400
1k
250
(LINE)
3k
700
500Hz
1k
6k
15k
4k
HPF
+48V
PAD
SIG
10
5
0
5
10
30
20
+6
+6
+6
+6
1
AUX
2
AUX
3
4
AUX
AUX
PRE
+6
+6
RL
PFL
MUTE
5
AUX
AUX
6
PAN
PK!
POST
POST
10- 10
GAIN
20
0
4060
50
40
30
HF
HM
LM
LF
EQ IN
OO
OO
OO
OO
OO
OO
OO










