Allen&Heath MixWizard3 12-2 - Manual (Page 13)

WZ 3 16:2 and 12:2 User Guide 13
The Console Connectors
MIC / LINE IN The channel PAD (LINE) switch selects either the MIC
XLR or the LINE TRS jack as the input source. The XLR is normalled
through the TRS jack. This means that the XLR can be used for
microphone or line level signals when nothing is plugged into the jack
socket. Both inputs are balanced but can be wired to work with
unbalanced signals when required.
WARNING: Do not connect unbalanced sources or cables to
the XLR input when 48V phantom power is selected. To avoid loud
clicks always turn the channel off by pressing MUTE when switching
+48V on or off, and when plugging or unplugging cables.
STEREO LINE IN The WZ 3 12:2 has six stereo inputs comprising four
channel inputs ST1,3 (unbalanced) and ST2,4 (balanced), and an
additional two stereo returns ST5 (balanced) and ST6 (unbalanced). The
WZ
3 16:2 has two stereo return inputs ST1 (balanced) and ST2
(unbalanced). All inputs use TRS jacks. Unbalanced inputs automatically
connect the TRS ring to ground for working with balanced sources. The L
input is normalled through the R input to accept mono signals.
Note that the ST5 (WZ 3 12:2) or ST1 (WZ 3 16:2) stereo return input mixes
with the internal effects processor return. This means that an external
effects device fed from a different aux mix can mix with the internal
processor to save input channels. Alternatively, you could turn the internal
unit off and use the ST5 (ST1) input with an external unit only if preferred.
INSERT A single 3-pole TRS jack carries the unbalanced insert signal.
Tip = send, Ring = return, Sleeve = common ground. The channel insert
is post-HPF, pre-EQ and operates at 0dBu. The LR mix insert is pre-fader
and operates at -2dBu. These should work fine with line level signal
processing equipment such as compressors, outboard EQ, delay units and
so on. An example of a suitable cable is shown here:
DIRECT OUTPUT The mic/line channel direct output is available on
an impedance balanced TRS jack. It is a line level signal operating at
0dBu. The source is set using an internal option jumper for each channel.
The factory default setting is pre-fade (following the pre/post-EQ setting).
This may be changed to post-fade if preferred.
The direct outputs provide a useful source for multitrack recording. Many
users prefer pre-fade sends for this application so that the live show fader
movements do not affect the recording which can be mixed later. Another
application is channel effects sends. For example, a reverb unit may be
dedicated to work with the lead vocalist channel only. Using a post-fade
direct output instead of an aux send frees up that aux mix for other
purposes.
- IN
+IN
3
INPUT
2 1
RING -IN RING
TIP +IN TIP
LINE
MIC
SINGLE
INTERNAL
AUX5
AUX6
EXTERNAL
-
R
EFFECT
EFFECT
DUAL
1-16
EFFECT
1-8
9-16
L/M
ST5
-
+
+
L
R
MIX
INSERT
RETURN
SEND
RING
TIP