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Front & Rear Panels
MG16/4, MG12/4
22
1 Channel Input jacks
• MIC jacks (MG16/4: CHs 1 to 8, 9/10, 11/12. MG12/4:
CHs 1 to 4, 5/6, 7/8)
These are balanced XLR-type microphone input jacks
(1:Ground; 2:Hot; 3:Cold).
• LINE jacks (MG16/4: CHs 1 to 8. MG12/4: CHs 1 to 4)
These are balanced TRS phone-type line input jacks (T: Hot;
R: Cold; S: Ground).
You can connect either balanced or unbalanced phone plugs
to these jacks.
Where an input channel provides both a MIC INPUT
jack and a LINE INPUT jack, you may use either
one of these jacks but you may not use both at the
same time. Please connect to only one of these
jacks on each channel.
2 INSERT I/O Jacks
Each of these jacks is positioned between the equalizer and
fader of the corresponding input channel (MG16/4: CHs 1 to 8;
MG12/4: CHs 1 to 4). These jacks can be used to indepen-
dently connect these channels to devices such as graphic equal-
izers, compressors, and noise filters. These are TRS (tip, ring,
sleeve) phone jacks that support bidirectional operation.
Connection to an INSERT I/O jack requires a spe-
cial separately-sold insertion cable such as illus-
trated below.
The signal output from the INSERT I/O jacks is
reverse-phased. This will not be a problem if con-
necting the jack to an effector. If using the jack to out-
put to an external device, however, please be aware
of possible phase conflicts with other signals.
3 Channel Input jacks
These are unbalanced stereo line input jacks. Two jack types
are provided: phone type (MG16/4: CHs 9/10 to 15/16;
MG12/4: CHs 5/6 to 11/12) and RCA pin type (MG16/4: CHs
13/14, 15/16; MG12/4: CHs 9/10, 11/12).
Where a channel provides both a phone jack and an
RCA pin jack, you may use either one of these jacks
but you may not use both at the same time. Please
connect to only of these jacks on each channel.
4 GROUP OUT (1, 2) Jacks
These are impedance-balanced phone-type output jacks that
output the Group 1-2 signals. Use these jacks to connect to the
input jacks of an MTR, external mixer, or other such device.
5 ST OUT (L, R) Jacks
These jacks deliver stereo output of the mixed signal. You use
these jacks, for example, to connect to the power amplifier
driving your main speakers. You also use these jacks when you
wish to record the signal utilizing the level control applied by
the ST fader in the Master Control section.
• XLR jacks
XLR-type balanced output jacks.
• Line jacks
TRS phone-type balanced output jacks.
6 C-R OUT Jacks
Use these stereo phone-type output jacks to connect to your
monitor system.
The signal monitored by these jacks is selected by
the settings of the ST-GROUP toggle switch, the
2TR IN switch, and the PFL switches on the input
channels.
7 SEND Jacks
• AUX1, AUX2
These are impedance balanced phone-type output jacks.
These jacks output the signals from the AUX1 and AUX2,
respectively. Use these jacks to output these signals to an
effector or a cue box or other such monitor system.
Rear Input/Output Section
4 15
6 37 8
AB
9 0 2
NOTE
NOTE
To the INSERT I/O jack
To the input jack of the external processor
To the output jack of the external processor
Ring
Sleeve
Tip
Sleeve
Tip
NOTE
NOTE
MG12-16_E.book Page 22 Monday, May 26, 2003 1:14 PM