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Rear Panel 17
GA32/12, GA24/12—Owner’s Manual
E INPUT jacks 13–16
These are unbalanced phone jacks for the stereo
input channels, with nominal input levels ranging
from –34 dB to +10 dB. If you are using the stereo
input modules as monaural channels, connect a
plug to 13L (MONO) or 15L (MONO) jack. See
the figure on the right for wiring.
F MIX OUT 1–10 jacks
These balanced XLR-3-32 jacks output MIX
bus 1–10 signals individually, with a nominal
output level of +4 dB. See the figure on the
right for wiring.
G MIX INSERT I/O jacks
These TRS phone jacks are used to insert an external processor into MIX buses 1–4, with
nominal input/output levels of 0 dB. See the figure below for wiring.
H AUX RETURN 1–4 jacks
These unbalanced phone jacks are used to connect
stereo outputs from an external effect processor,
with nominal input level of +4 dB. To input
monaural signals, use only the L (MONO) jack.
See the figure on the right for wiring.
I ST1 OUT jacks
These balanced XLR-3-32 jacks output ST bus
signals, with a nominal output level of +4 dB.
See the figure on the right for wiring.
J ST2 OUT jacks
These unbalanced phone jacks output ST bus
signals, with a nominal output level of +4 dB. See
the figure on the right for wiring.
K MATRIX OUT jacks 1/2
These unbalanced phone jacks output Matrix 1/2
signals that are a mix of MIX buses 1–4 and ST bus,
with a nominal output level of +4 dB. See the
figure on the right for wiring.
1/4" phone plug
Tip (send)
Sleeve (ground)
Male XLR plug
1 (ground)
3 (cold)
2 (hot)
1/4" phone plug
1/4" phone plug
1/4" TRS phone plug
To processor’s input
From processor’s output
Connect to INSERT I/O jack
Tip (send)
Tip (send)
Ring (return)
Sleeve (ground)
Sleeve (ground)
Tip (return)
Sleeve (ground)
1/4" phone plug
Tip (send)
Sleeve (ground)
Male XLR plug
1 (ground)
3 (cold)
2 (hot)
1/4" phone plug
Tip (send)
Sleeve (ground)
1/4" phone plug
Tip (send)
Sleeve (ground)