10 Master Section
GA32/12, GA24/12—Owner’s Manual
AUX RETURN section
The GA32/12 and GA24/12 provide four stereo AUX returns. Use the paired AUX RETURN
1–4 L/R jacks (see page 17, rear panel 8) to input stereo signals. Alternatively, c onnect signals
only to the AUX RETURN 1–4’s L jack to use the routing as a monaural AUX return.
AM1–M4 mix level controls
These controls are used to route signals input
from the AUX RETURN 1–2 jacks to MIX buses
1–4. The L channel of a stereo input signal is
sent to MIX buses 1 and 3, and the R channel
signal is sent to MIX buses 2 and 4. For a
monaural signal input, the same signal is sent to
MIX buses 1–4.
BM5–M10 mix level controls
These controls route the input channel signals
at the AUX RETURN 3–4 jacks to MIX buses
5–10. The L channel of a stereo input signal is
sent to MIX buses 5, 7, and 9, and the R channel
signal is sent to MIX buses 6, 8, and 10.
CST (Stereo) level control
This control knob enables you to adjust the level of signals sent from the AUX RETURN 1–4
jacks to the ST bus, and does not affect the M1–M10 mix level control settings (1 and 2).
DON switch
This switch is used to turn on and off the corresponding AUX return. When you turn this
switch off, no signals are sent to the ST bus and MIX buses 1–10. However, using the PFL switch
5 enables you to monitor the signals via the C-R MONITOR OUT jacks or PHONES jack.
EPFL switch
When you turn this switch on, the AUX return signals will be routed to the PFL bus, and you
can monitor the signals via the C-R MONITOR OUT jacks or PHONES jack. The signals are
not affected by the M1–M10 mix level controls (1 and 2), ST level control (3), or ON
switch (4).
Note: The M1–M4 switch settings in the Variable/Fix select section do not affect the M1–
M10 mix level control settings. If the switches are set to FIX, signals that pass the M1–M10
mix level controls will still be sent to MIX buses 1–10.
AUX RETURN
100
M4
100
M3
100
M2
100
M1
ST
PFL
ON 1
100
M4
100
M3
100
M2
100
M1
ST
PFL
ON 2
100
M10
100
M9
100
M8
100
M7
100
M6
100
M5
ST
PFL
ON 3
100
100100100100
M10
100
M9
100
M8
100
M7
100
M6
100
M5
ST
PFL
ON 4
2
1
5
4
3