Yamaha MG Series Owner's Manual page 21

 Stereo input channels
MG16XU/MG16X/MG16 : CH13/14,15/16
MG12XU/MG12X/MG12 : CH9/10,11/12
MG16XU
MG16X/MG16 : CH13/14,15/16
MG12XU
MG12X/MG12 : CH9/10,11/12
HA
L [-10dBu]
HA
USB-PLAY-L
R [-10dBu] USB-PLAY-R
MG16XU : CH15/16
MG12XU : CH11/12
(*) Only MG16XU, MG16X and MG16
: CH13/14
: CH9/10
ON
EQ
EQ
MG16XU/MG16X/MG16 :
3-Stage
MG12XU/MG12X/MG12 :
2-Stage
LINE/USB
(ST CH Fader) BAL
MG12XU/MG12X/MG12
PRE
MG16XU/MG16X/MG16
MG12XU/MG12X/MG12
PRE
MG16XU/MG16X/MG16
MG20XU/MG20/MG16XU/MG16X/MG16/MG12XU/MG12X/MG12 Owner's Manual
Controls and Connectors
1-2
3-4 (*)
ST
AUX1
AUX1PRE
AUX2/FX, AUX2
AUX2
AUX3 (*)
AUX4/FX, AUX4 (*)
PFL
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