Yamaha MGP12X to T1 ToneMatch Audio Engine
How To
Connect the output of the Yamaha MGP12X to T1 ToneMatch Audio Engine
Use XLR to 1/4" (6.3mm) Tip-Ring-Sleeve Jack cables.
If you are connecting a computer to the Yamaha MGP12X consider using the USB interface.
Additional Information
T1 ToneMatch® Audio Engine / Gain Staging
[Yamaha MGP12X Owner's Manual]