Man, I'm glad I found this place! I have a GT-Pro, and I want to use some stuff in the external Loops. The loops have parameters for send and return levels, but the manual doesn't mention how to set the parameters for different devices. Anybody have any experience with this? Thanks in advance!
Page 100 of the manual - Press the SYSTEM button - Use the PARAMETERS arrows to get to loop (LP) Send & Receive Levels - you can switch between -10dBu & +4 dBu.