In the user manual it says to select "amp" when you are plugging the xt live into "the front of your amp" or otherwise select "line". Does this mean that if I am plugging into the Power Amp / Effects Return part of my amp I should select "line"? Thanks in advance!
Well I just found an answer that said it depends on the type of amp you are using so here you go:
Crate GFX120 plugged into the "Insert" (power amp IN)
Crate Power Block plugged into "Effects Return"