I’m sorry I cannot help you but you may help me. I am using the UR22 with Garage Band on my Mac and I don’t know how to put the settings in order to play guitar using the first input jack channel and sing via XLR using the second input at the same time. I suppose I have to create two mono tracks.This should be possible but how? Garageband does not react / see the second inpult signal. Thank you in advance! Andrea