whichever you set in the audio program, in this case GarageBand. it should default to Out 1. but you can change what the audio program listens to in its settings. not sure what options GarageBand offers, so you'll probably be using Out 1.
there's no options in GarageBand preferences? usually you have to choose the Input and Output in any DAW.Hmm, not seeing that in GarageBand.
there's no options in GarageBand preferences? usually you have to choose the Input and Output in any DAW.
I can choose the Axe as an input but can’t specify Output 1 or Output 2 from the Axe.
When you create the track, you'll get a prompt for the kind of track you want. That dialog also will give you options on which input channels of your preferred input device you want to use (including whether you want mono or stereo). Pick the channel(s) for which ever AxeFX output you want to use. You set your preferred input device in Preferences->Audio.