there is no mic preamp. they are line level XLR inputs.Congrats Cliff and company!
Does the III have a built in mic preamp on one of the inputs for vocoder type stuff and for those who want to add effects to a mic-ed talk-box?
here's what Matt had to say:
This is because they are line level inputs, not mic inputs.
Two awesome options for between a mic and Axe-Fx III are the Summit Audio TBA-221 and the FMR-RNP. A nice inexpensive choice is the Rolls MP13. With one or two of these, you could sell the interface.