Studio monitors here as well; Focal Alpha 65's. I run the Axe III's L and R Output 1 into an Audient ID14 interface to the monitors.
Interesting that you concluded that most people are using a separate audio interface. I don’t see the evidence for that in this thread or elsewhere.Interesting that mostly people use the fm3 with an additional audio interface rather than just the fm3 as an audio interface. Is rhe quality and sound/capabilities of the fm3 as a dedicated audio interface lacking?