I am trying to use my iPhone to play backing tracks in to my QC (for practice at home, not for live performance)
In order to do this I am using a Lightning to USB OTG cable.
When this is connected I can hear the iPhone audio through the headphone out on the QC, or if I plug in to my FRFR using Out 1/2 (XLR) I can also hear the iPhone audio.
However I usually connect my QC to my FRFR using standard TS cables (the FRFR is a Powercab so has 2-way XLR / TS inout jacks)
When I do this however I get no iPhone sound from the QC.
As far as I know it is not possible to get the USB audio via the Out 3/4 - I would like to see this feature added, and it seems like a simple firmware fix…