ST3 allows to redirect multitrack to headphone output or USB, this is great to have 4 real outputs. My use case is to have stereo backing tracks on USB and mono click on headphone L output.
Now I'm considering to switch to a newer iPad but latest version have no headphone output anymore. In this case is this feature still possible?
No, this feature does not work with new iPads. It's really a shame that Apple decided to get rid of the headphone socket.
oh, too bad, means the routing cannot be used anymore on latest iPad?
or is an alternative hardware option available to have 3 (or more, you apps allows 12 mono out!) separate outputs?
Well, you can use an audio interface with multiple outputs. The app in version 3.6 can use 4 stereo outputs. So any iOS compatible interface with 4 stereo outputs will work.
right, simple 🙂