Just read that channels 4/5 would be ok for a mixer. !
If that's the case then I would plug the ipad (currently in 4/5 ) into the mixing desk and 3 mics to 1'2'3'.
Would that work ?
Thanks
Eddie
Yes that should work OK. I would however pan the instruments to one side (left or right, it doesn't matter) and then take a cable from the main out on the side that you have panned to and connect this to 4/5. You would then need to select a neutral preset for that channel. I would try UTILITY FLAT for this purpose.
Don't forget to set the trim on channel 4/5 of the T1 when using an external mixer to make sure that you have enough signal to work with.
If you can have a trial run beforehand all the better.