[quote name='chris_b' timestamp='1475921229' post='3149743']
That's not an answer.
You can always hear the PA, even from behind it. When you're using IEM's you're shut off from all of the FOH so how do you maintain a balance out front through out the gig?
I'm asking the question because maybe the guys using IEM's have solved what to me seems like a show stopper, unless you have a sound man. I've not been in many bands that were able to maintain a balance using backline, but you can hear when the band and volume is going out of balance, but how do you address this with no backline and when you're cut off from the PA using IEM's.
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You need to get into a different mind set with it, the sound check can be done by whoever in the band does it with them out front until the mix is perfect, then that's it, no fiddling! If you have a guitarist with a Marshall stack that turns up mid gig and pushes the whole volume up by the second set they need educating regardless of iem or not. If you WANT the second set a bit louder overall there's a volume slider for that.
If said guitarist wants to deafen himself that's fine he has an individual volume control to his in ears,as long as he leaves his amp volume alone the front of house will be balanced.
If you are running an ampless band all wireless you are almost in a situation of purely adjusting the volume from gig to gig and remove the need for a sound check, there's a reason pro function bands that need a good mix without a two hour sound check and without a live engineer are going in ears.
Nearly forgot, you are not shut off from it at all, you could if you wish have THE ACTUAL foh mix in your in ears, that's the exact opposite of being shut off from the foh! You can also run open ambient mics because you don't have any monitors on stage creating the dreaded feedback, digital mixer, mic out towards the rear of the room and you could even set that up as a saved mix just to the sound persons ears and listen in mid song!