On the noise issue, proper gain structure between the mixer and IEM is a must. Run the level into the transmitter to drive the transmitter upwards to 80% or so. The volume on the receiver packs will be lower, all told that increases the signal to noise ratio.
An extra benefit in running the IEMS that way is if there is a loud signal spike or a blast of noise from dropout or interference running the volume lower on the receiver pack will reduce that volume that hits your ears.
If you run the level low at the transmitter and then turn up the volume on the receiver pack that brings up any noise in the system and loud spikes or other noise will be really loud hitting your ears.
I've posted this before.....do NOT buy the Behringer wireless IEM systems, they check all the boxes of total crap. Galaxy Audio was mentioned above, yea I never found their wireless stuff to be that great either.
An extra benefit in running the IEMS that way is if there is a loud signal spike or a blast of noise from dropout or interference running the volume lower on the receiver pack will reduce that volume that hits your ears.
If you run the level low at the transmitter and then turn up the volume on the receiver pack that brings up any noise in the system and loud spikes or other noise will be really loud hitting your ears.
I've posted this before.....do NOT buy the Behringer wireless IEM systems, they check all the boxes of total crap. Galaxy Audio was mentioned above, yea I never found their wireless stuff to be that great either.