This reminds me of ... one of my pet peeves..

After playing amplified keyboards for more than 60 years....
KEYBOARD sound should come from the ground

Nothing sounds more un-natural then keyboard up on a pole..

Personally, I have never used speakers on poles...I don't like that karaoke sound...and that is what you get..

There is always a way to set up ground sound systems to work on local gigs..
Tilt back, reversed to a wall, directional, stacked...etc

Does anybody like hearing a Leslie on poles

I want to duplicate a stage...guitar has an amp...Drums are smack on the ground as are keys... bass player is next to the drummer..

This gives more definition .. and not the radio blend we sometimes get use to with poles..

All this for the sake of a singer
Maybe a singer should learn how to do sound for his/her benefit .. hanging up 10 feet on each side of the stage....really doesn't sound real