Have several times been so fed up with what the PA guy thinks my guitar should sound like,I have moved off the performance area to the front of the audience and annoyed them from there.
The PA can be great but is more often a pain.
Sound enhancement is what makes the music louder but does not alter it in any other way.
And as for the PA jockey who cant leave the bloody gain alone and turns you up for the quiet bitsss.
Grrrrrr