A contradiction surely - an acoustic night with a PA System?.
There is one local to me , I don't like it and never go now. The chosen few get a good mix from the (very amateur) soundman , and strangely all others struggle including far far better performers than I am.
Whilst performing this R Sole tinkers with the sound , feed back and whistling - all this in a room which is too small to require a PA in the first place .
I can understand a Pro. using a small PA for the sake of consistency in constantly changing venues, but for gatherings of the same people ,in the same small room on a regular basis .
I prefer the other Folk Clubs near me where people sing and play "live" or as some would say "acoustically" .