I have just moved to a new location for my folk club.
The very first evening was a week ago. There was no PA and I was concerned incase people at the back might not be able to hear.
To my amazement, I didn't need to worry. It must be one of the best accoustic venues going.
I sat at the back so that I could test the sound. It was perfect, I could even hear the artist talking with clarity.

I would like to say that I have been at gigs to see Queen, Status Quo etc. Enjoyed them very much including the volume. Have even been ten feet away from Peter Greens Speaker when he played with John Mayall. It was great and has its place.

However, I enjoy very much the accoustic side of things and find that I listen intensly to the music and really enjoy it.

There is a place for both, but loud PA at my club will not happen. With a good audience who want to listen, it isn't necessary - as is the case at my club.