I generally had a seat more or less in front of the stage for all the acts I saw and the sound ranged from fair to quite good; not really bad nor really good either. Fairport sounded best to me though that may be down to their own sound man.

The rooms were equipped with physically large speakers which may have been old, I don't know. On a much smaller scale it is clear that artists and bands with systems such as the Bose L1 generally have an impressive sound. Could the problems of 'good sound' throughout a large room be addressed by a scaled up version of this system using lots of small speakers rather than a few large ones?