johnnycamp5 Messages: 354 Registered: June 2015 Location: NJ
Grand Master
I don't think so.
The choir section I described was completely empty, except for a few folding metal chairs.
Even in most home settings, there is usually some type of sofa or coach for sitting, and often padding and carpet on the floors, also window drapes or curtains.
All these things can act as broadband absorbers.
Yes if the floors are bare I do think that a panel absorber or two on the ceiling can really help.