lonemountain
In extremely reflective envrons there seems to be only two solutions, both mentioned here. 1) dampen the hell out of it (heavy curtains like theater curtains- very expensive) , 2) distributed low level nearfield playback
There is an another option. Get Wavetouch audio speakers. Unlike other speakers (more 1st reflection points on walls, floor, and ceiling), walls and a floor influence much less to WT speakers’ sounds.
One must find used WT speakers. I have no time for WT speakers for a long time. Alex/WTA