I plan to experiment by placing 2 pieces of 2" thick absorption wedge panels on the ceiling. I would be grateful if anyone could advise beforehand on the recommended arrangement of the panels. This is what I have in mind :-
Arrangement SketchIf some diffusion is required at later stage, I will add thin long strips of wood in between the wedge as proposed by Ethan Winer.
Any advice would be most appreciated.