When I built my home theater several years ago, I went way overboard with diffusion and absorption. Probably at least 50% of the wall had custom deep well quadratic diffusers. Including behind the now ATS screen. The theater currently sounds very spacious and much larger than it is and I don't want to ruin that. I am in the process of redoing everything and want to know the best practices for treatment behind the ATS screen. It currently has a 100" x 48" difusser plus mixed in absorption. I had filled in most of the wells with absorption when I put in the ATS screen. Typical on line information is for full insulation behind the screen, but I don't want to over absorb the room. Is diffusion behind the screen bad?