I have no intention of placing my center channel speaker or any other ones behind the screen. However, I have noticed that when my unperforated screen is lowered, it is like a veil has been added to the sound. I'm considering having a wooden frame built that is about 4 inches deep and stuffing it with acoustical absorbing material and then mounting a perforated screen over that. Is this a good idea? Will the peforated screen allow the sound to pass throught and thus serve as an acoutical treatment? My center channel will be under the screen. I plan to use a 58 by 104 inch screen from Da-lite, audiovision.