Hi Kevin, Thank you for browsing through my system. Yes, in front I built the frame filled with 4" fiberglass insulation panels and moved 8" away from the front wall. On the side walls beside the speakers I have the same 4" absorption panels built-in and at first sound reflection points I installed the sound diffusion panels - using a different thickness woodsticks (3/4-1.5") and tilted plywood panels. On a back wall and on ceiling I used the RPG self-made panels. Also since my room in the basement I installed a double ceiling with inside sheet-rock layer mounted on the rubber pads. In re acoustical measurement, I have done numerous tests with my audiophile friends. The results were very impressive. The graph was practically flat. Room sounds awesome! Though with such big speakers I am thinking to remove absorption and leave more space behind the speakers. It will substantially increase a depth of the stage. Cheers, Andrew
Hi Bill, sorry for delay in response. Actually my RPGs are custom made (by myself). I glued each panel to the MDF panel and screwed to the vertical frame which mounted on rail over the screen. So I can move a side the frame with RPGs when watch movies. Cheers, Andrew
First I've noticed fuzzy focus. Especially on vocal parts. I tried different type of material - absorbtion panels, diffusion louvres. Not good... With RPG I think I hit the target. Perfect focus and stage. Also a hight and not more than one panel width matters a lot as well. Covering a whole screnn made it worse. Cheers!
