I recently tried out a combination that I have been planning. In my smallish 14' x 12' room, I replaced GIK 244 absorption panels at the first reflection point on the sidewalls with their new evolution Polyfusor diffuser panel which acts as a bass trap upto 80hz and a diffuser from 600hz on. I felt that the soundstage widened more beyond the speaker location - imaging sharpness remained more or less the same - and I hear more resolution in the stage and more airy treble especially on cymbal strikes and better overall decay. I am liking this now and will keep the current configuration. There is a lot of debate on having diffusion at first reflection points on the side walls, with a lot of recommendations for broadband absorption at this point, but I think this type of a hybrid absorption/diffusion panel might be better.
Overall now my room has a mixture of broadband absorption in the corners, diffusion/absorption at first reflection on sidewalls and wall behind speakers and QRD diffusers at the ceiling reflection point and I feel it is sounding excellent. I am mostly using GIK panels except the wall behind the speakers where I am using 4 vicoustic wavewood panels.
Cheers,
Sid
Overall now my room has a mixture of broadband absorption in the corners, diffusion/absorption at first reflection on sidewalls and wall behind speakers and QRD diffusers at the ceiling reflection point and I feel it is sounding excellent. I am mostly using GIK panels except the wall behind the speakers where I am using 4 vicoustic wavewood panels.
Cheers,
Sid
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