« U » Shape kind of diffuser

@audiosens - So what have you gone on to use?
I just installed a pair of QRD17 diffusers behind slightly and towards between the speakers on the front wall, firing the ports into the deepest wells. Even my wife could hear a beautiful and significant presentation change.

I want to do more and I'd like to know what others are doing, including yourself.

Big sound improvement with Vicoustic VicTotem. I would highly recommend, even good for moderate size rooms.

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