Hello everyone, I am a new member of the forum, but a long time subscriber of Stereophile, and an avid forum parouser. Now I'm at a point where guidance would be much appreciated.

So, I have 200 square foot room with 10 foot vaulted ceilings. I have laminate floors, and am planning on putting down an area rug. I am needing input/advice on acoustic treatment.

I have Bryston Mini T (large bookshelfs) and run 2 DIY reference subwoofers. The Bryston's are about a foot from the wall (don't have room to move them out further). I'm wondering about Diffusion and Absorption. I have read many varying opinions, and realize that specific setup is a large dictator of proper treatment.

What should I put behind the speakers (front wall), on the back wall, and should the sidewalls be treated. I am a Sculptor, so making these devices is not an issue... But guidance on specific designs/sizes/etc... is. As is where to use diffusers and/or absorbers.

Thank you very much for your time and responses in advance!