We all know that the room is important for listening experience.
Have a look at Jay from Jays audiolab, the reviewer of some of the better high end equipment on his youtube-channel, listening to music sitting in a TigerFox diffusor set up.
Q: Have anyone made a circular diffusor listening solution in a more full sized version? (like wife friendly designed space for a 3-person sofa and walk paths) All room treatment are usually just fitted on the wall or in corners.
I don’t believe it will work in a larger room. The circular walls need to be in close proximity to your ears, and the speakers have to fire directly into the opening. This is just a nifty trick, but not practical at all.
Thirty years ago I worked for a few months at an architecture firm where the drafting room was a large, circular space bound by windows. It was probably twice the diameter of the Fuller building in the photo. The center of that room was a miserable place to be. All kinds of zingy, zippy and unwanted sounds. It was slap echo on steroids.