Halcyonics under my tt. Wow

Nowhere near the magnitude of the Halcyonic even using the best treatments I have found, the Acoustic Revive QR-8s. But I agree that room treatments, if not overdone, which is all too common, can improve your imaging. I also don't know about doing so cheaply either.

Tvad, you are correct in seeing no diffusers (professional or otherwise), tube traps, defectors, Room Lens, Helmhost resonators, or absorbing foam for a LEDE room. They have all come and gone as did digital equalization. One pair of the Hallographs remain behind me. The other fought with my H-Cat Wave Timing Control and is now in the closet. I have also used the Shun Muck Mpingo disks, Combac and Marigold wall treatments, and the quite effective Acoustic Revive QR-8s which though tiny nevertheless have mighty impact. You are also right that these all cost far less than the Halcyonics. I have heard Rive designed rooms and frankly would have none here even were they not so costly.

But your real argument is that I have failed to focus on what has the biggest effect. I would say that the Halcyonics is far more important than any of the above in their impact on my sound. I should again note that my rave is about the impact of the third Halcyonics that I recently got. I thought highly of the contributions of the first and second also, but this one is just breathtaking. My room may be quite good not by design but by luck. It was designed to be a game room.

Nor I you, but at least now you don't think I am blithely ignoring room interactions. I think also that you grossly underestimate the Halcyonics for whatever reason.