Very good example...
Small room acoustic is very complex because of the control negatively or positively of reverberation time and the wave direct and reflected ratio...In my case also the control of the zone pressure distribution i modified and in my case i used a grid of Helmholtz resonators..
I take one year full time in experiments each day... Reading acoustic article to extract some idea for a new or better experiment... it cost me the price of the garbage in my basement...
But learning how to listen is a full time job...Nothing was more fun though...No upgrade can be so fun and astonishing...
But i will never do it again because i learned already how to do it , but it will not spare me the listening time... Passive material treatment is relatively easy... But mechanical control not so much...
Now i am happy with my TOP headphone, probably one of the most complex ever designed ( there is very complex headphone design nowadays)... I asked a Kennerton guy few months ago about hybrid headphone in their future design planification research... He said to me they abandonned the idea because it is too costly to do it right and too complex to do it well at the first shot , and margin of profit too slim ... Then i own the only successful hybrid headphone ...I will die with it...The soundfield is speaker like and recording dependant...
It’s absolutely critical to try things and find out what works for you. But it means you have to try stuff. Sometimes the resulting configuration ends up looking funny and being totally unconventional. But if the months go by and you remain happy with it, that’s what matters
My latest funny looking setup involves angled gobos placed at the first reflection points on the side walls and then more gobos behind me to either side. Here at work I had learned about absorbing first reflections on sidewalls, but then replacing them with delayed reflections by bouncing sound off the back wall toward the first reflection points. A panel or TubeTrap that absorbs highs on one side and reflects them on the other will let you do this. My impression is that it sounds fantastic! But wouldn’t have know had I not tried it. Just absorbing or diffusing first reflections is not nearly as pleasing to me. If my room was wider this might not be necessary, actually I know it’s not as important because I was set up in a wide room at one point and it sounded great. The narrow room was a relative letdown.