This is my purpose made room 12ft ceilings, no equipment racks or anything between the speakers, just a short wall for bass loading 1mt behind the speakers.
I heard this similar setup back in the 1980’s at Sydney Symphony's orchestra conductors house, and I’ve never heard/seen image and depth sounding stage like it, until I did it myself, the depth of image goes out into the backyard.
https://ibb.co/GchxG4j
Cheers George