I re-arranged my room. Things are a whole lot more symmetrical. I added a bunch of half-assed bass traps and tweaks galore. You can see in the upper corners I have eight nerve corners installed. Somehow, I can't figure out if they do anything at all. That one is very iffy. Fiberglass panels front and center behind my speakers. There's a third panel that straddles the rear left corner of my room and acts as a pseudo bass trap there, just barely. I have a stack of cut of rigid fiberglass in the front right corner which is a pseudo 1/3 height bass trap. I have another bag of regular fiberglass stuffed into the rear right corner to form another 1/3 height bass trap. One day, I'll complete the stacks and get them to full height, full strength
My bed, sheets, comforter etc are in the front left corner so hopefully that will provide just a tad of bass absorbing affect as well
I have some assymtrical parts of my room that aren't shown but part of one is stuffed with clothes. I have a window on the left wall that is covered with very light drapes. There is a mirror to the far right.
The interesting thing is that since I moved everything into this configuration, my slap echo and reverb that I usually get from the clap test are all but gone. My speakers are very close to symmetrical width-wise, off by a few inches, but my room isn't 100% symmetrical in the first place, so I'm not all that concerned. Rear of the speakers are now about 2 feet from the rear wall. I'm still not getting that 40ft deep soundstage that some people say they get