Looks like you are having a lot of fun... the man cave is particularly interesting 🙂There have been a lot. Here's a sample.
Suggestions on OB problems
Fast, fun, Inexpensive OB project
Caveman Speakers. The Troglodytes.
It's all fun stuff.
Next up -21" woofers!
Have you tried open baffle speakers without the baffle? As in, as small a baffle as possible? As I mentioned, I noticed a great improvement in clarity when I made those pyramid like OBs; the goal was to have a little baffle as possible.