I probably missed it above since this is a really long string, but the open baffle speaker is a technology that’s now getting a lot of focus from a few really good designers. Steve Guttenberg, New Record Day and Thomas and Stereo on YouTube have reviewed some notable ones.
I switched to open baffle for both my tower speakers and subwoofer about a year ago and it’s stunningly good. Both GR-Research kits.
The theory is that the lack of back pressure in the cabinet allows the drivers to react faster without overshooting.
Everyone who has heard mine want them.