ilkness is a fking idiot tho... not going to read that drivel, iv'e read enough of his garbage enough on reddit.
Some (well, a lot) of worthfull information on speakers
Really interesting read:
https://www.audiosciencereview.com/forum/index.php?threads/evidence-based-speaker-designs.6441/
https://www.audiosciencereview.com/forum/index.php?threads/evidence-based-speaker-designs.6441/