Fyi
its all good Vifa drivers were well over 20 years ago not one part is the same with latest 2 speakers now w 5 as woven cone mid drivers and tweeter I get they didn't work for you in your crib but in most rooms they sing .
The concept of time
correct and stealth enclosure still works. Try a give a listen to latest
efforts with AQ wired system and not too many pads on the wall that kill needed overtones then pop back here.
best JohnnyR