Look into Totem speakers as Vince doesn't believe in stuffing, neither do I. It's for amateurs!
It's a quiet Sunday morning and I actually watched those two videos you attached. The Totem speakers I've heard are pretty good in my opinion. However, neither video ever mentioned the presence or absence of cabinet stuffing. In my opinion, those videos were sales pitches, 17 minutes of sales pitches. They weren't necessarily nonsense, but nonetheless, I'm sorry I watched them.
The speaker did briefly mention coating the inner cabinet surfaces with borosilicate damping. Borosilicate is a 50¢ word for glass, no different than a heat resistant Pyrex glass jar. What's the functional difference between spun glass stuffing or coating the insides of speaker cabinets with borosilicate damping? None! The critical questions are: 1) How much damping material is inside the cabinet? And 2) Is it enough to accomplish the goal of fine tuning the bass response of the woofer and cabinet. Spun glass, borosilicate coating, polyester fiber stuffing, or even fiber made from recycled blue denim all get the job done.
Saying that you don't believe in cabinet stuffing is, at best, misleading. Your Totem speakers do have glass damping material in them. It was applied as a liquid coating. Once dried, it works no different than other types fiber stuffing.
