Those are diffuser cones................kidding. I actually saw these and wondered the same thing so thanks for asking the question. I have no interest i these so good luck!
Do these woofers look right on these Dunlavys IVA's?
Looking at getting these speakers but in the close up showing the woofers they look very frayed- should they look this way or are they on their way out- thks for the advice- here is the link on audiogon-
https://www.audiogon.com/listings/lisa23gb-dunlavy-full-range
https://www.audiogon.com/listings/lisa23gb-dunlavy-full-range