Do these woofers look right on these Dunlavys IVA's?

Those are drivers by Scanspeak and as 4krowme stated they have a doped cone.
What you see came from the factory as designed. Tom

Correction..the woofers were Morel, Vifa and finally Scanspeak..Tom

Dunlavy on the model  4s had 3 different versions. The big changes were changing the woofers from Morel to Seas to Scanspeak.  The Scanspeak required changes to the crossover and probably to the damping to maintain the Q that John preferred.  Along the way Dunlavy sent me 2 new sets of midranges that looked identical but sounded slightly better to my ear. Tom

You have IV's which came originally with Morel woofers and then there was a running change to the Vifa drivers. The IVa was an update that required a model change because of the Scanspeak drivers and the required crossover changes. The first 2 woofer sets were shiny the 3rd was not. Tom