When I owned Von Schweikert VR5HSEs I was concerned about the lack of availability of replacement midranges, as the Aerogels are out of production and are very hard to find. The tweeters and woofers are much easier to source.
Albert felt this was one of the very best midranges out there at the time, and I agree.
I obtained this 5.25" Audax HM130Z12 8 ohm unit, brand new in box, which is a replacement midrange for one box VR5s and HSEs.
Albert used them in VR5 and 5HSE models from 2001 until they were discontinued. Later, 2 box VR5s used the PR series aerogels or other types, all of which had a round basket.
I've not owned the VR5s for a bit, so this is just gathering dust.
I have the datasheet for it as well.
These listed for $67 when available and were bargains. I'll ship this to you for $40, cont. US only.
Thanks for having a look.