Calling all Dunlavy Gurus

Thanks Doug99, I'll check out that article. Again, my feeling is that the VIA is definitely superior to the IV. The delivery guys took the IVs (traded) when they delivered the IVAs.
I heard the difference as soon as I fired the IVAs up.

I would look at a pair of IVa's. I've owned both and IMO the IVa was significantly better than the IV particularly in the integration of the drivers. The overall coherence of the IVa is quite noticeable.
The IVa cost about double the IV.

Americanflag,
I honestly don't know. Purchased the original SCIV when they first came out @ $3999. Replaced these later with SCIVA @ $8000 if memory serves.

Frankly I didn't know there was a third version. I'm not saying there was no third version, I just never heard of it. I do not, in any way, consider myself an expert on these speakers.

I do know that I much preferred the IVA over the IV for reasons expressed above. IMO: When Dunlavy tweeked the original design he made major improvements.