Cornwall IV vs. Volti Rival, Razz; Razz v. 1, 2, 3 -- what changed?


Looking for efficient speakers. I had the opportunity to listen to a Cornwall IV yesterday. It was run on nice tubes (Primaluna 400 EL34s) with a bluesound node streamer/dac.

QUESTION: I'm curious if anyone has compared CW IV with Volti Rival of Razz. Thoughts?

QUESTION 2: Anyone know what changed in the Volti Razz when it moved from v. 2 to v. 3?

Thanks

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Looks like all of @silverfoxvtx1800 posts are gone, removed from this thread, and a few others too perhaps.  What's going on with forum posts lately. Is that self-removed or forum moderators, and if so maybe less effort is the way going forward if things just disappear for whatever reasons.  

He must have angered the administrators in some way. I see that they reached out to him about a problem with his virtual system on this thread. They might have had a private squabble. It'll be interesting to see if he reappears, and what he'll have to say. 

I just now have noticed what was mentioned above with all of @silverfoxtvx1800 posts in this thread being removed.  He was very "enthusiastic" and had PM'd me on a few of my experiences re the Razz and my visit to Greg's shop.  I noted in one of the PM's that the admin and removed specifics of his email address as he wanted me to reach out to him on his email- evidently not allowed.  This was the last I heard of him.....