I own a CDT-8 Pro and a CDT-10. I bought the CDT-8 first and liked what it did enough to move up the line. I haven't compared them to other CDTs, so I'm unable to tell you how they compare. I do like both of them. The CDT-10 is in the same system as my Nuprime Evolution STA amp.
When I buy Nuprime gear, I contact John Casler (on Audio Circle) who is a Nuprime dealer.