I was working with a dealer concerning the purchase of a new amplifier that sold both CJ and Mccormack equipment and he recommended either the DNA 500 or the CJ premier 350 for my application and that both amps would match well with my CJ premier 16 tubed pre-amp. I eventually bought the CJ premier 350 from him. But the point of my response is that he felt that CJ tubed pre-amps would match up well with the Mccormack DNA 500. Good Luck and hope I could help.
Chuck
Chuck