This is an old thread, I just stumbled on it. I have had great luck with Classe. I bought a "demo" CP-35 phono board, and it didn't sound very good. I emailed Robert and they sent me a new one, no questions asked, no cost. I came by air a day or two after I emailed.
This was fall 2002.
In the end, I think the new board did sound better (they had apparently improved the design a bit), but my main problem had actually been ground hum! Not their fault at all.
Anyway, I was really impressed with the help they gave me.
- Eric