Dynaudio's need some current to make them sound there best - I would recommend SS for them - but if you want tubes, then Rogue may be the way to go.
I also have S6e's and auditioned the SLI80 and the Cayin A88T. I thought the Cary was better in just about every way(about the same for bass as the Cayin) - gorgeous sound, but I stayed with my SS Classe Amp because I felt it just did not have the slam and bass response that I needed when listening to Rock. I did miss the SLI-80 a bit when I took it back to the dealer ( what a midrange ), but it just did not have enough drive/slam factor for my speakers. Cayin - was a nice Amp but really did not offer any improvement in sound over My quicksilver Pre and CA-101. Even when I used the A88T as an amp only using my quicksilver as a Pre the Classe outperformed it for the most part - mids were more lush with the A88T - but or the most part I was not really that impressed, noting all the publicity it has recieved.
It is a nice value as is the Rogue gear (which I have not listened too, no dealers near)but the reviews I have seen on the Atlas or Cronus intergrated are all good.