Classe CA-150 or Conrad Johnson SA-400

I am interested in how these two amp's compare to each other. Before you respond, I am not asking which one is better for my system, because I know what the responses would be. I am just looking for peoples impressions of them.

I am going to be buying two used amps: one Wyred 4 Sound amp and one of these other two. After auditioning them for a little while, I will sell the one that does not sound as good in my system. Seems like a fun project!

Anyway, since the W4S is so different, that one is already on it's way. I need help choosing the CJ or Classe for me other amp.

Thanks for your help.