I recently upgraded from a CA200 (newer version w/heatsinks on sides) to Pass X250. What it gave me was alot more resoluton & detail, a bit more analytical, but i also upgraded to the Pass X2 pre from AR LS-3 at the same time. I have not heard the CA 301 but know they are huge heavy monsters. I think I remember a post here about the ca200 being better sounding than the 301 sometime ago. I got away from Classe for reliability issues more than sound. good luck.
