What's the differences between Krell's Cxs and Mc

Yes I have. I think it is a worth while upgrade. I got a chance to hear them side by side at my local dealer. Besides the power increas Krell ads thier improved cast II and sustained bias III circutry. I am on a waiting list for the upgrade myself. Good luck.........Vader

Sfstereo, I do agree with Audiopath on most of his comments, however it is far from laid back. I dont know what equipment Audiopath uses but the system I heard it in had tremendous slam! The bass would cave in your chest at the proper volume. The upgrade cost depends on your unit and its age. as always .....good luck Vader!