I have not heard the Krell / CJ combo you are asking about. I have heard CJ/Levinson and CJ/Pass and the combination was very good in both cases. It would depend on what Krell amp and what speakers you are talking about. Krell can be rather harsh and sterile depending on what you are driving. The CJ tubed pre should smooth out the Krell amp but again it depends on what you are driving. I have no experience with MIT cables.
Chuck
Chuck