I have used Krell 402e in the past and I was very happy with it. Now I use Devialet Expert pro 1000 and they work very well as well. I will say this, however, that Mark Levinson amps are not a good match. A few years ago I brought the No. 532 home for an audition and to check it with my speakers. Initially the soundstage in the mid range was virtually nothing short of jaw-dropping. It sounded that good but after 35 minutes of listening at high-volume the amp shut itself down due to thermal overload protection. I tried again and again and the same problem repeated itself. I returned the amp and brought another one home. It also faced the same fate and I had to return it. But then sent an email and spoke to their marketing person at Mark Levinson. He said that he would get back to me but I never got an answer. I think the speaker presents a very difficult load to the amp which it can’t handle.
