Actually, I find some change in sound with electronics but not huge changes. I hear differences in the treble detail and in the ability to control base, but the overall sound does not change that much. I have tried Edge, Levinson, Classe, AR, Simaudio and even B&K and Dussun with my Cremona. Simaudio is the only one that really seemed to suck out the magic - really made the sound too tame. And B&K made the treble harsh, but it is known to do that - had it around for HT so gave it a try. Otherwise, the differences were more subtle than dramatic. Current setup is Classe CD and pre and Levinson amp. Thats what I liked the best. Seems to me that the differences being discussed here are mostly due to people's ears and preferences, both in music and in sound. I am continued amazed when I go into a shop and hear someone going on and on praising a system that sounds terrible to me. It seems trite, but people really need to listen for themself and make decisions based on what they like. Bob- any luck on finding some M's to listen to?