Recently acquired a Naim seperates that consists of NAC 112 pre and NAP 150 amp. It drives a set of Epos ES-11. I spent the weekend listening to it and like it very much despite reading that the NAC 112 isn't a very good pre amp. I noticed that that the Epos are able to handle low end with much more ease than when they were partnered witht the Creek 4040S2. For example with Madonna's song Erotica the Epos would bottom out but not now with the Naim equipment. Also have a CD5 in this system and it outperforms my phono set up.I have to say that I have been moved to tears sevral times with this system. Shirley Horn sounds incredible by the way. Very happy with the system and even considering letting a lot of my other equipment go.