I will (hopefully) be attending the DC area meet in November and I want to try a few more headphones before making a decision. Will probably be giving the 400S to my father as a bday gift in January. He came to CanJam with me and was blown away. Right now he is using HD595 I gave him from a few years ago. He has a nice Nikko stereo receiver he bought new in the late 70's :o so they should pair nicely with the HE-400S.