Thanks a lot :) After a couple more days of research, I think I'm going to take the M50 and HD 598 off my list.  The DT-990 and Denon D2000 have caught my eye.  But I am getting mixed results as to the type of amp/dac I would need for either.  I would be listening off my laptop's integrated...

So I've been lurking on this site for about a two years, and you guys helped me make my first jump into head-fi (my ears say thanks, but my brain and wallet don't, haha). I purchased Klipsch Image S4's a couple of summers ago and I've been pretty pleased with them.  Now, I am looking to get a...