Well, I don't even have a pair of mid-high range phones unlike you =___=. Looking toward the HD650 but I got a lot more research to do. Really right now the only thing I can say is $300-450 is my price range and they must be full size open. Other than that, not much I have to go on. Not sure what I want to be honest. It will be my next main can though so it needs to fit well with my library of music.