Hello everyone! I was wondering if I could get some suggestions. Let me just start off by saying in the past two weeks i have bought and returned several headphones including Ultrasone HFI-580s (liked them but highs were too harsh), Grado 225i (too thin sounding), Sennheiser HD 25-II (too uncomfortable/bass wasn't great), AT A900 (HUGE and had strange highs), Sennheiser HD 380 Pro, Sennheiser HD 600 AND 650's (all of these were too laid back and veiled for me). I have also had Sennheiser HD 448's and AT M-50's and own Denon 1001s. I am using a D4 mamba amp with FLAC files and none of these headphones seem to do it for me! Is it possible that I have set my expectations too high on what I should be hearing? The ONLY time i have been "wowed" by a headphone is when I listened to the Sennheiser HD 448's, but i returned them due to lack of bass. I was listening to Iron maiden in my car today ( I have a bose factory system) and thought if only my headphones could sound like this! Anyways, can someone give me a suggestion for a pair of open or closed phones under $500 that are very clear and very detailed without sounding harsh? I know it sounds simple, but none of the headphones I have tried meet this qualification. I also like the upper midrange to be a little heightened (i think it makes electric guitars sound great).I mainly listen to rock and techno. If anyone could help me out I would appreciate it. I'm so tired of buying and returning headphones to Amazon!