Hi all, I am not an audiophile by any means so I don't really know anything about headphones so bare with me. I know people hate this but right now I have Studio Beats and I'm looking to upgrade. I listen to mostly Alternative Rock, Post-Hardcore, Electronica, and Hip Hop. so i do need wider range headphones. But to be honest i do enjoy the cheap thrills the Beats give me when listening to dubstep or hip-hop. They are not so great at Rock though so I am looking to switch up. I am currently looking at the Ultrasone PRO 900s and the AKG K550s. And yes looks are a deal-breaker for me considering I wear my headphones all the time. I really like how the AKG K550s look and the Ultrasones look good enough i guess. So now its down to sound. I do enjoy pounding bass when listening to dubstep and I don't think I'm willing to give up too much in that area, I would like to retain hard hitting bass while improving mids, highs, etc. So what do you guys think between these two? If there are any good looking cans I don't know about suggestions are fine too- I'm looking in the $300 price range ALSO: Do I require an amp for either of the headphones, because I'm used to just replacing the triple As in my beats and that seems to be easier than carrying around an amp which i'm pretty much not willing to do at all. Unless its tiny I guess, but i'd prefer not to.