I've been out of the head-fi game for a bit simply because I've been quite happy with my portapros. I used to own quite a few IEMs, most notably the Rock-It R50 and the Yamaha EPH100. Then I borrowed my brother's PortaPros to watch a TV show and man, I had to have them. I haven't used an IEM for years now because of the portapros, and they do a pretty good job as a TV/Movie watching headphone, and not too bad with orchestra soundtracks. I have a question for you PortaPro owners that also own other full-sized headphones:
What would be a clear upgrade to the PortaPro's that also have a fun sound, but a much larger soundstage, and are more resolving? I'm looking to spend under $200 and I'm currently deciding between the Sennheiser HD 598, AKG K7xx, or the Beyerdynamic DT990 Pros (I'm open to other models as well). I will be using these for gaming, tv/movie watching and listening to film/video game soundtracks, some techno, and the occasional rock, jazz or classical. Any help would be appreciated, thanks!