First off, I'm driving these and any potential future headphones with my Asus Essence STX soundcard primarily and I was wondering what headphones you guys think can compete or completely blow these out of the water if the max price would be 500$/320€?
Ignore the fact that these I've got is a headset as I will get a new mic anyways. Also, the headphones would be used for everything done on my computer meaning not only music but also games, movies etc. Very anxious to hear the opinion of the more experienced users here as the most expensive headphones/headset I've ever listened to are my PC-360 and I'd very much like to experience even better sound if possible for that amount of money.
So far on my list are the Beyerdynamics DT990, DT990 Pro, DT880, DT880 Pro and the Sennheiser HD650.