Hi, before anything, I know nuforce ne-7m are IEM, but i own them, so i'd like a compare against them. I'm looking to buy a pair of headphones for music and gamming. Dont really care much about isolation. I mostly listen to rock i guess, i really like detailed sound tough, i guess it would be more like a delicated rock. Altough i do like bass, i find that the nuforce ne-7m are quite enough. I also like to play fps games, and was wondering if the hd555 soundstage would really be helpful?(with the CMSS-3D) I will use them on an Ipod touch 3G and on a Creative Soundblaster Xfi Xtreme Gamer sound card. So, can anyone tell me something about HD555 or 7506 in comparison with the nuforce iem? Thanks! PS: sorry for the english, not native speaker.