Ive heard some people play with phase and delay on tracks that make even ordinary headphones sound amazing. There was this sample track I heard where it was somone rattling a box of matches .... and the demo track was the box being moved all about you. And when you listened to it, it actually sounded like the box of matches was physically futhor away from you at points in the sample. For the life of me I cant remember the people who did that demo //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif
EDIT: LOL, i just finally downloaded that track link, its the one I was talkn about LOLOL! talk about coincidence. That track came out in 1994.....lol