And it takes time to get used to them, at first they will sound kinda deep, but after using them for 3 days, they're just getting better and better.. I'm hearing even more things i didn't notice before..
Technically speaking, they sound the same as before. "Burn in" is basically a mind over matter thing, you think they sound better because your brain gets use to the sound.
Also, because I feel have to say it, EW iPOD! Good as a multifunction device, mediocre as an audio player.