Thanks you, just 2 more question:
1) does it matter from what source will i use to do the burn in ? ( i have iriver ihp120, laptop, vsx 521 receiver, iPhone 4)
2) I read that the quality of the music I use during burn in is also important, does 192 bit is enough or I should use 320, flac etc. ? and how about using something like soundcloud?
No to both. burn in is basically mechanical wear induced to the driver to reach optimal condition for sound reproduction (as is for car engines). so it doesn't really matter if you burn in with high or low quality music, as long as it encompasses wide frequency range and is loud enough. I use noises and frequency swipes in a looped mix... set the volume on higher level - one that you wouldn't dare to listen to... :D