oh oh btw, i think you guys will find this very itneresting! http://www.youtube.com/watch?v=G5X9oUNSYyE i came across this track while searching for a track to test/burn in my focal, and holy ****, when i was listening to this track it fraeked the **** out of me! thought someone came into my house and just around me! haha i think this track is to test the surround sound effect of your headphones or something? well if it is for that purpose then focal spirit one is amazing at it! ha!