The difference in music quality through a pair of professional studio headphones is crazy. Take a beatles tune like Dear Prudence. There's no BS eq or boosting in these puppies so you get exactly the sound that was intended and it's so clear. But there's so much space in this tune inbetween the different tracks ... with respect to where they're positioned around your head. You don't hear that normally. Sounds very organized and almost simple. Brings tears to my eyes.