Holy Crap! Man, do these things sounds freaking amazing! I got mine off of Ubid for $112.00. This is the best $100 I've spent in a long time. I had purchased a pair of 570's from Good Guy's about two months ago and I *thought* they sounded really good. Nope. Having both headphones and being able to compare them has really shown me how poor the 570's sounds compared to the 580's. When listening to Sinatra's "Fly me to the moon", the 570's sound like Frank is singing behind plexiglass where as the 580's sound like he is standing right in front of me. It's a weird sensation. Every instrument sounds like I have my ear right up next to it. I hear EVERYTHING. If I could get this kind of sound from a wireless set(hello Sennheiser), I would never take them off. Ever.