A friend has had a set of these for ages. We found a difference between two source setups. A particular Sony DVD player sounded incredible - each note seemed pe

A friend has had a set of these for ages. We found a difference between two source setups. A particular Sony DVD player sounded incredible - each note seemed perceptible in a 3D space [1]. A CD player he had, didn't. [2] We tried with Yamaha amp, without, different configs of widgets. That DVD player with nothing added was the best. He gave it to his sister and I haven't heard anything like that since. I nearly went off on a tangent and bought an amp etc, but I'm happy with my much cheaper HD380's - great price/performance :) But those 600's are awesome. [1] I've since learned it's called soundstage [2] How would the source influence soundstage? Sounds irrational to me. Hey, one sounded better than the other and I don't know why.