My ESP950 works well, once I figured out the left/right volume knob. It does have a certain intimacy, especially with female vocals. It has a very liquid midrange but the treble can sound grainy and the bass lacks impact. I did try it with a higher-quality amplifier (KGSS) and it gave the sound more weight and less grain, but I still preferred my HD800S (I understand it's not a fair comparison) with most music. Definitely a unique sound and very comfortable, though I wish the earpads were of higher quality.