Having owned the MS400 and ESW9A, and auditioned the HD25, my impressions are pretty close to joker's. My favourite still lies with the fun bassy MS400 and I love it's midrange. The HD25 was just too... angry, for lack of a better word. The ESW9A were excellent and felt like a lighter MS400, but something about the sound just didn't do it for me. It felt a little boring, even though my initial reaction was "wow, these are nice... but meh". Maybe it just didn't carry as much midrange as I wanted, though it had a nice warm resonance which I liked way more than the airy resonance of the A700/AD700. I remember the ESW9A were also a bit pickier about sources/amps. I don't remember which ones it paired well with, but I remember not liking it as much out of my D10.