Sorry if I end up rambling a bit: last night I went to the AudioCubes store in NYC. First off, although it's not directly related to my question, it's worth noting that that store is absolutely awesome. I had a blast playing with awesome headphones and insane Japanese gizmos. Okay, getting back on track: I went there to try on the ESW9s, which they didn't have in store. Okay, not that great - they did however have the ATH-ES7s, which I heard are basically the same shape as the ESW9s. The good news is the ES7s fit me surprisingly comfortably, which is well, good to know.
I also got a chance to plug my iPod into a bunch of the headphones they had there, and the results were... interesting. I don't have a trained ear, but on some of the higher end 'phones, like the W1000 or the Denon D1000, I heard... nothing particularly special. I could tell they were better than my beat up old Sony MDR-V600s, but to my ear, they weren't all that much of an improvement. Maybe they're meant to be heard with an amp? I don't know, but I don't have an amp and won't be getting one in the near future, so it's kind of irrelevant. The ES7s, on the other hand, were totally different. While I originally tried them on to get an idea of how the ESW9s would feel, I found myself absolutely loving the sound. My iPod, to my ears, sounded way "better" (clearer vocals, better separation of instruments, more lively beats) on the ES7s than any of the higher end 'phones.
Anyway this roughly brings me to my question, which is this: How does the ESW9 sound compare to the ES7s? Do they have a "distinct" sound, or are the just like ES7+++? Because for whatever reasons my ears were not pleased with much but the ES7s. If the ESW9s have that sound but more, I'll almost definitely pick them up. But if they don't, I might just go with the ES7s because I know they sound really good to me.