For what it worth, here is just a quick impression: V2 is warmer and fuller, especially on the mid and bass. Treble is cleaner, lighter and more extended on the v1. Unlike the smooth treble of v1, v2 has a little edge on the lower treble, close to being harsh but not there yet. Mid is fuller on the v2, though overall I think it is slightly too thick for my taste. Bass is not quite as hard hitting or fast on the v2, but it gains more body and texture. The sound signature, at least at this point, turns from the v1's warm'ish yet light, mid central with good extension on both ends to more of a full, warm and sweet to slightly thick sound. If I have to make a decision now, I'll probably pick v1 over v2. Well, it just have to wait till after burn-in before I make up my mind.