So, hey, I actually made a post in this thread earlier, but the situation has changed a bit since then. I purchased DT880s (250 ohm version) to replace my ATH-AD700s, and when I tried them out, the general sound quality seemed the same. They definitely sounded different, but not better. If anything, I liked them less, but that could just have been me being less used to the sound. The worst part was that they were very uncomfortable. I think that this may be because the ATH-AD700s have spoiled me in comfort, as they are quite fantastic (I hadn't really realized this until trying the DT880s).
In any case, I sent the DT880s back, and am now considering what other headphones I could buy. I had the AKG K702/1 in mind, but I hear they're very uncomfortable, and, unfortunately, comfort is a pretty big deal for me. I noticed that I like the sound-type, and fit of the AD700s (at least, compared to the DT880s), so now I feel like the obvious upgrade would be to the AD900s. In fact, there are only two reasons (besides just wanting to be absolutely sure about a purchase before making it) I haven't bought them yet. One being that their impedance is basically the same as the AD700s, which sucks because it's hard for me and my friend to listen to music at the same time (my E7-E9 combo allows me to plug in two things at once), due to him using RE0s, which have a higher impedance. The other being that the little headpads on my AD700s became imbalanced after long periods of use, which makes the position of the cups over my ears change, which seems to make the left side louder. This is probably just due to mistreatment, as I was, admittedly, careless with them. A mistake I won't soon repeat.
So, yeah, do you guys think that the AD900s are a good idea? If not, what would be some other good choices in that price range?
RS1i > 325is ? 
