I've recently had the pleasure of listening to my friend's AKG K240 MkIIs, and I think my next purchase after the HD25s will be something akin to the AKGs, but higher up the line, hopefully something with a bit more bass impact but definitely not overpowering; I found the AKGs to sound not under-emphasized so much as just distant. I love the soundstage and the more balanced presentation, the music definitely sounded more "real" than my MS400 or any IEMs I've ever owned. Maybe something a bit more forward in presentation in general than the AKGs, but hopefully with even better soundstage. Something like that would be worth saving for, worth waiting for.