For the sake of not mis-leading others, I'll have to say this is something I don't 100% concur with. If one listens to female vocalists, the HE-400 really shows a weakness in this area. I was content with the HE-400s for nearly a year. That was until I started to bring in more female vocals into my music listening. It was at that point where I realized the HE-400 was not going to work for me, even though I really liked what it did in the other areas.
For someone who chooses to listen to other music where female vocals are not present, the HE-400 represents a very outstanding value. Again, a very outstanding value ... save for the female vocal issues.
Yeah I'm noticing the female vocal issue quite a bit (mostly listen to vocal trance).
I find it odd a Sony F807 drives the HE-400s better than the Xonar DG + E9. Can't tell on the treble but the bass sounds just oh so much better on the F807. Mids sound a bit cleaned up as well.
The Veldt by deadmau5 also sounds amazing with the F807.
It's a toss-up now between HE-400 (aka live with the female vocal issue and treble-ish issue, but the bass) which I can get for ~$345 open box, Mad Dogs, Annie's, and HD650, though I don't think I'd like the HD650s since I'm not into mid-bass* as much as rumble.. And can't decide on the Annie's because I'm afraid the bass is going to be too weak for me.
Edited by AyeVeeN - 3/24/13 at 3:34pm