I can see how the HE400 can be a bit peaky off other sources/amps. They sound so swell off the NFB5, that I don't feel they need any adjustment.
Wow, the DT990/32 sounds REALLY good with the E17. I would've expected my sibilant tracks to really stick out... and they don't. I'm almost inclined to say that treble is smoother than the HE400s with the E17!
I don't even need the treble reduction! These tracks would have destroyed my ears with the DT990/600. I'm now convinced that the DT990/32's treble isn't as glaringly harsh as the 600ohm, especially with a portable amp.
DT990/32 + E17 = BLISS.
That is quite possibly the best fun setup for music in their price range, which you can also use for well balanced gaming with a bass reduction on the E17.
Edited by Mad Lust Envy - 8/29/12 at 2:01pm