Well I had the Crossfade LP2's for 8 months before they got stolen and I can tell you this these headphones sound amazing. I believe that the highs are recessed because I could listen to music on maximum volume with a crazy headache and not feel any pain with them on. But the highs are still...

Another quick question. can the E6 bring the bass or kids up on the Sennheiser MX-581?

Another quick question. can the E6 bring the bass or mids up on the sennheiser MX-581?

Treble=Highs right? I know that the Crossfade LP2s have recessed highs and I don't know if Crossfade LP's have the same kind of driver preset, so I would like to know what amp can also boost that to something decent if it comes down to it.

Well I don't have the money yet but I will look into it and see for myself. Even though I am set on getting the E11, any number of things might get me to change my mind, two of those things being price and portability.

Thank you I will buy the E11.

Here's the deal. soon I will replace my stolen V-Moda Crossfade LP2's with ATH-M50's, and Crossfade LP's. I need a portable amp that can pick up on any shortcomings of these headphones and isn't too expensive. $50-$100 max.