do these seriously need an amp?
how would fiio E07k Andes affect the sound?
I have an Audio-Technica ath-m50 and I wasn't satisfied with the sound stage at first.
then I bought E07k Andes and still felt the instruments were 10 cm away from my ears...
as you might know, E07k has three gain setting - 0 , 6 dB, 12 dB - so you should increase the gain ( please note that it's an entirely different thing than volume) when you connect a high impedance ,say, a pair of headphones. for a 38 Ohms impedance pair you should normally set the gain on 6 dB .
when I switched the gain to 0 db , I was blown away by the sound stage compared to to 6 dB setting.
there is a catch though ,... the sound becomes "thinner" and I have to go back to 6 db (when listening to classical music for instance)
that all said, I'm a kind of guy who prefers sound stage over a little bit of SQ loss. so...
thought I should share my experience! ;)