You have to decide for yourself what you want to buy, with such a high impedance headphone an AMP is a very good option. I tested a Little Dot MK3 and later changed to a LYR 2 which I'm very happy with (both tube amps). Still with these two you need an additional source, but the sound of a tube...

Hello,   I'm rather new here but have been reading and stalking from the shadows for a while now.   Currently my setup Fiio X3 1st gen + Beyerdynamics DT 1350 started acting weird, sometimes I loose one channel or I have a lot of noise while walking. I suspected the player to be the...

Your post lacks pretty much all information, what is your "desired" audio quality, how many channels you actually want to use, is it mainly for gaming, movies or music? I assume stereo for headphones, why then buy a 7.1 soundcard? Also, using an amp alone won't give any advantages in sound...