Well, now I own Beats - Studio (I got it for 200US still expensive though). I know a lot of people here don't like beats but I have already owned it for a year.
Back to the topic, I wanna know whether Beats Studio ,which already has integrated amp inside is capable for using with amp/DAC? I am making a decision to choose NuForce mobile, Fiio E7, or Hifiman EF2A. Could you guys please give me some advices?











