Thanks for the replies.   Does this mean I don't need a DAC at all? Will I be better off with the E11? Because then I wouldn't be paying unnecessarily for a DAC that won't be used...   Also, when using a headphone amp, will I still be able to use the equalizer of my soundcard?

Hello,   I am looking for a way to improve sound quality from my Philips Uptown headphones when playing music from my PC and phone. I now have an Asus Xonar DG soundcard in my PC which already greatly improved the soundquality compared to my motherboard soundcard. I found the FiiO E7 and...