SoundblasterX G6 or Schiit Hel?

Hi folks,
I own my Beyerdynamic MMX300 Gen 2 headset, and I look forward to grabbing some DAC. I want to hear all suggestions from all of you whether which one I should go for.

FYI: I usually prefer more casual gaming and listening to music rather than comepetitive gaming. The genre of music I prefer to are classical rock, modern rock, pop, and sometimes heavy metal.