Wow, so you jumped right into high end planar magnetics for gaming??? Are you sure you're not trolling?
A sound card is essentially a DAC, so you'll either be using the Phoebus or the Fiio. I doubt the Phoebus will be able to bring out the HE-400's potential though.
A sound card is essentially a DAC, so you'll either be using the Phoebus or the Fiio. I doubt the Phoebus will be able to bring out the HE-400's potential though.