Hi there,
 
Great sound card and I am already purchased a DT880 to match with it and see how it goes. Two questions:
 
1) As captioned when playing music via Spotify, I experience chopping sound when a Chrome tab is running a video ad in the background. I think it happens as I upgraded from the stock driver to the latest one (v.0.217). Any clue on this?
2) Is DT880 a certified headset? Don't see it on the list yet. And I assume NU Audio can drive 600ohm version at ease. 
 
Thanks for your attention!