Brand new Denafrips Pontus 15 clicking constantly

I just got a brand new Denafrips Pontus 15 delivered. I swapped out my Mytek Brooklyn DAC using the same cables. I'm getting a constant click, about one a second. Here's a recording of it,

https://www.youtube.com/watch?v=zgdq0NUIABw

I am using a Bluesound Node 2i as a streamer, coaxial output into the Denafrips. Using it in NOS mode, but it happens in OS mode too. I'm using the single-ended outputs into a Primaluna Dialogue Premium preamp, and HP poweramp.

Any ideas on how to trouble shoot this. I'm hoping it's not a defective unit, but it sounds like a digital processing issue to me.