Very nice setup! I'm running a Schiit Bifrost with a Lyr 3 on my PC. 

Recently picked up a FiiO BTR7, and it's a fantastic way to use my wired headphones on the go. I've been using a pair of Beyerdynamic DT 1990 Pros for many years. Love them. Also works great with my Focal Bathys in wired mode.

I have my first order from Hifiman arriving today, but I'm way too embarrassed to go into details about that purchase. 😂