Fairly new, less than 6 weeks old.
Purchased from Apos Audio.
Still waiting for a reply from their support (via email, sent last night, so only 24 since I sent support request/problem description)
As for audio, I did like the sound for a delta sigma dac. (Certainly better than my original foray, a bluesound node 2i). I just found that I really do hear a difference between R2R and d/s and that I prefer one over the other depending on characteristics of the particular music.
Just waiting to hear back from Apos Audio. I’ll wait another 48 hours, give 3 business days, and then email them again if I don’t get a response.