I bought a used Iris12th from Denafrips repair center and it failed, maybe it was a faulty unit that was sent in for failure, repaired and failed again, sent it back. Bought a used one off USAM and it did fine, sold it still playing with no issues.
reliable DDC
I'm in need of a good DDC for a DAC that only takes SPDIF input. So I need USB > SPDIF. I own a Gustard U18 and it's working, but I've read a lot of stuff about reliability problems with Gustard or Chi-fi in general. The only other audiophile level DDC I know of is the Denafrips, also Chinese. Are there any audiophile level DDCs made elsewhere in the world (say, USA?)