I have no experience with the Yggy, but I did try a Gungnir when I was looking for a new DAC. I only had it briefly, as the loud relay clicking between tracks, and the loss of the very first few milliseconds of the tracks, led me to return it and take the restocking hit. Yes, Schitt did warn me about the relay clicking, but it was much more intrusive than I had imagined. I tried a few more non Chinese DACs in an attempt to avoid ChiFi, but in the end, the Pontus II was a clear winner in this price range. I am really enjoying it's analog, smooth yet detailed sound. FYI, I am using the original firmware with no plans to upgrade to the new firmware.