I have the DAC3B and it is rather good, but a little hot on the top end. I had a $15k Lumin X1 to replace it and it was really good for the year I owned it. In fact, it was the best DAC and 2nd best streamer I had.
I traded the X1 in to buy speakers. I could not wait the long time needed to save up the cash for a second DAC I am planning on getting. Since Schitt Audio is 70 miles away from me and they have a 15-day home trial I thought I would try the new Yggi+ Less Is More DAC (1 of 3 new Yggi+'s and the worst measuring one).
I use the Yggi+ with my Sonore Optical Rendu streamer and feel that it is a better DAC than the X1, definitely better than the DAC3B. I notice the difference in the top end where the X1 seems a little rolled off to me. They Yggi+ is more like the DAC3B but not hot.
I was so impressed by Schitt that I also bought their Aegir 'Class A' amp for my headphones, and I love it. Yesterday, I ordered a new MJOLNIR 3 preamp for the Aegir.
Schiit Audio: Audio Products Designed and Built in Texas and California
I was using the Benchmark LA4 with both the Aegir and Sanders Magtech, but I came close to messing that up by being a bit careless, so I bought a second preamp.