North Star. Now discontinued but still great gear from their last generation. There is one on USAM right now for a heckuva price.
I treated myself to a PS Audio DSD Directstream DAC with their Bridge II a few years back. Was totally happy with it as received, and each upgrade to the OS seemed a revelation of new detail and less noise. Never thought I would look at another DAC.
Then I happened upon an R2R DAC, a Holo Audio Spring DAC, the level 3 “Kitsune Tuned Edition” with a Singxer SU-1 connected via I2S.
I must say I am still smitten with this unit.
I should update the PS Audio DSD, as I am one or two levels back on the OS, and then listen to it again and compare to the Holo. But it seems like work, as compared to listening to some new music on the current setup.