In skimming this thread I didn't see them mentioned so thought I'd shout out to Kitsune' / Holo Audio. I first went with the Holo Spring Kitsune' edition R2R from a standard chip DAC and loved the improved sound. R2R for me until some kind of audio breakthrough happens.
Since then I moved the spring to another system and got the Holo Audio May for my main 2 channel. Terrific sounding!
Since then I moved the spring to another system and got the Holo Audio May for my main 2 channel. Terrific sounding!