Tube or R-2R DAC for Tube System


My main system is a tube system, tube amps, tube pre-amps, etc. I am in a choice of a new tube or R-2R ladder DAC. I have no doubt about a tube DAC, but I also have heard a lot of good things about the R-2R ladder DACs. May any of you share your opinions?
idolindian
We make both tube DACs.  One with the Sabre 32 bit chip and the other with the R2R board.  The Sabre uses a single 6SN7 with a single rectifier (GZ34 - 5R4, etc.) and the R2R is a 101D direct heated triode design.  They have similar sound characteristics, but the 101D is a much more sophisticated design.

Happy Listening. 
Solid-state IC DACs verboten? I feed the output from one into an integrated tube amplifier. Maybe that is how the system produces a well-defined and musical sound.

I've had very good results with a very rare DAC, a GeorgeMark Audio from the early 2100s. It's a tube gain stage with volume control and an MSB DAC board built in with tube output stage. I drive it with Cambridge CDX drive running into two Monarchy anti jitter stages in series.

Previous to this I used a Melos preamp with built in DAC and a tube output. Again excellent performance. Tubes seem to make good DAC output stages.
I use a Denifrips Ares ii with Vincent Audio Hybrid Pre / Power amps a really nice pairing.  I have tried several tube amps but miss the really low bass I personally enjoy.