@boulder_bob Gustard has a newish model, the X30. Looks really interesting. It's $3k, but seems like a lot of bang for the buck. There are rumors of a R30 which would be an upgrade to the R26 r2r dac. Not sure when it might be out.
I have a R26 with U18 ddc and LHY ock-2 clock. I'll probably ride with that for the unforeseeable future.