R2R Ladder DACs or All in One Streamer Solutions


I am soon to own a Pass INT 25 integrated amp. I also own an Oppo 205. 

I am now searching for a separate DAC to replace/improve the DAC in the Oppo.
Budget $2k. Used preferred.

I like the R2R ladder sound and want a tube inside for a little balance with the Solid State gear.
My current source is the Oppo 205.

I am also shopping for a Streamer/Ripper/Storage device. Roon friendly and DSD capable.
Budget also $2k. Used Preferred.

It seems that the few offerings of these all in one solutions all contain a DAC.
My thought is that the DAC included will not be any better than the Oppo so it is of little use.

Has anyone been down this road lately? 

Am I missing something?

Thanks in advance for sharing your experiences!
chorus
chorus
I like the R2R ladder sound and want a tube inside for a little balance with the Solid State gear.
If you worried about that, don't get a tube R2R dac or that's what your stuck with.
Get a good solid state R2R dac one that has digital domain volume, just incase you want to use it direct into a power amp down the line.
And if you feel you need a tube somewhere, then just purchase a tube buffer stage separate to go after the R2R dac.

Cheers George  
I was also going to suggest a Lumin U1 Mini plus either something from Denafrips or Soekris. Use a tube buffer or tube preamp if you want to add a little color.