chorusIf you worried about that, don't get a tube R2R dac or that's what your stuck with.
I like the R2R ladder sound and want a tube inside for a little balance with the Solid State gear.
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