Tube Preamp with Solid State Amp?

I'm also searching but I also need XLR inputs on a tubed line stage/preamp as my Nagra MPA has only XLR's.
I don't want a transformer/adapter XLR-RCA.
  Any suggestions?
Speakers are Wilson Sabrinas, only digital source.
thx

I also have a Parasound A21 amp and I'm running a Jolida Fusion DAC preamp. It's a great combination. The soundstage is really lifelike. I'm running Meadowlark Kestrals. I got the factory upgrade option from Jolida.
I run digital music exclusively, either through Bluetooth or using my PC as a source over the USB cable.
I am running the balanced XLR connection between the two.
I am completely happy with this system. 

I'm also searching but I also need XLR inputs on a tubed line stage/preamp as my Nagra MPA has only XLR's.

Atma-Sphere, BAT, Aesthetix...

Love my combination of Parasound A21 + Backert Labs Rhumba 1.3 which is a tube preamp. The resolution, soundstage width/depth and impacts are stunning!

I been running a tube pre (mullards) and a class D PS audio amp for years.  Has a great sweet spot at moderate levels but the punch can be fatiguing at higher levels.  Been considering trying a class A/B power. Love how cool the Class D runs.