Single Source Tube PreAmp?

What's your price range...Aesthetix Io can be configured this way....

Dhcod,
The Coincident Statement Phonostage might be what you`re looking for. Several reviews are available on line.

Good Luck,

Are you looking for a line stage or a phono stage?

The Manley STEELHEAD tube phono stage can be setup as a preamp and has a very good following.

Many reviewers considered it "state of art" a while back.

So long as you have a phono stage for your turntable, you could get by with a tube buffer such as an Decware Z-Stage, which has a single input, tube gain stage, and gain control. I own a Z-Stage and just installed a Sophia Electric 12AU7 tube. I am even more happy with it now. Eastern Electric also make a tube buffer that looks quite good and has good reviews.

Line stage. I have an ASR Basis Exclusive, so the Steelhead isn't really what I'm looking for, although I considered it when I bought the ASR but the ASR sounded better in my setup.