What separate tube phono stage do you use ?

I don't believe in "giant killers ", but there are components of outstanding value.

Inna, you are quite correct. The TRON Convergence is small and perfectly formed :) :)

Aesthetix IO Signature with combination of NOS and modern tubes. Sounds great to me, and absolute bliss every time I play records. Tubes are the only things I have replaced over the 13-14 years of ownership. Experimented with ASR battery phono in early 2000s and Einstein phono later on. I am convinced the Aesthetix will remain for a long time. 

+1 on Tavish.  Though I have limited experience with different stages, I put my Vintage Tavish is the same conversation with my Phonomena II.  The Phono was a great pre, but when it died, I wanted tubes.  The Tavish fit the need.  Though, the last I heard, there is a wait to get one.