OP,
There are a few threads on this. As Raul points out it is very difficult to get very low noise in an all tube phono stage. Most phono stages use a SUT or FET for gain in front of the tube amplification. That being said, there is something about an all tube phono stage if your cartridge has enough output to stay above the noise floor.
Aesthetix Io and SPA Nova are all tube phono, and there are others. You should work with your dealer to audition some phono stages before making a selection
There are a few threads on this. As Raul points out it is very difficult to get very low noise in an all tube phono stage. Most phono stages use a SUT or FET for gain in front of the tube amplification. That being said, there is something about an all tube phono stage if your cartridge has enough output to stay above the noise floor.
Aesthetix Io and SPA Nova are all tube phono, and there are others. You should work with your dealer to audition some phono stages before making a selection