Since you opted for a tube pre, I strongly recommend a used CAT Ultimate with integrated phono. It is an exceptionally good design and the phono section is excellent as well.
The CAT easily outperforms most pres out there -- used it should be reasonably priced.
IMO, the other thing to upgrade asap would be your DAC.
The CAT easily outperforms most pres out there -- used it should be reasonably priced.
IMO, the other thing to upgrade asap would be your DAC.