Audiophile Optimizer or Fidelizer Pro?

[Quadman]

what they said, between the two if its either or then AO.

[Quadman]

Yes, as @JazzDoc2 says, read the manual, if you are uncomfortable with the setup and usage process then maybe consider AFpro.  I was hesitant  when I first read the manual but discovered it was actually much easier to use and setup then I thought.  I use them both with server 19 with a custom shell along with HQP and Roon.