When you get 40 to 50 hours on the Modi, it'll be much closer to the final sound. Oh, I should ask what kind of RCA cables you have on the Modi. In my experience anything that is fine strand copper I don't care for. It may seem counter intuitive, but cables based on solid core individually insulated copper are truer to the signal.
Something like Audioquest Forest or Golden Gate, or Morrow Audio MA2 RCA cables should help.
Something like Audioquest Forest or Golden Gate, or Morrow Audio MA2 RCA cables should help.