This is a well-regarded phono pre that’d likely be a significant improvement…
https://www.audiogon.com/listings/lisbf0fc-lehmann-black-cube-seii-phono-preamp-phono
If you can stretch a bit this would be at a much higher level…
Best of luck.
Rogue Audio Sphinx V3 Integrated Amplifier / Separate Phono Preamp
I have a Rogue Audio Sphinx V3 Integrated Amplifier with a built-in phone amp. I'm having an emotional desire to upgrade to a separate phono preamp based on Paul McGowan, of PS Audio, recent post saying it was the most important part of an audio system..What budget do I need to have to improve what I currently have and any suggestions?