The best solution for you if turntable is so far away from the rest of the system is balanced XLR interconnect cables from your phono stage to your amp. Simply put your phono stage with balanced output near turntable and run balanced interconnecs (can be very long) to your amp balanced input.
If you don’t have gear with balanced output/input then you can’t use long length cables (they must be less than a few meters).
Go balanced! And you can connect your analog even from the next room.