I have the same problem with RF noise between a Kora Eclipse pre amp and my Music Hall MMF7 turntable. I found that shielding the interconnects work the best, but still does not completely remove RFI.
After getting fed up, I bought an ARC PH3 phono preamp. Connecting it to the line input on the Kora Eclipse, the TT is dead quiet now.
After getting fed up, I bought an ARC PH3 phono preamp. Connecting it to the line input on the Kora Eclipse, the TT is dead quiet now.