Grounding problem: I'm clueless


Hi folks,

I'm getting a serious buzz/hum through my speakers when listening to vinyl.

Equipment:
-Kenwood KD500 w/Rega RB300 arm and Grado Gold MM cartridge
-Antique Sound Lab Mini Phono tubed phono stage
-Audio Aero Prima hybrid integrated
-Silverline SR15 monitors

The previous owner of the phono stage attached a ground plug to the outboard power supply, he said it got rid of the hum for him. No such luck here. I've tried running a ground cable from the turntable to the preamp, and from the turntable to the power supply. It's quieter when attached to the power supply, but still not really acceptable.

Some more info: power is being filtered through a Shunyata Guardian. Once in a while I'll heard a very faint radio signal through on of the speakers. Not sure if any of that matters, but there it is.

Any advice would be much appreciated.

Thanks!
lousyreeds1

Showing 1 response by zenek_pereszczako7371

Grado Prestige Gold is unshielded cartridge. Unfortunately with DD turntable always to hear hum.
Sorry for my poor english.