Replace your cartridge. Grados can work in the right system...evidently you don't have one of those.
RF Interferenece and hum on tonearm
As much as I enjoy NPR, I'm having a hard time enjoying it when I use my Denon DP 75 DD turntable, Lustre GST1, and Grado Signature Platinum cartridge. I am running three grounds from the TT system to the preamp:tonearm shield, TT motor, tonearm mounting. The RF only occurs at moderate to high volumes and increases dramatically if I touch the tonearm wand. Touching any other part of the tonearm does not increase the noise.
In addition to the RF interference, I have a hum problem.
The CD player and TT are plugged into an APC power filter. The hum decreased as I added the ground wires. Unplugging the CD, plugging the TT directly into the wall, moving the wires did not change the hum or RF. Moving the tonearm closer to the motor increases th
In addition to the RF interference, I have a hum problem.
The CD player and TT are plugged into an APC power filter. The hum decreased as I added the ground wires. Unplugging the CD, plugging the TT directly into the wall, moving the wires did not change the hum or RF. Moving the tonearm closer to the motor increases th