grado hum


so I just added a grado gold to my music hall 2.1. On my headphones ( through the belari preamp) it sounded great, but then I was rocking out loud style on my monitors and I heard it...the hum I thought I had lost when I upgraded to the 2.1. Anyway the hum is really only present at loud levels, but I was wondering what you folks thought: what can I do to get rid of this? Should I get a new cartridge? If so, which one?
roggae

Showing 2 responses by thsalmon

I don't know your budget, but I'd consider the new ZuAudio modified Denon D-103 for $399. Just make sure you phonostage has enough gain for a moving coil cartridge.
It could be a ground loop or incompletely grounded tonearm cable. Check your ground lead on the tonearm cable first. If it still hums, try lifting one of the ground leads from the cartridge. Your Music Hall TT might also have the same problems as rega TTs have with Grados due to magnetic interence from the motor.