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Newby problem with hum

I'm relatively new to this sick and exciting hobby and need some help from the experts. I am having a problem with hum. I think it's a ground loop issue, but not 100% sure. I get it when I'm switched to CDP and even louder when switched to my LP. I start hearing it when the volume control gets to about 12 o'clock and it becomes quite loud at 3 o'clock. Here's my setup...

Music Hall MMF7 w/ Goldring Eroica MC cartridge
Ah! Super Tjoeb CDP
Kimber Hero interconnects
Manley Stingray Integrated amp
Analysis Plus Oval 9 speaker cables
Silverline Sonatas
Chang Lightspeed line filter

Any ideas would be helpful. If it is a ground issue, where should I start?

Thanks!

Steve
smccull
viridian's avatar
viridian
4,184 posts
 
Steve,
I have always found that only one component should be grounded and this has been confirmed by others. In your rig it would be the Manley. All other plugs should have cheaters on them removing the ground. The primary source of hum is multiple ground paths.
bundee1
147 posts
 
DAMN! How loud is it at 3 o'clock? Id honestly like to know.
sugarbrie
3,854 posts
 
The preamp should be a grounded component if your are going to use cheater plugs.
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