buzzzzz, where did i go wrong?

I've done similar circuit and grounding uprades.The key as others have mentioned is your using the new rods to supplement your existing service ground lowering the overall resistance.Spacing of the rods is important,they should be at least six feet from the service ground and six feet apart and each rod must be tied back(with a separate wire) to the same point in your panel as the service ground.Don't tie the rods together as you want the rods connected in parallel not series.Also you should have an isolated ground on your outlets for each circuit and each ground wire should be connected back to the same point in your panel as your service ground and rods.This is the essence of a star grounded system with ONE low resitance pathway to earth.If your using your fuse connections as a subpanel in some kind of enclosure make sure none of your neutrals are bonded to it.If your using in-line fuses you won't have this concern.

Sean,
I mailed you but I don't think you got it. I think there is a problem. Could you mail me?
Thanks
JD

Ok I think I am getting it. Let me be more specific. The panel and the two rods are separated by about 35 feet. The two rods are about 6 feet from each other. I am going to take one copper wire from each rod to the grounding bar in the main box.
The outlets are still FIM880's which do not have an isolated ground. The conduit is their ground. Should I also use their copper grounding wire and land it to the grounding bar?
About the fuses, they indeed are a subpanel but i am not sure what is meant by the neutrals being bonded to it or not. By the way...I do own a multimeter and I not afraid to use it!....maybe someone could tell me how?
Thanks JD

JD, i'll drop you a line in the morning, kind of late and i'm beat now : )

To start off, try grounding ALL of your ground rods together. That should get rid of your hum. If it does, you either need to replace the FIM's with outlets that isolate the grounds, leave all of the ground rods tied together or move the ground rods to within a few feet of each other.

If tying all the rods does correct the problem, you can also try removing the connection from one rod at a time and see which rod has different potential from the others. It is possible that each rod is different and that you would need to leave them all tied together to solve the problem. Once again, the only way to get around this is to isolate the audio grounds from the house grounds via different "floating" outlets. Sean
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good night,...I am on the night shift!
jd