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Low level buzzing coming from tweeters.

I now have a low level buzzing coming out of my tweeters even when i am in mute. It happens even with the amp on and preamp off never had this before.Any suggestions would be great.Thanks in advance.
ebm
atmasphere's avatar
atmasphere
11,606 posts
 
FWIW, you are far better off if the ground is tied to the water mains as is traditional. Stakes in the ground tend to be variable, and if the ground connection is indeed on the water mains, the stake in the ground should not be used at all unless all your water connections involve plastic pipes.
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ncarv
983 posts
 
The water main should be iron, as it is an older house (1957). I’ve got the same pole type, but separate, ground for my large portable generator. Another discussion with my electrician. We’ve touched base and he will be coming over to check things out.
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cleeds
5,656 posts
 
atmasphere
... you are far better off if the ground is tied to the water mains as is traditional. Stakes in the ground tend to be variable, and if the ground connection is indeed on the water mains, the stake in the ground should not be used at all unless all your water connections involve plastic pipes
I'm surprised to see Ralph state this. IMO, you are best served by complying with NEC and local codes. That usually requires stakes in the ground bonded to the ground in the service panel.
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ncarv
983 posts
 
@cleeds 
I feel somewhat relieved to hear this, as I have had confidence in my electrician who has done some extensive work for me, including upgrading my electric service, installing a new panel with a built-in transfer switch for my generator along with the outdoor plug for it and ground, as well as the separate ground for the audio system.

As I am not knowledgeable in these matters, I must rely on others for their expertise. The electrician is tentatively scheduled for Monday afternoon.
atmasphere's avatar
atmasphere
11,606 posts
 
IMO, you are best served by complying with NEC and local codes. That usually requires stakes in the ground bonded to the ground in the service panel.
@cleeds Actually I agree 100% with the code thing. Installing non-code grounds is asking for trouble! In some areas, the ground is handled by a stake, but that can be problematic so often metal water pipes are used instead as they can be a more reliable ground (this is code in my town). If a stake is the only ground connection, the problem can be that if its a dry environment, it won't really be a good ground.

I'm more concerned here about installations that I've heard of people doing where they ground a stake in the yard and then run their audio system grounds to it- a Bad Idea IMO/IME.
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