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Problem with AC and how to solve it

I have a problem with the voltage at my country home. It's either too high or too low, I'm not sure. The result is that my amps are buzzing, sometimes so loud that I can hear the buzz from my listening chair, witch is some 12 feet away. This buzz is annoying but I could live with it if it didn't affect the sound. Saddly enough, it does. Has anyone been exposed to that problem and if so, have you found any solution.

My amps are Classé's CAM-200 monoblocks. They are dead quiet when the voltage is ok.
siegfried

Showing 2 responses by ngjockey

ngjockey
1,042 posts
 
BigTee had one of the best responses I've read on the site. I remember a halogen standing lamp that had me convinced it was a ground loop and a single misplaced power cord too close to an interconnect.

Consider getting an electrician to test your home's electrical. If there is a problem, I saw a 5KVA 110 volt regulator on Ebay for a ridiculously good price but shipping would be expensive for the 250 lbs. That's almost 50 amps and could handle most of the house.

If the problem is dirty power from within the house and it can't be turned off, another way to go is isolation transformers. Digital gear is prone to causing electrical noise.
ngjockey
1,042 posts
 
The mechanical noise of a transformer may not affect the electrical at all unless it is the noise is caused by severe overloading In that case, current can vary. Roughly 50% of transformers hum naturally or because of the poor quality of electricity they are supplied.

If the noise is physically transmitted through the wire, like cans and string, contact the utility and request(demand?) a solution.

You have a request for information about RFI? Radio frequency intererence is generated by most electronics but more so by high frequency devices such as digital and video. It is transmitted through the air as opposed to EMI, which is transmitted through wires.

http://www.arrl.org/tis/info/rfigen.html
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