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In Reply to: RE: AC regenerator through audio rack causing speaker buzz posted by Adriel on July 18, 2009 at 09:22:14
Ok I will try replacing all powercords when they arrive this friday.
However, I am not the only one on the planet who has speaker buzz. There are reports of other brands of ac regenerators, in a system with efficient speakers, and certain amplifiers, that will cause audible speaker buzz.
My best guess is, this ac regenerator puts out a magnetic signature that is somehow amplified by large steel racks and makes its way into the speakers. My new turntable reveals a tonearm/mm cartridge needs 1.5 feet distance to the ac regenerator or buzz occurs.
If I had a dedcated room, the ac regenerator could be located several feet away such that it causes no buzz. But I a forced to put all my equipment against the wall.
The lowest noise location I could find was placing the ac regenerator underneath one of the smaller steel amp racks.
Follow Ups:
I meant the white plastic multi-outlet unit with green LED's that you have connected to the duplex outlet on the wall.
Sometimes these multi-outlet units have internal spike supression circuits and noise filtering circuits that may interact with your AC power conditioner or the way the protective earth is handled.
Try plugging the two power cords that I see in your photo straight into the duplex outlet.
Maybe you already tried this and somehow I didn't see this from your response.
.
Okay, the triple-shielded powercables did nothing for this buzz. Therefore, I was forced to order another ac regenerator, this time from PurePower which unfortunately was several times the price of the Monarchy unit. The PurePower APS lacks the heavy transformers of the Monarchy unit, so I'm hoping for the best.
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