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A/C line noise

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papabearjew:
Hi all,
I seem to be picking up some sort of noise that I suspect is coming through the A/C line. It is not constant. Sometimes I'll notice it when the clothes dryer cycles or when I operate my electric lift chair (recliner).  Sometimes I'll hear a popping sound through the speakers for no apparent reason. I do listen to music a lot...pretty much all day long. I have a Carver C-5 preamp feeding a Phase Linear 400 amp...both modded by Vintage HiFi. Any suggestions for an affordable solution?
Thanks,
Brad

Slim-Shaddy:
2 prong to 3 prong converter

papabearjew:
@Slim-Shaddy,
I know the adapters you are referring to but don't understand the suggested application.  Can you please elaborate.
 I am really pushing to get this resolved before June 18th if at all possible.
Any help is greatly appreciated. Tom pointed me in the direction of posting this on the forum.
Thanks,
Brad

Rockman Rock:
Dimmers and motors including reclining chairs can send noise into power line and EMI/RFI into the air. If on the same AC circuit I don't think there is any escape except for filtering or running separate circuit. I've seen simple plug in filters and filter powerstrips but you'd have to make sure they have enough capacity to pass the current required by your amp.

For EMI/RFI, you need tin foil hats. I have a recliner here that if plugged into my separate audio AC circuit it will cause problems with digital playing but not analog. Could be the non-shielded Cat5 inside wall picking something up. Maybe it sends DC spikes into the power line, I dunno. All is well if the chair is plugged into different circuit.

Slim-Shaddy:
The 3 to 2 prong this was something I used when I was in a band and the guitarist was getting shocked. Not sure if it would help, but it's a very cheap solution if it works.

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