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Distortion on the Power Line

I have a couple of PS Audio Power Plants.
The distortion off the wall has typically been 3.5 to  4.0.  For the last week it has been over 7%.  I checked around the house and can see no changes.  Anyone have any ideas what it is?  Have Russian Hackers moved in next door?  People huddling at home on their computers?

sm2727
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cleeds
5,967 posts
 
three_easy_payments
So let's say you correctly identify neighbor's A/C or solar panels as the culprit. What's the point? 
The point is that that you would then know the problem is not with your service entrance or from something inside your home.
three_easy_payments's avatar
three_easy_payments
2,097 posts
 
@cleeds

Don’t disagree but it seems like instead of guessing about all your neighbor’s potential sources that the best thing would be to do a process of elimination within your own home. Just seems odd all these random guesses about issues outside your home that aren’t actionable.
heaudio123
689 posts
 
The best thing would be to determine if it is your own home our outside ... hence the 0 cost, quick method of figuring it out I described above. If you determine its outside your house you may have a remedy with the power company so yes it is actionable.
ditusa's avatar
ditusa
1,892 posts
 
greetings! I believe any good quality power amp with a regulated power supply should pretty much make AC line distortion a non-issue...
don't you think the average high quality loudspeaker produces 10-15% distortion below 100 hertz/95 decibels anyways...?
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