Low incoming voltage

@ CLEEDS, +1

I use an Elgar industrial power conditioner (6006b) that specifically addresses this problem and makes my stereo sound much better in the process. You have to buy used unfortunately, but read around and you'll see universal positive reviews. It does need to be in another room though, as the transformer and fan are industrial. I interrupt my dedicated line in the crawlspace and it sits on a shelf down there.

Some people are similarly running on these new high power lithium ion camping units that can run an entire system with great results for reasonable sums of money.

https://forum.audiogon.com/discussions/sell-your-cables-and-conditioners-affordable-lithium-is-here?...

 The Furman has no fans, but a slight hum, and slight clicking sound as it adjusts.  Available new. :)

Keep calling the electrical company. They allowed these cannabis factories to pop up in an area without sufficient supply lines.  If they're going to ration service and you were there first raise hell on up the ladder as far as the regulatory agency. 

Good read if you want more info:
https://www.quora.com/Is-the-power-system-in-the-US-technically-110-115-or-120VAC-How-about-220-or-is-it-240-or-235VAC