I never knew my condo suffers from power surges until I installed two Powerlink line-interactive UPS in the room.

They will switch to battery power whenever they detect a surge, and they make a racket beeping doing it. I Zoom for work a lot, so I beh tahan edy...

Powerlink tech support suggests plugging both UPS units into an AVR to stop them from beeping.

No wonder I had 3 PSUs die on me in the past. My home theater AV receiver so died... I need to get an AVR for the stuff my living room too...