The apartment has a crappy mains installation, with only a few grounded sockets. I think this is what leads to voltage swings when turning on an LED or fluorescent lamp.
This has always caused some minor issues with any USB audio devices, as in them resetting and stopping audio. This is an apartment-wide issue, it can happen with any lamp or appliance that causes a spike.
Right now I have a Schiit Eitr USB->Coax converter and I’m worried these voltage swings might damage its delicate circuits. Or any of my equipment.
I have all audio gear connected to a power strip that’s surge-protected and even supposed to “attenuate mains fluctuations” (yeah right, I’m sure it competes with power plants at 80$)
Anyway, it’s no help. How can I protect my equipment from such “minor” electrical faults? Should I even be worried or is this just a nuisance?