Great to know Herb is an electrician.

I use all the methods here, including the Kill-a-Watt to determine amperage draw, and the $8 tester. I have a bunch and travel with a tester, and check all outlets at a gig for correct wiring before ever plugging in.

To avoid ground loop, it is actually better to run all your audio equipment on the same outlet if you can (get a Furman power strip), and at least the same circuit.

And do whatever you have to do to remove anything that's a big current draw, especially an intermittent one. Absolutely have no refrigerators, air conditioners, hair dryers etc. on the same circuit with your studio. This is to avoid clicks and pops in your recording, as well as effect of the current draw.

When the session is done, to save power overall, Bob is right - watch out for devices that draw standby power when off; your PC and its peripherals is one of the worst of them.

BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.