@xrayz, You're right about the average electrician, they don't understand the complexities of power in an audio system. Mine said he knew all about home theater and not to worry. He was competent, but in the end his installation was not optimal for a HiFi system. Read the thread I started asking for advise on proper installation for audio...
https://forum.audiogon.com/discussions/dedicated-line-advise
Romex is a manufacturer, but the important thing is to use the same cable design; copper, 3 conductor, solid (not stranded) wire.
https://forum.audiogon.com/discussions/dedicated-line-advise
Romex is a manufacturer, but the important thing is to use the same cable design; copper, 3 conductor, solid (not stranded) wire.

