I had a demo of the audio sniffer thingy. It really worked. Plugged into outlets and they were quite noisy. Then plugged into a power conditioner and which had barely any noise coming from the sniffer.
How noisy is my line? Audio Prism Noise Sniffer
A friend and audio journalist had this Prism device, and he plugged it into various outlets when I visited him. It gave a clear sense of which outlets were noisy and how effectively his conditioners were helping with noise.
He said these were not made any longer. Does anyone know of another tool like this?
It seems like it could save someone with clean power (or a quiet outlet) a lot of money from conditioners/regenerators which would not necessarily help.