Some years ago went through many large and small AC conditioners through Cable Company lending library. The best, and not by a small margin, for the smaller or single component conditioners was the Audience Adept 1 or 2.
Smaller plug-in AC Purifiers -- Shunyata, iFi, Puron...something else? What do you like?
I like the Shunyata Venom Defender. It does a good job of reducing noise in my outlets.
I'm wondering if others have tried similar, plug in products — such as the Puron Power Filter or the iFi AC Purifier or something else.