I have always been a fan of balanced power. The term "power conditioner" is a generic term in my opinion. Just what does that mean? It sounds like something you apply to your hair after shampoo. I highly recommend the following presentation, not so much for the aforementioned Niagara product but because this engineer comes from Furman, the owner of the market in commercial sound reinforcement systems worldwide. To me, balanced power is essential even with a dedicated line. Research balanced power and please ignore the crazy claims that it is dangerous. I have a balanced power unit and my system is black as can be.
https://www.youtube.com/watch?v=ITkuBgFtTjs
https://www.youtube.com/watch?v=ITkuBgFtTjs