Power Conditioners

I have installed dedicated circuits in my current house and in another previous home in the Midwest. In each case they made a difference my non -audiophile wife could hear.

However, I am now using a lead -acid battery generator and it is much better. It generates a perfect 60hz sine wave. The model i use is a Goal Zero Yeti1250. I would have preferred one of their lithium -ion generators because they are so much lighter.

Based on this experience I should have saved the $$$ and just gone with the regenerator.

This should be all you would ever need. Balanced power and the best surge protection.......

https://www.furmanpower.com/product/20a-prestige-symmetrically-balanced-power-conditioner-P-2400%20I...

Knowing this is an older thread l’ll still make a late suggestion even though you may have made a purchase already. The inexpensive but good WAudio AC Power Purifier is very effective. I would recommend only for use with front end gear (DAC, CD Player, maybe turntable) - not an amp. I use mine with my DAC. Also, Amazon allows 30 day returns and I think the device is a great value.  https://www.amazon.com/gp/product/B00XWL2VVK/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

@foster_9  Thanks for the suggestion. I'll save it for future reference. Much appreciated.

Use the cheap ones for cell phone chargers, and the better constructed ones for your audio components. Make sure you run them in for a full day or so with a fan, TV or other appliance, then do several listening tests. The power conditioner may sound good with some components but not others. Verify for yourself. You may very well end up with one brand for the source components and another for the amps or subwoofer. 
If you use a surge suppressor, plug that in closest to the breaker panel, if possible.