Audiophile AC Outlets

A friend and myself did a shootout plugging my amp into 
a double ( ! ) cryro'd hospital grade , 
a lower grade Pangea ,
a P.S. Audio PPC 
and an Audioquest NRG Edison which was the winner .
We to our ears we defiantly heard differences . 
So depending on your budget , I sure that there are others that would equal and maybe surpass the Audioquest but at least you have information from multiple forum responders to try an outlet upgrade .
Good Luck

I installed a Cardas outlet after replacing my older Power Wedge with a Shunyata Venom Power Strip. Could here the difference immediately. My system sounded more transparent.

I installed an Oyaide R1 about 15-18 yrs ago and haven't looked back. Tried an Arrow Hart before that. It was an improvement over the cheap outlets I had previous. But the R1 was a big improvement. 

Installing a 20A or 30A dedicated line may be as beneficial as an audiophile duplex. Highly recommended if you have easy access to route the cable. If you drill the holes and pull the cable yourself, as well as supply your audiophile duplex and the correct circuit breaker for your brand of breaker box, an electrician should be able to complete the job in less than an hour. Or you can study YouTubes and do it yourself. Your local codes may allow for installation of a gang box directly on the floor (rather than in the wall) which makes the job easier and you may find upward facing outlets much easier to use than horizontal ones.