Remember that you should do every receptacle in your system (wall, line conditioner etc.) In my opinion the PS Audio can be bettered for about $10 U.S. (providing you don't need a 20 amp receptacle) with a Hubbell HBL 5262. Cryoed versions of the Hubbells are worth the extra $$ whether you go with the Porter Ports or the Audioexcellence/World Power 5362. My preference is for a receptacle with non-plated contacts, which all 3 of the above have.
Fancy wall plugs?
I have read a few articles on high-grade power outlets, such as PS Audio. My question is do you need to spend money on PS Audio or can you get the same results with a high-grade outlet like a Hubbel or Leviton hospital grade. Also which is the best to use, 15amp wiring or 20 amp to the fuse box.