What is best as wall plug : HMS Furutech Oyaide please

There is a very long history of receptacles used for audio applications. There is no mystery, no hocus locus, and no doubt that the audiophile grade receptacles that have appeared during the past twenty five years are generally better than stock receptacles, sometimes far better. Hospital grade outlets have always taken a back seat to audiophile grade outlets. The same goes for power cord plugs and power cords. Hel-loo! No matter how much you have in the end you would have had even more if you started out with more.

I used common wall AC duplex for many years and was totally happy with them. My personal favorite was Pass & Seymour brand heavy duty 20amp. Other like Hubble hospital. (though many say the current Hubble Hospital are not any better anymore).          
Then the 'middle' priced duplex: Cryoed, Acme silver.. Several in the $50 range. And then the Oyaide and Frutech at $80 to $280.As for buying them? I would say the op would be happy with a $6 Pass & Seymour duplex.  
For plugs. I used to like Wattgate. but they are just basic plugs. At $13 for the male Edison type, and $20 for the IEC. they are entry level.  
IMO to actually buy the expensive separate plugs from Furutech or Oyaide, the cost plus wire in just makes no sense (from a 'bang for your buck' perspective) ... Go BUY a fully finished aftermarket power cord. Shuyata, Pangea. Some low cost entry powercord. Unless you just have to try them out..

I use these and I am very leased with them.
 http://voodoocable.net/product/voodoo-ubbell-audio-grade-ac-outlet/

You could also go with Porter Ports sold on this site. They are a cryo treated Hospital Grade Hubble if I am not mistaken. 

I have used Pass & Seymour in the past and they work well.

Chuck 

auxinput mentions outlets as tone controls. One thing I have found since I went to all Furutech duplex, is that common brass outlet parts/plugs (with no plating) are actually pretty bad! They harm the sound. You never know this until you are rid of them! 
Having gotten rid of them, then trying some, yikes! they are terrible. naturally only in a tiny audiophile ear killing way. (normal folks would never notice anything different IMO).The other thing is I originally liked the gold plated Furutech GTX better ... at first. but as time goes on(for weeks for some new duplex) I am happier with the sound of equipment plugged into the Rhodium GTX NCF duplex. Just a little better detail, tiny bit smoother highs.( I cannot say if this is due to the NCF. Since no gold Furutech Duplex use it yet.)