Any one try the new Synergistic Research BLUE UEF Duplex receptacle?

Differences in other brands, Oyaide for example are the type of plating used, the base copper too, The copper may be phosphore-bronze or beryillium-copper. The plating can be Rhodium over silver, gold over gold, palladium with platinum. Rather complex and right on any Oyaide page, fully explained.          
The Furutech are all pure copper  with bare copper,, plated with gold, or rhodium. Furutech used to. or elsewhere have silver plated outlets too, but no longer in USA. They also clearly tell you what you are getting.           
(I guess buying a pig in a poke excites some folks??? ) joke son, it's a joke!

Off subject.
Has any tried the Audioquest NRG Edison Duplex Wall Outlet?

It is not just a rebranded mass produced outlet.
https://www.audioquest.com/ac-power/ac-power-outlets/nrg-edison-duplex-wall-outlet

Internal contacts

Beryllium-Copper Base Metal Provides superior spring tension and long-lasting, low-impedance AC power connections. Typical materials such as brass, or even high-purity copper aided by spring and wedge devices, simply cannot equal the unparalleled retention strength of high-mass beryllium-copper.

https://en.wikipedia.org/wiki/Beryllium_copper

Beryllium copper (BeCu), also known as copper beryllium (CuBe), beryllium bronze and spring copper, is a copper alloy with 0.5—3% beryllium and sometimes other elements. Beryllium copper combines high strength with non-magnetic and non-sparking qualities. It has excellent metalworking, forming and machining properties. It has many specialized applications in tools for hazardous environments, musical instruments, precision measurement devices, bullets, and aerospace. Beryllium alloys present a toxic inhalation hazard during manufacture.

My son gave me one recently for my birthday. At present, for about a week now, I have it feeding the refrigerator. No complaints so far from the frig.


Here’s a link of a seller that shows a close up look of the outlet. 
https://www.audioadvisor.com/prodinfo.asp?number=AQNRGEDWO&variation=20AMP

.

Interesting...thanks for the information jea48 :-)

@jea48

The Audioquest duplex that you referenced looks to have similar construction to the Cardas 4181US duplex with features like Beryllium Copper contacts, plated with Rhodium over Silver. The Audioquest duplex is only plated with silver but it includes a wall plate.

http://www.soniccraft.com/datasheets/Cardas_4181US_Instructions.pdf

From reading the last few weeks entries. The one thing which stands out is the question of ’what do they do" (AC duplex outlets) :to the sound"
The main thing my 17 added Furutech duplex (Ten GTX-D Gold, seven GTX NCF Rhodium) did was increase clarity way beyond my expectations.
The main way for me to express that is to say Rock vocals via my speakers are as clear as when listening to headphones.. Which definitely not the case prior.
The Duplex in conjunction with other power stuff.. Not just them alone. but they are a main factor in it.