Major announcement!

[GuillaumeB]

Congratulations Guillaume. If only this was a few months earlier I bought two Sigmas from the usa and use uk adaptors !

Thanks! 

Have you considered fitting US sockets? I have Furutech GTX-Ds here. Actually Shunyata gave me some of their US outlets to try so I will replace one to see if it makes a difference. 

PS - I wouldn't condone doing this without the approval of your electrician! Mine only agreed to it with a 10A RCBO at the consumer unit, and each circuit is dedicated. Safety comes first!

Guillaume

Am I right in thinking that the US connectors have no fuse in line on the live side?  I was toying with the idea of using 15A UK outlets and plugs (which have no fuse protection) to see if there was any step up in SQ. In my mind, the fuse has to be the weakest link in the chain. It's all very well using cables as thick as your wrist when the juice has to go through a fuse with a tiny piece of wire inside it. Does that make sense?

Yes correct - no fuses on US cables. Or Schuko ones for that matter.

The fuse is definitely the big weak link in the UK power cord and upgrading these could lead to some gains. Having said that every conductor and contact junction is a potential weak link; basically everything matters with transient current delivery. 

Once again you should never sacrifice fire and electrical safety for the sake of a trivial sonic gain.  You could use 15A rated outlets and plugs but that should only be done under the supervision of a qualified electrician.

Guillaume