Some of these comments are just hilarious. Expectation bias? My expectation is no outlet, fuse, speaker cable, or anything else made basically out of wire can possibly be any good. My expectation is heavily biased towards being able to get great sound cheap. The last thing I want to do is find something as silly as an outlet is gonna be worth a couple hundred bucks. My expectation bias is its all snake oil, and my expectation is I am far from being alone in this. Oh, and when buying something with a 30 day no questions asked return guarantee my expectation is heavily biased towards them honoring the guarantee.
If in spite of all that the darn thing sounds so freaking good that instead of sending it back I have to start figuring out where more of them can go, well there could be many reasons for that but the last one on Earth is expectation bias.
This however is what passes as logic- at least among people who have never actually compared and so have no idea what they're talking about.
There's a whole segment of audio devoted to making really sexy looking stuff that sounds like crap. Half the industry I bet. Judge not by how it looks jazzy but how it sounds. Be shocked if you aren't floored by how much difference that little outlet makes. Be even more shocked as time goes by and you notice its actually even sounding better and better as it burns in. Or if not, send it back. Save a lot of money. Not only on this but all the other stuff you won't be able to hear any difference from.
I doubt very much this will happen.
Besides, Synergistic Research is so good, and so confident of being so good, and so concerned with you getting good results and being happy, that even if for some reason you decide its not all that I bet all you have to do is explain the situation and they will be happy to take it back.
More likely, I think we will be reading your post about how puzzled you are and trying to understand how a lowly wall outlet can make so much difference. (Hint: yes, quantum tunneling really does work.)