I now have three weeks on a Synergistic Research Blue duplex outlet.
It replaces a SR Black outlet that powers my audio system. The sound is improved with a more 3D effect to the sound stage and an increase in texture to the notes. Importantly there is no sense of damping or masking of information. I do not hear any brightness or thinness like that I hear in the Furutech GTX-R outlet.
I have spent a lot of time evaluating wall outlets including the Oyaide R-1, PS Audio Premier Outlet, PS Audio Audio Grade Outlet, Furutech GTX-R, earlier other Furutech outlets, Synergistic Research Red, and the Synergistic Research Black. Each outlet imparts a sound to the music. All are significantly better than a standard house construction outlet. I think all are priced fairly except the Oyaide R-1 which I do think is overpriced.
Deciding on which outlet to use to optimize one's system is time consuming and expensive. If you want the best sound for most systems, I do think The Synergistic Blue Outlet is the answer. The Red outlet has more Grit and a more Forward presentation. Compared to the Red, the Black has a bigger soundstage and a more relaxed musical flow. The Blue seems to achieve the positive aspects of both the Red and Black outlets.
I do like the Synergistic Research policy of the 30 day trial and return for refund. No restocking fee, no store credit, no hassle.
If working on a limited budget I would consider ordering two different outlets and after breaking each in for 10 days, do some serious comparing. Send the other outlet back.
If on a limited time to evaluate and you want one of the best sounding outlets available, order the Synergistic Research Blue outlet and then sit back and listen to great sounding music.
David Pritchard