I have upgraded my RSA Haley with a Cardas 4181US, a GTX-D NCF, and Oyaide R1. I may replace the R1 with a blue receptacle to find out how it fares vs. a GTX-D NCF.
I am glad the Synergistic Research Black has improved the sound of your system. I do hope you are able to put a Blue outlet in your system at a future date.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.