Hi Jla; The Syn. Res. Master Couplers are excellent at their price-- and well above it I think. I have them on all my major components, and had auditioned six other cords before deciding, including ESP, Electraglide, Shunyata Sidewinder, and some others, but none of those you mention above. I plan to audition the more expensive Syn. Res. Reference for my source components, and would also like to hear some of the mid-priced Shunyatas, but the Master Couplers are so good I'm in no hurry to replace them. Good Luck. Craig.
