Save your money on this snake oil and use a fairly heavy duty stranded lanp cord line. Never heard any differance between most cables (blind test - In AES test facilities)
The best High frequancy cables are from litz cables in new york. BUt thesse are designed to carry high frequancy signals with very low loss becasue they are power cables. Litzwire dot com is the company.
But truely just a starnded heavy duty cable with half decent connectors and keep your length of cable down to a minumum.
THe other thing to watch out for is balancing your impedance to your capacidence with longer lines. Flat foil cables work very good other than going to a litz type of cable. Everybody should use the blind listening test for all audio choices, Just wasting your moeny otherwise.