first cable that made a difference was Shunyata Alpha. best cables are litz and silver. very soft silver ime.
more broadly though why is it that Audigon has more than its fair share of theory based cable deniers? like this is pretty straight forward - borrow a cable from a dealer and listen to it. instead all of these people with science backgrounds wanna type novels? i mean - you have ears - and great american customer service from brick and mortar stores - so go borrow a cable and hear it. you have nothing to lose and everything to gain. either you will get to enjoy better sounding music or you will have empirical evidence to better dispute cable boosters.