At one point about 18 years ago, Grover chose silver which was a mistake except with his equipment at the time. About 13 years ago, I purchased EAR gear and he decided copper was the thing and designed very good cables since then (the EAR gear really liked his cables post copper). He added silver as we tried the cables on EAR, custom tube gear and other customers gear. As I said, there is a difference between adding a 26 versus a 28 gauge silver wire, (with equipment which can resolve the differences). His new Pharoah line adds a few silver wires in the positive which results in a more open, spacious yet tonally rich sound. He has many design features which are noted on his site but not the separate positive and negative teflon tube he uses now to reduce the impedance. No brittle or brightness from his cables using a soupcon of silver (unlike 18 years ago which were all silver).
Most of my audio friends use Synergistic Research Blue fuses (after using the Blacks) for a big increase in SQ yet we use tube gear.
Most of my audio friends use Synergistic Research Blue fuses (after using the Blacks) for a big increase in SQ yet we use tube gear.