The AudioQuest NRG-Z3 cables use direction-controlled Perfect-Surface Copper (PSC) strands in a Semi-Solid Concentric conductor arrangement in which strands are packed more tightly and never change position within the bundle. This construction significantly reduces strand interaction distortion. The extremely pure and smooth-surface PSC conductors minimize distortion caused by grain boundaries which exist in any metal conductor.
Semi-solid concentric long-grain copper (LGC) conductors
Silver-plated drain wires
Zero characteristic impedance