Ideal for video displays powered speakers and all electronics NRG-Z3 (3-pole) cables use direction-controlled Perfect-Surface Copper (PSC) conductors in a Semi-Solid Concentric arrangement in which the individual copper strands are packed more tightly and never change position within the bundle. This construction significantly reduces strand interaction distortion. The astonishingly smooth and pure Perfect-Surface conductors minimize distortion caused by grain boundaries and surface discontinuities that exist in any metal conductor.