nrg z2More control and silence for your electronics The AudioQuest NRG Z2 is a power cable designed to improve the quality of power to A V sources and devices by reducing the noise that can dirty audio and video. Its construction with PSC+ (Perfect Surface Copper+) conductors, Semi Solid Concentric geometry and Direction Controlled control helps limit micro distortions due to the interaction between strands, promoting cleaner listening and a more stable