nrg z3Low distortion Hi Fi power supply, more silence and control The AudioQuest NRG Z3 is a 3 conductor power cable designed to reduce mains induced noise and distortion while improving the stability of your electronics. PSC+ (Perfect Surface Copper+) conductors, Semi Solid Concentric geometry, and Direction Controlled Wire help limit strand interaction and contain RF interference. Ideal for bringing greater clarity, micro detail, and coherence to stereo