No matter how perfect an AC power source, distortion is added within any AC cable, especially within a stranded cable. Even the most sophisticated filters and power supplies cannot eliminate this cable- caused distortion.
NRG-X cables use Long-Grain Copper (LGC) strands in Semi-Solid Concentric Packed conductors. This physical arrangement, in which strands are packed more tightly and never change position within the bundle, significantly reduces strand interaction distortion. The greater purity and less complicated grain structure within LGC copper further reduces distortion, as does the helical relationship between the conductors. Using these finely finessed cables enables a more engaging, more enjoyable, more effective experience.