Custom terminated by Future Shop's engineers, the AudioQuest Mackenzie utilises AudioQuests Solid Perfect-Surface Copper+ (PSC+) for greatly improved dynamics and reduced distortions for a cleaner sound signature. The smoother surface on the solid conductors lowers distortion and produces higher performance.

Custom terminated by Future Shop's engineers, the AudioQuest Red River offers one of the best performances for its value with the introduction of Long-Grain Copper. This alternative to Oxygen-Free Copper introduces fewer impurities and smoother boundaries, resulting in greatly improved performance.