The Audio Quest Mackenzie XLR cable takes audio clarity & performance to new heights. It incorporates Solid Perfect-Surface Copper Plus (PSC+) a superior grade of copper conductor & employs the same impressive machining process as PSC effectively eliminating unwanted noise & resonance from your audio signal. Furthermore the Mackenzie range features upgraded connectors with Hanging Silver over Pure violet Copper terminals ensuring a clean connection & removing impurities that can affect the signal quality. in addition Mackenzie separates the positive & negative polarities into two individual runs of cables each with separate exterior jackets. This configuration significantly reduces cross talk & contamination between polarities enhancing isolation.