Solid Perfect-Surface Copper+ (PSC+) Conductors ^^ Nitrogen-Injected Hard-Cell Foam Insulation ^^ Carbon-Based 3-Layer Noise-Dissipation System (NDS) ^^ Triple-Balanced Geometry ^^ Cold-Welded Hanging-Silver Directly Over Pure Purple Copper Plugs, AUDIOQUEST - MACKENZIE RCA ( 1.5 m), 1, 5 m