RF Router MkIII

About the RF Router MkIII

The Russ Andrews RF Router MkIII is a plug-in grounding accessory for hi-fi systems, designed to give radio-frequency noise picked up by the metal casework of connected components a path to ground rather than letting it travel back through the audio signal path. It is a passive device, with no internal electronics, switches, or filtering circuitry of its own. Russ Andrews classifies it separately from its mains blocks and mains-filtering distribution units, positioning it as a grounding tool used alongside those products rather than in place of them. The MkIII is the third revision of the design and has since been discontinued.