The Chord Ground ARAY Noise Reduction Device is designed to negate noise from unused sockets on your AV & Hi Fi components for a clean audio signal. The cylindrical design of the aluminium Ground ARAY features thick walls & provides a low impedance high-bandwidth route for high-frequency signals to pass into. The BNC connector also features the latest Chor Alloy plating for smooth conductivity. This pulls noise from the host equipment in an ideal noise-free signal path.