The QED Signature Audio 40 not only celebrates forty years of innovation by the UKs best cable manufacturers but its designed with the very best hi-fi equipment in mind. Lavishly indulgent materials are used here; pure silver-plated OFC conductors Teflon™ dielectrics Rhodium-plated RCA plugs. If money isnt really an obstacle & you simply desire the best then Signature Audio 40 is a cable that will deliver pure satisfaction.