The idea behind developing plugs that surpass all others in design and material was based on a simple question. Why bother perfecting cables if the plugs take away from their performance? After all, the cable can't let you hear all of the music if it’s losing information at the connection. Enter the patented Silver-Tube Plug (U.S. Patent #5,413,503). With silver-clad tubular OFC contacts, DuPont Teflon insulators and a proprietary silicone tension band for a perfect grip, Silver-Tube plugs provide the highest conductivity of any RCA plugs in the world.