The RC-101G from Viborg are excellent RCA subbases, ideal for very high quality DIY assemblies. These incorporate a pure copper conductor to provide optimum signal conductivity. In the same perspective of maximizing the signal quality but also protecting the connector from oxidation, the contacts of the connectors have a triple plating Copper OFC, Silver and Gold. In addition, the connector has Nylon and Teflon insulation to protect the signal from potential interference.