Why not use copper RCA plugs, as opposed to low conductivity brass with silver plating and rhodium flash?
A.) The reason for brass is simple, you must keep the connector as much like the conductor that feeds it as possible. In the case of our RCA connectors, low current high impedance transfers are best served by small conductors. Large cross-section conductors ring and are of no positive value. Our RCA’s conductor is essentially a thin silver tube (the plating) protected with a Rhodium surface, the low conductivity brass is simply good structure. In the case of speaker spades we use thick, ultra pure copper with a silver/rhodium plate to suit the high current, low impedance application.
