SRBN designates a specific plating material used in Oyaide’s banana plugs. This material is Super Rhodium over Beryllium Copper. Beryllium copper provides excellent conductivity and springiness for a secure connection, while the rhodium plating offers enhanced durability and resistance to corrosion. As an example, certain Oyaide banana plug models will specify SRBN in their product description, indicating this particular plating combination.
The implementation of this plating structure delivers several key advantages. The inherent conductivity of beryllium copper ensures optimal signal transfer. Rhodium plating acts as a protective barrier, significantly extending the lifespan of the connector and preserving signal integrity over time. Historically, manufacturers have experimented with different metals and plating techniques to improve audio connector performance; the utilization of this specialized plating represents a refined approach to balancing conductivity, durability, and signal fidelity.