Set of four banana plugs for soldering, diameter 4 mm, gold-plated copper-BerylliumBanana plugs made from special beryllium copper foil and then gold plated. The beryllium gives the copper the spring tension necessary to ensure high contact pressure when in contact with a socket and therefore guarantee the security of the connection. The acoustic benefits of copper remain largely unchanged. No review for this product, be the first to place your review. |