Electric plug socket for music equipment, has earth pole and signal pole, where earth pole has conductive material and signal pole has another conductive material

摘要

The electric plug socket has an earth pole (2) and a signal pole, where the earth pole has a conductive material and the signal pole has another conductive material. Both conductive materials are different from each other. The former conductive material is a silver-bearing material, and the latter conductive material is a gold bearing material. An independent claim is also included for music equipment.