The wire is made of multi-strand electrum wire and multi-strand brass wire without oxidization by intertwisting the two kinds of wire together by using a special technology, among which, the electrum wire is made by uniform mixing 5% 4N bullion and 95% 4N argentine together under fusion state and smelting by using the most advanced vacuum smelting technology. This kind of wire has a very high bearing capacity for current and a high speed of transmission, with best isolation between wires. A metal shielding mesh with a argentine coat is specially designed in the exterior of the wire, so as to prevent the bad influence to a great extent caused by the Hertzian waves from the outside, and improve the pureness when repaying music. The superior power plug selected is better to ensure good connection with the socket. The audition shows that the bearing capacity of current is very high in the wire, it has obvious progress in the acoustic fidelity and identifying capability, the music is clearer. The whole frequency reflects quickly, sound field is magnificent; especially the low frequency is deeper with better flexibility.