As everyone knows, not only the source, amplifier, cables, position, and so on can decide the sound effect, but also the high-grade fuses in the amplifier. What is a pity that the hi-grade fuses is a little expensive. Xindak engineers have empoldered this special fuse. It is made from pure 4N sliver, and there are also silver-gilt on its connection. By testing, you will found the tone is more fluent and clearer.