Silver, which in its pure, free elemental form is found in the Earth’s crust, is highly prized for its highest electrical and thermal conductivity as well as reflectivity of any metal. It is precisely for this reason that FiiO’s flagship cable adopts this material as its core-more specifically, monocrystalline pure silver. Compared to common silver and 925 jewelry silver, the monocrystalline pure silver used in FiiO’s earphone cable is of higher silver purity and thus has better conductivity. This means less loss when transmitting audio signals over the cable, so that significantly more details are resolved and for a purer audio experience compared to silver-plated copper and even other typical pure silver cables.
FiiO’s upgrade earphone cable is made of braided Litz wires. Litz wires were specially chosen as each wire in the braid is electrically isolated from each other, greatly minimizing the adverse “skin” and “proximity” effects. This results in a much purer signal and an improvement to frequency response that will even surprise the most discerning music lovers.

4.4mm balanced: Commonly used in music players like the FiiO M11, various Sony models, and others.