The FiiO FH9 is specially tuned to create an incredibly powerful and balanced low-end response. The FiiO FH9 comes with three interchangeable sound filters, each with its own attenuation and density. They help to slightly adjust the sound, and can be used according to the user's preferences. The pair comes with a red filter to enhance the bass response, a green filter for a transparent and balanced sound, and a black filter for detailed high-resolution sound.
The FiiO FH9 comes with a high-purity monocrystalline silver cable with 9 strands of 28 wires each, for a total of 224 wires. Each wire is individually insulated. They are braided together in a Litz pattern. It provides superior audio signal characteristics with ultra-low internal signal resistance. It has interchangeable 4.4mm, 3.5mm and 2.5mm end plugs included in the package.
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