FiiO F9 Pro Hybrid In-Ear Monitors

Description:

**1 Dynamic Driver & 2 Balanced Armatures for Triple helpings of rich

sound**

The F9 Pro utilizes a hybrid design in which each channel is composed of
one dynamic and two balanced armature (BA) drivers. The 9.2mm dynamic driver
is specifically tuned to produce bottomless lows while the two BA drivers
utilizing the American brand knowles’ 30017, which precisely portray extended
upper-mids and highs.

Knowles dual balanced armature TWFK-30017-000

The Knowles dual balanced armature TWFK-30017-000 gives the F9 Pro immense
capabilities in resolving every last detail, all in a truly powerful and
overwhelming presentation of your music – the way it was meant to be heard.

PEK polymer nanocomposite driver for heightened detail

The F9 Pro utilizes a dynamic driver made of PEK (polyether ketone)
polymer nanocomposite, known for not only being tough but also being light.
This allows the F9 Pro’s dynamic driver to be highly capable of producing
quick, detailed, and extended bass.

Scientifically Tuned based on Physics and Psychoacoustics

We achieved maximum performance from the F9 Pro’s drivers by looking to
the laws and principles of physics and psychoacoustics when designing our
product. By doing so, the drivers are able to work in perfect harmony to
achieve a cohesive sound that is absolutely able to reproduce every part of
the sound frequency spectrum – allowing for a frequency response from 15 Hz to
40 kHz.

**Freely switch between balanced and single-ended with standard MMCX

connectors**

The F9 Pro utilizes the standard MMCX connector for its interchangeable
cables, and comes standard with both 2.5mm balanced and 3.5mm si