FiiO F9 PRO Triple Drive IEM launched in India at price of MRP Rs. 12,990. The F9 PRO is a hybrid headphone with 9.2mm dynamic driver. It consists Knowles dual balanced armature TWFK-30017-000; one dynamic to produce bottomless lows and two balanced armature drivers portray extended upper-mids and highs.
The F9 Pro frequency response is between 15 Hz to 40 kHz.
PEK polymer nanocomposite driver of F9 PRO uses the MMCX connector for its interchangeable cables and comes with both 2.5mm and 3.5mm single-ended cables.
The 2.5mm balanced cable is made of silver-plated copper wire with separate wires for left and right channel. While the 3.5mm single-ended cable comes with a full set of in-line controls capable of playing/pausing songs, switching tracks, volume adjustment, and even calls with its high-quality microphone. To provide a meticulous look the headphones are embellished with red and blue at the channel ends.