FiiO has officially launched the FX25, a seven-driver hybrid in-ear monitor designed for pop music. The device is priced at ¥4999 and is available for purchase as of October 19.

The acoustic architecture of each earpiece consists of one dynamic driver for low frequencies, two Knowles balanced armature drivers for mid-range and high-frequency transition, and four electrostatic drivers for high and ultra-high frequencies.

Each unit weighs approximately 7 grams and features a carbon fiber shell. The design includes a 0.78mm 2-pin detachable cable system, with the package providing interchangeable 3.5mm, 4.4mm, and Type-C DAC plugs.

The FX25 incorporates a new RLC second-order band-stop filter circuit. This system is designed to eliminate resonance peaks caused by driver and cavity harmonics, aiming for a smoother high-frequency response compared to standard RC crossover designs.