FiiO FT1 Pro Open-Back Planar Headphones

FIIO-developed core, PRO sound 95x86mm FIIO-developed planar driver
The FT1 Pro is equipped with FIIO’s second generation, self-developed planar driver technology. The planar driver has been designed from the ground-up by FIIO, from the diaphragm, to the patented dual-coating, to the conductive trace width, to the fine-tuning of the magnetic circuit, and even the standardized bracket fixings – all to ensure a true quality driver.

Top-class planar driver 1μm thin diaphragm
Engineers have constantly strived to achieve thinner and lighter diaphragms for planar drivers. After two years of independent research and development, we have created for the FT1 Pro a class-leading 1μm ultra-thin diaphragm, using high-performance PET as the substrate. The difference between even a 2μm and a 1μm diaphragm thickness results in noticeable performance differences when the diaphragm is vibrating at high speeds, which ultimately affects sound quality. The FT1 Pro’s 1μm ultra-thin diaphragm is exceptionally lightweight, allowing it to respond with lightning-quick speed. It faithfully reproduces even subtle sounds in the ultra-high frequency range, as well as providing exceptional dynamic range.

Brilliantly luxurious, dual-layered Sapphire+ Aluminum dual-coating patented technology
The FIIO FT1 Pro employs a newly self-developed technology for its planar driver – a patented dual-coating system. The planar driver uses high-performance PET as the diaphragm substrate and selectively applies sapphire and aluminum to create a dual-coated driver. Such a design enhances the driver’s frequency response across different frequency ranges, improves audio resolution, and allows listeners to fully appreciate the nuanced and unique sound quality of planar drivers. The first coating layer is made of aluminum. Lightweight and conducive, the aluminum coating enhances the traces’ conductivity, helping to reduce the driver’s impedance and power requirements as well as improve its dynamics. The second coating layer is made of sapphire. With its high hardness, the sapphire coating contributes to the diaphragm’s rigidity and enhances treble resolution and overall transparency, and helps the driver to exhibit a unique sound as a bonus.

Balanced distribution, uniform force
The FT1 Pro is equipped with FIIO’s new patented acoustic technology—the uniform magnetic field design, which optimizes the uneven magnetic field intensity caused by adjacent magnets and further expands the magnetic field range. This technology makes the FT1 Pro’s magnetic field more extensive, precise, and balanced, allowing the planar driver diaphragm in that magnetic field to be more evenly stressed. That is, the FT1 Pro planar driver diaphragm moves more evenly with reduced breakup and distortion – leading to a more refined sound that accurately captures even the subtlest of nuances in the music, which is characteristic of high-quality planar drivers.

Advanced technology for advanced sound 28nm-grade process technology
In order to achieve high sound quality with the intricate second generation self-developed planar driver, the driver needs to be manufactured with precision at the nanometer level. Traditional diaphragm coating processes are not precise enough. To have its driver diaphragm manufactured with sufficiently high quality, the FIIO FP3/FT1 Pro’s driver is made using a 28nm-grade process. This technique, inspired by coating technology used within the semiconductor industry, completely isolates the conductive traces material from the surrounding air. The traces material exists in a vacuum state at a pressure of 6.6 × 10⁻³ pascals, and the temperature is raised to 120°C. The traces material is transformed into ionized particles, which then accumulate on an ultra-thin 1 μm film through charge attraction principles. This process creates the desired coating thickness for optimal acoustics and significantly enhances the durability and lifespan of the traces*. Additionally, the FP3/FT1 Pro goes beyond industry standards by applying this complex and rigorous process twice to each diaphragm, resulting in a dual-coated membrane design that delivers exceptional sound quality.

Easy to drive 20Ω high-sensitivity design
The lightweight FT1 Pro aims to bring great planar sound without requiring serious amplification. The low 20Ω impedance combined with the high sensitivity of 112dB/Vrms@1kHz (or 95dB/mW@1kHz) means you can easily get great sound from the FT1 Pro.

7Hz-40kHz frequency response
Wide response range, hear every last detail
The FIIO FT1 Pro is capable of a wide frequency response range from 7Hz-40kHz, allowing you to truly experience even the subtlest of nuanced sounds the planar driver is capable of producing.

Lightweight Body, robust yet practical 374g light weight
While the FT1 Pro features a large, double-sided magnet planar driver, it only weighs about 374g – making it light, comfortable, and easy to carry around.

Sound moves according to you 3-axis adaptive headband
The FT1 Pro inherits the excellent ergonomic design of the FIIO FT series. The 3-axis adaptive headband allows for free rotation at multiple angles. This design accommodates various head sizes and ensures a snug fit on the head for enhanced comfort and minimal sound leakage.