FiiO FT1 Pro | Planar Open-Back Headphones

Experience Crystal-Clear Highs, Immersive Soundstage, and Luxurious Comfort with the Innovative Planar Design of the FiiO FT1 Pro Equipped with FiiO developed 95x86mm planar driver Open-back design offers natural sound and a large soundstage Patented Sapphire-Aluminum coating improves audio resolution Plush ear-pads and adjustable headband for long-lasting comfort Includes Silver-Plated Copper cables in 3.5mm + 4.4mm terminations Check out our FiiO 2025 Buyer's Guide here! FT1 Pro The FiiO FT1 Pro is an open-back planar magnetic headphone designed for audiophiles seeking high-fidelity sound. It features a custom-developed 95x86mm planar driver with a 1μm thin diaphragm, utilizing Sapphire and Aluminum dual-coating technology for enhanced treble resolution and overall transparency. The patented uniform magnetic field design and 28nm-grade process technology contribute to its superior audio performance. With a 20Ω impedance and high-sensitivity design, the FT1 Pro is easily driven by various audio sources. Top Class Planar Driver After two years of independent research and development, FiiO created for the FT1 Pro a class-leading 1um ultra-thin diaphragm, using high-performance PET as the substrate. The difference between even a 2um and a 1um diaphragm thickness results in noticeable performance differences when the diaphragm is vibrating at high speeds, which ultimately affects sound quality. The FT1 Pro's 1um 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. Sapphire and Aluminum Dual Coating The FiiO FT1 Pro features a patented dual-coating planar driver technology, combining aluminum for enhanced conductivity and dynamics with sapphire for rigidity and treble resolution. Using a high-performance PET diaphragm substrate, this design improves frequency response, audio resolution, and transparency, delivering the nuanced, dynamic sound unique to planar drivers. Acoustic Technology The FT1 Pro introduces FiiO’s patented uniform magnetic field design, a breakthrough in acoustic technology that optimizes uneven magnetic field intensity caused by adjacent magnets while expanding the magnetic field range. This innovation creates a more extensive, precise, and balanced magnetic field, ensuring the planar driver diaphragm is evenly stressed. As a result, the diaphragm moves with greater consistency, reducing distortion and breakup. The outcome is a refined, highly detailed sound that captures the subtlest nuances in music—hallmarks of premium planar drivers. Additional Features Easy to Drive Design The low 20ohm impedance combined with the high sensitivity of 112dB/Vrms@1kHz means you can easily get great sound from the FT1 Pro. 7Hz-40kHz Frequency Response The 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 and Luxurious Design The headband is crafted with high-quality steel sides, ensuring exceptional durability while maintaining a lightweight and portable design. Additionally, the 3-axis adaptive headband allows for rotation at multiple angles. Silver-Plated Copper Cables The FiiO FT1 Pro includes two 1.5m cables—3.5mm single-ended and 4.4mm balanced—crafted from 392-strand oxygen-free copper-plated silver for transparent, robust sound and broad device compatibility. Specifications Driver: Planar Magnetic Impedance: 20Ω Sensitivity: 112dB/Vrms (@1kHz) / 95dB/mW (@1kHz) Frequency Response: 7Hz-40kHz Weight: 374g (without cable) Cable Material: Silver-Plated Oxygen-free Copper Cable Length: 150cm In the Box FiiO FT1 Pro Headphones 4.4mm Balanced cable 3.5mm Single-ended cable 3.5mm to 6.3mm adapter Storage Case Quick Start Guide