FiiO FT1 Pro Open-Back Planar Magnetic Wired Hi-Fi Headphones

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.

Specifications

• 95x86mm FiiO- Developed Flat Unit: The FT1 Pro unit measures 95x86mm, a size comparable to flagship heavy-duty flat earphones, yet it weighs only about 374g. Leveraging the advantages of the in-house developed flat unit, the T1 Pro delivers an exceptionally wide lateral soundstage rarely seen in its class, with almost imperceptible boundaries, effortlessly unlocking a full frequency response up to 40kHz.
• 1μm Ultra-Thin Diaphragm: After two years of independent research and development, the FiiO FT1 Pro features a leading 1μm ultra-thin diaphragm, made from PET high-performance substrate. In the microscopic world, even a difference of 2μm versus 1μm in diaphragm thickness leads to significant performance variations under high-speed vibrations, directly affecting the final sound quality.
• Sapphire + Aluminum Dual-Coating Patent Technology: The diaphragm uses a dual-coating of sapphire and aluminum to enhance frequency response across different bands, improving audio resolution and allowing for a more detailed sound from the flat unit. The sapphire coating, known for its high hardness, effectively boosts high-frequency resolution, while the aluminum coating, lightweight in nature, improves the voice coil's conductivity.
• Uniform Magnetic Field Design: The magnetic field strength between adjacent magnets has been optimized to eliminate unevenness, further expanding the magnetic field range. When the flat diaphragm vibrates at high speeds, the FT1 Pro ensures uniform diaphragm amplitude, reducing segmented vibrations and distortion. This results in more refined sound performance, allowing for precise capture of the subtle nuances in the music.
• 28-Nanometer Chip-Level Manufacturing Process: This process, derived from semiconductor industry coating technologies, forms the necessary coating thickness for acoustics and significantly strengthens the durability and lifespan of the conductive coils. Each diaphragm undergoes this process twice to meet the dual-coating diaphragm design, delivering superior sound quality beyond its class.

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