FiiO FT1 Pro Open-Back Planar Headphones

The FT1 series is FiiO’s lightweight headphone lineup, designed for comfort and accessibility. The first model, the FT1 closed-back headphone, featured a dynamic driver that delivered lively sound. Now, the series evolves with the FT1 Pro—an open-back model equipped with a planar magnetic driver.

The FT1 Pro features FiiO’s second-generation, self-developed planar driver technology, engineered from the ground up for exceptional sound quality at this price point. Experience high-resolution audio with a spacious and immersive soundstage.

Planar Driver Technology

The FT1 Pro features a fully self-developed planar magnetic driver, meticulously crafted by FiiO from the diaphragm to the patented dual-coating, conductive trace width, and magnetic circuit optimization. Even the standardized bracket fixings have been designed for superior performance, ensuring class-leading sound quality at this price point. Unlike off-the-shelf drivers, this custom-engineered driver seamlessly integrates into a sophisticated acoustic system within each earcup. Despite weighing only 374g, the FT1 Pro houses an impressive 95x86mm driver, effortlessly delivering sound up to 40kHz.

Ultra-Thin 1μm Diaphragm

Achieving a thinner, lighter diaphragm is crucial for planar driver performance. After two years of dedicated research and development, FiiO has engineered an industry-leading 1μm (micrometer) ultra-thin diaphragm using high-performance PET. Even a seemingly small difference—like moving from a 2μm to a 1μm diaphragm—has a noticeable impact on performance at high vibration speeds, directly enhancing sound quality. The FT1 Pro’s ultra-thin diaphragm is exceptionally lightweight, enabling lightning-fast responsiveness, precise ultra-high frequency reproduction, and an expansive dynamic range.

Sapphire + Aluminum Dual-Coating

FiiO’s patented dual-coating system enhances the FT1 Pro’s frequency response, improving resolution and highlighting the distinct characteristics of planar drivers. The first layer, aluminum, is lightweight and highly conductive, reducing impedance, improving power efficiency, and enhancing dynamics. The second layer, sapphire, adds rigidity to the diaphragm, increasing treble clarity and overall transparency for an immersive listening experience.

Uniform Magnetic Field for Precision Sound

The FT1 Pro incorporates FiiO’s innovative uniform magnetic field technology, which counteracts uneven field intensity caused by adjacent magnets. This expands the effective magnetic range, ensuring the planar diaphragm moves with greater uniformity and reduced distortion. As a result, the FT1 Pro delivers an exceptionally refined sound, capturing even the most delicate nuances in your music.

28nm-Grade Manufacturing Process

To achieve the FT1 Pro’s intricate planar driver design, FiiO employs a cutting-edge 28nm-grade manufacturing process. Traditional coating methods lack the necessary precision, so FiiO adopts techniques inspired by semiconductor technology. The conductive trace material is deposited in a vacuum at 6.6 × 10⁻³ pascals and heated to 120°C, transforming it into ionized particles that bond to the ultra-thin 1μm diaphragm. This advanced process optimizes acoustics while enhancing durability and longevity.

Open-Back Design for Natural Sound

Designed for immersive at-home listening, the FT1 Pro features metal mesh earcup covers that allow sound waves to disperse naturally, reducing unwanted resonances. The open-back construction creates an expansive, lifelike soundstage, making it ideal for quieter environments where sonic accuracy matters most.

Optimized Impedance & Sensitivity

Unlike traditional planar magnetic headphones that demand powerful amplification, the FT1 Pro balances performance with accessibility. With a low 20Ω impedance and a sensitivity of 95dB/mW@1kHz, it delivers impressive sound quality even when paired with more affordable headphone amplifiers like the FiiO K11.

Adaptive 3-Axis Headband for Supreme Comfort

Continuing FiiO’s focus on ergonomic design, the FT1 Pro’s adaptive 3-axis headband freely rotates to fit different head sizes. This ensures a snug, comfortable fit with minimal sound leakage, allowing for long listening sessions without discomfort.

Lightweight, Durable Headband Construction

The FT1 Pro’s headband is reinforced with high-quality steel rails for enhanced durability while maintaining a lightweight profile. Precision mechanical construction ensures smooth adjustments, offering an extended 11-click range to accommodate various head sizes. The headband is wrapped in soft lychee leather, providing a premium and comfortable feel.

Breathable Fabric Ear Pads for Extended Comfort

Designed for all-day listening, the FT1 Pro features breathable fabric ear pads that efficiently dissipate heat, preventing discomfort during long sessions. The high-density mesh ensures airflow, while protein leather side panels add a touch of luxury and durability.

Versatile Connectivity with Dual Cables

The FT1 Pro includes two high-quality headphone cables—one with a 3.5mm single-ended termination and another with a 4.4mm balanced termination. Both cables are constructed from oxygen-free, silver-plated copper with 392 strands and a 24AWG thickness, ensuring superior signal transmission. The headphone side features universal 3.5mm TRS jacks, making it easy to switch or upgrade cables in the future.

Premium Storage Case Included

For added convenience, the FT1 Pro comes with a high-quality softshell storage case, providing lightweight protection and easy portability.