FiiO FT1

The FiiO FT1 marks a decisive milestone in the evolution of the Chinese brand, previously known for its audiophile players and open-back headphones. This first closed-back over-ear headphone from FiiO combines traditional craftsmanship with acoustic innovations to offer a versatile solution suited for both studio and on-the-go listening. With its solid wood construction, 60mm drivers, and remarkable passive isolation, the FT1 aims to win over demanding audiophiles while remaining user-friendly for a wide audience.

Handcrafted Construction and Exceptional Materials

The FiiO FT1 immediately stands out with its solid American walnut earcups, certified by the FAS (Forest Stewardship Council). This choice is not just aesthetic: walnut offers optimal density to minimize unwanted resonances while providing a warm and natural sound signature. The dense structure of this wood directly contributes to sound quality, especially in the midrange where its organic nature excels.

The assembly reveals meticulous attention to detail, with swiveling earcups for optimal adjustment to different head shapes. The headband, adjustable in 12 positions, features a breathable fabric strap that efficiently distributes the headphone’s 340-gram weight. This attention to detail extends to the earpads, made from a breathable synthetic material that prevents heat buildup during long listening sessions.

Proprietary Acoustic Innovations

The technical core of the FT1 is based on several innovations developed specifically for this model. The U-shaped acoustic damping tube is the most distinctive element: beyond improving passive isolation, it channels sound energy along a precisely calculated length and angle. This geometry increases air viscosity inside the cavity and reduces resonance frequency, resulting in a more natural and controlled bass extension.

The W-shaped suspension is another notable advancement, increasing the effective vibrating surface by 25.8% compared to a conventional suspension. This geometry allows the 60mm dynamic drivers to fully exploit their potential, generating greater air movement and enhanced dynamics. The nano wood fiber composite diaphragm, inspired by the spruce used in instrument making, combines lightness and rigidity for faithful reproduction across the entire audible spectrum.

Exceptional Versatility

Unlike closed-back headphones traditionally designed for specific uses, the FT1 shines with its versatility. Its passive isolation, reaching -28dB according to some measurements, makes it an ideal companion for noisy environments: public transport, shared offices, or gaming sessions requiring total concentration. This remarkable isolation does not compromise sound quality, allowing you to discern audio subtleties even at moderate volume.

In the studio, the FT1 reveals its analytical qualities thanks to its extended response from 10Hz to 40kHz and Hi-Res Audio certification. Professionals will appreciate the precise stereo imaging and neutral reproduction, essential for mixing and mastering. For leisure listening, the balanced sound signature with a slight emphasis on the bass will satisfy fans of various genres, from jazz to electronic to rock.

Professional Connectivity and Premium Accessories

FiiO demonstrates its expertise in connectivity by providing two distinct cables: an unbalanced one with a 3.5mm jack and a balanced one with a 4.4mm connector. These cables, identical in construction, use 392 strands of silver-plated oxygen-free copper with a 24AWG gauge, ensuring optimal signal transmission. This dual approach allows you to fully exploit balanced amplifiers while maintaining compatibility with conventional sources.

The included 3.5mm to 6.35mm adapter further extends compatibility to professional audio interfaces. The hard carrying case, crafted to premium brand standards, effectively protects the headphones during transport while reflecting the product’s high-end positioning. These accessories, often overlooked by competitors, demonstrate the attention given to the overall user experience.

Thoughtful Comfort and Ergonomics

Despite its 340-gram weight, the FT1 relies on balanced weight distribution to minimize fatigue. The swiveling earcups naturally adapt to the user’s head shape, while the measured pressure of the earpads (4.5N ± 0.3N) ensures a firm hold without discomfort. The circumaural design guarantees full ear coverage, a prerequisite for effective passive isolation.

The modular architecture makes maintenance easy, with replaceable earpads and detachable cables via standard 3.5mm TRS connectors. This sustainable approach contrasts with current trends toward disposable products, aligning with the durability valued by conscientious audiophiles.

Technical Specifications

Design and Construction

• Type: closed-back
• Coupling: circumaural (over-ear)
• Solid wood ear cups: North American walnut or Chinese beech
• Conical baffle to prevent standing waves
• U-shaped acoustic damping tube for better bass extension
• W-shaped suspension joint (+25.8% effective vibrating surface)
• 3-axis headband adjustment:
  • Horizontal rotation 35°
  • Pitch rotation 45°
  • Extendable slider up to 38 mm
• Replaceable ear pads in synthetic leather and breathable fabric
• Comfortable, breathable fabric headband
• Ear pad pressure: 4.5 N ± 0.3 N
• Replaceable cables

Drivers and Acoustic Performance

• 60 mm dynamic drivers (2nd generation)
• Nano wood fiber composite diaphragm (inspired by spruce wood)
• Ultra-fine Japanese CCAW voice coil (Ø 25 mm, 0.035 mm wire)
• Frequency response: 10 Hz – 40 kHz (ultra-wide)
• Sensitivity: 98 dB / mW @ 1 kHz / 113 dB / Vrms @ 1 kHz
• Impedance: 32 Ω (low, easy to drive)
• Passive isolation: approx. -28 dB
• Advanced acoustic design for a clear and natural soundstage

Connectivity and Cables

• Y-cable, 1.5 m length
• Cable material: silver-plated oxygen-free copper (silver-plated OFC)
• Headphone connectors: dual 3.5 mm TRS
• Source connectors: 3.5 mm (unbalanced) + 4.4 mm (balanced)

Included Accessories

• 1x 3.5 mm unbalanced cable
• 1x 4.4 mm balanced cable
• 1x premium hard carrying case
• 1x 3.5 mm to 6.35 mm adapter
• Quick documentation (quick start guide)

General Information

• Weight: 340 g (without cable)
• Hi-Res Audio certified (JAS / CEA)
• Ergonomic and portable design with high durability
• Suitable for studio or on-the-go listening