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The FiiO FT7 is a high-end open-back planar magnetic headphone designed for exceptional sound reproduction. It is based on a large 106mm planar driver, one of the biggest in its category, combined with an ultra-thin 1µm PET diaphragm. This diaphragm features a patented multi-layer coating made of 24K gold and pure silver, optimizing both conductivity and musicality.
The FT7 offers an extended frequency response from 5Hz to 40kHz, ensuring faithful reproduction across the entire spectrum, from deep bass to ultra-high frequencies. It comes with a 6N OCC monocrystalline copper cable, treated with cryogenic processing at -192°C, with PFA insulation ensuring excellent signal transmission.
In terms of connectivity, the headphone is equipped with a 4.4mm balanced connector, along with adapters to 4-pin XLR and 6.35mm jack, ensuring wide compatibility with both portable and desktop audio systems. Its design incorporates premium materials such as carbon fiber and natural wood (zebrawood), for a controlled weight of around 427g, combining durability, comfort and acoustic performance.

The FiiO FT7 uses a latest-generation planar diaphragm based on an ultra-thin PET substrate of only 1µm, enabling exceptional responsiveness and extremely detailed micro-information reproduction.
This diaphragm is manufactured using an advanced 28nm-grade deposition process, ensuring a homogeneous and durable structure. FiiO applies a patented multi-layer coating combining 24K gold and pure silver, each material bringing its own properties :
This combination results in a sound that is both analytical and musical, with a significant reduction in distortion and excellent long-term stability.

The FT7 integrates an advanced magnetic system based on a dual-sided push-pull architecture, placing magnets on both sides of the diaphragm for optimal control of its movement.
This system relies on high-performance N52 neodymium magnets, with a total of 18 magnets (9 on each side), generating a magnetic flux of up to 1.5 Tesla. This power ensures excellent dynamics, tight bass and fast transient response.
The magnetic structure also benefits from a patented uniform magnetic field design, with optimized magnet shapes allowing :

The FiiO FT7 comes with a premium cable designed to preserve audio signal integrity. It uses 6N OCC monocrystalline copper (99.99998%), ensuring exceptional conductivity and extremely low signal loss.
This cable undergoes cryogenic treatment at -192°C for 7 days, improving the crystal structure of the copper, reducing internal stress and optimizing electron flow.
Insulation is provided by PFA (Perfluoroalkoxy), characterized by a low dielectric constant (2.1), which reduces losses and improves signal stability. This design contributes to a more natural sound reproduction, with rich mids and better-defined bass.


The FT7 adopts a modular connectivity solution with a detachable cable, allowing great flexibility of use. It comes equipped with a 4.4mm balanced connector, ideal for optimal channel separation and improved signal quality.
To adapt to different equipment, FiiO provides two adapters :
This system ensures wide compatibility with audio sources, whether audiophile players, DAC/amplifiers or Hi-Fi systems, while maintaining a high level of performance.
Technical specifications
| Specifications | |
|---|---|
| Product type | Headphones |
| Headphone type | Open-back over-ear |
| Driver | Planar magnetic |
| Diaphragm diameter | 106mm |
| Impedance | 25 ohms ±15% |
| Sensitivity | 94dB/mW @ 1kHz 110dB/Vrms @ 1kHz |
| Frequency response | 5Hz-40kHz |
| Detachable cable | |
| Cable conductor material | 6N OCC monocrystalline copper (99.99998%) |
| Headphone connectors | 2x 3.5mm TS jack |
| Cable termination | 1x 4.4mm jack |
| Length | 3m |
| Earpad pressure | 4.2N±0.3N |
| General | |
|---|---|
| Weight | 427g |
| Color | Wood |
| Package contents | 1x FiiO FT7 1x Detachable cable 2x 3.5mm jack to 4.4mm termination 1x 4.4mm to 6.35mm jack adapter 1x 4.4mm to 4-pin XLR adapter 1x Leather earpads pair 1x Storage pouch |
| Color | Wood |
| Impedance (Ω) | 25 |
| Efficiency / Sensitivity (dB) | 94.0 |
| Lowest frequency (Hz) | 5 |
| Highest frequency (Hz) | 40000 |
| Wireless | No |
| Cable termination | Jack 4.4mm |
| Cable termination | XLR 4-pin |
| Cable termination | Jack 6.35mm |
| Headphone / Earphone connector | Jack 3.5mm |