The FiiO FT13 succeeds the FT1 with a refined build featuring solid Purpleheart wood cups from South America. This closed‑back headphone houses 60 mm dynamic drivers with a composite diaphragm made of European birch, wool fibers, and carbon. The acoustic design integrates a U-shaped damping tube and a tuned internal chamber for precise bass. Compatible with most sources thanks to its 32 Ω impedance, the FT13 delivers strong passive isolation and is aimed at music lovers seeking detailed listening in quiet environments.
A rare wood that evolves over time
The FT13’s cups are machined from Purpleheart wood, a South American species named for its distinctive violet hue. After arriving at FiiO’s Lianyungang workshops, the wood undergoes an unusual refining process: kiln stabilization, natural aging for 90 days in darkness to develop a deep purple color, followed by CNC machining, meticulous polishing, and hand-applied high-gloss varnish. The result: each pair features a unique grain pattern, like a fingerprint.
Purpleheart boasts higher density and hardness than common woods, giving it natural resistance to corrosion while minimizing unwanted resonances in the cups. With exposure to light and air, these cups will continue to darken over time, adopting a purplish-brown or chestnut-brown hue over the years—a natural phenomenon that adds character to the piece.
Composite diaphragm and large driver
The FT13 reprises the FT1’s configuration with 60 mm dynamic drivers, an uncommon size in this category. The large surface area enables more efficient conversion of electrical signal into sound waves, reducing distortion and speeding up transients. The composite diaphragm’s primary material is European birch, sourced from cold climates where trees develop exceptional hardness and robust fibers.
Manufacturing follows a century-old traditional papermaking method: soaking, cooking, and beating wood fibers into a pulp, then adding carbon fiber filaments for rigidity and wool fibers to fine-tune flexibility and timbre. After curing, the final thickness is just 0.1 mm. The W-shaped diaphragm, inspired by loudspeaker drivers, increases the radiating surface by 25.8% compared to a conventional flat profile, with a rigid central dome and a flexible surround to limit energy loss.
The Japanese-imported CCAW (copper-clad aluminum wire) voice coil measures 0.035 mm thick and sits on an ultra-light KSV former. Its 25 mm diameter allows a longer wire length within the magnetic field, thereby generating greater driving force and improved efficiency, especially in the midrange. This design lightens the diaphragm’s moving mass, speeding response and reducing unwanted reverberations.
Internal acoustics and enhanced isolation
The FT13 adopts a closed design that, beyond the wood cups’ natural isolation, integrates several passive attenuation components: a chamber to dissipate standing waves, absorbent cotton in the rear cavity, and a U-shaped noise-reduction tube. According to the manufacturer’s measurements, the system can reduce ambient noise by up to 26 dB, effectively filtering conversations and background noise.
The U-shaped damping tube leverages the air inside the headphones to fine-tune acoustic tuning. Its length and angle have been calculated to lower the cavity’s resonance frequency, enabling deeper, better-controlled bass. This closed design also prevents sound leakage outward, making the headphones suitable for quiet environments such as offices, libraries, or dorms.
Rethought comfort and ergonomics
The FT13’s headband is a notable evolution from the FT1. The outer U-frame is now crafted from a magnesium alloy, a material that is both lightweight and robust and integrates seamlessly into the design. Ball-bearing sliders, borrowed from high-end headphones, offer smooth adjustment with precise tactile feedback. Pivots and connections have been reinforced for greater durability.
The section in contact with the head is lined with genuine lambskin leather, more breathable and durable than the synthetic leather typically used. This choice improves comfort during extended listening. The three-axis swiveling system lets the headphones adapt to different head shapes, ensuring a personalized fit without excessive pressure points (4.2 N ± 0.3 N).
Two pairs of earpads are included. The lambskin pads prioritize clarity and precision while offering thermal comfort. The suede pads reinforce bass and provide a soft, breathable texture. These two options allow for subtle tuning of the sound signature according to preference.
All-round cabling and connectivity
The 1.5 m detachable cable features an eight-strand construction totaling 1,000 conductors: 500 Furukawa single-crystal copper wires for mid and low frequencies, and 500 silver-plated OFC copper wires for high frequencies and an open soundstage. The headphone-side connectors use dual 3.5 mm TS jacks, making cable replacement easy.
FiiO supplies interchangeable connectors to suit various sources: a standard 3.5 mm jack and a 4.4 mm balanced jack that screw directly onto the cable. Two adapters complete the package: a 3.5 to 6.35 mm converter and a 4.4 to XLR-4 adapter. This versatility lets you connect the FT13 to headphone amps, audiophile DAPs, network players, or smartphones without needing extra cables.
Easy to drive with wide response
With a 32 Ω impedance and a sensitivity of 98 dB/mW at 1 kHz (113 dB/Vrms at 1 kHz), the FT13 doesn’t require powerful amplification. Most consumer devices (smartphones, tablets, laptops) can drive it properly. Its frequency response extends from 7 Hz to 40 kHz, comfortably covering the audible spectrum and beyond, earning it Hi-Res Audio certification.
To accompany the headphones, FiiO includes a Yaoli linen pouch, a cleaning cloth, a quick start guide, and a hard carrying case to protect the headphones when traveling. The set weighs 356 g without the cable, a contained weight for a closed-back circumaural headphone of this size.
Technical Specifications
Transducers and Acoustics
60 mm dynamic drivers
W-shaped diaphragm inspired by hi-fi loudspeakers
+25.8% larger vibrating surface
Composite material: European wood, wool fibers, and carbon fibers
Ultra-light 25 mm CCAW (copper-clad aluminum wire) voice coil
Fast response and rich mids
Optimized acoustic design
U-shaped damping tube
Tuned internal chamber for precise, controlled bass
What is the main difference between the FT13 and the FT1?
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The FT13 uses Purpleheart wood cups instead of the FT1’s American walnut, with a more elaborate finishing process. The magnesium alloy headband replaces the FT1’s, and the ball-bearing sliders provide more precise adjustment. The headband padding is upgraded to genuine lambskin leather. The high-purity 1,000-conductor cable (Furukawa single-crystal copper and silver-plated OFC) also differs from the FT1. Acoustically, the diaphragm retains the composite European birch base but with integrated wool fibers.
Does the headphone require a dedicated amplifier?
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No, the FT13 can run directly from most consumer sources. Its 32 Ω impedance and 113 dB/Vrms sensitivity at 1 kHz allow it to be driven by smartphones, tablets, DAPs, or laptops without additional amplification. A headphone amplifier can still improve control and dynamics, especially with low-power sources.
What is the difference between the lambskin and suede earpads?
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The lambskin earpads emphasize clarity and precision and offer good thermal comfort. The suede earpads slightly reinforce the bass and provide a softer, more breathable texture. The choice depends on desired sound and comfort. Both pairs are included and attach easily to the earcups.
Is the FT13 suitable for mobile use?
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The FT13 is a closed-back headphone that limits sound leakage and offers good passive isolation (up to 26 dB), making it suitable for quiet environments like offices or public transport. However, with wooden cups and a weight of 356 g, it is less compact than a typical portable headphone. The included hard carrying case protects the headphones during travel, but its bulk may be a consideration for everyday on-the-go use.
User reviews
Jean michel
Excellent top-quality product of very, very high quality .. the audio signal is of incredible purity, the bass, the treble, the mids, everything responds, I am very satisfied with it, aware of the quality, whether it's the fio FT1 or the FT 13, for me they rank among high-quality headphones, I recommend these headphones, but if you want to treat yourself, start with its little brother, the FT1 by Fiio... Don't hesitate, above all don't hesitate, go for it, it's good too
Comment from March 28, 2026 — Experience from March 17, 2026
Automatically translated — Show original (French)
Excellent produit de qualité de très très grande qualité .. le signal sonore est d'une pureté incroyable les bases les aigus les médiums tout le monde répond j'en suis très satisfait fille au fait de la qualité que ce soit le fio FT1 ou le FT 13 il se place pour moi dans des casques de haute qualité je recommande ce casque mais si vous voulez vous faire plaisir commencer par son petit frère le FT1 de Fiio... N'hésitez pas surtout n'hésitez pas allez-y c'est bien aussi
Eco-contribution of €0.12 included in the sale price.
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