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FiiO FD5 Dynamic In-Ear Monitor Earphones with Beryllium DLC Driver and Semi-Open Acoustic Design

  • mfr: FIIOFD5
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Product highlights

  • A uniquely timeless industrial design
  • Specially selected high-performance materials diaphragm
  • Revolutionary acoustic design breakthroughs
  • 12mm dynamic driver N52 magnet and 1.5 tesla magnetic flux
  • Beryllium-coated DLC diaphragm low distortion and dynamics
  • Front acoustic prism smaller phase mismatches
  • Rear volcanic field system for diffusion of low frequencies
  • Semi-open acoustic design for beautiful and unfatiguing sound
  • Timeless industrial design stylish faceplate
  • Interchangeable sound tube comfortable and exceptional sound

FiiO FD5 Dynamic In-Ear Monitor Earphones with Beryllium DLC Driver and Semi-Open Acoustic Design

FiiO FD5 Dynamic In-ear Monitor Earphones feature a Beryllium-coated DLC diaphragm, Front acoustic prism, Rear volcanic field system, Semi-open acoustic design, Interchangeable sound tubes, and Interchangeable audio jacks.
Newly Developed DLC Dynamic Driver
The FD5 is a newly developed, large 12mm dynamic driver utilizing N52 magnets with a high magnetic flux of 1.5 Tesla - for extremely robust bass and excellent high-frequency resolution.
Beryllium-Coated Surround and DLC Diaphragm
FiiO has conducted much research and experimentation when choosing the materials for the new dynamic driver. By combining the use of Beryllium and diamond-like carbon (DLC), FiiO make full use of the physical rigidity and flexibility properties of the materials to reduce unneeded vibration and appropriately damp sound for improved quality. Overall, the frequency response is balanced and distortion is minimized at all frequency ranges.
Diaphragm Movement Comparison Graphs
Because of its use of rigid DLC material, the diaphragm is more responsive to voice coil movements for less distortion and more accurate reproduction of sound.
High-End Audio Inspired Acoustic Prism
To address the issues that come with the time delay between different sound waves, an acoustic prism system was specifically developed for the FD5. This was inspired by similar technology used for adjusting tweeters in well-known high-end audio products. By installing a conical device close to the front end of the driver diaphragm, FiiO can precisely control how the sound waves travel in the sound tube- bringing benefits such as eliminating high-frequency standing waves and enhancing overall sound wave diffusion.
Anti-Standing Wave and Semi-Open Design
A ‘volcanic field’ was added to the rear of the FD5 to reduce low-frequency standing waves, reduce distortion, and overall improve the diffusion of bass waves throughout the FD5. The FD5 also adopts a semi-open design, which relieves air pressure on the ear - leading to more comfortable and long listening sessions.
Actual Sound
Compared with a multiple-driver IEM, in the FD5 there is only one point from which the sound is produced from a single driver - making for more accurate sound positioning. The dynamic driver was carefully tuned in acoustics to make the FD5 sound wonderfully pleasant to most people's preferences - a relaxed, natural.
Curves of Natural Beauty
FiiO's third-generation design is based on carefully- designed curves, evoking majestic mountains and wondrous waterfalls. These curves combined with a faceplate offering two distinctly different textures form a sort of ‘acoustic art’ that needs to be experienced in person.
Casting a Strong Voice with Stainless Steel
The smooth, luxurious-feeling 3D embossed stainless steel faceplate represents both form and function - while looking striking; the robust stainless steel also reduces the harmonic distortion of sound inside the FD5. The faceplate provides a striking contrast against the chrome finish of the rest of the FD5 as well.
Art and Science in Harmony
The stunning curved cylindrical design of the FD5 is a benefit for acoustics, as such a design greatly reduces unwanted resonances and reflection of sound waves within the body - allowing every last detail of your music to be faithfully reproduced.
Large and Small Find Something That Suits You
Great sound comes from a great fit, which is why the FD5 comes with interchangeable sound tubes in small and large sizes to best fit your ear. The large sound tube is balanced, while the small sound tube presents a lively, more bass-focused sound. The small sound tube should be used with the triple-flange ear tips, for deeper insertion and better sound quality.
Interchangeable Parts for Unlimited Possibilities
The included cable is an expanded MMCX design with 8 strands of monocrystalline silver-plated copper cable that perfectly and faithfully reproduces your music. The cable also features interchangeable audio plugs for 2.5mm, 3.5mm, and 4.4mm, you to take advantage of a variety of sources. Material is high-purity monocrystalline silver-plated copper and the wire diameter is single wire 0.08mm, strand 24AWG, entire cable 18AWG Wire count is 19 per strand, 8 strands, 152 total wires structure is litz Type2, each wire is individually insulated.
Hi-Res Audio Certified
The FD5 is Hi-Res Audio certified a testament to its highly detailed, yet rich and lifelike sound.
Accessories Worthy of the Experience
Even the accessories have been thoughtfully considered for the FD5. The included HB5 storage case dutifully protects your earphones, while the included MMCX clips greatly facilitate detaching the MMCX cables. MMCX ASSIST is provided in cooperation with Final Inc.


Driver Type Dynamic
Earpiece Swivel No
Wearing Style Wired
Magnet Type Neodymium
LED Indicator No
Configuration Core
Wireless Charging No
Wireless Connectivity
Multipoint Support No
Beamforming Support No


Customer Questions
No Questions


Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

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FiiO FD5 Dynamic In-Ear Monitor Earphones with Beryllium DLC Driver and Semi-Open Acoustic Design SKU: FIIOFD5

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