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.