FiiO at Audio46

FiiO FH5s Semi-Open In-Ear Monitors


mmcx connection


Product SKU: FH5s black


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Product Details

(Specifications and appearance of this product are subject to change without notice)
↓ Details provided by FiiO


2 Balanced Armatures 2 Dynamic Drivers In-Ear Monitors

All-new acoustic design | 3 swappable headphone plugs
3 sound tuning switches | Semi-open design with grand soundstage

FH5s standard version cable:

Included is a cable with 4 strands of 120 wires each, made of high-purity silver-plated monocrystalline copper, braided in Litz style for purer sound. The cable comes with expanded MMCX connectors and a twist-lock interchangeable 2.5/3.5/4.4mm plugs system to further enhance your overall experience.

All rise for the return of the classic

Thanks to the excellent designs and great sound, FiiO balanced armature and dynamic driver hybrid earphones have always been highly praised and become best sellers due to positive word-of-mouth. The all-new rookie FH5s is a true upgrade from the veteran FH5, with significant advancements and innovations in all aspects including appearance, comfort, sound quality. The student has now surpassed the master.

Better sound in a brand new 2+2 architecture

Brand-new double dynamic driver+double balanced armature architecture brings new sound performance

A new double dynamic driver and double balanced armature acoustic architecture was developed for the FH5s. Replacing the balanced armature used for mid frequencies in the original FH5, the new mids dynamic driver provides better vocals and soundstage in the FH5s. The dual dynamic driver setup connects the bass and mids together more smoothly and coherently, as well as covers a wider range of frequencies and provides a larger soundstage. It simply creates a better sense of atmosphere and truly envelops you into the music!

12mm beryllium-plated dome + PU gasket dynamic low frequency driver
The third generation 12mm Tesla low-frequency dynamic driver is engineered to give extremely high-quality bass. With its rigid yet flexible polyurethane polymer surrounding gasket + beryllium-plated diaphragm dome and N52 magnets capable of 1.5 Tesla, this driver is capable of some seriously deep and potent yet controlled bass.

6mm beryllium-plated dynamic mid frequency driver
The mid frequencies are also taken care of by beryllium-plated diaphragm dynamic drivers, which are carefully tuned to smoothly connect to the other drivers. The results are luscious yet pure vocals that are easy to get addicted to but hard to stop listening to!

Time-tested Knowles TWFK-30017 high frequency driver
Treble is handled by the Knowles TWFK-30017 balanced armature driver, which has proven to be wildly popular among music listeners. This driver is placed directly in the sound tube to be as close to the ear as possible for less high-frequency loss and better extension, giving the FH5s its exquisite treble.

Experience and expertise in tuning

Excellent materials and solid data are important parts of a good foundation for sound. FiiO headphones have been sold in more than 70 countries around the world, allowing us to accumulate a large amount of user opinion data. This data has helped us to continuously improve the sound of our headphones, and the FH5s represents our best work to date. It's easy to become a fan of its sound, but hard to get tired of it!

Fine-tuned to perfection

Within the FH5s, we have accurately calculated how each driver should focus on the low, mid, high, and ultra-high frequency response ranges for great sound. The results? Robust bass, clear mid-range vocals, and exquisite yet non-fatiguing highs and ultra-highs.

8 exciting ways to listen 3 tuning switches for lows, mids, and highs

While the default sound tuning will suit the taste of most audiophiles, there are also three tuning switches controlling the bass, mids, and treble for further customization. Whether due to listening to a certain kind of music or due to your taste, find a sound that perfectly fits you with the tuning switches.

BASS ON: enhanced bass
Mids ON: reduced mids
Treble ON: enhanced treble

Relieving stress to protect your hearing

The semi-open design at the rear cavity was refined through computer simulations to ensure air pressures at the front and rear cavities are balanced – resulting in larger soundstage, more comfortable listening, as well as a natural sound.

TRISHELL Acoustic Design
Technology inspired by supercars

The FH5s employs the TRISHELL "sandwich" structural design, with the 5-axis CNC machined aluminum-magnesium alloy rear shell, body, and front covers solidly fixed together at 3 points to greatly reduce excess resonance and distortion. Just like an exotic supercar with its super-rigid chassis to maximize performance.

Magnificent at first sight

The open-air mesh guides perfectly blend with the layered "dragon scales" on the faceplate of the FH5s to give it a powerful, stunning design.

Impressive in-hand

The shell is made of CNC-machined aluminum-magnesium alloy, which is firm enough to even reduce the unwanted resonances within! Here, the sturdiness of the shell actually improves your music.

Massively comfortable in the ear

The third-generation ergonomic curve is optimized for a perfect fit around the human ear for an extremely comfortable experience.

Hi-Res Audio certified

The FH5s is Hi-Res Audio certified, a testament to its ability to present your music the way it was meant to be heard.

Rich accessories

As always, a wealth of accessories are included to give you a great experience right from the start.

  • Earphone unit
  • Earphone cable
  • Swappable 2.5/3.5/4.4 plugs
  • Carrying case HB5
  • Bi-flange ear tips*1 pair
  • Vocal ear tips*3 pairs
  • Bass ear tips* 3 pairs
  • Balanced ear tips*3 pairs
  • Foam ear tips*3 pairs
  • MMCX assist tool
  • Cleaning brush
  • Manual


Product Type 2 BAs 2 Dynamic Drivers Hybrid IEM with detachable cable
Model FH5s
Color Black and Gold
Drivers 12mm beryllium-plated diaphragm/PU gasket + 6mm beryllium-plated + Knowles TWFK-30017 compound BA
Frequency Response 10Hz~40kHz
Impedance 40Ω@1kHz
Sensitivity 106dB@1kHz/mW
Max Power Input 100mW
Connector MMCX
Cable High-purity monocrystalline silver-plated copper wire
Weight Approx. 8.8g (single ear unit)

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