FIIO F9 IEM Triple Dynamic Driver Hybrid MMCX Detachable Cable +Balanced

New product

Limited special offer

85,98 €

98,35 €

Available for immediate shipping.

Brand: FiiO


FiiO F9 Dynamic Driver & 2 Balanced Armatures Triple Driver Hybrid MMCX Detachable IEM

F9 version is the full version including the detachable cable and the additional 2.5mm Balanced cable ( suitable to be connected to the FiiO X3 Mark III, the X5 III and the X7 Mark II players. 

1 Dynamic Driver & 2 Balanced Armatures for Triple helpings of rich sound

  • The F9 utilizes a hybrid design in which each channel is composed of one dynamic and two balanced armature (BA) drivers. The 9.2mm dynamic driver is specifically tuned to produce bottomless lows while the two BA drivers precisely portray extended upper-mids and highs.

Freely switch between balanced and single-ended with standard MMCX connectors

  • The F9 utilizes the standard MMCX connector for its interchangeable cables, and comes standard with both 2.5mm balanced and 3.5mm single-ended cables.
  • The 2.5mm balanced cable is made of silver-plated copper wire, which ensures a balanced sound signature and a high level of detail retrieval. Of course, due to its balanced nature, the left and right channel wires are separated so that there is significantly greater channel separation-leading to a richer, more detailed musical experience.
  • The 3.5mm single-ended cable comes with a full set of in-line controls capable of playing/pausing songs, switching tracks, volume adjustment, and even calls with its high-quality microphone. This marks the F9 a perfect complement to enhance your experience with your portable audio player or cell phone.

Making Waves with an Organic Design

  • The F9’s stunning exterior was inspired by something familiar we are all accustomed to: water. The sleek lines recall the ripples that occur when drops of water fall into a lake, making the F9 both more human and familiar.

Organic Strength

  • The ripple-like lines on the F9 not only give it a unique touch, but also serve to ensure structural strength and maximize the amount of space internally for a more optimized design overall. Moreover, the inside layer of the F9’s shell is specially lined with plastic to both better secure the drivers and eliminate internal resonances.

Colossal Energy from a Tiny Body

  • You would never imagine that such a grand sound could come from something as tiny as the F9. Due to the way we have cleverly packaged the naturally-detailed BA drivers and the traditionally vast-sounding dynamic driver, we have achieved a fully cohesive sound that you would normally not think is possible from a puny in-ear monitor.

PEK polymer nanocomposite driver for heightened detail

  • The F9 utilizes a dynamic driver made of PEK (polyether ketone) polymer nanocomposite, known for not only being tough but also being light. This allows the F9’s dynamic driver to be highly capable of producing quick, detailed, and extended bass.

Scientifically Tuned based on Physics and Psychoacoustics

  • We achieved maximum performance from the F9’s drivers by looking to the laws and principles of physics and psychoacoustics when designing our product. By doing so, the drivers are able to work in perfect harmony to achieve a cohesive sound that is absolutely able to reproduce every part of the sound frequency spectrum – allowing for a frequency response from 15 Hz to 40 kHz.

Hi-Res Audio Certification

  • The F9 has been certified by the Japan Audio Society to be “Hi-Res Audio” capable. This means that the F9 is capable of a frequency response up to 40kHz, which can fully reproduce the audio and give you a natural and life-like listening experience that truly lets you listen to the music the way the artists wanted it to sound.

Precision Craftsmanship

  • The F9’s outer aluminum shell is meticulously crafted using CNC systems – impressive already, but it doesn’t stop there. The shells are then carefully hand-polished and matched, before going through sandblasting and anodization. This complex overall process ensures that the F9 has a masculine, robust shell that is yet encapsulated in a tender beauty.

Over- the –ear design for an enjoyable experience

  • After much testing and feedback from a wide variety of users, we came up with an over-the-ear design that is not only ergonomic but also comfortable. With the F9, you can easily get lost within your music for hours without fatigue. 

Outgoing red or serene black

  • Choose red for an unreserved and vigorous loo, or go for back for an understated and sophisticated appearance.

Thoroughly Tested Before Being Delivered to You

  • We conduct dozens of stringent quality tests, thousands of times, so that you may cast your worries away and your fears are allayed.

Unexpectedly Thoughtful Accessories

  • Besides the 2.5mm balanced and 3.5mm single-ended cables, the F9 comes with a whole host of other accessories all designed to tailor and safeguard your listening experience. For instance, the F9 comes with two different kinds of ear tips – one set optimized for bass while the other is designed for a more balanced presentation. Each type of ear tips comes in small, medium, and large sizes. The color of the ear tips is even matched to the color of your F9 unit! We give you control over your listening experience, so you can listen however you want, whenever you want.
  • The F9 also comes with our popular waterproof carrying case, so you can be rest assured that your earphones will continue to function for years to come.


  • Headphone type: over-the-ear
  • Frequency response: 15Hz-40kHz
  • Drive type: 1 dynamic + 2 balanced armature drivers
  • Impedance: 28Ω
  • Sensitivity: 106dB/mW
  • Maximum Input Power: 100mW
  • Plug: 3.5mm straight gold-plated stereo jack/ 2.5mm TRRS straight gold0plated stereo jack
  • Cord length: 120cm
  • Single Earbud Weight: 3.76g
  • Detachable cable design: Yes (standard MMCX connector)


  • FIIO F9
  • 3.5mm single-ended cable with in-line controls 
  • 6 pairs of Silicone ear tips 
  • Carrying case 
  • 2.5mm balanced cable

FiiO logo

About FiiO Electronics Technology Co., Ltd.

01 Brand Introduction - HiFi+Fashion

FiiO Electronics Technology Co., Ltd. was established in 2007.  It is a high-tech enterprise that combines research, development, production and sales, and its sales are mainly based on its own FiiO brand as opposed to OEM/ODM.  It focuses on digital audio, with current mainstay products being portable headphone amplifiers, DAC / amps and portable digital audio players.

FiiO: It is composed of Fi (Fidelity) from HiFi and iO (represents number 1 and 0) which indicates the sincerer feeling and more convenient life the digital tech has brought to us.

飞傲: The Chinese transliteration of FiiO, as well as representing youthful vigor and the active & innovative spirit of the company.

Audio products are meant to fulfill the spiritual pleasure of users.

  1. FiiO provides products and service related to music.
  2. We also hope to bring happiness to our users with the provided products and service, which is also the key value of FiiO.

Customer Service

  1. Good after-sales service, more reliable
  2. Great user experience, more pleasure
  3. Variety of activities, more involved

About products

  1. Affordable: FiiO products are well-known for its feature of high cost-performance. Lowering the entry level to make more customers can afford.
  2. Easy to use: FiiO pays great attention to the user experience. We are not only provide products with high quality, but also easy to use and with long lasting durability.
  3. More accessories bring more fun: Enable to play in a variety way and use under more possible environments.
  4. Updates available: Equipped with a variety of ports, it makes the music players can still connect to external amp/DAC for upgraded enjoyment.
  5. Endless transformability available: With replaceable amp module and expandable storage, the X7 can bring more playability.

02 Company Profile

Research & Development Team

  • Twenty years of R&D experience in audio products
  • Former core R&D team for audio products from OPPO
  • A team of 20 professional R&D engineers in software, hardware, industrial design, structure and electro-acoustic.

Research & Development Investment

FiiO keeps bringing in advanced equipments and high-tech talents so as to ensure the stable growth and long term competitive edge. Up till now, the team size has expanded three times than that of 2007 when we established.

Team Composition

The R&D team is made up of development dep, engineering dep and QC dep, with 60+engineers in total.

Authorized certifications

FC, CE, KC, CCC and ISO9001:2008 ensure the safety and quality of the products.

Production management

FiiO has strict requirements to production with almost “zero tolerance” even to small problems, which is strictly in compliance with the International Quality Management System ISO9001. 

QC Equipment 

  • a. AP audio analyzer (valued at 200,000RMB).
  • b. Life-span test platform against high & low temperature, swing and plug & unplug trial.
  • Aging test carriage towards mass production.
  • Aging test machine under high & low temperature.

Customer oriented

Driven by customers’ needs, we innovate constantly and response promptly to the market changes. We develop new products based on customers’ needs and compete for more market shares.

Company culture - Our Vision

Present the world a better “Made in China”.

Brand Spirit

  • Innovation

the earliest company that designed the minimum volume headphone amplifier. First dockable amp & DAC product. First amp specially designed for iPod/iPhone. First amp with adjustable power supply and power supplied by mobile phone battery. First multifunctional headphone amp & DAC for Android smarphone. First Hi-Res music player at a price lower than 1000RMB supporting 192K music. First Android-based Hi-res music player. 

  • Quality

Repair Rate < 1%. Sound Quality Control system. Original components imported from TI, Wolfson, Maxim. Company-wide quality control. +20 quality engineers and inspectors. Complete testing facilities. 

  • Service

CEO at the frontline of customer service. 100% response to enquiries. The most popular headphone amplifier brand on Head-Fi. First class website and contents in the audio industry. Interaction with and support to customers on Facebook and Microblog (twitter-like social website).

Brand Mission

FiiO designs, produces and sells high-quality products at favorable prices to those who love music and style.

Write a review

FIIO F9 IEM Triple Dynamic Driver Hybrid MMCX Detachable Cable +Balanced

Write a review


Validi auricolari

Sono innanzitutto molto belli da vedere e comodi da indossare. Nell'ascolto si percepisce la qualità e la quantità dell'investimento tecnico che sta alla base di questi auricolari, che mostrano sin da subito la loro capacità di entrare nei dettagli più minuti della musica, offrendo una resa incredibilmente spaziosa per uno IEM, nonché una velocità incredibile.
Ma non mi sento di dare 5 stellette a causa dell'unico vero difetto del prodotto, ossia un picco nella regione degli acuti che con certe registrazioni rende stridente il suono di strumenti acustici come i violini o le voci femminili.

  • Was this comment useful to you?
  • (0) (0)

Da provare in bilanciato assieme al Dap X3 mark III

Un sorpresa per chiunque provi l'accoppiata X3III + cuffie F9! Con poco è possibile migliorare sensibilmente l'esperienza musicale. Abbiamo selezionato l'accoppiata "ascolto bilanciato" assieme ad altri prodotti FiiO per il servizio Headphone&co e lo possiamo offrire in prova ai nostri ospiti a miLoft (info sul sito) . Da FiiO e Playstereo sempre ottimi prodotti per la musica!

  • Was this comment useful to you?
  • (0) (0)


Ordinata ieri alle 15, ricevuta questa mattina alle 10. Complimenti a Playstereo e a Brt.
Il prodotto ha pienamente soddisfatto le mie aspettative, addirittura meglio di quello che mi aspettavo. Abbinate al FiiO X5 III mi hanno davvero sorpreso. Testate con brani Flac, i migliori che ho e che meglio conosco, in configurazione con cavo standard mi hanno colpito subito per la buona resa, ma dopo pochi minuti, la timbrica degli acuti mi risultava troppo tagliente e dopo una ventina di minuti ne ero infastidito.
Provando la configurazione con cavo bilanciato, beh... tutta un'altra musica. Tutto quello che prima mi risultava quasi fastidioso è diventato rotondo, caldo e in armonia con il resto della timbrica.
Non sono molto esperto di questa classe di cuffie, fino ad oggi fuori casa ho utilizzato delle Piston 2 e provato per qualche giorno delle Sennehiser, non ricordo il modello ma erano top di gamma da 180 euro, che non mi erano piaciute per nulla.
Se vi può essere d'aiuto, in casa uso delle Sennehiser HD 540 Reference Gold e queste F9, per uso fuori casa, nella versione con cavo bilanciato, ve le consiglio vivamente.

  • Was this comment useful to you?
  • (0) (0)

Write your review!

  1. Luca Puglisi
    2021-02-17 11:46
    Buongiorno, stavo valutando l\'acquisto di queste cuffie o in alternativa della versione pro in accoppiata al UTWS3 per avere delle decenti wireless da usare principalmente per ascolto tramite iPhone in mobilità, considerando la non eccelsa fonte (iPhone 12 + apple music) vale la pena orientarmi sulle pro e spendere di più oppure la differenza qualitativa verrebbe vanificata dalla sorgente? Grazie in anticipo per la risposta e vi auguro buona giornata. Luca
    • PlayStereo
      2021-02-17 16:09
      Buonasera Luca, il modello F9 ha un timbro particolarmente "flat", adatto a musica acustica e anche classica etc. Le F9 Pro sono più complete, spettacolari e divertenti. La limitazione di questo sistema, purtroppo, è proprio il Bluetooth dell\'iPhone, che non supporta i nuovi codec ad alta densità di dati, e questa è comunque una limitazione non da poco. A presto.

30 other products in the same category:

Customers who bought this product also bought: