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Watt’n Potatoes

Authorized dealers for FiiO M9

  • 110Hz — online and in-store — Kielce, Województwo świętokrzyskie, Poland (website)
  • Acoustic Technologies — online and in-store — Montréal, Québec, Canada (website)
  • Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
  • Advanced MP3 Players — online and in-store — Musselburgh, Scotland, United Kingdom (website)
  • Alpha Audio Pte — online and in-store — Singapore, Singapore (website)
  • Apos Audio — online and in-store — Oakland, California, United States (website)
  • Audeos — online and in-store — Żywiec, Województwo śląskie (website)
  • Audio 46 — online and in-store — New York, New York, United States (website)
  • Audio Affair — online and in-store — Deritend, England, United Kingdom (website)
  • Audio Basic — in-store — Singapore, Singapore (website)

and 58 more verified dealers

Potato score: 89.75

90%

FiiO M9 #1
FiiO M9 variant 1
FiiO M9 variant 2
FiiO M9 variant 3
FiiO M9 variant 4

FiiO M9

China flag
View at FiiO
Bluetooth
aptX HD
Balanced Headphone Output
Touch Screen
Hi-Res Audio
Display
Battery Powered

M9

M9

The Ultimate in Versatility


Portable High-Resolution Audio Player


*Pictures are for illustration only, actual product may vary


Bluetooth 4.2


(aptX/aptX-HD)


AK4490EN×2


3.5+2.5


Exynos 7270


Wi-Fi Music Streaming


LDAC


USB Audio


Native DSD Support


Unique RGB


Light Indicator 


Two-way


USB Type-C


USB DAC 


Functionality


10 Hours


Playback Time


45 Days


Deep Sleep


OTA Firmware


Update


Eight-layer HDI PCB


SPDIF Output 

A player that does it all

When developing the M9, we at FiiO saw that there wasn't any one player that combined all of the functions people want. Was there a player that could transmit the HWA/aptX/aptX HD/LDAC lossless Bluetooth codecs, even when used as a USB DAC? What about something that also contained a highly optimized audio circuit for excellent sound quality? Did any players also give the user an experience worthy of a flagship, capable of many features including Wi-Fi music streaming all in a slick interface? We sought to change that with the M9 – which does all of this and more.

Bluetooth audio unleashed with full format support

The M9 uses Bluetooth 4.2 and supports virtually all Bluetooth formats including the high-resolution ones for your ultimate listening pleasure, including: 24-bit aptX HD (also backwards compatible with aptX), LDAC, and HWA. 


As a Bluetooth transmitter: LDAC/aptX/aptX HD/SBC (both natively from the player and through USB DAC)



As a Bluetooth receiver: SBC (LDAC to be added with software updates)

A music player, but also a capable Bluetooth amplifier

When set to be in the Bluetooth receiver mode, the M9 transforms into a high-quality Bluetooth amplifier, with significantly better frequency response, as well as lower distortion, noise floor, and crosstalk compared to typical Bluetooth solutions. On top of that, the M9 can also output any received Bluetooth signals through the coaxial out to an external decoder. With the M9, you can enjoy truly divine sound over the wireless convenience of Bluetooth.

Dual AK4490EN DACs for superb decoding performance

The two AK4490EN DACs employed in the M9 feature a high signal-to-noise ratio, exceptional dynamic range, and low distortion – making for a precise yet exciting sound signature.

Built-in dedicated FPGA with DSD128 hardware decoding

Inside the M9 is a high-performance A3P030 FPGA, responsible for ensuring your music (whatever sample rate) is played back accurately by stabilizing digital clock signals. The FPGA also decodes DSD64/128 in hardware, which the M9 supports in ISO/DFF/DSF formats.

Eight-layer HDI PCB ensures excellent sound quality

For the first time, in the M9 FiiO uses an eight-layer HDI (High Density Interconnect) PCB with a thickness of only 0.08mm. While the M9 PCB is more complex than the one in the M7, it also allows more components to be integrated into a smaller space, leading to a smaller PCB and a smaller device overall. Combined with the fact that the M9 PCB is L-shaped, similar to modern smartphones, and you have a recipe for outstanding sound quality.

Specially-designed audio circuit with balanced and single-ended outputs

The TI OPA1612 is used as the LPF, while the TI OPA1622 serves as the current buffer. To achieve single-ended and balanced output, there are two OPA1622 op-amps used that provide up to 77mW* of power under a 300Ω load.


*Under balanced output

Get your music from wherever and whenever

With the M9, you can get your music from wherever, whenever. Don't want to deal with wires when transferring your songs over? Use Wi-Fi on the M9. Want to listen to your music on your computer? Do so with DLNA without having to worry about space on the M9. Want to discover new music on streaming services? The built-in streaming apps have you covered.


*Can install whitelisted third-party music streaming apps

Always your faithful companion

Under normal usage the M9 can last around 10 hours, while in deep sleep (standby) mode the M9 can be still be used after a whopping 45 days! And being in deep sleep mode does not mean sacrificing convenience – just hit the power button, and the M9 instantly is ready to go.


10 hours


Playback time


45 days


Deep sleep

Indulge in the pleasure of balanced

The M9 contains both single-ended 3.5mm and balanced 2.5mm audio jacks, for even more ways to listen with your headphones. The M9 also supports in-line controls in both CTIA (common with Android headsets) and iOS headsets. (With iOS headsets, only play/pause functionality is supported.)

A picture is worth a thousand words

Unique to the FiiO M9 is RGB light indicator status that shows what audio format you are listening to! Instantly know what audio format your M9 is playing as well as its overall status, with the indicator status showing red to remind you to charge your device.

Bring out the best in your computer with USB DAC functionality

The M9 can be used as an asynchronous USB DAC with both Macs and Windows PCs. With Mac computers, you can just plug-and-play the M9 with no drivers needed. With Windows PCs, a simple install of drivers by FiiO is needed. The M9 can also act as your computer's Bluetooth transmitter – simply hook the M9 up to your computer as a USB DAC, and then have the player transmit Bluetooth audio to your headset! 

USB audio and coaxial out support

The M9 supports USB audio out (send digital audio bits through USB), with even support for DoP/D2P. Also, the M9 is one of the few players that can receive Bluetooth audio and output it through coaxial (SPDIF) out.


*You can select between USB Audio DoP/D2P in the settings menu

Incredibly fast with a deeply customized OS

In the heart of the M9 lies the Android operating system, deeply customized by FiiO. This allows you to navigate through menus at an astonishing speed and with amazing ease due to the carefully thought out customized user interface.


Also, apps for popular streaming services including NetEase Cloud Music, MOOV, Tidal and KKBOX are pre-installed to allow even more ways to listen to music. 



*Can install whitelisted third-party music streaming apps


*Whitelisted apps: NetEase Cloud Music, MOOV, Tidal, KKBOX, Spotify, Qobuz, Roon, Deezer, JOOX, ES file manager, Bandcamp, and Sony headphones.

An intensely orderly design language

The all-aluminum body tastefully combines both straight and rounded edges in an unmistakably unique design, with the gentle curve of the left side naturally transitioning to the bold straight lines of the right side. Despite its beautiful form, the M9 doesn't sacrifice functionality – the volume wheel has been upgraded for more accurate control and a better, more tactile feel; while the power, play/pause, and change tracks buttons on the left have been arranged for even greater comfort in using the player.

LG IPS touchscreen with in-cell technology

Adorning the front of the M9 is a vibrant, clear 3.2 inch IPS screen capable of 16 million colors and supporting 5-point touch. This IPS screen allows you to easily operate your device with its ability to show even the finest of details.

Contemporary USB Type-C connector

The M9 utilizes the modern USB Type-C connector, which allows it to not only be used as a USB DAC but also allows output of digital audio signals to other devices through USB. Of course, USB Type-C also enables charging and file management on the M9 when connected to other devices.

Be accepting of all music with 2TB of storage

The M9 comes with a healthy 2GB of storage, but the storage can be expanded up to a massive 2TB with micro-SD card!

Hi-Res Audio certified

The M9 has been certified by the Japan Audio Society to be “Hi-Res Audio” worthy, only achieved by devices truly capable of bringing a realistic and natural audio experience.

Wealth of accessories fit for a king


Every M9 comes with a TPU case, high quality USB cable, and a tempered glass screen protector. An optional PU leather case is also available.


*Tempered glass screen protector is pre-applied from the factory.

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Professional Reviews 90/100

Rating for M9

Nicely Roasted

Sound Quality

88/100

Build Quality

91/100

Features Usability

90/100

Value for Money

93/100

The FiiO M9 brings fast, revealing dynamics to a pocket-friendly DAP, pairing full-bodied vocals and clean, shimmering treble with impressively deep, open staging. Its balanced sound, responsive interface and robust wireless streaming make local files, offline music and Bluetooth listening feel effortless, while the sleek aluminium build delivers a notably premium everyday source.

What Reviewers Are Saying

"It is also the most beautiful FiiO DAP to date, it is so simple and gorgeous."

— Soundnews

Pros

Engaging, balanced presentation with full midrange tone, quick transients, strong detail and non-fatiguing treble.

Deep, well-separated soundstage keeps dense and live recordings spacious rather than congested.

Excellent wireless flexibility, with strong Bluetooth and Wi-Fi performance plus offline streaming to microSD.

Premium-feeling compact aluminium chassis and polished, responsive interface.

&

Cons

Sub-bass depth and ultimate treble extension trail more expensive players.

Balanced output can produce audible background noise with highly sensitive IEMs.

Limited internal storage makes a microSD card essential for a substantial music library.

SOUND QUALITY PERFORMANCE 88/100

Reviewers find the M9 lively, well balanced and unusually spacious for a compact portable player. Its strengths are an engaging midrange, quick transients, solid separation and a clean treble, while ultimate bass extension, treble refinement and layering remain behind stronger high-end players.

Tonal Balance Musicality

90/100

Soundnews heard a seamless bass-to-midrange transition, a fuller-than-expected midrange, convincing vocal decay and string tone, plus treble shimmer without harshness or sibilance. PortaFi similarly called it balanced, emotionally engaging and pleasantly coloured rather than dry or overtly monitor-like, though bass depth and top-end extension are not exceptional.

Resolution Detail

87/100

Reviewers consistently describe good detail, quick dynamic swings and convincing instrument separation. Soundnews particularly praised the space and depth with dense or live recordings, but PortaFi notes that layering and treble complexity are simplified beside more expensive rivals.

Digital Performance

86/100

The M9's implementation is described as clean, agile and free of obvious harshness in its normal presentation, with one review noting that Wi-Fi and Bluetooth do not intrude on listening. Currawong found the analogue output well judged for portable use, although filter behaviour and ultimate sound quality were not considered outstanding.

FEATURES USABILITY PERFORMANCE 90/100

For a compact DAP, the M9 offers a notably flexible mix of local playback, offline streaming, Bluetooth capability and USB DAC functionality. Control and wireless performance receive strong feedback, although FiiO Link was still in beta during one review.

Streaming Software

88/100

Audiophilepure found FiiO Link remarkably capable even in beta, with fast response, rare delays and remote access to browsing, playlists, volume and favourites. PortaFi also highlights Android-based streaming support and offline downloads to microSD, though the available evidence does not establish a fully polished long-term software experience.

Features Connectivity

93/100

The M9 supports Wi-Fi streaming, high-resolution Bluetooth transmission, Bluetooth receive and transmit functions, USB-C and USB DAC operation, plus expandable microSD offline storage. Soundnews especially praised its comprehensive Bluetooth implementation, strong wireless range and improved Wi-Fi reception.

Assessments of Build Quality, Usability, and Overall Propositions.

Build Quality

91/100

Multiple reviewers praise the compact all-aluminium construction, with Soundnews calling the single-block chassis and glass front impressively sleek. PortaFi reports tight assembly with no looseness or rattles, while Currawong found it to have a notably professional feel.

Value for Money

93/100

At the stated $229 price, reviewers regarded the M9 as performing above its price class. PortaFi said its sound could compete with more expensive models, while Soundnews felt its design and construction stood shoulder to shoulder with pricier competing DAPs.

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Verified Dealers

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Authorized dealers for FiiO M9

  • 110Hz — online and in-store — Kielce, Województwo świętokrzyskie, Poland (website)
  • Acoustic Technologies — online and in-store — Montréal, Québec, Canada (website)
  • Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
  • Advanced MP3 Players — online and in-store — Musselburgh, Scotland, United Kingdom (website)
  • Alpha Audio Pte — online and in-store — Singapore, Singapore (website)
  • Apos Audio — online and in-store — Oakland, California, United States (website)
  • Audeos — online and in-store — Żywiec, Województwo śląskie (website)
  • Audio 46 — online and in-store — New York, New York, United States (website)
  • Audio Affair — online and in-store — Deritend, England, United Kingdom (website)
  • Audio Basic — in-store — Singapore, Singapore (website)

and 58 more verified dealers

110Hz logo
Acoustic Technologies logo
Addicted to Audio logo
Advanced MP3 Players logo
Alpha Audio Pte logo
Apos Audio logo
Audeos logo
Audio 46 logo
Audio Affair logo
Audio Basic logo