Fiio M6 ( Roundup Review )

Whats the biggest different to the M7? 

M6 or the sony nw a45?

Can we install the apps like Foobar or Poweramp?


I guess you want to know all these questions. 

It costs you so much time to find all the reviews and read the questions everywhere isn’t it? 

Well, here, Xtenik already help you to collect all the common questions and answer, and all the reviews. So you can find them very easily. 

Note: Xtenik just collected all the summary from other sites, if you want to read the full review, just click the button, it will redirect you to the original article. 

Article Review 


I own an fiio x1 2nd gen, will this be a proper upgrade in terms of sound quality? 

it won’t be a big upgrade in terms of SQ, it’s more for those who need additional features 

I’ve been happily using Sennheiser foldable PX100II (with a K1 and a Nexus 6P), I think they’re 32ohms. Do you think it will be a good match for the M6? 

32Ω load will be good for M6, so I’d assume it would be good matching 🙂

Is it some huge  difference between some samsung phone and fiio m6 in how it sounds ,in music quality via bluetooth?!

Bluetooth doesn’t depend on DAC, so if Samsung doesn’t do something with digital signal, sound via wireless will be equal

Whats the biggest different to the M7? 

In terms of sound, M6 is a bit more weighty and full-bodied. also it’s better controlling less sensitive headphones

in terms of features, M6 has WiFi and supports streaming media, AirPlay and other useful services

M7 has much longer work time (more then 20 hours sometimes) and FM radio 

M6 or the sony nw a45? 

For sound quality — definitely M6

But Battery lasts significantly longer on the Sony

For battery life FiiO has M7 🙂 and M3K

Is there a noticeable bump in SQ between the m6 and m9?

Yep, difference isn’t huge, but it’s not minor, and I’d said it’s pretty noticeable 

Can we install the apps like Foobar or Poweramp? 

No, you can’t. only whitelisted apps

İf you have money, and your priority is sound, Which one do you prefer, M9 or M6? Is M9 create a big difference in sound? What do you think in detail… 

M9 for sure. it’s more mature device in almost every aspect of sound

M6 vs X7 First generation which one you prefers ?

sonically — X7 is better, in terms of usability — M6 

Could you please let me know How does Bass fare on this. Will it deliver good and strong base?  

M6 delivers NORMAL bass 🙂 it’s pretty neutral source without accents on any frequencies, so, probably for those who used to lows accent, it could be bass-light, but it’s definitely normal. and if someone needs low accent, it’s more logical to achieve that via headphones selection, as DAP’s task it to play without coloration 

I was confused between M6 and Sony NW-A45. May be sony suits to my taste 🙂 

If you’re ok with synthetic sound, then yes, A45 will be OK, especially with all that sound enhancers and bass boosters. 

Is the EQ quite efficient? 

It’s working, but I prefer to keep it off, as it makes sound worth, like it happens in 95% of DAPs 

How does this compare to the m7?

M6 is more feature packed and a bit better sonically, m7 offers much better battery life time (and FM radio) 

I own a X1 1st gen, do you think it is worth upgrade to this device? I would use it even connected to my home stereo through its usb (what I cannot do with my X1). But what about sound quality? Would I earn something more using this compared to X1 1st? 

M6 is a bit better then X1, but don’t expect big improvement anyway, it’s still an affordable device, built to be cost-effective

Can it play spotify streaming music over Bluetooth ? 

Yes, it can. 

FAQ Source ( You also can find it on here)

Headfonics Review 

Old And New Features

Fiio’s core audience has always been the traditional mass consumer market and the M6 is the most consumer-friendly DAP design from the company since its venture started. The new model is being offered at entry-level pricing but you will see advanced parts and features such as ES9018Q2C DAC and DSD support as well as hi-res Bluetooth such as LDAC.

Some of these features are meant to be designed for the higher-end users and despite being very affordable M6 adds even more premium feature than its higher-end brothers including airplay and a visually appealing IPS screen.

The radio function is gone and battery life is 1/4 less than the M7. The size is much smaller than the M7 allowing you to slide the M6 into the pocket and forget its existence. I love the smooth curves and non-geeky look but if you are a hardcore audiophile you may want more edges on your DAPs and you may miss the lack of balanced connectivity.

Technology Inside


The very sleek body packs in the same 14nm fabricated Exynos 7270 processor like the M7 and the M9. The build is consisting of a 1.0GHz Dual-Core with a GPU, under 14nm FinFET Process designed to support wearable device up to qHD graphics at low power consumption.

Audio Circuit

The audio circuit features ES9018Q2c DAC chipset using the critically acclaimed ESS patented 32-bit HyperStream™ DAC architecture with Time Domain Jitter Eliminator. The audio output it measures >118dB THD and >110mW output @16ohm. These are decent measurement results and quality parts for an entry-level DAP.

There is one highlight that would make sensitive listeners happy. The M6 manages to control the noise under 3uV, that means even on Andromeda you won’t hear any noise. 

Head-fi Review 

The system responsiveness is quite fast, maybe not on par with higher smart phone devices with stronger processors and memory, but definitely faster than other contenders on the same price tag. The current firmware is completely stable, even better than the M3K which is already solid enough. The touch screen has good color depth and resolution for the ~3″ size, nice viewing angle and brightness can be set high enough. The navigation is very easy and has quick response, probably thanks to the Exynos processor and the simplified Android running system.


Upon powering the M6 player on it takes around 30 seconds to boot, a very average record, though power off time is much faster; alternately, the M6 has a long sleep standby time if you prefer to avoid restarting the system every time. On the current firmware, the device starts on the main home screen with some apps icons over a black or white background (to the user’s preference). There are no ‘home’ or ‘back’ physical or touch buttons, but instead they’re replaced by simple touch gestures. A swipe up from the bottom right of the screen immediately takes back to the home screen, while swipe up from the left bottom takes to the previous screen. This works flawlessly and it’s also quite convenient when browsing through folders on the compact screen. The right and left swipes also work on certain screens. Everything is quite intuitive and if needed, the manual and quick-start guide are already included on the M6 memory.

The main application on the M6 is the FiiO Music App, which is available for both Android and iOS systems. It is an easy, fast and reliable app that includes all the main features as music player software. The Gapless and playing through folders work well and there are also 6 different EQ options, including a wide custom user-defined EQ choice.

Being an Android based player, the M6 includes four preinstalled apps, and extra apps may be installed by downloading the APK files directly from the FiiO site. Tidal and Spotify are available for music streaming too. However, the available apps are limited to a ‘white list’ allowed by FiiO; this may sound as a disadvantage, but was done in order to avoid any issues on the M6 performance as a simple and stable portable music player. Playing video files is possible too; at least it works through the ES File Manager app, though a more dedicated video player would be nice if could be added. The screen does not rotate for full screen view, something that may be fixed on a future update, or FiiO may allow a dedicated movie player application.

The volume control is great. The changes from each step to the next are very subtle, so a perfect match for sensitive gears, like in-ear monitors and high sensitive portable headphones. The volume raises up to 120 steps and can be set to a maximum level to prevent going unintentionally too loud and can be also set to start at a fixed volume.

Majorhifi Review 


Using wired headphones, you can expect 13 hours of playback. And you’ll get 15 hours of usage via Bluetooth connection. The M6 takes 2.5 hours to fully charge.

Supported Codecs

aptXHD, aptX, SBC, LDAC.

Supported Files



You’ll hear two major differences when comparing a high resolution file played on your iPhone to the same track on the M6. 

Firstly, the soundstage felt  wider and more layered or multidimensional on trhe M6. Also, the instruments sounded much less compressed, bringing out details in the track that would be inaudible through the DAC on your iPhone. It’s a much cleaner sound overall. 

Don’t expect the same quality as you would from the M9, since the M9 has two DAC chips that are superior to the single M6 DAC. That being said, if you’re listening to high resolution files, it’s still a significant upgrade from most mobile devices.

Primeaudio Review ( shanling M0 VS Fiio M6?)


Shanling M0

Another miniature wonder and favourite of mine, the M0 contains much of the functionality that the M6 has except for third-party app support.

When it comes to sound, the M0 has a touch more weight in the bass while the M6 puts some emphasis on the midrange – or the midrange sounds more forward because of the M6’s neutral bass (take yourpick). Listening side by side, the M0 is a little bit more coloured in comparison while the M6 is more neutral.

There’s very little difference in it though and both sound awesome, especially considering their small footprints. The M0 has the advantage of being truly minuscule and costing a bit less. The M6, on the other hand, has the edge in user experience, easier navigation and third-party apps. 

The FiiO M6 has four buttons and a multi-touch screen (5 finger sensitive) that allows the full operation of the device.

The buttons are placed on the left edge and on the top edge. The top edge has a single button that turns on/off the device and the screen, the 3 remaining buttons on the left edge control the play/pause function, volume +, volume – and skipping tracks.

On the FiiO M6 you won’t find the volume scroll wheel that the FiiO M9 has, but each click of the volume + or volume – buttons provides the exact same precision of control as the M9’s wheel- and it has the same 120 volume steps.

The 3 side physical buttons can, also, fully control the music playing while the screen is turned off, allowing to: play, pause, increase volume, decrease down, skip to next songs, go back to previous song. The operation with the screen off of any and/or all the side buttons can be disabled through the “Key-lock” settings.

The FiiO M6 is a very easy device to control and use, while the touch screen has the same intuitive gestures as many Android smartphones.

FiiO M6 controls:

Top Edge Button:

  • Press and hold: Power on/off
  • Single press: Lock screen, turn screen on/off

First Side Edge Button:

  •  Single press: Play/pause

Volume +:

  • Single press: 1 volume step up
  • Press and hold: Previous track

Volume -:

  • Single press: 1 volume step up
  • Press and hold: Next track

Touch Screen Gestures:

  • Swipe up from bottom-left: Previous screen
  • Swipe up from bottom-right: Back to Home screen

Moonstar Review 


  1. Hardware:

The FiiO M6 is a very small and slim device with a modern design which features some hardware specs that are common with all other M Series DAP’s with exception of the M3K.

The processor inside the FiiO M6 is the same Samsung Exynos 7270 SoC (System on Chip) that we also know from the FiiO M9 and the M7.

This processor is made on the 14nm FinFET process, which should consume according to FiiO, approx. %20 less power than older chips with 28nm process.

The build-in storage capacity of the FiiO M6 is 4GB (ROM) while 2GB’s are reserved by the Android OS. The FiiO M6 has also 1GB RAM (768MB free for use) same as the M9 and the M7.

The Exynos Process has it’s limit’s and they are some minor slowdowns, while using some third party apps like Tidal or Spotify.

  1. DAC Section:

The FiiO M6 is using the same DAC (Digital to Analog Converter) that you can find inside the FiiO M7. It is the same ES9018Q2C chip of the Company ESS Technology with 32-bit, 2-channel audio D/A (Digital to Analog) converter with built in headphone amplifier and output switch. The SoC (System on a Chip) is designed for audiophile-grade portable applications such as mobile phones and digital music players,

The ES9018Q2C is using the ESS patented 32-bit HyperStream™ DAC architecture and Time Domain Jitter Eliminator. The ES9018Q2C DAC delivers a DNR of up to 121dB and THD+N of -115dB.

The ES9018Q2C DAC’s 32-bit HyperStream™ architecture can handle up to 32-bit 384kHz PCM data via I2S, DSD-11.2MHz data as well as mono. Both synchronous and ASRC (asynchronous sample rate conversion) modes are supported.

The Fiio M6 is using a build in amplifier and LPF (Low Pass Filter), which is implanted to the SoC (System on a Chip) together with the ES9018Q2C and output Switch. The amplifier has a output impedance of 2Ω and a power output of 110mW @ 16Ω, 70mW @ 32Ω  and 7mW @ 300Ω (THD+N<1%). 

Audio Performance

There is something I want to write about first: the M6 DAP has a noise floor of less than 3 uV and a Total Harmonic Distortion (THD) of less than 0.002%. M9 that is almost 3 times the price has the same THD and a noise floor of 5 uV (a little bit worse).

Those are impressive numbers for a 150 USD device.

In real life tests M6 proven to be excellent with all In-Ear Monitors (IEMs) we have tested it with. It also has a less than 2 Ω output impedance that will work great even with very low-impedance IEMs. FiiOs own multidriver balanced armature FA7 IEMS and FH5 hybrids worked very good with it. We heard no noise, no humm, just a clean and open sound without a strong coloration FiiO would use in the past.

The sound overall resembles a lot of what I’ve heard on the M7 with a slightly better control over the headphone drivers due to a higher power output.

Most of the time M6 will be just fine for your typical IEMs or portable headphones, however it will not deliver enough power for desktop class headphones and even for some multi-driver balanced armature-based IEMs.

I connected the FiiOs own FA7 and started a listening spree for several hours in the central park.

Perceived sound was clean, with no additional coloration that led to a flat frequency response. The sound was not laid-back by any means but not super punchy either. In my opinion FA7 puts a big pressure on M6 as it struggles especially with the bass response.

I know Hotel California by Eagles in DSD format very good as it could be a reference for soundstage testing and spatial cues, it also a very good track to test out the punch and low-end response. When first drum kicked, I thought FA7 were goners and broke somehow because there wasn’t that low end that I am familiar with. It is there with M9 even on the SE output, so I know that FA7 are capable of rendering deep bass, but it was not the case with M6.

I switched fast to my Momentum M2.0 and there was it, deep rumbling bass came back and hit hard. The problem lies in the output stage of the M6, its headphone amp is just limited and cannot supply enough voltage for crazy dynamic swings. Multidriver BA IEMs users out there be warned about this. 

Youtube Review ( By ( FiiO M series players comparison) ( So you want an Android-based DAP with Spotify and LDAC support, but don’t want to break the bank? ) (By Bad Guy Good Audio Reviews, you have saw many review from this guy, right ?)  ( Unboxing review by the enthusiastic guy from Audiophile Heaven ) (FiiO M6 vs Hidizs AP80 _(Z Reviews) FiiO M6 versus HiBy R3 — detailed comparison) ( By Fisher Man) ( Unboxing Review )