FiiO X7

fnkcow

Headphoneus Supremus
Pros: Build quality, Interchangeable amp modules, Ease of use, Android Interface, Connectivity
Cons: Potential issues with interchangeable amp module locking mechanism, Features still in progress
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Disclaimer
 
This unit was in my possession for one week as part of the Australasian tour. I'd like to thank @FiiO and @Joe Bloggs for making this tour possible, and @Brooko for organizing and including me in this tour.
 
First and foremost, I would like to let it be known that that the tour unit I received was a pre-production review unit running beta firmware, and the retail version released in the future may differ in the hardware as well as the firmware from what was offered in this tour unit.
 
I listen at relatively high volume level, so my impressions will be based on this. Please be aware that there might be variations in impressions at different volume and issues present on different volume level may/may not exist on this product. As I only use IEMs, I will only comment on its usage with IEMs. No EQ/sound effects were applied throughout duration of having this unit on all devices.
 
Packaging
 
The tour unit came inside a black box as shown below and will change to new packaging for international customers.
 
Unboxing the whole package reveals the following:
 
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  1. Fiio X7
  2. A USB charging / data cable
  3. A digital out to coax cable
  4. 2 spare screen protectors for the X7 (plus one already fitted)
  5. A foldout warranty card
  6. A screwdriver
  7. Spare screws for interchanging amp module
 
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Build
 
Front View
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Back View
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Top View
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Left Side
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Right side
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Bottom View   
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The X7 feels like a solid brick, but in a good way. The design / weight / size combination makes it sit comfortably inside both your hand and your pocket. It is easy to hold and engage the functions. All ports are well labeled. The X7 has a blue light under the screen that stays on when powered on but is customizable with latest firmware. The side buttons are also fully customizable. Display screen is vibrant in colour and easy to read. I took the X7 out for a walk and without adjusting the screen brightness much, it was easily readable under direct sunlight. 
 
One big selling point of the X7 is its patented interchangeable amplifier module. Currently it comes with the Standard (IEM) module: suitable for driving most IEMs, earbuds, portable on-ear earphones and some efficient full-size headphones and impressions will be based on this. However, this is also where my concern lies as this is designed to be detachable so that other future amplifier modules can be swapped by removing a couple of screws, I had difficulty removing one of the default screws and the screw head became stripped. It didn't provide enough grip and is way overtightened in the first place. The other was unscrewed very easily in contrast.
 
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User Interface and Usability
 
The firmware version used at the time was still in beta, with Android version 4.4.4 and impressions were based on this. Future updates will improve aspects of the whole experience.
 
X7 utilises Custom OS based on Android. Those familiar with Android based phones will know what to expect here and navigation feels like any other modern Android phones. It is implemented well, being responsive to touch with virtually no lag. The Fiio music app itself was easy enough to use once I got used to it.
 
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Wifi
 
Wifi connection is reliable and performed well enough with streaming.
 
 
Bluetooth
 
The Bluetooth does not feature apt-x codec and the drop in sound quality compared to plugged in directly into Headphone Out is apparent with slight distortion when music is played. The Bluetooth here is more like an extra feature that is present for convenience sake.
 
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Battery Life
 
Using low gain I got about 9 hours under normal usage and continuous play. Using high gain instead I got almost 8 hours. Pretty impressive for such a small unit compared to other DAPs of similar calibre.
 
X7 doesn't warm up much after continuous use like some DAPs do. I only realized this is a win for Fiio users after having the likes of N6 which can get very warm and would be a bother to those who put it inside their clothes' pockets and during hot summer.  
 
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USB DAC
 
At this point in time the USB DAC is not enabled yet and future firmware releases will feature this.
 
Sound Impressions
 
Headphone Out (Unamped)
 
As the X7 offers plenty of juice for my efficient IEMs, I didn't test adding any extra amps hence I'll only comment on impressions formed using Headphone Out. 
 
Using my 1964 Ears ADEL A12 with somewhat high sensitivity (16 Ohms impedance and 117dB SPL @ 1mW) and other IEMs of similar sensitivity, I don't hear any noticeable hiss against the backdrop of a very black background. 
 
The soundstage of the X7 is oval-shaped, taking up a 3D footprint both high and deep, where it focuses more on the depth than width. It sounds intimate and yet still provides solid layering and positioning. Resolving ability is good with plenty of details and fast attack. It nails about as much detail in every frequency, meaning that music with a huge dynamic range will sound detailed, clear, and well spaced. The bass decay could be a bit longer, but bass hits hard with good impact and texture, but I wont say overly so as to affect the rest of the frequency. Only when dealing with songs with big bass that it becomes a bit too overpowering. X7 to me is a neutral sound signature leaning a bit towards musicality with a tinge of warmth and slight detail preference to the mid range. This is also reflected in its forward sounding meaty mids, with meaty as in sounding a bit thick with slight veil masking small details. Vocals are rendered with full body and realism without being digital sounding. In some songs the vocals sounds a bit shouty. Treble is smooth and a touch rolled off, slightly soft resulting loss in headroom space and airiness. 
 
Sound Comparisons 
 

 
All comparisons were done using a Multi-channel Headphone Audio Signal Switcher to enable fast switching between DAPs, and a 1kHz test tone was tested using a Digital Sound Level Meter to do the volume matching between DAPs to ensure a level playing field under controlled condtitions. 
 
Fiio X7 vs Cayin N6
 
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Against the N6: The N6 has a slightly bigger soundstage due to having better airiness, with similar positioning and layering, but at the expense of sounding leaner in comparison and having less body, giving the X7 a sense of a more organic and fuller sound. 
 
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Ratings & Conclusion
 
As Head-Fi shows overall ratings for the audio gear instead of my own, here is a snapshot of what I have rated:
 
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All in all, the X7 is a very solid DAP based on Android OS with good hardware, sound, build quality and an intuitive and well-thought menu design as well as operation and has got a good overall value. It is an awesome sounding DAP that one day, once the issues and minor caveats have been ironed out, will belong in summit-fi. The future remains bright with upcoming releases of a variety of interchangeable amp modules that will offer new dimensions and sound tweaks to the X7. 
 
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RockStar2005
RockStar2005
fnkcow, 
 
Great review!
 
I have 2 questions: 
 
1) Has FiiO released an update for the X7 that INCLUDES aptX yet? Or any word on that? 
 
2) Any update on the interchangeable amp module/mod? If so, where can people buy one??
 
Thanks!
RockStar2005
RockStar2005
3) Also, will the current IEM amp mod the X7 comes with be strong enough to play a pair of headphones with 102 db sensitivity and 32 ohms LOUD??
RockStar2005
RockStar2005
*32 Ohms impedance 
Pros: Android Market, Amplifier module options (primarily the AM3), Phenomenal sound quality, Offers a lot for the asking price
Cons: Still some minor software bugs with Android applications, Not the fastest and most responsive processing power
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At the time this review was edited, the Fiio X7 was listed for sale on Amazon. Here is a link for purchases of not only the X7, but the somewhat recently released amplifier modules and accessories that I will discuss as well:
 
Fiio X7:
https://www.amazon.com/X7-Hi-Res-Lossless-Player-Titanium/dp/B017SBSOB0/ref=sr_1_1?ie=UTF8&qid=1477112078&sr=8-1&keywords=fiio+x7
 
High power amplifier module, AM5:
https://www.amazon.com/Power-Headphone-Amplifier-Module-Titanium/dp/B01F1L2V5Y/ref=sr_1_4?ie=UTF8&qid=1477153040&sr=8-4&keywords=fiio+x7
  1. MUSES02 operational amplifier for voltage amplification
  2. TPA6120A2 buffer stage
  3. Ultra-high current drive (250mA) and ultra-low noise and distortion
  4. Separate positive and negative pole power supplies
  5. Power Output: >500mW (16Ohm @1kHz)

 
Balanced output amplifier module, AM3:
https://www.amazon.com/Balanced-Output-Headphone-Amplifier-Titanium/dp/B01H18RDBM/ref=sr_1_10?ie=UTF8&qid=1477153040&sr=8-10&keywords=fiio+x7
  1. Newly launched Burr-Brown OPA1622 from Texas Instrument
  2. Six OPA1622 chips are incorporated to achieve full stereo 2.5mm TRRS balanced output as well as 3.5mm single-ended output
  3. Ultra-low THD+N of -119.2dB (0.000018%) into a 32 Ohm load at 10 mW output
  4. Separate positive and negative pole power supplies
  5. Balanced Power Output: >540mW (32hm @1kHz), Single-Ended Power Output: >250mW (16 Ohm @1kHz)
 
Medium power amplifier module, AM2:
https://www.amazon.com/Medium-Headphone-Amplifier-Module-Titanium/dp/B01DH3T7IC/ref=sr_1_13?ie=UTF8&qid=1477153040&sr=8-13&keywords=fiio+x7
  1. MUSES02 operational amplifier for voltage amplification
  2. BUF634 buffer stage
  3. Ultra-high current drive (250mA) and ultra-low noise and distortion
  4. Separate positive and negative pole power supplies
  5. Power Output: >350mW (16Ohm @1kHz)
 
K5 desktop docking station:
https://www.amazon.com/K5-Docking-Headphone-Amplifier-Titanium/dp/B01BBX1NNM/ref=sr_1_1?ie=UTF8&qid=1477153843&sr=8-1&keywords=fiio+k5
  1. This Item Includes: FiiO K5 Docking Headphone Amplifier/DAC - Power Supply - FiiO 1 Year Limited Warranty
  2. Headphone Port: 6.35mm stereo Jack
  3. Drive Ability: 16-300 Ohms
  4. Volume Control: Via analog potentiometer (incl. power switch)
  5. Gain: Low: 0dB Mid: 6dBHigh: 12dB
 
Dignis Leather Case for X7:
https://www.amazon.com/Dignis-Fiio-Leather-Case-Color/dp/B01B2HYOWE/ref=sr_1_1?ie=UTF8&qid=1477265172&sr=8-1&keywords=fiio+x7+case

 
Introduction
I’m not a huge follower of DAPs for the most part. I have several reasons for this. In today’s day and age the smartphone is taking the place of most DAPs. Yes, you can argue this philosophy and say that DAPs offer better file support and more premium chips. I can counter this by saying that phones like the 32 bit DAC of the LG V10, or audio oriented HTC 10 and ZTE Axon 7 are coming close and in some ways trumping what many DAP manufacturers are offering.
 
The other argument is that it’s important to separate the smartphone experience from enjoying a high fidelity audio experience. We live in 2016 where Tidal and other streaming services are very relevant. Not everyone thinks we should only shell out a small fortune for FLAC and DSD downloads. On top of this, we want to be able to utilize modern technology and apply it to our music experience. We live in a world that is going wireless. We are almost all online, using smartphone applications on a regular basis.
 
So what should be the next step? What does the audiophile need in today’s day and age? At what point are we sacrificing sound quality for technology and vica versa? I guess that comes down to what your individual preferences are.
 
For me, I try to find players that take the best aspects from each piece of electronics and combines them into an all-in-one solution. I want FLAC and DSD playback, I want DAC/Amplifier capability, I want bluetooth, I want the ability to drive any in-ear monitor or headphone I have. I want third party streaming services and a easy to use interface. Simply put, if I’m going to shell out cash on a DAP, it’s going to be on something that takes my music listening experience beyond my LG V10. This is no easy feat. The V10 is an incredible device for audiophiles.
 
When Fiio first introduced the X7 I was enamored by the concepts going into the device. From what I heard and read about the unit, I assumed this was going to be the answer to my desires when it comes to DAPs. I volunteered to lead off in the X7 launch tour November of last year, and was honestly disappointed. The integration of Android was not the greatest. I enjoyed the stock application and the sound quality, but was let down by the fact that the Android market was not installed, forcing users to search for and install APK files to stream music. The new amplifier modules were not released, and the unit had some design flaws that made me concerned. I wrote a three and a half star review (which could have easily been a three star review). At the time, the X7 was an incomplete product that didn’t live up to the hype.
 
Months passed after that review, and I was left wondering if Fiio was putting more touches into the product with upgraded firmware and hardware. When I saw Jack from TEKFX at the Axpona Audio exhibit in April of this year, I had a chance to revisit the device. There were some pleasant surprises, with the most noticeable one being the implementation of the Android market. When I saw this upgrade, as well as new amplifier modules I knew that my review was outdated and my previous experience would do the X7 an injustice to potential buyers. I showed Jack the review and discussed that it would be nice to right the wrongs in my review just as Fiio had done by making improvements to the unit. Jack agreed to loan me an X7 to test and review, along with the AM2 and AM3 amplifier modules. I am now ready to shed new light on the revamped X7.
 
The X7 has a plethora of reviews so at this point I don’t feel it’s imperative to break things down or go as invasive as an inaugural review. If you need to go step by step of each aspect of the device please reference one of the following reviews:
 
http://www.head-fi.org/products/fiio-x7/reviews/14456
 
http://www.head-fi.org/products/fiio-x7/reviews/14660
 
As for the edit to this review, I will leave my initial review in small font at the bottom of my edit, and point out why I am not only increasing the rating, but also explain the reasons why.
 
ANDROID MARKET
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Look, I get it, some people don’t want a second cell phone. Still, Android market is awesome and having the ability to easily download and install our favorite music streaming applications is important. For me, my favorite streaming application is Google Music.  For others it’s Tidal, Spotify and Pandora as well as many others. The list goes on and on. Long story short, the APK days are over for the X7. We have Google Play services, and access to hundreds of applications. Having applications went from being a pain in the butt to a pleasant experience and opportunity to customize each X7 owner to customize their music experience.
 
NOTE: Although this is a huge improvement from what I’ve experienced in the past, it still has some bugs. Google Play services crashes from time to time. The device doesn’t have the processing power to handle a bunch of applications, so X7 owners still must choose the ones that matter most and keep their app cache under control without overloading the X7 and making it lag out. I’m crossing my fingers, hoping that Fiio can address these bugs with future firmwares.
 
ACCESSORIES
Fiio launched the X7 with the AM1 amplifier module. Yes, it sounded really good with in-ear monitors, but to be honest the buck stopped there. There wasn’t a lot to say beyond this. Today, Fiio offers an accessories line that gives X7 owners an opportunity to customize their product. Let’s go over each accessory.
 
FIIO K5
The X7 has a place to call home when it reaches the desk of audiophiles, and it’s called the K5. No, I don’t have a review sample, but seeing it at shows I’ll say the thing makes sense. It operates as a docking station for the X7, allowing owners to use it for music playback, file transfers, and a charging station for the X7. It’s an all-in-one desktop companion\solution. Kudos for this Fiio, you done good with this one!
 
AMPLIFIER MODULES
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*Fiio X7 with AM2 (left) and AM3 (right) amplifier modules installed
 
There are now four amplifier modules to choose from. This has taken the stock player with AM1 chip and made its driving power much more versatile. Let’s take a brief look at each module.
 
AM1
The AM1 is the stock amp that comes with the X7. It is the “low power” module. I consider this module to be ideal for in-ear monitors and low impedance headphones. You aren’t going to get the most out of your power hungry high impedance cans with the AM1.
 
AM2
This is the “medium power” module, offering increased power over the AM1. I would recommend this amplifier who listen to mostly full size headphones that aren’t incredibly power hungry. This module offers a little too much power for sensitive in-ear monitors IMHO.
 
AM3
Of the amplifier modules I was able to sample this one is by far my favorite. The bottom of the modules comes with two different outputs. One is a 2.5 mm balanced output that  has some serious output power (540mW, 32 Ohms @ 1kHz). There is also a 3.5 mm single ended output that puts out less power (250 mW, 16 Ohms @ 1kHz). What does this mean? It means that with the right jack used and possibly adapter applied, you can drive just about anything. And for the balanced output? It sounds awesome! Of all the things that Fiio has done to improve the X7 this module is right up there with the application of the Android Market. The combination of these two things makes the X7 one of the best players you can get your hands on in today’s market.
 
AM5
I didn’t get my hands on the AM5, but from the description I can draw a conclusion of it’s capabilities. Pushing 500 mW at 16 Ohms, I assume this unit will push almost any high impedance headphone, but will be too much power for most low power earphones. If you plan on using your X7 with your pairs of 300 Ohm and above headphones and not much else, you should consider this module.
 
CASES
When the X7 tour was going on, there was virtually no accessories that came with the X7. Anyone who has had a chance to hold the X7 in their hand would understand my concern in regards to the device’s build The thing is built like a small brick and feels very solid in the hand, but the glass screen goes right to the edge of the device. Combine the X7’s weight with the screen design, and it gives the impression that it’s one drop away from the screen cracking. I had to baby my review sample the last time I had it. Now, there’s case options for the X7 that will make the X7 better withstand daily abuse and the test of time.
 
Conclusion
The accessories options make the X7 more expensive than the stock unit, but it puts the option out there for you to customize your device. The X7 is not yet what I would consider perfect. I don’t think the button layout is ideal, and there are still some minor software bugs that need to be worked out. On top of all of this, the processing power of the X7 should be more powerful. At the end of the day, when used in Android mode the X7 slower and less responsive than most of today’s smartphones. However, when used with just the stock player it works phenomenally. Speaking of which, the stock music application is awesome. Those who don’t want the Android Market and music streaming aspect to be a part of their listening experience will really enjoy the stock music application.
 
I personally feel the X7 was rushed to market. Review tours were conducted before the X7 was a complete product. With the added accessories and Android Market, the X7 is an entirely different device, and something I can now say I recommend. In all honesty, at the moment and in terms of price to performance, the X7 and AM3 is one of the best deals around in my opinion. It gives me that “best of both worlds” approach when it comes to what I look for in a DAP
 
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Thanks for reading and happy listening!
 
Here is the original review written in November of 2015. Please note that this was the initial impressions posted. Let it be more of a flashback to remind you of how far the X7 has come since its release:
 
We’ve been waiting…
 
And waiting…
 
And waiting…
 
And waiting…
 
But finally it’s here! The X7 is finally happening! I have been anticipating this for a looooooong time!
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We’ve participated in the threads. We’ve read the speculations and rumors. We’ve also read the online pissing contests and arguments made by some Head-Fi participants. It’s been quite a roller coaster to this point!
 
I’ve made some outrageous claims as far as what I’d do to be a part of the initial beta tour. Luckily, I didn’t have to eat any turds, slap my mama, or name my next born child FiiO in order to be a part of this tour (thanks guys)
 
And now, finally (and thankfully) I have the honor and pleasure to experience the X7 and share it with the Head-Fi community. Here we go….
 
First and foremost, thank you to all the good guys at Fiio for your patience and consideration. Thank you for the opportunity to try the new X7 out, and also for letting the Head-Fi community be a part of this endeavor from the very beginning. There aren't many companies that allows the suggestions and input of the Head-Fi community weigh so heavily in the outcome and development of their products. Big ups FiiO!
 
I was given an opportunity to sample the X7 in exchange for my honest opinion and review. I am in no way affiliated with FiiO.
 
Before break into the package, let it be known that this is a BETA TESTING TOUR. In the fifteen days I’ve had with the product, I’ve downloaded three firmware updates, and I’m fairly confident that this isn’t going to be the last firmware installed before the official U.S. release of the X7. I don’t consider this to be a comprehensive review, but more of a initial impressions write up.
 
The X7 came in a simple black box with a picture of the X7. The  back of the box had a listing of the X7 key features written in both Chinese and English. Also included in the package was a separate paper folder addressed to “X7 Reviewer” from Fiio, explaining the process and story behind the Fiio X7 project along with key features. This is a great read that I suggest ALL reviewers on this tour take the time to flip through.
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*Front
 
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*Back
 
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*Supplied Accessories
 
Key Features (as noted by FiiO)
*FiiO’s first Android-based DAP
*Android DAP that bypasses Android’s sample rate conversion
*First DAP with Android/Pure music mode switch
*High-impact 3.97” 480X800 multitouch functions
*1 GB RAM, quad-core Cortex-A9 for smooth music under all circumstances
*RK3188 SoC+ES9018S DAC+OPA1612 buffer, no compromises throughout the audio chain
*Highly Customized music APP
*Symmetrical button layout enabling custom button mappings
*Patent pending exchangeable headphone amp module; docking connector to desktop amplifier
*Supports WIFI/Bluetooth 4.0 + Enhanced Data Rate (EDR), expanding your music horizons wirelessly
*6061 aluminium + advanced CNC processing, pursuing perfections from materials to machining
*Ergonomic body design, well sized and shaped for single-handed holding and operation
*Innovative mirror finished edge + reflective status light
*Well-sized 3500mAh battery for 9 hours of playtime
*Two years of research from FiiO’s professional audio development team
*FiiO’s quality assurance
 
FiiO has broken away from its conventional scroll wheel operation and vanilla user interface. This is Fiio’s attempt at a touch screen DAP. The device on a whole is heavy and feels very solid, like a brick of metal in the hand. All materials are top notch. Aluminum housing and a solid screen I would assume is gorilla glass. There are three buttons on each side and are mirror images of each other on each side. The left side is volume and power. The right side is skip tracks and play/pause. SD card access is located on the left side of the device.
 
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*Left Side
 
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*Right Side
 
NOTE: Although I find the X7 to be a sturdy build, the raised glass screen is a big red flag for me. It appears to be a drop away from having a cracked screen or some sort of damage. I am hoping that FiiO releases a shockproof case for the X7 to give reassurance to owners who have concerns of how the X7 will handle being accidentally dropped.
 
NOTE: I was disappointed that the X7 didn't have an analog volume pot. To adjust the volume when the screen isn't active I have to repeatedly press the volume button. I personally feel that all higher end DAPs need to have an analog volume pot. Your mileage may vary.
 
Firing up the unit you are greeted with a custom Fiio welcoming screen which leads to the typical folder style menu of most android devices. However, the folder selection is minimal and only features the folders essential for running the Android operating system. I’m not going to focus on the function of these folders, as there are many other things to cover in this review. Just know that they are basic Android folders and a tab for the FiiO music application.
 
Using Android OS in a high fidelity DAP creates it’s own set of problems. Android has a process of downsampling music to a lower bit rate to cooperate with the rest of the operating system and its applications. What Fiio has done with its music app is created a way of taking over the Android audio subsystem, allowing the app to play all music files in their native form. With this being said the X7 is able to play every file format I threw at it, including DSD and FLAC.
 
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*Tapping on the album artwork displays the file's bit rate.
 
The X7 has one GB of RAM, which by today’s standards isn’t very much, especially considering we are dealing with an Android device. To counteract this Fiio has two modes of operation. If you want to maximize the RAM users can disable various Android operations by using “Music Mode”. This can be accessed by pulling down from the customized menu from the upper right hand part of the screen, selecting the Music Mode button, then rebooting the device. There are also several other options on this display. This menu is hidden by dragging the menu back up to the top. The android version of this screen can be accessed by pulling down the menu screen from the top left (displaying all running apps). This menu is also closed the same way.
 
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*Left Side Drop Menu
 
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*Right Side Drop Menu
 
The display of the X7 isn’t the sharpest display I’ve seen, and not on par with most current Android Phone releases, but I find it perfectly adequate at the same time. Colors are sharp and vibrant and It works pretty well outdoors. Contrast was excellent.
 
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*The X7 has a blue light under the screen that stays on the entire time the unit is powered up (even in standby mode). I’m hoping FiiO will provide an option to turn this light off, or at least dim the light.
 
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*The top of the unit has a line out that works as a standard line out, or as digital coaxial line out (when used with the supplied digital coax adapter). Because the DAC and interchangeable amp module is so good, I see no reason to use this beyond plugging the X7 into a external stereo system, or to a high power desktop set up.
 
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*I assume the X7 will be able to be used as an external DAC/Amplifier to be hooked up to computers and other sources, but as of my last day with the unit I wasn’t able to do so. What you see here is the Micro USB input for charging and data transfer, along with the 3.5 mm headphone jack.
 
The X7 is a mixed bag for me in terms of operation. While I was hoping for more in terms of Android support, but there’s no denying the sound quality this thing can pump out.
 
The Fiio Music Application
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*Single Song Menu (note the various sort order options on the top of the screen)
*Alphabetical options from left to right are Single Song, Artist, Album, Genre, File Folder (SD or Internal Memory)
 
The Fiio music app is a nice app, but still has its fair amount of bugs. Although not perfect, I didn’t have too many problems with the user interface. I think their concepts are clever and well thought out. After installing my preloaded SD (supports up to 128 GB) card I was able to access all my music via a folder tab on the app. The X7 identified and played every music file I had loaded on my SD card, including FLAC and DSD.
 
What struck a nerve was the file sorting order. I assume the normal way of navigating through in most cases should be Artist/Album/Song. What Fiio does is Artist, then goes to a list of all songs from that artist regardless of album. There was a button option on the upper right hand part of the screen to sort them into album after choosing the artist, but I found this to be an annoyance and unneeded extra step towards the same outcome. I’m hoping this is fixed.
 
NOTE: If you do want to access the memory card the exact way it was loaded (Usually will be Artist/Album/Track) it can be done via a folder tab in the upper right corner of the music sorting options file by accessing the internal memory or SD card. Choose the SD card option and files will be displayed just as they were initially loaded on the card.
 
Another bug was that after playing music with the Fiio music application for an extended amount of time the app simply would not close. In order to get back to the android home screen I had to turn the X7 off and back on. Also, after playing music for a considerable amount of time after the screen has gone blank, the play and pause but was unresponsive. These are both minor and I assume FiiO is going to fix both with their next firmware update.
 
There are some other bugs with the Music application but I consider them to be minor. One thing I would hope to see with a firmware upgrade would be to see FiiO make the volume adjustment a sliding adjustment by pressing on the displayed volume and dragging this number up or down, similar to A&K DAPs.
 
NOW, let’s discuss the good things about the user interface I really enjoyed. Aside from the identified Artist/Album/Song issue I’ve brought up, the rest of the sorting options and displays are pretty masterfully done. When playing a song from an album (in single song display mode) I can access songs from the designated sorting order by dragging my finger from the left border. In this there was the equalizer, bluetooth, favorites, delete and information tab as well as Play, Pause and Skip tracks options. Dragging a finger from the right side of the screen during this display accessed the on screen volume control.
 
There didn’t seem to be much in lag or delay when selecting tabs. I did however have instances when I would press on the screen and it didn’t register and I would have to press the tab again.
 
The Fiio app equalizer is pretty cool. It’s a ten band equalizer that shows a smoothed rendering of your settings on the top of the display. There are several preset displays aside from whatever custom setting you would want to apply.
 
20151105_114842.jpg
*Ten band equalizer with smoothed over setting display up top
 
There is a settings menu on the music application that is pretty fantastic. Key features are an on  and off timer, gapless playback option, gain settings, play through folders, and UI personalization.
 
With all the identified negatives being said, please don’t let that take away from the thing that will make the X7 truly special. The sound quality of the X7 is FANTASTIC, despite the fact that at first listen it seemed a bit sterile to my ears.
 
The X7 came shipped with the IEM amplifier module, which is replaceable with separate amplifier modules that will Fiio will be offering. While I feel this amplifier didn’t unleash the full potential of the X7, I could tell by listening to it that the X7 used the ES9018 chip masterfully.
 
20151114_074234.jpg
*Detached (and interchangeable) Amplifier Mudule
 
One thing I did notice while using the X7 is that it will get pretty warm if you keep it in your pocket while listening to music. In the winter it will make a great pocket hand warmer. In the summer it will be as welcomed as a loud and stinky fart in the middle of church service.  
 
With the IEM amplifier configuration the X7 sits right in the middle of warm and cold. It is a very neutral, transparent and detailed sound. I feel the X7 was able to make even my my worst bit rate files sound almost like they were upsampled to sound their best potential. The X7 seemed to be able to handle sibilance better than other players I have used.
 
Because the X7 came with the IEM amp module I used mostly in-ear monitors and easy to drive headphones. There really wasn’t any type of “synergy” type of things to speak of. The X7 is brutally honest with whatever you’re using with them. Bright earphones will be bright, warm will be warm, neutral will be neutral and so on. I could see this making a great device for review purposes because of this neutral and pretty colorless presentation. I made sure to use several in-ear monitors, and my favorite pairings with the X7 were more neutral monitors like the Ostry KC06 and Zero Audio Carbo Tenore.
 
Android Functionality
This is where I must admit I was pretty disappointed. Simply put, the X7 has an Android operating system, but doesn’t utilize Google Play Services or the Google play store, leaving me wanting more, much more than what my options are in terms of applications beyond the stock Fiio music application.
 
Applications are can be downloaded via APK files (bypassing the Google Play Services and Play Store). If you are wondering what APK files are, here is a link:
 
https://en.wikipedia.org/wiki/Android_application_package
 
The drawback to this is that it leaves it up to the owner to search and download APKs. This also means that updates will have to be searched and installed by the owner without any notifications of updates being available.
 
Only particular applications will work. If an application needs Google Play Services to operate they won’t work on the X7. For example, when I tried to install Google Music, upon installation I was prompted with a notification that I wouldn’t be able to access all features of the application. I was able to open the app and listen to music that was installed on my device, but I couldn’t access my online music library or stream music from the web.
 
20151105_111610.jpg
*Shucks...
 
On a more positive note, I was able to install and use Tidal and Spotify with no problem. All streaming worked flawlessly. There are many apps that will work with the X7, including some streaming apps (via WIFI). My time with the device was limited, so I can’t elaborate too much. Just know that the APK compatibility is a work in progress. If Google Play Services and Android Market are not going to be available on the X7, I’m hoping FiiO will make an APK directory for X7 owners, making downloading and installing applications a more convenient and enjoyable process.
 
20151105_112836.jpg
*Tidal on full display
 
Conclusion
At this point the X7 is still a work in progress rather than a finished package, so I can say that in the short time I’ve had with the unit there is not a final verdict from me.
 
I think FiiO has taken a huge step forward in terms of product development by breaking away from their conventional style of DAPs, offering a more modern device with improved sound quality. However, this is also coming with it’s own unique and new set of challenges for them to face moving forward.
 
Android’s operating system and WIFI capability is going to give Fiio further opportunities to update and improve their product via firmware updates, even after the device is sold and in the owner’s hands. That combined with the chipset and interchangeable amplifier modules, they’ve created a very versatile and awesome sounding unit. Their fidelity rivals rivals just about any portable I’ve heard to this date.
 
What leaves me on the fence is the Android aspect of this device. I am left wondering how the masses feel it competes against the likes of the players like the HUM Pervasion, Five year old Sony F series walkman (and inevitably dropping price of the ZX1 and ZX2), newly released and similarly priced ONKYO DP-X1,  as well as other Android based DAPs that are yet to be released. Please note, this has nothing to do with Fidelity and it’s performance in terms of sheer sound quality. It has more to do with the players ability to combine the full Android experience with the type of phenomenal sound quality that the X7 has. With today’s technological advancements in mobile devices, my next purchase will be based on what DAP can best integrate both aspects.
 
To summarize, the X7 is a DAP will play up to approximately 150 GB of music (between internal and maximum SD capacity) and make it sound phenomenal. They offer their own new and pretty well designed stock music application that many will enjoy. The ability to download and install APK files and stream music is an added bonus. Some will not care for the fact that FiiO doesn’t offer the full Android experience (Google Play Services and Android Market) while others will applaud it for the exact same reason. Rather than being an android device with phenomenal sound quality, it is a phenomenal sound quality device with limited Android APK file capability.
 
Kudos to FiiO for their hard work on the X7 project and choice to take a step forward in terms of technology. I look forward to seeing what is to come with future firmware updates and alternative amplifier modules.
 
20151105_105451.jpg
 
Thanks for reading and happy listening!
 
NOTE: The bottom half of this review is the initial impressions posted in November of 2015. Please read the top of the review to see the changes and improvements made to the device. 
Pewterlocks
Pewterlocks
For all of you talking about the " playstore app" not able to be used. Try downloading the aptoide app,it is a stand alone app store like the play store. All the apps are free, as it is run like a file sharing site,but Aptoide has their own security which moniters,imho quite well,as i have never had an issue with apps from the Aptoide store.
Where you may run into problems is when you start adding more store into the Aptoide collective,but the Aptoide security clearly marks every app\ store with the applicable warning.
This is a quick write up regarding Aptoide,feel free to contact me for more info.
Hisoundfi
Hisoundfi
Greetings all who read this review. An edit has been made to note the improvements Fiio has made to this device. Please read the top portion of this review to note the changes made.
Brooko
Brooko
Vince - the AM5 has no issues driving sensitive earphones either. The volume control has enough play, and the amp is sufficiently low noise that it can be a jack of all trades. You do trade off some battery life - and the amp is a little warmer than the AM1/AM3

vaibhavp

500+ Head-Fier
Pros: Full sized and capable in built amp, clear and detailed line out
Cons: some may find it to be too large
Note: I was part of X7 international tour. I thank Fiio for giving me this opportunity to test and use potentially higher end gear for 10 days time. It is on its way to next member on tour.
 
INTRODUCTION
 
I was very excited to be part of Fiio X7 international tour. However, when I learned it was going to ship with iem module, I was less than thrilled. Being mainly a full sized hp guy, I simply don't have good enough iems to test a dap that sells for $650. However, when I actually received X7 all my worries were laid to rest. IEM module drives full sized easy to drive cans with authority and ease. I used its hp out as well as line out to drive my external amps.
 
 
 
DSC_0005.jpg
A pic showing gear I used to test and compare X7
 
 
WHAT i EXPECTED vs WHAT i GOT
 
Looking at X7 thread on headfi I see a lot of people expecting fiio to produce an Astell and Kern beater. In what metrics is not clear. To me is X7 is unabashedly fiio. Its quiet clear after reading literature supplied for tour from fiio and using it for 10 days, where main focus was while designing the payer. X7 offers a capable, no compromise built in amp. Its build is great and a step up over X5 but I dont think its the best out there. Curiously its form factor is on a bigger side. I do think to give it all functionality and great amp it has, fiio made it bigger rather than compromising anywhere. This is by no means audio jewellery and it does costs on a higher side, it has sound quality to match it.
 
UI
 
I encourage reader to look elsewhere for in depth look over the UI. I personally listen to albums from back to back and use folder view to find music. So my expectations from UI are very low. In DAP UI I only look for 2 things:
 
Get the Job done.
Is Rock solid.
 
First point is easily achieved as its based on android. I simply choose folder view that shows all folders in memory. From there I simply browse album I want to listen to. No fuss. For second part, I used it for only 10 days and I didnt encountered any hiccups or freeze. I must say fiio's record has been less than stellar. My X5 is behaving differently to scroll wheel inputs over time. It improves with firmware update so the problem is with software.
 
I really wish fiio use software from previous daps wholesale and keep improving the stability of their software. But the rate at which fiio is introducing new daps with brand new uis, I dont think its gonna happen any time soon.  
 
BUILD
 
Fiio did the unthinkable here. Its substantially longer and thicker than X5 which people though was already on bigger side. The build is slightly improved over X5, but when E12 that sells for $130 is build so well, I expected a bigger jump. This aspect goes a long way in showing how well made budget gear is. Looks like diminishing returns is applicable to sound quality as well as build quality here. I do wish unit had round edges for ergonomic grip as well as different texture on back plate. One aspect I loved about it was vibrant, responsive screen, rather close to my smartphone than I expected. Resolution is not very high but I was impressed by big album art on now playing screen.
 
When talking about build, I think I can put up a lot of points like its too big, screen is raised, and screen has black borders around it etc. I personally dont think these aspects will make even slight difference over my purchase decision of an audiophile dap. One audiophile complain I do have is lack of analog volume control wheel. The price point X7 is playing at, I think a proper wheel with good knob feel should be present. 
 
SOUND QUALITY
 
Initially I was sceptical about sabre chip used in dac. Some people have reported about some digital and bright sounding implementations using them. However the amount of warmth X7 has points towards a very nice implementation. It strikes a nice balance between earthy and ethereal sounding. It leans towards clarity in both bass and mids. Treble extension is great and is usable with neutral to warm headphones to my ears. Bright sounding hps do sound too bright to me like my Sennheiser HD700. Mids are meaty, thick, clear and smooth. Bass is reference quality with great clarity. Thickness or thinness depends on instrument being played. Has good presence and not bass light. Goes deep but not like my desktop amp.
 
X7 VS X5 Classic
 
I prefer X5 classic over X5 II. X5 classic has a very analogue sounding treble (maybe a bit shelved down) thats perfect with my hps. Newer fiio gear has different more neutral tuning than their older gear and I think X7 is a direct upgrade over X5II rather than older X5. 
Out of hp out, I dont think there is much competition. Even with iem module, X7 has better authority and more effortless sound with my full sized hps. X7 lets me hear deeper into recordings, more meat around bones. Hp out of X5 sounds thinner in comparison while X7 sounds meaty and resolved, more akin to live performance with less compromises.
Using X5+E12 combination against X7, sound quality battle is very close with perhaps slight edge to stack. X7 on its own sounds effortless, thick and resolved, signs of quality amplification. I think a big size does results in space needed for good implementation as is evident with X7. X5 + E12  sounds slightly more effortless and relaxed. But its a very close call. To note I regard X5+E12 stack very highly and think it paints realistic enough picture of music that I can live with it for very long time.
 
Pitting X7+ E12 vs X5+E12, I think E12 hits performance ceiling with X5, which results in  little improvement when switching to X7. Sound signature wise, their line out has different characteristics and allows me to compare them using same filter (or colouration). Using X5 stack, bass hits harder, depth is almost same but clarity is much better with X7. X7 also sounds more true to source and changes thickness or thinness more dramatically. Mid range is a tie on both. X7 stack is clearer and smoother while X5 stack has more realistic bass weight behind each note. Treble is subdued on X5 while its prominent and extended on X7 stack. Choose depending on your hps and taste. Timber is lot better on X7 stack with X7 highlighting inherent sound qualities and details instruments much better.
 
These characteristics are present with hp out of X7 as well but become more obvious with slight effortlessness of E12. Overall I would say use an external amp with X7 only if its very high quality  or you want a specific colouration like tubes. X5 improves dramatically with E12 but is not the case with X7 as its in built amp is already pretty good.
 
SHOULD YOU BUY ONE?
 
You should buy one if you mainly use flagship level amps and hps/iems. Improvements X7 brings were lot more obvious with hd 700 that with my other gear. Also consider it if you intend to use it without external amp most of the time. However its excellent line out opens potential for even greater things and lets be honest here, who expects manufacturer to cram in amp in that much space that will eke out every last bit of performance on tap from very capable dac? Though I must say fiio did an excellent job in that regards.
I have been using fiio gear for some time and I do think their stuff sounds great. They do make lots of inexpensive gear but that alone does not makes them so popular as there is lot of gear out there thats even more inexpensive. I do find their nicer gear (like X5 and E12 I have) to have a mature sound that I can enjoy for very long time. I think thats why their popularity has stood the test of time. This quality is there in X7 in spades.
 
Thanks for reading!

x RELIC x

Headphoneus Supremus
Pros: Great Sound at a Good Price - Touch Interface - Swappable Amp Modules - Very Detailed Music Reproduction - Dynamic Sound
Cons: Battery Life - One mSD Storage Slot - Button Layout
FrontDefocus.jpg
 
BackDefocus.jpg
 
 
 
Disclamer
 
The FiiO X7 was provided to me as a part of the FiiO X7 World Preview Tour in exchange for my impressions and honest opinion of the device. It has since left my possession and is in the hands of the next reviewers. I am in no way affiliated with FiiO and at this time do not own the X7. I'd like to thank @Joe Bloggs of FiiO for the opportunity to review the X7. This review is based entirely on my impressions and your impressions may be different from mine.
 
 
About Me (Frame of Reference)
 
I am an audio enthusiast in my mid forties and have enjoyed listening to music since my youth with vinyl, cassettes, and later CDs and digital files. I listen to wide variety of music from a perspective of losing myself to the experience. At times I like to be transported to different states of mind or emotion in the case of classical and OST recordings. Other times I go to the venue in the case of live recordings, binaural+, or studio sessions. Some times I just like to rock out. Every time, however, I want the clearest and most natural representation of the music that I can afford. If the track has thumping bass I want to hear it. If the track is complex with many instruments I want to hear each one. I listen critically often but also appreciate timbre and musicality. 
 
I've used Sony Walkman cassette players, mini disc players, Sansa Clip+, iPod classics, iPhones etc., over the years as my portable devices, and I have 'grown up' with headphones in my ears and players at my side. My first digital high resolution player was the FiiO X3 first generation. My current daily portable player is the AK240 and I enjoy it for its interface, musicality, refinement, and it's pairing with my JH Angie IEM.
 
 
FiiO X7 Links to Specifications and Tutorials
 
There are many reviews already about the X7 and since the unit is now fully released globally I won't re-hash or give outdated information in my review of a preview unit. Instead I'll provide links to the FiiO X7's product page and interface tutorials. Everything you need to know about the product can be found there.
 
Product Page LINK
 
Interface Tutorials LINK
 
App Installation LINK
 
 
Packaging
 
X7BoxFront.jpg X7BoxBackWide.jpg X7_BoxOpen.jpg
Standard FiiO packaging here.
 
The packaging of the preview unit I received is pretty much what the retail unit looks like. I do notice that there are different female models on the screen of the X7 on different boxes but I have no clue which one you'll end up with. After you lift the X7 out of the box there is another thin box that contains all the accessories that come with the unit.
 
 
X7_Accessories.jpg
Included accessories - Counter clockwise from the left:
 
- A button navigation guide.
- Warranty card.
- Extra screws for the amp module.
- TRRS coaxial adaptor for coaxial output.
- USB Data and Charging cable.
- Extra screen protectors.
 
The X7 does not come with a case but FiiO has said that one is in the works and I'm sure third party manufacturers will be making cases for the X7.
 
 
Hardware Look and Feel
 
DAPLineUp.jpg
Size comparison to other DAPs in my collection. The X7 is rather large.
 
 
X7_Hand.jpg
The X7 in my hand. It has some good weight to it.
 
I've been following the development of the X7 since it was first announced on Head Fi. There have been many designs shown, some of them brilliant, some of them a little ambitious. and some of them terrible. In the end what FiiO has come up with is a very utilitarian device that doesn't shout 'hey look at me'! It's simple and symmetrical, there's just no other way to put it. To be honest I liked some of their earlier designs but FiiO can't please everyone. What I really appreciate about FiiO is that they seek feedback from their customers and although the X7 doesn't have all the original planned features and may not be the perfect design I know that FiiO is listening. I'll touch on this more later.
 
 
Hardware Usability
 
LeftSide.jpg
RightSide.jpg
Symmetry on either side. The blue cast is from the lighting.
 
 
The Volume up / down and Power buttons are along the left side of the unit while the Forward / Back and Play / Pause buttons are on the right. Each button has a good click and they didn't feel soft or loose to me. Overall I appreciate FiiO's continued dedication to including hardware buttons.
 
It wasn't all roses for me though. For my time with the X7 I had a hard time getting used to the symmetry of the device. Not everyone is going to find the symmetry an issue but my genetic makeup and large hands just didn't get along with the symmetrical hardware buttons. I use my thumb and fingers on both sides of the unit to brace it when I press the buttons and the first issue I had was I would keep pressing pause when trying to turn on the screen. I don't think it's a fatal flaw and I really have no suggestions to make it better as it makes the most sense in this chassis design, but still thought I should mention it. 
 
The touch screen is fairly responsive and an entirely different world from FiiO's previous button and wheel based DAPs. There is simply so much more that a company can implement in the device with a touch screen interface over a non-touch screen device. I welcomed the change from FiiO.
 
 
Inputs, Outputs, Battery and Storage
 
On the bottom of the X7 is the amp module that also contains the micro USB port for charging and data transfer. The use of amp modules is where FiiO sets itself apart from other touch screen DAP manufacturers. With easily swappable amp modules you can choose the one with the appropriate output power without hiss for IEMs, or in the near future you can pick up a balanced module to output to a balanced headphone. There are many possibilities and FiiO has even hinted that they could provide an extra mSD slot in an amp module for example, and FiiO has also indicated that third party developers would be making amp modules for the X7. Also, the X7 can connect to the new FiiO K5 docking desktop amp.They certainly are thinking of covering all the users needs with the X7.
 
The unit I tested only had the IEM module and it's the one that will ship bundled with the final production X7 unit.
 
The USB acts as the data transfer port and battery charging port. You can not turn off charging when the unit is plugged in. I was getting around 8 hours on a single charge playing a variety of sample rates from 16/44.1 lossless to high resolution 24/192 files, and some DSD samples.
 
 
BottomAmp.jpg
Headphone out and USB port. Personally, I'm not a fan of the headphone out
on the bottom of a device but there's no way around it with the amp module.
 
AmpModule_02.jpg
Amp module connection / removal. It's very easy to do!
 
 
AmpModule_01.jpg
The removed amp module. The connection is quite secure when attached.
 
 
mSD_Slot.jpg
The single mSD slot on the X7. Data transfer was painless when connected
to the computer.
 
LineCoax_Out.jpg
The shared Line Out and coaxial out jack.
 
On the top of the unit you'll find the Line Out and coaxial out jack that uses a TRRS configuration. The Line Out pins are in the standard location but the coaxial pins are on the Sleeve and the last Ring so you'll need to use the included adaptor to RCA or a custom 3.5mm coaxial cable to connect to an external DAC that accepts coaxial input.
 
 
Software and Graphical Interface
 
While the X7 allows you to take screen captures I decided it would be more helpful to create a video of myself navigating around the X7. The video turned out to be 14 minutes long but if you check it out you'll get to hear one of Pink Floyd's greatest tunes and you'll see what the X7 can offer from start to finish. Of course the FiiO link I provided earlier has explanations throughout each video but I put the time in to the video so may as well post it.
 
You'll also see that there are some times that the X7 didn't always respond immediately to my touch. Overall though the interface is snappy and it was a treat to scroll to the bottom of a list instead of having to scroll a wheel to reach the same goal on FiiO's other wheel based DAPs.
 
 
/img/vimeo_logo.png
 
One overall gripe I have with the X7 GUI is that it seemed like it wasn't focused enough on one goal. There seemed to be too many ways to arrive at a destination and over time it eventually became distracting. I could see how others may like the flexibility but I want more focus from a DAP. For a more focused interface I'd prefer the AK240 interface. It's relatively fast and definitely focused on one thing only.... Get the user to their music as quickly as possible with the least amount of confusion. I hesitate to comment too much on the interface as FiiO is putting out firmware releases at a very fast rate and I feel much of what I criticize will be moot in short time. Like I mentioned earlier, FiiO responds very well to their customers.
 
A big selling point of the X7 is the capability to use different apps like Spotify. The problem I had with the preview unit is the documentation was in Chinese and I'm an Android idiot so I didn't test any third party apps on the X7. The default music player is all I would use as I find it capable and I don't stream music.
 
 
X7 DAC Section
 
FiiO decided long ago that they would utilize the Sabre ESS9018S 8-channel desktop DAC in the X7. This is opposed to many other DAP makers using the 2-channel mobile version of this DAC and in my opinion FiiO has once again done a great job in the implementation of their chosen DAC chip. This desktop version of the ESS9018 certainly affords FiiO with the flexibility to use a variety of amp modules, and in my opinion, is a good choice on FiiO's part. It can natively decode DSD and PCM up to 384kHz. It can handle all file formats and has very good specifications. The key to a good DAC is it's implementation and FiiO knows how to do a good implementation.
 
USB DAC functionality is not yet implemented on the X7, but FiiO has it in the works for a future firmware update. 
 
 
X7 Amplifier Section
 
As you've already read the X7 has swappable amp modules which are very easy to change with little effort. The amp module packaged with the X7 is the 100mW IEM amp module which, in my tests, sounded pretty good. It's not the best amp section I've heard and I feel it's actually holding back the fantastic DAC implementation, but still I find it more than capable. There's not much more to say other than the planned amp modules from FiiO are:
 
- IEM module (bundled with the X7).
- Medium powered amp module with the Muses02 opamp. 
- High powered amp module with approximately 500mW power (subject to change).
- Balanced amp module with 2.5mm balanced output and 3.5mm SE output (can't use both at the same time).
 
 
FiiO X7 Overall Sound
 
X7_Angie.jpg
My IEMs paired well with the IEM amp module.
 
When describing the sound of a player there are many factors to consider - from the files being used and how they were mastered, the headphones being used, the volume one is using, the output chosen (headphone out, line out, coaxial out) and the other gear in the chain. Also, the perspective one is coming from I feel is of great importance. If a user has never heard a very detailed and analytical source they might find the X7 to be too analytical, or too revealing of the flaws in poorly mastered music. On the other hand if coming from a perspective of highly revealing source gear and quality masters one may find the X7 to be not analytical enough (though I doubt it).
 
I'll be describing the signature of the X7 from the use of generally well mastered music only with my JH Angie given the supplied IEM amp module. One last note before I begin with describing the sound. If you don't like the sound signature of your headphones the X7 will not magically change them in to something else. These are my findings and you mileage may vary.
 
The X7 retains the general FiiO sound BUT everything is stepped up a couple awesome notches. There is a great sense of space, a refined presentation, a smooth top end, yet accurate details. The instruments have great impact while at the same time they're more separated out. It's easy to pick out instruments in the mix. The bass has weight but the presentation isn't overly warm. The mids are musical and engaging. The highs are detailed but not sharp or piercing which is very welcome given my fears when FiiO announced the chosen Sabre chip, as it can sound pretty bright with a poor implementation. What I hear is an audio reproduction that just wants to highlight everything that's in the mix without going overboard in doing so. There is a sort of holographic sound but it doesn't sound too forced. This helps me to lose myself in the mix and I enjoyed it immensely.
 
With the X7 it's very easy to hear tambourines, hi hats, shakers, etc.. they aren't pushed back in the overall mix. Very good micro detailing. It's very easy to pick up subtleties in the recording. 
 
Timing is good. Balance is good. Micro detail is good. Texture is very good. Bass has a great leading edge, guitar plucks a reverberation are sharp and textured, piano has impact. 
 
Overall excellent balance and tonality. 
 
 
DAP Comparisons
 
DAP_Comparison.jpg
Does the X7 really sit in the middle of these DAPs?
 
I only compared the DAPs using my JH Angie because the X7 only came with the IEM module so I wanted to give it a fair comparison.
 
X7 vs X5ii
 
The X5ii is FiiO's former flagship model and it's a great sounding unit in its price bracket. However, the X7 is definitely a step up in refinement. The X7 is smoother, faster, cleaner and more accurate than the X5ii. X7 has a wider soundstage and even better instrument separation. The decay on the X7 is tighter than the X5ii. I also find the X7 to be more musical with deeper extension. In comparison the X5ii sounds slightly less resolving, slightly mushier, more smeared. It's not a huge night and day difference, but it is noticeable very quickly. For the price of the X5ii it's a very good player, just the X7 is better.
 
X7 vs AK240
 
I only compared the SE out of the AK240 given the IEM amp module in the X7 is only SE. The X7 is slightly more analytical than the AK240, more spacious. Micro detail pops out more. A similar level of capability but more holographic. More wide. More instrument detail. It's like with the X7 you are at the mixing board hearing all the instruments individually and the AK240 you are at the live event. AK240 layers the instruments together more while X7 separates them. X7 is microscopic in a way that shows you all the mix at the same level, easy to pick out. Same amount of detail but different presentation between the two. The X7 is a bit brighter in comparison with less mid bass but it sounds overall more balanced to me. The AK240 SE is more warm, even compared to my desktop gear. Balanced output changes some of this IMO.
 
Comparing these two DAPs I would easily put the X7 closer to the AK240 than to the X5ii in sound quality. Quite a remarkable feat from FiiO considering the price difference between the X7 and the AK240.
 
 
Line Out to the ALO Rx
 
LineOut_Rx.jpg
 
As I hinted at earlier the bundled IEM module is good, but I felt that there was more to be gained from a better amplification stage and boy was I right! The DAC implementation was high-lit by giving it a better amp. I've loved the Rx since the day I bought it and having the X7 feed it was incredible. The Rx added more life and musicality while maintaining the overall signature from the X7. There was even more spaciousness and even more extension. better decay and slightly smoother treble. I really enjoy the X7 on its own with my IEM. I enjoy it more with the Rx.
 
 
Line Out to the Oppo HA-1
 
LineOut_HA-1.jpg
 
Since the X7 uses the same DAC as the desktop Oppo Ha-1 I was very interested in this paring. It turns out that the X7 can compete very well with its implementation of the ESS9018S. To be honest there was not a lot to it actually. They pretty much sounded the same but I feel the X7 was slightly smoother with less 'tizz' in the treble region. I could have been imagining it though. Still, I found the line out from the X7 to the HA-1 very enjoyable and up to par for expected performance.
 
 
Coaxial Out to Oppo HA-1
 
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Shortest section ever. The x7 works as a digital transport. 'Nuf said.
 
 
Final Thoughts
 
This was an interesting device to test and review. It was like a moving bullseye being so new and still in the teething stages when I had it. Initially the battery indicator didn't even work. However, FiiO has been updating the X7 very quickly and released two firmwares in the short time that I had the unit. They have just released firmware 1.4 about a week after releasing firmware 1.3.... How's that for rapid progress? I'm sure that the X7 will have all the kinks ironed out very quickly and based on the sound quality it would be worth it to jump in right away. Like I said, I hesitate to say much more about the X7 as the unit I had didn't have firmware that was as fleshed out as the current version. I hope FiiO can get the interface more focused.
 
FiiO has come a long way in a few short years. From the X3 that almost never happened to the X7 is quite a leap for a small company. Given the X7 can play with more high end DAPs with sound quality I predict we won't be calling FiiO a small company for much longer. The X7 proves that you don't need to take out a second mortgage to have TOTL sound in a DAP. It's simply one of the best deals available right now.
 
 
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Thanks for reading!
 
 
 
My ranking of the FiiO X7
 
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Edit: Added the Line Out / coaxial jack picture with a brief description on the pin configuration.
 
leobigfield
leobigfield
Great review!
hakushondaimao
hakushondaimao
Nice job, Craig. Thorough, but easy reading.
Arctican
Arctican
Great review! I also do concur with your review points.
 
I just bought this great DAP yesterday, and boy, I am a little nuts now on how great the X7 sounds. The instrument separation and "effortlessness" of its sound reproduction is phenomenal.
 
I was lucky to audition this side by side with Hifiman's HM901s. Though the HM901s is more robust-sounding, detail retrieval is almost at par (if not better) with the HM901s. 

ryanjsoo

Reviewer for The Headphone List
ryanjsoo's Reviews
Pros: Clean, smooth sound, Low noise, Great driving power even with AM2, Nice build and ergonomics, Price has become accessible in the wake of the X7 II and X5 III
Cons: Bulky and heavy, Amp modules are an added cost, UI fluidity is not always ideal
Introduction –

In the wake of the X7 II and with recent attention being focussed mainly towards Fiio’s new X5 III, it seems that the device that started it all has lost its spotlight. But Fiio’s X7 remains their present flagship for good reason, and though it was Fiio’s first attempt at a smart, Android-based music player, the X7 is no less mature in its execution than the X5 III. With the addition of a modular amplifier unit, offering different output powers and altered flavours of sound, the X7 is versatile and featured. And though the X7 is older, being a flagship device, it was designed to the highest standard, whereas the midrange X5 III was designed with the intention of being compromised. Let’s see if the X7 still represents the value and prestige it held at launch and whether it remains a smart purchase in 2017.



Disclaimer –

I would like to thank Ari very much for his quick communication and for providing me with the X7 on extended loan. There is no monetary incentive for a positive review and despite receiving the player free of cost, I will attempt to be as objective in my evaluation as possible.



About Me, Background, Gear of choice, Preferences and Biases –

I generally prefer a u-shaped sound that is close to neutral. I like a lot of detail and clarity but can appreciate a smooth, laid back sound. I’m not particularly treble sensitive so I may be more forgiving of brightness over darkness. I will note if I use a different eartip/pad/cover during the review and describe the sound changes.

Read More



Accessories –

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The X7 is similarly packaged to the X5 III with renders and specs adorning the outer surfaces of the box. A hard box slides out from the pictured exterior containing the X7 within foam. The device comes with a plastic screen protector pre-installed, unfortunately not a tempered glass one like the X5 III. The player also comes clad within a plastic case that should protect from scratches and small drops.

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Fiio also include a micro-usb cable, extra screws for the amp modules, a matching T5 screwdriver, extra screen protectors, several skins and a 3.5mm to coax cable. Basic instruction and warranty papers are located just below.

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Amp modules come within a smaller package, they are well protected within a nice metal tin with a snug foam inlet. Fiio packages each module with a plethora of vinyl skins to personalise the module and match the main unit should you want to add some texture and scratch protection to your X7.

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It’s a nice selection of accessories all up. We can clearly see some progression with the X5 III through the inclusion of a glass screen protector and an additional faux leather case though the X7 comes very well equipped for most uses.



Design –

The X7 was the first Fiio device that really stepped up build quality from impressive to thoroughly premium. It shares the same uni-body aluminium design as the X5 III though due to an absence of glass back, the X7 has a small plastic window at the rear to allow wireless transmission. And perhaps most notably, the X7 is a modular player allowing users to swap amplifier modules to achieve lower noise levels with sensitive iems and higher driving power with high impedance headphones. While it may seem redundant, the modular amplifiers allow for greater flexibility that regular gain controls can achieve.

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The X7 has an almost completely metal build that is just as solid as the X5 III though I personally prefer the aluminium back to the glass back of the new X5 due to its greater in hand feel and drop resistance. The main chassis is perfectly solid without flex or give in any direction, it also feels a little softer in the hand than the more straight edged X5 III. The X7 is a chunky device, measuring in at 130 mm× 64 mm× 16.6 mm and 220g making it a bit thicker and heavier than the X5 III and very substantial coming from a modern smartphone. However, to my eye, the X7 is a more attractive device than the X5 III with more slender and elegant dimensions that conform appreciably better to my hands. It’s not a device that goes unnoticed in the pocket nor would the X7 be remotely viable as a workout DAP, but it does avoid being overly cumbersome during commute.

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Some bold chamfering runs the perimeter of the device adding some visual interest. The buttons are also metal, keeping the premium feel uniform and each is clicky with nice travel and feedback. Though they are a tad shallow, different machining on the buttons gives them an easily distinguishable texture when the device is in your pocket. The buttons are also very well placed and the X7 controls much more like a smartphone, I also didn’t experience any accidental presses like the X5 III.

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At the front of the device lies the same 4” 800 x 480 display as the X5 III. I feel my particular X7 was more accurate with more pleasing colours though I have also seen X7’s that looked more off than the X5 III so I would put this up to unit variation rather than calibration from factory. Brightness is similar, minimum brightness is a little bright for night use and max brightness is fine except when under direct sunlight where the screen tends to wash out. Viewing angles and contrast are also quite good as is saturation which works a treat for album art and video. The X7 doesn’t have the highest Dpi compared to today’s premium smartphones, but text looks crisp and UI elements are well scaled. There is plenty of resolution to view album arts and small text, even the occasional video and game look great on the X7’s IPS display. While the Hidizs AP200 utilises a higher resolution 960×540 display, the hardware utilised in these players isn’t quite powerful enough to push those pixels and the slightly lower resolution X5 III and X7 both provide a significantly more fluid performance.

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And finally, running over the physical features of the device, the right and left sides are symmetrical with a rocker at the top and single button below. The rockers can be used to skip songs and change volume while the buttons cover play/pause and power functions. Being symmetrical, Fiio provides a software option to swap the orientation for left-handed users.

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The left side houses the single micro sd card slot, it isn’t covered like the slot on the X5 III but allows for tool-less swapping of cards. The card also lies perfectly flush with the side of the device to prevent damage and accidental removal.

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The top of the X7 is mainly featureless save for a line/coax output for use with an external amplifier. The bottom of the device is most notable, housing the main interfaces and amp modules. The modules themselves are quite small, they slot nicely into the device and attach using a wide connector that looks to be quite hardy and reliable, I didn’t notice any audio dropouts or other connection issues during my 2 months of use.

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The modules house the micro-usb charging/data port and the 3.5mm output though Fiio offer a balanced module with both an additional 2.5mm balanced port. The modules are fixed to the main housing using two T5 screws, one on either side. The screws are countersunk and lie very flush with the housings, I found the included module to line up perfectly with the main device.

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Unfortunately, the AM2 module that shipped with my X7 was evidently from a different production batch as it had a slightly darker colour than the main housing and didn’t line up perfectly. This could be exclusive to my review unit but it is something to consider for second hand buyers.

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AM1 (Flush) – AM2 (Offset)

Just above the modules lies the pulsar light which acts somewhat like a notification LED and adds some visual intrigue to the device. The action and brightness of the light can be altered in the software with 255 levels of brightness and the choice of blink, solid and full off illumination.

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By default, the light pulses when charging and glows solid when the device is active. Other notable features of the X7 include an ambient light sensor just above the display that provides auto brightness adjustments and an accelerometer which senses device orientation. These small tweaks really emphasise the ethos behind the X7’s design, and the culmination of several minor features produce an appreciably more convenient experience than that offered by the X5 III.



Usage –

The X7 has a 3500mah internal lithium ion battery that is just a little larger than the 3400mah unit in the X5 III. But due to the X7’s modularity, battery life can vastly vary despite using otherwise identical hardware. Battery life is rated at over 9hrs with the stock AM1 module though that decreases with higher powered modules, for instance, the AM2 delivers just over 8hrs and the AM3 and AM5 closer to 6. In usage, my unit achieved number just shy of 9 hours with the AM2 module on volume level 30 of 120. The X7 doesn’t have exceptional longevity, but it is easily sufficient for a few days of use and standby drain is very good. I am pleased with the X7’s battery life given its features and output power.

But apart from battery life, the X7 provides much the same software experience as the X5 III. If you would like a little more detail with benchmarks and usage tests, I will provide a link to the usage section of my X5 III review here.



Sound –

The X7 is Fiio’s former flagship that was released almost 2 years ago to a good critical reception. And while there were some more critical reviews about the device’s software experience, few had much negative to say about the player’s sound. And in 2017, the X7 remains a fine sounding source. I would still recommend looking into a pure DAC/AMP if value is your prime concern, but the updated X7 provides a nice smart user experience combined with a well-refined sound and its strengths remain just as pertinent as ever. When evaluating the X7’s sound, I mainly listened to the Campfire Audio Jupiter ($1300), a very sensitive mulit-ba monitor, the Flares Pro ($600), a more power hungry iem and the Sennheiser HD700 ($800) which is a relatively source sensitive headphone.

I won’t delve further into the player’s file support and exact specifications but will link Fiio’s website with all the details below: http://www.fiio.net/en/products/45/parameters



Amp –

Describing the sound of the X7 was more daunting than I had presumed due to those swappable amp modules, each of which carries its own sound. I decided the AM2 module would make for best comparison since it has similar output power to my other similarly priced sources over the stock AM1 module which has notable lower driving power. This also allowed for more accurate volume matching and to my ear, the AM2 sounds a little nicer with a slightly more full-bodied sound that well balances the slightly brighter signal produced by that Saber DAC.

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Starting with noise, the X7 with either the AM1 and AM2 modules benefits from very minimal hiss, much less than the X5 III and HA-2 which makes it much more desirable for sensitive iems. I’m a low volume listener and quite sensitive to noise but even the Campfire Jupiter, which is probably one of the most hiss prone earphones available, only picked up minimal amounts from the X7. It isn’t silent, but noise is unlikely to bother any listener. I feel that the AM2 is the most versatile module, as it also had no issue driving my 150 ohm HD700’s. They were missing some dynamics and soundstage space compared to my desktop amp though I found the X7 to do a better job than both the HA-2 and X5 III with its increased output power; 300mW on the X7 vs 250mW from the X5 III and 220mW from the HA-2. All sources have a sub 1ohm output impedance which I can confirm in independent listening, I experienced nice sub-bass extension from my Jupiter and no other frequency response wonkiness. Perhaps my only issue with the amplifier performance of the X7 is some fizzle when WiFi is active, something that doesn’t affect the X5 III. It isn’t a huge issue and only occurs occasionally when streaming music, but it is very noticeable on sensitive monitors. Some may also frown upon the necessity of buying additional amp modules, which are around $150 AUD each, though some retailers offer bundles that include multiple modules for a discounted price. For most uses, the AM1 will be sufficient and the AM2 is a nice all-rounder that provides low noise to sensitive monitors and enough power to higher impedance earphones and headphones.


DAC –

The X7 implements a single Saber ES9018, a highly regarded DAC chip with great file support and terrific sound quality. It is a highly resolving chip that is known to carry a slightly brighter sound and some implementations are prone to “Saber glare” which manifests as a sense of over-forwardness within the upper registers. With that said, I’ll start with some basic comparison to the Oppo HA-2 (based on the same DAC chip) to illustrate Fiio’s implementation. Both sources unsurprisingly carry a very similar tonality with the HA-2 being slightly clearer and the X7 a little more full-bodied. The HA-2 holds a small advantage in bass reproduction with a little more definition than the X7. I lean forwards and backwards with regards to midrange performance, the HA-2 produces clearer male vocals but female vocals don’t quite sound as natural as the X7 with a thinner body. The HA2 is also slightly more forward in their upper midrange which makes them sound a little more resolving but also more fatiguing long term. Treble is interesting, the HA-2 is a little crisper while the X7 retains a smoother character. I feel that the HA-2 separates slightly better though the X7 sounds a lot cleaner with appreciably less background noise with sensitive iems. I would probably take the X7 for all day listening and the HA-2 for shorter sessions, both are fantastic sources though those who don’t require a full player will save a few dollars by going with the HA-2, or perhaps the SE model with reduced background noise.

I also feel that comparison with the new X5 III is important as it’s always interesting to see how older flagships compare to newer midrange offerings. Starting off with soundstage performance, the X7 has a really well-rounded presentation that is nicely expansive but also very coherent. Instruments are allowed to radiate and atmospheric effects have the appropriate projection yet more intimate instruments and vocals are never artificially distant. This grants the X7 with a really nice presentation that flatters both in-ears and open back headphones. By comparison, the more laid-back X5 III does sound a little more immediately spacious, but it lacks the placement precision of the X7; vocals sound more distant and lack the intimacy of the X7 and instruments don’t project quite as much as they should when called for. The X5 III also lacks the depth of the X7 which makes them a bit less convincing for live recordings. While the difference between the two sources isn’t enormous, upgrading from the X5 III to the X7 won’t turn your HD650 into a HD800, buyers with well-performing in-ears and headphones will find a notable upgrade with the X7.

And this quality can be partially attributed to the varying tonalities between these sources. I have to reiterate that the differences between sources aren’t astronomical, perhaps not even immediately noticeable, but during extended listening, the individual characteristics of each device becomes clear. Off the bat, the X7 is probably one of the best Saber ES9018 implementations I’ve heard, it isn’t quite as bright as the Oppo HA-2 but retains the same kind of clean, clear and well-detailed sound. It’s lack of hiss also makes it the clear choice for use with sensitive iems; the X7 provided a much more agreeable listen than the X5 III with the Jupiter simply due to its vastly lower levels of noise. The AKM based X5 III does carry their more mellow tones over the more forward X7, some may call it the more musical or analogue sounding source and those prone to fatigue may actually find the X5 III to be the more listenable source. But for my tastes, the X7 is pretty spot on, the HA-2 that I daily is a similarly resolving source, but it does occasionally come across as over-bright and forward, the X7 is just a little smoother and tones down the glare a bit to produce a more neutral listen. The X5 III is considerably more laid-back, it is a softer sounding source with less intimate vocals, it is also less linear throughout and bass is notably fuller at the cost of definition. However, the X5 III avoids sounding congested and overly laid back though it’s aggressive detailing, they actually have a bit more bite to their upper midrange than the X7 though the X7 still retrieves more outright detail and presents them in a more natural manner. The X7 has a considerably smoother midrange with improved resolution and a little more clarity, especially to male vocals. The X5 III doesn’t quite sound as transparent and revealing as the X7 even though the X7 is the smoother sounding source. And this trend extends into their high-frequency performance; the X5 III lacks the upper treble extension and resolution of the X7 which saps texture from high hats and cymbals are clearly more detailed and natural on the X7. The X5 has a tendency to sound a little crunchy when details run rampant while the X7 handles more complex passages with refinement that the X5 III isn’t able to achieve.

The X7 remains the more refined sounding source and it’s still the device I would listen to every day despite being a bit older. The X5 III is a fine sounding source but it is missing the smoothness and resolution of higher end devices even though detailing and musicality are very impressive. Of course, the X5 III remains the cheaper device, but with the X7 ageing and the impending release of the new X7 II, that price gap is quickly narrowing and buyers should strongly consider spending a little more for the X7, especially with that AM2 module.



Verdict –

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Over the years, the X7 has become the device Fiio intended it to be through numerous software updates and fixes with that same terrific sound underpinning the entire experience. The X7 achieves great ergonomics through its very smartphone-like form factor and great versatility through a modular design. While its hardware is hardly cutting edge in comparison to the latest and greatest smartphones on the market, the X7 nonetheless provides a convincing user experience through the adoption of the feature rich Android user interface. Luckily, these added features don’t come at the cost of sound quality and the X7 demonstrates that a lot of buyers could benefit by looking into older technology designed to a higher standard than newer models. The newer X5 III is a slightly more musical source and one that I would enjoy in isolation, though I found better synergy with the X7 on the majority of my gear due to its greater neutrality and linearity. The X7 provides a smoother, more organic take on the highly resolving Saber sound that proves to be highly rewarding in terms of both resolution and long-term listenability.

Verdict – 9/10, The X7 is aged but by no means long in the tooth. The X7 has a nice display, a fluid user interface and well-considered ergonomics. Its sound combines resolution, clarity and refinement and the ability to swap amp modules provides some basic sound adjustments and varied output power for a wider range of headphones.

Thanks for reading! If you enjoyed my review, please see my website for more just like it:
https://everydaylisteningblog.wordpress.com/2017/07/13/fiio-x7-review-still-top-dog/

VladBeloz

New Head-Fier
Pros: Great hardware, great usability, nice sound
Cons: Default amplifier (am1) is not up to standard, battery life could be better, the firmware is a pain
20+ years ago I used to have a chinese portable tape player. It had very bad build quality, extremely cheap materials and was slooooowing down the playback as the battery was running lower than 50%. After that I had a couple of Sony walkmans and the discman that were much better. Many years later smartphones (and later iphones) emerged and I thought that dedicated portable music sources are part of history. There was a moment when I thought of getting the Pono player. However I was never able to justify this purchase for myself. Nowadays things are getting different.

What I`m holding now is the chinese dedicated portable hi-res music player (DAP as it`s usually called). From the first touch you realize that it has nothing in common with my first tape player. It’s made from a solid high-grade aluminium piece with a beautiful finish. It feels like tank. Heavy and sturdy. Built on Android and this makes it flexible and full of features rarely available on devices with proprietary OS. The touchscreen is responsive and nice. The contrast and viewing angles are not the best and generally it’s not at the level of newest iphones. But IMO it`s perfect for the purpose. I wouldn't want to pay extra for the DAP top-tier screen. The resources should be mostly spent to fulfill the main purpose of the device - the sound quality.

This is my first DAP so it is hard for me to compare with the direct competition. However comparing to Audioquest Dragonfly (v1.0 that is built on the same DAC chip by the way) and FIIO e17 I’m very happy with the sound. Here I`d like to note that the default amplifier module (Am1) is the weakest part of the device in my opinion. I would recommend to get it with Am3 (Am2 and Am5 should be good as well, but I haven't heard them personally). Lows are tight and punchy, mids and transparent and detailed, Highs are very detailed. If I try to find something to improve I will say that the mids can be more forward and there is a slight spike in highs that can be sibilant sometimes. But that is really minor to me and don’t bother at all. The soundstage and instruments separation is great. With Am3 module the battery life is not among the best (5-6 hours of playback) but for me it’s not an issue. X7 forced me to re-listen all my favourites as it revealed so much details that I couldn`t pick up before. Especially on DSD recordings. The piano pedals pushed down, subtle breathing, fingers touching strings, background noises and echoes. The first DSD album I played was “Jazz in the Pawnshop” by David Chesky records and it overwhelmed me. Of course the headphones used should be on the same level with the device to open the full potential.

To sum this up - the X7 is like having a hi-fi system in a pocket. Nice sound and drivability (with am3) great usability. The bettery life is not the best and the firmware is a pain at the moment. Hopefully FIIO will polish it soon.


PinkyPowers

Reviewer: The Headphone List
Pros: Impressive soundstage. Smooth, refined audio. Impeccable detail. -touchscreen-
Cons: GUI. Incomplete firmware. Battery life. Hardware buttons. Raised screen.
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::Disclaimer::
I managed to insinuate myself into the North American tour for FiiO’s new flagship audio player. I receive no payment for this review, and have no affiliation with the company… yet. I’m trying to convince James Chung I’m his long-lost son/grandfather/aunt. Fingers crossed! My participation in this tour was permitted only under the mandate that I share my opinions openly and honestly, for good or ill. Let’s all of us take a moment to sit and read and see if I can do that.

::Review::
I have earned the ire of some members of the Head-fi community for suggesting that DAPs should be devices focused and dedicated to the highest quality sound achievable. And nothing else. The idea of wifi, internet, streaming, and even video! I have a Galaxy S6 for that, and it does not sound very good compared to even a budget DAP. Top-tier smartphones are proficient at everything and masters of nothing.

Enough people want all that garbage in their DAPs, though. Yet I can’t help feel when a manufacturer splits its focus—and budget—to accommodate features that have nothing to do with sound quality, it’s to the detriment of the product.

As it turns out, the FiiO X7 does show signs of this, but not so bad as it could have.

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Aesthetically, the X7 is mundane to look upon. Gone is the old FiiO, who gave us the idiosyncratic X3 and the handsome brute known as the X5 Classic. The 2nd Gen products are all about function, form be damned. There are rumors out of Hong Kong the last artist in FiiO’s employ was killed in the winter of 2014/15. The others fled months before, and those who couldn’t were transformed into something else.

That at least explains the X7. The most interesting thing about its appearance is the raised LCD screen, which happens to be a design flaw I am in fact docking them for. Displays must be exposed, or they aren’t displaying much. Still, there’s no reason to expose them like this. One oughtn’t take the most vulnerable part of a device and willfully make it more vulnerable.

The build feels sufficient and sturdy. Buttons are solid. NO SCROLL WHEEL! Yay! The layout of the buttons makes for awkward handling, I’m sad to say. By virtue of their symmetrical arrangement, when I press the Power button, I’ll often press the Track Forward or Track Backward on the opposite side of the player. Or if I try and hit the Play/Pause button, I might also change the volume. I’ve found the touchscreen a tad unresponsive. Sometimes it just doesn’t recognize you’ve touched it. Dead center, medium force, and it doesn’t notice.

One of the major drawbacks to the X7 is that it possesses only one slot for microSD cards. That, and the measly 32GB internal storage, makes this a tough sell for some of us. Both the X5 Classic and X5ii have two slots, giving you quite a lot more potential storage. The recently released Cayin N5 also has two, and for half the X7’s price. My AK120ii has but one slot, as well. Yet with 128GB internal storage, the issue becomes moot.

The GUI is rather good, but not great. It could use streamlining. A copious application. You have to select two separate folder icons before you enter Browse by Folder. Every other DAP I’ve owned has this icon on the root menu. Manually updating the firmware is a bit tricky to figure out. Once you do, it becomes simple. Now that the X7 can automatically check for updates, download, and install them, it promises to be as easy as Astell&Kern. Changing from Pure Music Mode to Android Mode was confusing, until v1.41beta. Now it prompts you to reboot, whereas before you would have no idea you should power-cycle the system. Unless you read manuals, which everyone knows hurts the pancreas.

The individual who had this unit before me reported all manner of troubles, which included a plague of system crashes so severe he feared it came straight out of the book of Revelations. Myself, I have seen only one crash. It caused the system to reboot and I thought, “Here we go. I was warned.” But I haven’t seen another one since. Perhaps because I’ve gone through four versions of the firmware since receiving my unit.

Putting my reservations aside, most of the UI is a step up from the FiiO X5. Simply doing away with that hell-wrought scroll wheel secures the X7’s victory. Now… pit it against my principle music player, the Astell&Kern AK120ii, and we see a whole other story. Button layout on the AK is made for human hands. You won’t press anything you didn’t intend. The software is trim, intuitive, and a joy to use. The screen sensitivity is without fault. Let’s not forget the gorgeous volume knob, which is a feature I love in my high-end equipment. Your tastes may disagree. No doubt some folk are muttering “fanboy” as they read this. That’s okay. To me the AK120ii simply feels superior.

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Battery life was tested at a little over eight hours. I ran her from a fresh charge, on high gain, at volume 68, powering my Sennheiser Momentum 2.0 Over-ear. That’s louder than I can comfortably listen at. I turned the screen on four or five times for mere seconds in order to check the status. It was playing standard 16bit/44.1Khz FLAC files. If you’re using IEMs on low gain, expect to get longer use of this DAP.

The ability to plug your X7 into a computer and use it as a USB DAC was still absent while I held it. FiiO says this feature will be unlocked in later firmware updates. Then again, they also say the X7 couldn’t possibly have given me rabies. But I feel mighty frothy, and boy do I hate water. Who’s right?

Google Play Store is present in the latest update. That, along with FiiO Marketplace, gives you access to apps such as Spotify and Tidal. Streaming from Tidal was super easy over my home wifi. I’ve read reports of line noise creeping into the signal when using wifi on the X7. My own limited experience using this device for streaming was pleasant, without any detectable signal interference.

Now… let’s talk about sound.

For this review I finally picked up a headphone switcher—LINE5—and oh my lord does it help distinguish all the variations between sources. I should have bought one of these a long time ago. Sadly, I still don’t have an SPL meter, so everything was volume-matched by ear.

It's an achievement so great I shall preserve it in black and white.

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Upon powering up the X7 for the first time, right off I performed a factory reset. Whatever demons tormented the last reviewer, I wanted to head them off as best I could. I then updated the device’s software. I had all of forty minutes with v1.3 of the firmware before v1.4 released. The update improved the sound nicely. During those first forty minutes, I felt the X7 sounded kinda dull, lacking dynamics and energy. After the update, it was like the FiiO woke up, randy as hell, wanting to get it on with the nearest warm body.

The X7 is utterly neutral, more so than my other DAPs. Its soundstage has a fabulous open quality, with density of detail to fill it all in. Clean and clear is the impression.

I find it easier to describe a device by comparing it to another. A reference point like that gives my descriptions much-needed context. So I’ll match this player against my main DAP. But first, the backup.

The X7 is less warm than the X5 Classic, with even more detail. The X5 has always been known as a detail beast. The X7 is better. It also has a significantly larger soundstage, and smoother sonics. The music is crisper and more analogue-seeming. It takes its place as FiiO’s new flagship with ease.

In regard to my top player, the AK120ii, the X7 is again brighter and more neutral. They are more or less equal in detail. Being brighter, the X7 comes across as having more detail, but if you listen with care, it just isn’t so. The AK renders an even wider soundstage, and deeper.

That’s as far as I can go with my objective comparison. Those are aspects you can almost quantify. This hobby, however, is mostly a subjective one. What do we think about a product? How do we feel about what we hear?

To me, the warmer sound of the AK120ii gives the music a thicker, richer quality. It’s smooth and organic, with a weight of tonality the X7 falls short of. I observed this with every headphone I tested.

I favor a measure of warmth in my sound. That’s the bias I work under. Others lean towards a brighter character. They may prefer every aspect of the X7.

Now, when you take into account the Balanced Output of the AK120ii, it leaps ahead of the X7 in clarity, soundstage, texture, detail, and everything you can think of. FiiO is developing a Balanced Amp Module, along with one for high impedance headphones, and a few other configurations. When these are released the fight will be on leveler ground.

Forgetting my bias is sooooo easy with the X7. It recreates such a splendid melody. Nothing sounds bad on the FiiO.

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I feared that pairing a highly neutral phone with a highly neutral DAP would generate a terribly dry, analytical sound. When I tried the Klipsch X7i with the FiiO X7, relief washed over me. It sounds brilliant. Being single-driver, Balanced Armature, this Klipsch is not going to take full advantage of FiiO’s new flagship. Nonetheless, I fell in love with these little earphones all over again. The Beatles’ Magical Mystery Tour played out with so much detail. It’s very smooth with delightful tonality.

Running the Audio Technica IM03 I found some of that warmth I hunger for. A Perfect Circle made me feel like I was in a dark club, watching them jam on stage beneath blinding lights. Oodles of bass, with plenty of air up top to keep it out of that mucky, veiled territory. The mids are just delicious.

Moving on up to the JH Audio Angie, I’m struck by the clarity and detail. It keeps some of the warmth of the IM03 while giving me everything the Klipsch did, only infinitely more refined. These are the phones I put in when I want to know exactly who the FiiO X7 is. Angie exposes everything, in the most intimate fashion. What I discover is the X7 can handle any genre, and handle it with aplomb. It never sounds digital. It never gets messy with complex recordings. Everything is spaced out and precise, very much on a level with Astell&Kern.

The Sennheiser Momentum 2.0 Over-ears are some of the sweetest, easiest, most laid-back headphones. I took the X7>M2 pair out with me on a few errands leading up to Christmas Eve. Together they made the insanity of the traffic and shopping centers a lot more bearable. The X7 really brought out the Senn’s potential. Rumors by Fleetwood Mac has rarely sounded this good. HD Tracks’ Black Sabbath collection is quite simply life-altering on this setup.

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Most digital music players I’ve had the pleasure of trying are not intended to drive 300 Ohm headphones, such as my Sennheiser HD600. Most can drive them to a loud enough volume, but they sound anemic and hollowed out. Cayin N5 could not deliver a satisfactory performance with the HD600. Even my AK120ii failed this test. The FiiO X5 Classic was the only DAP I’ve tried personally that can fatten up the sound and give me an adequate facsimile of how the Senns perform on a beefy desktop amp. Don’t get me wrong, they are still underpowered. You are not fooled into forgetting that. A good desktop amp makes the HD600 quite a bit thicker, smoother, and richer sounding. The X5 is only adequate in a pinch. And now, so is the X7. That’s right. With just the IEM Amp Module, it does as well as the X5. Once those other Modules arrive, we will have one hell of a player on our hands.

If you stripped me naked and took away all my audio gear, and then offered me the choice, free of charge, between the X7 and the AK120ii, I choose the AK, without hesitation. Nearly everything about it appeals more to my sensibilities. Of course, it’s wildly expensive. At the time of this writing, Amazon has it for just under $1,500. And that’s low for the 120ii. We’re talking nearly two and a half times the X7’s $659. I could never reasonably suggest the Astell&Kern is worth buying when the X7 performs so ******* well at just a fraction of the cost.

The question, as it always comes down to, is what can you afford, and what features do you prize? For many, the X5ii is the better choice, simply because of its storage capacity, and the lack of all that smartphone rubbish the X7 is bogged down by. I still love my X5 Classic. My AK120ii is the perfect upgrade to it. While it is Android based, it’s highly locked down and refined. There’s no App Store. It still feels, and sounds, like it’s dedicated to nothing but sound quality.

Whatever. Enough of this heinous philosophizing. Especially when the deeper mystery is why I had to be naked in the scenario I proposed two paragraphs up! Food for thought.

-~::Pinky_Powers::~-

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PinkyPowers
PinkyPowers
I'll join you in a minute.
peareye
peareye
Mind if i turn the lights off?
PinkyPowers
PinkyPowers
You must watch, and bear witness.

Hitec

Head-Fier
Pros: Smooth mids, Firmware Updates OTH, layered tones
Cons: Bluetooth headphone distortion, EQ level jumps, unresponsive soft buttons
My experience involved using a Sennheiser HD700 and a Parrot Zik 3.0 headphone with all kinds of music.
 
Headphones plugged into the X7:
The HD700, and Zic 3.0 have sounds that are completely different on the X7.  The HD700 sounds excellent with perfectly layered,
robotic,  precision sound, while the Parrot is a little wilder sounding on the X7.  The Parrot looses musicality because of the fun it has with low bass,
elevated highs, etc.  I think the Parrot is more fun with the X7 when you just want to hear the party and not necessarily the
delicate passages of the music.  I would like to take the Parrot and the X7 on vacation together.
 
What was enjoyed:
Ok, I really enjoy listening to that top of the line DAC.  The music was so smooth and nice sounding.  I tried hooking the line out to my external sound system,
and it was so good, that you could crank it to the max and not hear any apparent distortion.  I want to get a SPDIF to Toslink to test that out later.
The source for the music in the X7 must be very clean 'cause I didn't hear it break up at all.  Also, the system seemed pretty linear.  Each increase in
volume produced the same linear output and sound at all frequencies.  Plugged into a headphone, this thing sounded pretty great.  The X7 sounds somewhat
like the Sony PHA3, but the PHA3 just sounds like it has more power, and seems to have larger images, and slightly more space, while the X7 seemed to have more
multiple layered sounds in the music, and a slightly richer midrange.  I think more power to the X7 will have these DACS sounding very close.
 
What I did not like - bluetooth sound:
Well, the Parrot Zik 3.0, in addition to plugging in, can also go Bluetooth wireless.  Dam*&^, this thing was almost perfect for me.  Bluetooth
has a non-stop BACON FRYING at the low high freq. ranges.  Also, the music across the frequency range is not as clean.  It sounds cheap.
But wait, when you plug directly into the  X7 it is a completely different ball game - it sounds terrific.  I tried to go to the bluetooth settings to turn off the telephone bluetooth
checkmark, but that did not help.  I tried resetting the entire device, and updating the firmware all over again - nothing, same problem.
I connected the Zik 3.0 bluetooth headphone to my PC, and VOLA!  The bluetooth connection sounded outstanding, and the bacon was finished cooking!
Apparently, the X7 to Zik 3.0 headphone sounds BAD!, while the PC's bluetooth connection to the Zik 3.0 headphone sounded SUPERB!
CAN THIS BE FIXED?  Makes me think the bluetooth audio on the X7 is not great.  I already returned a pair of headphones for this, but now I know that it is the X7,
and depending on responses here, I will be returning the X7 until it is fixed.  I mean the difference between the PC's bluetooth, and the X7 is night and day!
 
EQ selector icon unexpectedly raising volume:
I can't get a hold on this, but at times, when I touch on the EQ icon to go to the EQ, the overall volume increase.  This is with or without the EQ set to on.
I wouldn't have a problem with this, but I am wondering, if there was volume available, then let me have it already, don't raise the volume
when I select the EQ icon.
 
Soft buttons unresponsive at times:
I think this is just an Android thing, but it happens.
 
I can live with most of these things, except for the Bluetooth - dangit!!
 
Anybody, please advise...
Hitec
Hitec
I have not owned one Android phone that I did not root, and install a custom ROM.  Now, that Android is making it's way to our favorite music players, maybe we can get involved with the XDA Development site to aid and encourage the volunteering developers to create a super-duper customer user interface for music players.  http://forum.xda-developers.com/chef-central/android.  I haven't actually searched to see if this is already being done...
1wyseman
1wyseman
I have 7 headphones and 1 relay DAP/DAC-to-hifi system connected via Bluetooth to X7. All sound excellent with no fying bacon.

There was a concern with lack of volume--just enough but not enough to be a little dangerous on special occasions. In other words, there isn't an 11 when using Bluetooth. I was told on the X7 thread that this has more to do with the receiver than the X7, and X7 + Relay + Harmon Kardon amp + speakers proved that--but yes, there was a significant jump in volume when turning on the EQ. That is gone now with FW 1.8--but defaulted to the lower volume setting. So, if there was more volume with the previous FW 1.5 +EQ, then it seems like it should be possible to bump up the volume with Bluetooth  in general...yes? No?
Hitec
Hitec
@1wyseman,  I agree, there should be room to bump up the volume.  I'm thinking they did not do it because of distortion or something.  I probably had a bad X7 unit.  

T.R.A.N.C.E.

Headphoneus Supremus
BUILD:
 
It's solid, can likely withstand abuse, but it doesn't look high end or refined, imo it looks a bit cheap. The jutting out screen is set on a plastic bed, the screen covering feels like plastic not glass, but can't find info on it. The aluminium case feels very sturdy and looks very good, if only the whole dap followed suit, the jutting out back cover is thinner aluminium and doesn't feel as nice or solid as the main body and looks out of place.
 
USABILITY:
 
I'm not a fan of the side buttons, they are thin and harder to press than some other daps. I also dislike that the buttons on both sides are identical, meaning you have to make sure which way the dap is in your pocket to press correct button. Battery life is average, but that never bothered me. It's slightly heavier than I would like in my pocket personally.
 
SOFTWARE:
 
It is responsive, no complaints there, has a few glitches still on latest firmware, but hopefully will be ironed out with further updates. A few times I had to restart the player because the track seeker would stop responding for example. I'm not one for using streaming or online features so they weren't tested.
 
SOUND:
 
It sounds great, definitely better than X5ii in every way, tighter definition, bigger sound stage, better separation, etc etc. I did find that there was a very familiar underlying sound style in X7 which was also in the X5ii, I'm not going to describe the sound of X7 other than say it sounds very much like an improved X5ii more than any other dap. X7 is no game changer in terms of sound, in the same price bracket I prefer the sound coming from the Onkyo HA-300, which aside from smaller sound stage takes every other sonic victory to my ears. But as usual it is all subjective. And X7 ultimately sounds very good.
 
VERDICT:
 
X7 does not excel hugely in any particular field for me, but at the same time has no major flaws, aside from some people saying it has EMI issues with wifi, which if true make it a flop of a product, but I didn't test that so I won't factor that in, and in any case fiio will probably fix that issue in newer units if that is the case. X7 performs above average in all fields tested, if I hadn't factored in price I would give X7 a 4, but with price factored in I give it a 3.5 because I can't justify it's value personally, in saying that, the X7 is unique in it's feature set, so if it's particular features tickle your fancy then it's value is in the eye of the beholder, if that makes sense lol.
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daduy

100+ Head-Fier
Pros: Sound quality, build quality, interchangeable amp module, plays pretty much all music format, ANDROID!!!
Cons: No Google play services at the moment of review
Disclaimer
 
I got this unit as part of New Zealand tour arranged by Brooko, thank you very much for including me in this tour.
 
Introduction
 
I am just another music fans in this world, I love listening to music, and that made me stumble into head-fi around 8 years ago when looking for the best way to listen to my music. I am not in anyway an audiophile, heck not even close, so please forgive any lack of details in my review. Most importantly this is my personal impression on the unit, most likely i heard things differently than you, my ears, my preferences, my brain :)
 
I listened to the X7 daily in my commuting from home to work and in the office for about 10 days.
 
I am going to compare the X7 with 7th Gen Ipod Nano mostly, with a quick comparison to my HTC One M7 
 
For the majority of my listening i am using Shure 215 on my travel and Ultrasone Pro 750 on the office, i also try out other headphones with them such as phonon SMB02 and JVC FXT90.
 
Build Quality 
 
Similar to the X1, X3II and X5II, I love the build quality of X7. Solid all metal body, feel good in your hand, and as a sucker for a brushed metal look, I think the look gorgeous.

They are bit thick compare to my HTC One, but shorter and about the same width. Due to the thickness of it, I don't think they will fit in your jeans pocket (well maybe they will but I really wouldn't recommend it). While commuting I always put them in my jacket and they fit fine in there.
 
Interface
 
I will talk a little bit about the build in Fiio Music player here. I must admit the first time I used them i found them a bit confusing, I got the impression that they are trying to cram a lot of functionality and features into the music player, which is great, however resulted in a bit complicated user interface.
 
After a couple of days using them i kind of get used to it and don't have any issue anymore.
 
But this is Android, if you don't like Fiio music player you can download others, Neutron, PowerAmp, you name it, is just a click away (hopefully if google play service is working).
 
I exclusively use the Fiio music player just because i don't see any reason to use the others, they play anything i throw at them, MP3, FLAC, APE, CUE. No lag, no crash, just chugging along nicely for me.
 
Sound Quality
 
Ok the most important part for me, sound quality, so how do they sound? I would say they sound neutral with a slight boost in bass and treble. They are transparent enough that when i change my headphones i can immediately hear the difference in the sound signature.

I also find that i enjoy the sound coming out of the X7 more than X5II, it just sounds good and engaging straight away, 1st impression is really good.
 
The X7 come with an IEM Amp module, which is quite good for IEM, but I found them a bit lacking in power for the Ultrasone pro 750. They can get loud enough (around 90 on the volume level) but it's just not sounding as sweet as when I used my project sunrise amp, but hey it's not fair to compare the IEM amp module to project sunrise.
 
I also tried the line out paired with headstage arrow 2g and find them really good sounding, probably better than the IEM amp module, however for majority of the listening i use the IEM amp module just because it's less hassle.
 
As mentioned above, i am comparing them to 7th gen ipod nano, please note that this comparison is purely for sound quality only, in term of functionality and flexibility  no way the ipod can wins again fiio, although they win in size and weight obviously.
 
I use Fiio headphone switcher to quickly compare the sound between the ipod and X7, the primary music for comparison is Acoustic Alchemy - Red Dust & Spanish Lace Album
 
So how do they fare againts 7th gen ipod? well to my surprise they sounded really really similar. This reminded me to the experience back when i am comparing X5II with 5th gen ipod.

When i first listen to Fiio X7 i thought they are the clear winner compare to ipod nano, however when i use the headphone switcher to quickly change source, i found that they are on par.

Sound signature, soundstage, detail retrieval are almost at the same level, the obvious difference to me is the treble extension where guitar is sounding more clear and detailed on the X7 compare to the nano, but they are very subtle and not huge differences.
 
I also do a quick comparison with my HTC One M7, well the HTC is ok but not really a match for fiio, guitar sounds a bit twangy on the HTC compare to the fiio, and there is this hollow gap in some mids frequency on the HTC one. I am not really keen to listen to my phone while having the X7 with me so  it's easy to say the Fiio is definitely better than HTC One M7 (Please note that i am not using a stock rom on the M7, and if that affect the SQ of the M7 i wouldn't know for sure)
 
Summary
 
Ok, so why would i want to buy fiio X7 if ipod nano is almost as good as them? It depends.
 
What do you need from a DAP? do you just want to listen to your MP3/itunes collection? I Think ipod will be the cheaper solution for that.
 
However these days I personally find that I listen more to streaming service than my mp3/FLAC collection, and unfortunately I can't listen to that on my ipod nano.
 
I think Fiio X7 is the easy answer here, to have a quality sounding DAP to listen to any streaming services available, being Android will give you any flexibility to choose your streaming service. You can also choose any traditional music player that you like, pretty much winner from both side of the world
 
I also love the idea of the interchangeable amp module, and would really be interested to see the roadmap for future amp modules in the plan. Would be interesting if Fiio can sell the X7 at less price without any amp module attached say for head-fiers who already invest in portable amp.
 
My only gripe with X7 at the moment, is that, I am a subscriber to google play music, and without google play service i can't listen to my google play music. So thats minus  1 star for me. 
 
Other than that, she is definitely a keeper. 
wink_face.gif
 
daduy
daduy
lol i was surprised as well, definitely not expecting that, would be interested to hear other opinions if they have nano as well :)
gearofwar
gearofwar
Your X7 definitely needs to undergo some burnt-in process as for most Daps. Early period might make the sound congested and worse...
daduy
daduy
Hmm...good point, i will keep that in mind if i am doing another review next time, thanks for the feedback! :)

originalsnuffy

Headphoneus Supremus
Pros: Clear, clean sound. Upgradable amp; stock amp is good, EQ works on hi res files that were tested
Cons: Unstable Software; limited apps
Introductory Thoughts
 
I received a test unit of the FIIO X7 as part of the US tour.  I believe this unit is a pre-final production run.  
 
Because there are a few very detailed reviews already posted, I will focus on what I think the key issues in most users minds in terms of evaluating the unit.
 
On the plus side, if one were to look past some of the hardware design choices that I do not fully agree with and some of the firmware quirks of the unit, the audio quality of the unit is quite nice.  Even superior.  I used the line out in my car (which has a very fine system) and the open sound compared with the X3 surprised me.  I suspect that one could spend three times as much as this machine and not improve on the built in DAC very much.  I also think the stock internal headphone amp will please most users even though upgrades will eventually be available.
 
I tested the EQ with some 24-196 files and it did function, which is a real plus compared with other FIIO units that I have tested.   Even thought I tested the EQ, I tend to listen to music "flat" and it came through well with all styles of music tested; rock, jazz, and classical.  Polka music and rap continued to elude me on this unit, but those genres have eluded me on every other unit I have used so I suspect there is no hardware solution to that problem.  The unit was tested the LZ-A2; Carbo Tenore, Shure E2C; Yuin PK3, and Phonak Audeo PFE-022.  It worked well with all of these; and the Phonak is fairly inefficient and the unit sounded good even on low gain.
 
I did update the firmware during the test visit.   Unfortunately, some glitches that were experienced continued to persist even after the firmware upgrade.  The unit has two modes; pure audio and Android.  I had to use the unit exclusive in android mode as the pure audio mode crashed repeatedly.  Actually, I was only able to get the unit to move from one song the next automatically about half the time in Android mode; not sure what was behind that and it could well be user error.  However, if it is user error then I think part of the issue is the non intuitive user interface of the unit.
 
As one user noted, it is possible to get into an Android mode where two apps play music simultaneously.  That is easy to fix; just swipe one app away and sanity reappears.
 
The advantage of being Android based is that one can access streamed music from Tidal, etc.  I did test a DLNA server capability using JRiver's Gizmo, and that worked well at hi resolution on wifi.   For full disclosure, I do consulting work for JRiver but on the other hand since many apps are white listed and the APK from JRiver for Gizmo is easily located and has no charge it was a reasonable thing to use for testing.  I presume over time the Whitelist will increse in size.  I am really not quite sure whether the unit will be open to the entire Google Play ecosystem over time or remain on a whitelist basis.
 
That does bring up my biggest question for the unit, which is where does it fit in to the music ecosystem?  It is not usable on a cell network as it has no cell capability.  Of course the unit can be tethered but that would be annoying.  In my case I would rather use my favorite streaming apps from my phone and send the music to my favorite DAC/AMP.  Right now I do that with my X3 units (both gen one and two) from time to time. If that mattered more to me I think I would pick up an Oppo HA-2 which also sounds incredible like the X7 but has Apple compatibility built right in.  But I think there is a niche of people who want to stream music from the house or office and not in a portable environment and the X7 will fill that bill well.
 
The unit is quite solid and if you do not mind a bigger machine, it is attractive in a muscular fashion  The X7 does have a blue glow while in operation that does not seem to shut off.  This can be an issue for night listening.
 
When the firmware become more stable the unit would move to four stars for me.  I really can't rate a unit five stars when I think the ergonomics are not ideal; the apps situation is highly limited, and at the price point the unit really should be something that one would want to keep for years to come.  I kept thinking that this is a transitional unit.
 
Photo:  The unit showing cover art.  The unit is brighter in daylight than other FIIO units which is  real plus.
 
IMG_1653.jpg

jjacq

Playing Upgraditis Mania
Pros: android, streaming, dedicated app, amplifier modules
Cons: a little bit big, small storage, firmware issues
2016-01-0215.21.26.jpg
 
Design:
The DAP definitely has a solid build to it. Very good in terms of its weight which kind of reminds me of the FiiO X5 when I owned it but almost all touch screen. I like the build quality a lot and the screen is wonderfully spacious. It is a tad bit big to my liking but that is probably because I’m already used to the form factor of my own DAP. I personally am not a fan of the buttons as it is hard to distinguish what side I am pressing if I want to change the volume or change the song. It would have been ideal if FiiO had used another mechanism for the volume control or used different buttons altogether to avoid confusion. Even when I have the DAP right next to me, I can’t just grab it and change the song without having a second look to make sure I am not increasing the volume.

Interface:
I like how FiiO made the DAP have two different modes, Pure Music and Android mode. I enjoy the dedicated music app by itself though it also needs a little bit of getting used to in terms of navigation. This is because there are buttons that don’t have labels on them and I find them necessary especially for those who are more used to iOS. The UI is very responsive, I don’t see any lag on it at all and the freedom streaming apps is definitely very convenient as well. One thing I don’t like about the X7 is the on-screen volume change. Sometimes it does not respond properly where I drag my finger and it’s not doing anything. There are also times that it’s the android-style volume bar that shows when changing the volume. The drop down pane also disappears sometimes where it only shows what’s playing rather than being able to change settings on the fly. Perhaps these are polishings that FiiO will address in the next few firmwares.
 
Sound:
The X7 is quite a contender indeed. I am using my SE846 and it provides a close amount of clarity and detail when compared to RWAK240. The X7’s sound signature is very flat and a little bit lacking when it comes to dynamics. While there are details on the X7, I think it still lacks when compared side by side with the RWAK240. They are not too far apart though, on a price and feature standpoint the X7 easily wins out though the RWAK240 does offer more storage, optical and balanced out if that’s what one needs. The bass is excellent and hard hitting, mixed with a well-balanced midrange and treble. The treble is very smooth and it makes music sound engaging as it should be. I would say that it is a good match for the SE846 which I think is particular when it comes to it source.

Final thoughts:
The X7 is truly a flagship in its own right and it can definitely compete with the more expensive AK DAPs. While I do enjoy the sound from it, the dealbreaker for me would be the small storage of 32gb internal and the interface which can be remedied with future firmware updates. I wish that FiiO had made the button layout more ergonomic and I would’ve been happier with a smaller device. Optical out would also be nice. I look forward to the modules FiiO would be releasing for it as well. 
HarlanDraka
HarlanDraka
Hi, i could see you tried the Shure Se846 with the X7. Can you hear any hiss with them? How is the noise floor with the Se846?
 
Last two questions:
 
Is it possible to change the theme or the colour of the Pure music player (like choose other colours for the player beside that blue)?
 Is it possible to choose to have that blue led off when the player is on? Many Thanks!!
jjacq
jjacq
@HarlanDraka81 I didn't hear any hiss despite the 846 being a 9 ohm IEM. The X7's amp module is reported to be <.2 ohms though so it makes sense.
 
The last two questions, maybe eventually they have it but at the moment I haven't noticed the option of changing the theme color or turning off the blue LED.

nmatheis

Headphoneus Supremus
Pros: Clear, clean sound. Apps. Potential.
Cons: Large. Immature UI. Raised display. Back hump. No DAC function. No Play Store.
FiiOX7-7.jpg
 
INTRODUCTION
I've got a history with FiiO and could probably be considered a FiiO fanboy. The X5 has been my go-to DAP since release. Before that, it was the X3. I preordered both and remember those early days with equal parts fondness and frustration. They were my first "audiophile" DAPs. They sounded good, but boy did they have their fair share of user interface quirks at first. Lucky for us, FiiO was receptive to user feedback, and I spent many hours on the Bugzilla @Joe Bloggs set up submitting bugs, feature requests, testing beta firmware, and helping out my fellow FiiO users. Major kudos to FiiO for reaching out its users and being so understanding of our needs. If you want to see what we accomplished, load up the oldest firmware on an X5 and compare it with today's firmware. I'm hoping you'll agree with me that there were a lot of positive changes made along the way! 
 
In addition to owning the X3 and X5, I've also reviewed the X3ii and X5ii. Again, those were very solid iterations on the design FiiO settled on with the X5. FiiO was learning quickly, and it showed in the increasing maturity of their products. But we're not here to talk about all those old FiiO products, are we? Nope, we're here to talk about the brand spankin' new FiiO X7!
 
Given my history with FiiO products, it should come as no surprise that I had very high expectations for the X7 going into my review period. I expected a stylish, well-built DAP that was easy to use and had great sound. FiiO nailed some of these but fell short in some areas. That's okay. I haven't met the perfect product yet. So what I'll try to do in this review is let you know how I feel FiiO measures up with respect to usability vs. sound quality because I truly feel that both should be very important factors in your decision making process. 
 
Before we start, here's a bit of information about FiiO from the About Us section on their website:
 
About FiiO Electronics Technology Co., Ltd.

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

FiiO's aspiration: to raise the reputation of "Made in China".

Brand spirit: innovation, quality, service

Brand positioning: HiFi with style

FiiO was established in 2007 and has experience in researching and developing countless portable music products of different types,
and sell FiiO-branded products through sales agents worldwide.

FiiO is focused on product quality, adheres strictly to ISO9001 standards in quality management and works hard to attain the lowest
repair-related product returns rate.

Several products from FiiO have created record sales in their respective product segments; our portable headphone amplifiers, DACs and
high-resolution digital audio players have all received praise from the majority of users.

FiiO places great importance on users’ needs and ceaselessly pursues perfection in product design and manufacturing, to supply users
with the best audio products at the best prices. 




 
LINK to FiiO's website.
 
 
DISCLAIMER
I was provided the X7 as a review sample as part of FiiO's worldwide tour. There is no financial incentive from FiiO in writing this review. I am in no way affiliated with FiiO, and this is my honest opinion of the X7.  I would like to thank FiiO for sponsoring the tour and specifically @Joe Bloggs for not only choosing me as a tour participant but for letting me be the first member on my leg of the tour!
 
 
ABOUT ME
I'm a 43 year old father who loves music.  From electronic (Autechre, Boards of Canada) to modern/minimalist composition (John Cage, Philip Glass) to alternative rock (Flaming Lips, Radiohead) to jazz (John Coltrane and Miles Davis) to metal (Behemoth, King Diamond) to classic rock (Eagles, Rush), I listen to a wide variety of genres and artists. 
 
My portable music journey started with the venerable Sony Cassette Walkman and then progressed to portable CD players, minidisc recorders (still have my Sharp DR7), and finally on to DAPs like the Rio Karma, iRiver IHP-1xx, iPod 5.5, iPhones, and the newer crop of DAPs from Fiio and iBasso. 
 
I typically listen with IEMs from my ever-growing collection from budget to mid-fi. Less often, I grab a pair of full-size cans.  Recently, I've been listening a lot with my AKG K553 and HiFiMan HE400, as well as the Alpha & Delta AD01 and RHA T20 IEM I had in for testing.  I do have a lot of other gear, though.  You can always check my profile for a reasonably up to date gear list. 
 
As with a lot of people my age, I've got some hearing issues.  I've got mild tinnitus and suffer from allergies, which often affect hearing in my right ear.  I'll admit it, I'm not blessed with a pair of golden ears.  That said, I've been listening to portable gear for a long time and feel confident in assessing audio gear. I just wanted to be transparent up front. 
 
 
SPECIFICATIONS
Loads of awesome specs can be found on FiiO's X7 page: LINK.
 
PRICE: $699
 
 
PACKAGING & ACCESSORIES
As usual, I'll cover packaging and accessories in pictorial format below.
 
Front
FiiOX7-10.jpg
 
 
Rear
FiiOX7-11.jpg
 
 
Inner Box
FiiOX7-12.jpg
 
 
X7 revealed!
FiiOX7-13.jpg
 
 
Literature + Accessories
FiiOX7-17.jpg
L-R: COAX Cable, T5 Screwdriver, USB Cable, and Warranty Card. You also get a couple extra screen protectors, which aren't in the picture.
 
Conspicuously missing is a case or pouch of any sort and a user manual. I'm not worried about the lack of a user manual since the X7 has a digital user manual that can be updated with each firmware release. This makes it much better than a physical copy, which given the nature of the X7, could become outdated fairly quickly. Regarding the lack of a case or pouch, I'm a bit surprised. At this price point, I'd expect something to be thrown in to protect the X7 besides a couple screen protectors.
 
 
BUILD & ERGONOMICS
I'll go over what I like and what I feel could be improved regarding the X7's hardware build quality and hardware user interface in pictorial format below.
 
Front
FiiOX7-1.jpg

Here's the X7 in its powered-on state. One of the first things that caught my eye was the blue LED. While its nice at first, the fact that it's always on can be frustrating. It's distracting in dimly lit environments. When I listened to music before bed, I found myself turning the X7 face down so the bright light didn't disturb me or my wife. I can't see any reason why this should be there, nor why it should be on all the time other than someone at FiiO really likes blue LEDs. I mean really likes blue LEDs. So, my first suggestion to FiiO would be to make it an option in the very next firmware for the user to turn the blue LED off. Please!
 
My second nitpick is the raised display. I'd really rather the display was flush with the front case. Not only would it look cleaner, it would be less exposed and decrease the likelihood of the display chipping along the edges. Hopefully that fear is unfounded. However, I do hope the X7ii has a flush display. In use, the display is completely adequate for use as a DAP. It isn't, however, a high-res, high-contrast display, so don't go into your X7 purchase thinking that you'll be getting a top of class smartphone display. What you'll get is a display that gets the job done. Nothing more. Nothing less.
 
 
Left Side
FiiOX7-2.jpg

On the left side, we see the Volume rocker, Power button, micro SD slot, and one of the two T5 screws that holds the amp module securely in place.
 
 
Right Side
FiiOX7-3.jpg

Look familiar? Yup, the buttons are symmetrical. The difference here is that the the buttons on the right side are transport controls. While this was fine for me, I know it has already frustrated some people.
 
 
Top
FiiOX7-4.jpg

All you get here is a shared Line / Coaxial Out
 
 
Bottom
FiiOX7-5.jpg
 
The bottom below the blue LED is the amp module (IEM amp module in this case), which has Headphone Out and micro USB port. 
 
 
Rear
FiiOX7-6.jpg
 
You get a good view of the seam where the amp module attaches here. I'm hoping FiiO can eliminate the raised section that starts at the amp module and continues most of the way up the case. If they could get it down to just the thickness of the very top section above all the buttons, it wouldn't feel quite as large in the hand.
 
 
Amp Module
FiiOX7-18.jpg

Here's a shot of the amp module's connector.
 
 
 
DAP Beauty Contest!
FiiOX7-8.jpg
FiiOX7-9.jpg
 
The X7 is on the large side. It's as tall and thick as the Shanling M3 (which is comparable in size to the Cayin N6) but is a bit skinnier. In my opinion, the X7's size is verging on transportable vs DAPs like the X5, N5, and DX90, which will fit better into your pockets. Out and about, I mostly kept the X7 in my shoulder bag or in a cup holder on our Bob stroller. I'd do the same with the Shanling M3 and Cayin N6.
 
 
TO SUM UP
Since this is the pre-production World Tour version of the X7, I do want to point out that the final production model will be a darker, color more akin to gunmetal. It will also lack the cool "X7 debut World Tour 2015" text. Other than that, this is basically the same X7 you should be able to purchase. So what did I think? I liked the clean, simple design but am not a fan of the large-ish size, raised display, and back hump. Getting rid of those would make the X7 thinner, give it better handfeel, and make it more pocketable. And I'm sure there will be some people out there that will be frustrated with the symmetrical buttons.
 
 
GUI
I'm a firm believer that user interface can make or break your experience with any piece of technology. That said during my review period, the X7 went through a few FW updates with only one being considered stable. And despite being stable, bugs crept in that detracted from my user experience. With the X7, FiiO has taken on a big challenge and have had some hard decisions to make. For instance when I received it, the only apps I could install were FiiO whitelisted apps. By the time I handed it over, any apps could be installed. To me this represented a pretty big shift in FiiO's mentality, and it occurred over a period of less than two weeks. With such a young, fluid platform, I'm not sure how long what I describe below will be valid. That makes it difficult for me as a reviewer, so I'm going to focus on some of the things I liked and some that I strongly felt should be changed. I'm going to do this in pictorial format.
 
Lock Screen
Screenshot_2015-11-08-15-28-28.png
 

Okay, so here you have the lock screen. You'll see this if you boot up in Android mode, and it's pretty basic. Swipe the lock icon to the left to open. You've got touch targets for the most basic transport controls, although you can always just use the hardware transport controls. Not much else going on here.
 
 
Home Screen
Screenshot_2015-11-08-15-04-32.png

Here's the default home screen. Again, it's pretty basic. You can always jazz it up if you want. You can see I put the most important apps in the top row: FiiO Music, HibyMusic, TIDAL, and Support. Just as on the lock screen, the topbar has a lot of information: Volume, Background Apps, Wifi, Battery, and Time. Okay, nitpick time. Not everyone wants 24-hour time. I prefer 12-hour time, and this isn't an option. Why? FiiO, please add 12-hour time as an option.
 
 
Shades
Screenshot_2015-11-08-15-06-54.png Screenshot_2015-11-08-15-04-48.png
 
 
LEFT: Swipe down from the left side on the topbar, and you get quick access to transport controls for all of the music apps you're running. You can see I'm running FiiO Music, HibyMusic, and TIDAL with some pretty rad music queued-up in each of them!
RIGHT: Swipe down from the right side on the topbar, and you get quick access to important settings. The upper left tile is where you choose between Android mode and Pure Music mode.
 
Again, all pretty basic stuff, right. Okay, let's move on to the FiiO Music app. This has been highlighted as the crown jewel of the X7.
 
 
FiiO Music: Home Screen
Screenshot_2015-11-08-15-09-15.png

Here's what you see when you open FiiO Music. Not too bad, but I'd prefer to be popped into a list of music stored on my X7 instead of into a menu. Now I have to tap on the folder icon to get into my music collection, which I'm betting will be the most common action. Probably better for the majority of people to just start us off in the music collection. Oh well, what's one extra tap each and every time I open the app, right?
 
NOTE: This is where you start if you boot into Pure Music mode. None of that Android stuff, just the FiiO Music app and nothing else.
 
 
FiiO Music: Settings
Screenshot_2015-11-08-15-09-23.png Screenshot_2015-11-08-15-09-28.png
 
 
FiiO Music: Music Collection (Default - Songs)
Screenshot_2015-11-08-15-09-48.png
 
Okay, serious major nitpick time here. I absolutely do not want to be dumped into an alphabetical list of all the songs on my music player each and every time I enter My Music. No, no, no!!!
 
Please change this ASAP, FiiO. Seriously! A much better choice would be popping me straight into the Artist category. This would've been one of he first things I changed in the Settings, but you can't change it for some reason.
 
 
FiiO Music: Music Collection (Artists)
Screenshot_2015-11-08-15-09-53.png Screenshot_2015-11-08-15-10-02.png Screenshot_2015-11-08-15-10-06.png

1st Pic: Okay, I yet again waste a tap getting to my most commonly used feature of the FiiO Music app, the Artists category. Whew, I'm finally in there. This is going to be good!
2nd Pic: Nope, each and every time you tap on an Artist, you get a completely randomized list of songs. Maybe this is good for some of you who want a random Artist playlist, but I just want to play my favorite Autechre album. Okay, yet another tap. This time on the quite small touch target that has the 3 lines + a music note.
3rd pic: Okay, I've finally got my list of Albums by Autechre. Great! Now, I want to play that second song on the CONFIELD album. You know, that one whose name always escapes you. So, I tap on the album art. Nothing. I tap again, this time harder. Nope, nothing. Say what? I can't drill down to the song level? Nope! Sigh... And to play your music, you've got to tap on that extremely low-contrast Play icon over to the right beside each album. I mean, if you can't even drill down to the song level, why not make the whole line a touch target. Completely flabbergasted me!
 
Please FiiO, rethink how this works. Seriously! This isn't the way a modern music player should work. It doesn't meet my basic expectations with all the extra taps just to get to a list of albums - and then I can't even get to a song list? Low-contrast icons? Sigh, this is a step back from browsing in my X3 and X5 and a major letdown!
 
I'm going to skip the next two Categories (Album & Playlist) because I do not use them. they're basically what you'd expect. Instead, I'm going to skip right on to the last Category, which is the Folder Browser.
 
FiiO Music: Music Collection (Folder Browser)
Screenshot_2015-11-08-15-11-57.png  Screenshot_2015-11-08-15-12-22.png Screenshot_2015-11-08-15-12-26.png Screenshot_2015-11-08-15-12-36.png
 
Whew, this makes sense. I can quickly and easily drill down from the highest level to individual songs. Yes! 
 
 
FiiO Music: Music Collection (Now Playing)
Screenshot_2015-11-08-15-13-09.png Screenshot_2015-11-08-15-14-37.png Screenshot_2015-11-08-15-13-23.png

Here's the Now Playing screen. This is pretty straightforward. Tapping on Album Art cycles through the Lyrics and Song Info overlays. Nothing to complain about here.
 
 
FiiO Music: Music Collection (Swipe From Left / Right Edges)
Screenshot_2015-11-08-15-14-15.png Screenshot_2015-11-08-15-14-20.png
 
Swipe from left: Current track list.
​Swipe from right: Volume overlay. Okay, I finally got this in the end, but I was really confused by the volume overlay in the beginning. You've got two barely visible touch targets here. The + at the top and the - at the bottom. To me, they get lost amongst the rest of he visual information under the display. I think a much better choice would've been either a much less transparent or even a solid overlay so the + / - touch targets become much more visible. My second problem was that it seemed completely reasonable to me to swipe up / down from the middle value circle. Nope, nothing happens. You've got to tap on the touch targets. Really? Yup! If you want to adjust the volume by swiping up / down, you have to activate this by swiping up / down at the very right edge of the display. I found this to be very finicky and quickly abandoned all efforts to adjust volume on screen and solely relied on the hardware buttons. For me, the onscreen volume control implementation just didn't cut it. If I could've just swiped up / down from the middle, I would've been happy! 
 
 
FiiO Music: Music Collection (EQ)
Screenshot_2015-11-08-15-13-45.png

Hey, a 10-band EQ. Nice! I just wish there was a touch target to zero out individual bands instead of one touch target (upper left) to reset the whole EQ. That's just me and is probably my most minor nitpick so far with the FiiO music app.
 
Okay, there's not much left in the FiiO Music app for me to cover, but I'd be sad if I left out Search so here goes... 
 
 
FiiO Music: Music Collection (Search)
Screenshot_2015-11-08-15-14-52.png

Yay, Search! Or maybe not. I found Search to be disappointing. For instance, when I search for say Radiohead on most devices, I get a breakdown of Albums, Songs, etc. by Radiohead. Not with the X7. Nope. I get a single entry called Radiohead that just plays all of the Radiohead songs. Again, really? Not cool! 
 
 
TO SUM UP
I think you can probably tell the FiiO Music app didn't meet my expectations. It required too many taps to get where I wanted and just didn't measure up to what I'd expect from a to pos class music app. And to add injury to insult, all the help was in Mandarin - even in 1.0 firmware. Oh man, I just don't know what to say. I really expected more!
 
Now, on the plus side, what I experienced was a very young / immature version of the GUI. It's got a lot of potential and plenty of time to mature, and I'm sure with the feedback all of us early testers have provided FiiO will make improvements quickly. At least, I hope so!
 
 
BATTERY LIFE

I don't think I should comment on battery life too much. Using beta software most of the time, I found I had unnecessary background processes running that consumed nearly 50% of my X7's battery life. This really made me wish I could live with FiiO's Pure Music mode because in that mode, most of the background processes are completely disabled giving much better standby time. Unfortunately, I just didn't get along with the FiiO Music app enough to boot into Pure Music mode. In the end, I don't see any reason to doubt FiiO's battery life claims. they've always exceeded their stated battery life, and I'm sure once all the bugs are ironed out the X7 will, too.
 
 
DAC

Doesn't work. Sorry. Move along!
 
 
SOUND

During my time with the X7, I mainly used the highly-tunable FLC 8S I had in for testing (review coming soon for these bad boys!). I also gave them some time with the VE ZEN 1.0 and HiFiMan HE400. IEM were on Low Gain, ZEN and HE400 on High Gain. I listened to a wide variety of music in mostly AAC and FLAC formats. 
 
FLC 8S sounded great. VE Zen 1.0 pretty good. HiFiMan HE-400 was a sub-par listening experience.
 
I'd characterize the X7 with the IEM module as a very clean, clear sound that doesn't veer off the edge into overly analytical territory and has a good soundstage. It sounded as good as any DAP I've spent a serious amount of time with. I can't find much to fault with it, as long as you can live with the limited power. This brings me to another point. I wonder if using amp modules was the right move for FiiO with the X7. If FiiO implemented a great sounding fixed amp stage within the X7 with L, M, and H Gain modes, I'm betting the X7 could have been smaller, lighter, and driven all my HP & IEM well. This line of thought occurred to me after I'd used the X7 for awhile, and it surprised me. I was really keen on the idea of amp modules when the X7 was in development, but once I started using it I felt like it was more of a limitation than a strength. just my two cents...
 
 
APPS

When I first got the X7, you could only install a few apps that FiiO had whitelisted. Talk about limiting. There was some back and forth amongst the early reviewers, and it was decided that the whitelist should be removed and X7 owners should be able to install whatever they wanted. Well, as long as you're comfortable searching for and manually installing .apk files - and keeping them up to date on your own. This is because there is no Play Store support for the X7. Coming from the iDevice world, this felt like the wild west to me. I was searching for TIDAL and found so many sites to download the .apk file from.The actual file size differed, sometimes drastically.Did they contain malware? I don't know. I do know I would've felt a whole lot better if I could've downloaded apps from the Play Store. I certainly don't envy X7 owners the experience of having to keep track of which version of the app you should be using and manually updating them. If I were buying the X7, I'd want either a FiiO-approved app repository with an auto-updating option, the Play Store, or just a straight-up music player a la A&K.
 
All that said, once you get an app like HibyMusic, Spotify, or TIDAL installed, it's a great listening experience. However, I'm not sure if it's any better than just using a smartphone and high-quality DAC/Amp. Given the X7's size, it'd probably be a fairly comparable experience. I'll be getting the Chord Mojo in for testing soon and will put that to the test!
 
 
SUMMARY

Wow, what a wild ride I had with the X7. While I really liked the sound quality, I was let down by the clunky design with raised display, back hump, and symmetrical buttons. I quickly left the FiiO Music app behind and didn't look back. It needs some serious retooling before I'd come back to it. And I'm just not sold on the idea of amp modules. I didn't expect this outcome. I honestly thought I'd be swooning over the X7 and would rush out to purchase one. Instead, I'm left hoping the X7ii will meet my needs with a smaller footprint, lighter weight, and a more mature hardware and software user experience. For now, I'd recommend this to people who want a DAP with great sound and a smartphone-like user interface and don't mind waiting for the various nitpicks I mentioned throughout this review to get sorted out. For me, I'm sticking with my old-school DAPs for a while longer and waiting to see what FiiO (and others) bring next in this product category. It's an exciting journey FiiO's started, and I applaud them for making this move!
 
And finally, a big thanks to FiiO and @Joe Bloggs for letting me take part in the X7 review tour. It was a lot of fun, and I look forward to seeing more great products from FiiO in the future!

Vividcard
Vividcard
Great review, Side note however, Regarding the Artist selection option. You can go down into album or song lists. However, you can not do so pressing the album art. Instead you have to choose the name of the album. Art is just there to be pretty, name dives deeper, and ultra-tiny play button plays the album.
nmatheis
nmatheis
Thanks for clarifying that @Vividcard. I swear I was clicking all over the place trying to drill down but missed that somehow. Since there was already a (barely visible) play icon, the most intuitive place seemed to be the Album Art. I really wish FiiO had gotten an English translation of the Pure Music's Help Guide out before my time with the X7 ended. Oh well...
allinhead
allinhead
hi nmatheis, nice review.
could you say few words  between x7 and n6 just about sound pls
thanks
Pros: Very fast G.U.I, Built on foundation designed for FW upgrading
Cons: G.U.I is best part of device
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The Review

In the vid above
 
 
A revolutionary device that combines genuine high end DAP internals with a Android frame. TONS of potential.
 
 
 

 
 

Navigation only

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Hawaiibadboy
Hawaiibadboy
I'm thinking somebody will root that badboy and stuff V4A on it and bassheads might snatch em' up :)
shabta
shabta
Great Review. Looking forward to your Mojo review. Especially compared to ifi stack.
Hawaiibadboy
Hawaiibadboy
@shabta,  am working on it now.  :wink:

RebeccaSugar

100+ Head-Fier
Pros: Insane Sound Quality (with proper setup), Customizability, LINE/Coax OUT, Clear Shell, Android OS/V4A/Root.
Cons: Treble (AM1), Touch Screen Unresponsive, Unsupported Sample Rates, Freezes & Hangups, UI Oddities, Slow Shuffle, Drain on Android Mode (faster w/AM2).
FiiOX7AM2.jpg
 
Disclaimer.​
 ​
There are going to be a lot of things I will have not mentioned about this player, since I would have gotten used to them since the purchase, nonetheless, in the verdict, I will be as detailed & unbiased as possible, while still expressing my personal opinion.
That being said, I will update when something new comes to mind, or any errors happen to pass, this being my first product review.
 
Introduction
I am a 19-year old romanticist who has a very keen ear for a grand variety of music, from chiptune, to electro swing, to classic, videogame, hard rock and all of that good stuff.​
I like my sound signature to be powerful and balanced, putting an emphasis on sub-bass.​
Music has been a daily routine as it has helped as an escapism & coping device during some of the most brutal stages of my life.​
It's helped me do many things that I don't believe would be possible for me to do without it, It's increased my creativity, along with it being extremely therapeutic.​
It is something only a very few could understand.​
Let's begin.​
 
 
Pre-Review
 
Here we are, my very own review of FiiO's current flagship; the FiiO X7. I'm not one of the people who have watched FiiO grow as a company, nor have I been a loyal customer for years (although I have bought many of their products within a very short amount of time), but I have only been here since the conception of the X7, along with being swept up by the hype of this lustrous device, I never had a device so high end, let alone one made ONLY for music, and since I finally got a job (2 jobs at the time actually), I started to go mad with excitement, I grew up poor, so I could never afford something so...valuable, but now I could, I could have it in my hands, I could OWN it and call it MINE, and finally stop watching the others have fun without me.
It was exciting and I REALLY wanted to be part of the early testers, unfortunately, I heard deal-breaking issues on its early run.
Since this was the first time I was ever going to buy something so top notch, I waited some months for the tide to die down, and waited on more experienced users, like Brooko, x RELIC x, twister6, with many, many others, to give a final verdict if I should get it or not.
 
Past Devices (Chronological Order)
RCA MP3
iPod Nano (3rd Gen)
Sansa Fuze+
FiiO X1 x E17K Amp Stack
FiiO E17K DAC + HTC M9 w/ Hiby.
 
 
Review
 
- FIRST IMPRESSION
After what seemed like an eternity waiting for this device to arrive at my doorstep, I finally heard a knock when I least expected it, it was late in January, after making a deal with a very understanding and very respectful user in this forum, bless them.
I dragged myself off of bed, thinking to myself that once again, there were Jehovah's Witnesses trying to convert me, I opened the door, about to tell them to scram, then a holy light shone on me when I saw a woman holding a white package, my frown turned right around, it was finally here, it was happening, WE WERE DOING THIS, BABY!
She asked for my name, and I confirmed, signed the slip, thanked her, closed the door, and welcomed my child to its new abode, "Welcome, my baby." I told the unopened package, as I rubbed it suggestively, with bedroom eyes.headfi.png
 
 
 
 
 
I blazed to my room, looking like Christian Weston Chandler right after making a new comic, looking at the package with intense contemplation, very carefully treading around the box, and then suddenly-- carelessly started stabbing it with a knife. I wanted to crack open the hard shell of this uncolored crustacean, to peek in the pretty package, to get that sweet treat in the center. After much abuse, I finally pried the sucker open, and lo and behold, there it was, it was "lit", the model, the chinese beauty (not talking about the woman in the cover either), it was a lightly used player, but still looking brand spanking new, my baby!
I wanted to cry, "I worked hard for this, I deserved it! I needed a break from all of this bull$#!(" I told myself, as I firmly grasped the aluminum child, kissing it, over and over, as it seemed we were about to make yet another child.
 
I started having a feel for it, titanium finish, bright blue pulsar, as bright as the hottest star, the raised glass, polished semi-clicky buttons, this felt...high-end.
It was like a gift from the angels themselves, my heart was racing, I've honestly never felt this excited since I obtained a gamecube in '08. It was real.
It turned it on, saw the "Welcome" in the boot logo, having "FIIO - MUSIC PLAYER" follow it shortly afterwards, and I grinned, hard. I clicked my SD card right in that sucker and let it scan, I fiddled my thumbs, waiting and waiting for my collection to complete, FLACS, High Quality MP3's and such then, there it was! My heart raced ever so fast.
The menu, it felt sharp, snappy, and intuitive (for now), I clicked on the very song, "Adam" from "G-Darius"----AAAANNNNNDDDD....nothing.
 
I was confused, why wasn't I being drifted into another dimension of musical freedom, why wasn't my soul being torn from my corporeal body, to be cast away to a land of infinite ethereal pleasure, to be comforted by other beautiful celestial bodies, being grabbed by many hands, and felt all over in the most intimate of fashions? What the hell..!? Was it the player, the amp, have I simply surpassed summit-fit, this can't be, can it!!?!
I took a deep breath, and realized, that my expectations were simply too high, did I feel robbed? Maybe. Did I feel disappointed? Certainly. Did I regret it....? Hell no.
INTO THE SOUND SECTION WE GO.
 
 
 
- SOUND
First of all, the sound is very treble oriented,  that's the root of /my/ problem, maybe it's different from yours, maybe you like treble, but personally, I was freaking OUT.
"Why does it sound like this?", "This isn't THAT much better than a stacked X1, if anything it's almost worse!" "Dear god, what have I done!?" I asked myself all of these things, confused and almost frustrated, then I remembered, one very, very obvious thing, my IEM's. "My IEM's! Dear Lord, They're an insult to something of this caliber! I'm a monster! I HAVE DISRECTED THE GODS OF HI-FI" after that epiphany, suddenly another one struck. Eureka! I remembered the AM1 as well, I was...moderately relieved.
At the time, I still had the IM-70's along with the stock AM1 amp, which didn't push this player to complete absolution. These were all I had though, I didn't know HOW much better new IEM's and amps would make it, I just kept thinking on how the treble hurt my ears just as bad as an unamped X1. It fatigued very often, the separation felt empty, treble was overly dominant, sudden shift in frequencies BLARED through my ears, it even gave me light headaches from hearing it often. Although, the more I heard it, the more I started to appreciate as well, excluding the bass, it has been a subtle improvement over the amped X1, strings were clearer, it didn't sound overly warm, it was extremely "Holographic", and the sound signature was "lucid" as I would put it, nevertheless, it was still very hard to enjoy it with such grating frequencies. You have to remember, I'm a very young guy, I was 18 at the time, and I can STILL pick up more sounds that an older person might at their age, so it was screeching to the point that I started to absolutely ABHOR it.
 
After a few weeks later, I ordered the FLC 8S, it was on sale, so why not? I'm unsure what I expected from these but "muh customizability", and, wow, that's actually what I got, I was pleasantly surprised, impressed even. I expected something very useless and gimmicky, but they're surprisingly powerful, I'll focus on these on my next review, but they are VERY good. The detail was better, it sounded way less jumbled and more spacious, instead of far and hollow, not what I would like (at the time), but the tuners helped get rid of some of the treble scratching as well, it sounded slightly so warm.
After a few MORE weeks, I got the AM2, I pre-ordered it to get it the day it came out afterI read all of the reviews on it, since I wanted to make sure I didn't mess up as badly as with the X7.
I'm unsure what I expected for one hundred dollars, but I might as well burn $100 more, I came THIS far, right?
 
IMAG0127.jpg
Then came the day....
 
- AM 1 vs AM2
Other reviews have already done this, so I'm just going to do the very basics, since I'll be focusing more on the AM2 than the dreaded AM1.
AM2 on the left, AM1 on the right.IMAG0130.jpg
 
 
-Treble (AM1)
The treble is very, VERY high on the AM1, no way out of it, if you have treble-centric IEM's, prepare to get ear-raped, ESPECIALLY on tracks like something out of "Sonic Rush". Horrible sensation, HORRIBLE.
 
-Treble (AM2)
This is where it gets good, here is where I start complimenting the player and giving it treats for doing such a fantastic job, this is finally where FiiO meets their dues for such hard work.
Treble is less scratchy, it isn't any less prominent by the way, unneeded frequencies just aren't there, which is, obviously, VERY, VERY good. Yes yes. It sounds great, it's smoother, very fluid, frequency spikes aren't as grating, sound flows much better, fatigue has been decreased substantially, especially with the mentioned FLC 8S, it's certainly improving from when I first got it! (;
 
-Mids (AM1)
Not punchy nor intimate, it's cold, very cold, there's no passion, just a robot blowing cold wind at you, is how I can describe it, quite sad actually.
Detail retrieval is only relevant for the higher mid frequencies, if you're into airy sound and high treble with excellent retrieval in that specific place, this is for you, but me? I like to Jam, madam!
 
-Mids(AM2)
 
Ohhhhhhhhh baby, baby baby baby! This is it, I'm going to get into lick-boot territory here.
I LOVE how absolutely erotic the sound can be for my ears, it's close, it's almost in your face, it's near damn personal, NOT enough to bloat though, HOW is this magic possible!?
Do you know what I'm trying to say? Yes, indeed, the sound is...wait for it....wait for it...It's; BALANCED!! Huraah!!!
The warmness I craved from my E17K mixed with the cold breeze of the AM1, and made -- beauty.
Seriously, this is what I've been wanting since I got a SANSA FUZE+ in '12, but this player obviously, utterly, destroys it. No contest.
I feel so, so close to my music, it's as many users have said before, "It's as if I'm standing right in front of the stage".
 ​
 ​
tmp_29121-IMAG02962048753849.jpg
 
 
-Bass & Sub-bass (AM1)
Imagine this, you're about to be served some delicious food, right? You're excited, you get a certain type of burger, you take a bite, the meat, it's very...dry.
You get very little sauce as well, the lettuce is very crisp and fresh, yes, airy cold tasty lettuce, but the burger is...less than average, you can barely taste the freaking thing.
You don't want purely the taste of lettuce with dry burger meat, that's unsavory, you can only taste the lettuce at this point, the meat has no substance.
That's how I put it with the sub-bass, the bass is there too, it's weak though, just like the burger meat, it's thin too.
Meat & Juicyness = Bass
Meat FLAVOR & Tenderness= Sub-Bass
 ​
 
-Bass & Sub-bass (AM2)
It's gonna be a bizzaro version of what I said above.
Imagine this, you're about to be served some delicious food, right? You're excited, you get a certain type of burger, you take a bite, the meat, it's very...Juicy! Mmmmm!
 
You get a more than acceptable ration of sauce as well, the lettuce is very crisp and fresh, yes, airy cold tasty lettuce, and the burger is EXQUISITE, you can taste so MANY TEXTURES from it, a lot of work went into it, It's insane.
You never knew you could have so many different flavors in your mouth at once! You take yet another bite and pick up even MORE flavors.
You love how fresh this is, that's savory, you can taste both the meat, the spices, the hints of CHEESE inside the meat, AND EVEN THE BREAD! It's not just there to keep it together, it's also including a very distinctive flavor, you enjoy it thoroughly, it; it fills you up and gives you a HUGE amount of energy.
That's how I put it with the sub-bass, the bass is there, It's powerful, not enough to ruin the other flavors, they mix VERY well, it's powerfully balanced.
Your taste buds can also pick up the quality of said meat and spices depending on each different burger.
Meat & Juiciness = Bass
Meat FLAVOR & Tenderness= Sub-Bass
 
-Dimension, Room & Depth (AM1)
It's one of the good things I'll actually give this thing credit for, it's slightly better at instrument separation than the AM2, it's not a HUGE step-up, but if you're the type of analytical person who has a "golden ear" so to speak, you'll definitely pick it right up.
That all goes out the window with the high treble I mentioned earlier though, this doesn't mean much if the high-frequencies keep grating you, especially with the depth not being very deep in mid and bass retrieval, the lower-end depth here is lacking horribly.
 
-Dimension, Room & Depth (AM2)
On par with the AM1, slightly less well, but the balance of the instrument frequencies make up for it. The reason for this must be because it has less weight, and airyness, lack of bass in the AM1 tends to cause a better separation without the heavier frequencies getting in the way, it's very complex stuff.
The depth here reaches far and knuckle-deep.
I can hear artists lips smacking, guitars strumming right as if someone was putting a show in front of me, and it's been up to the point where I can even hear recording fallacies and BREATHING, YES, it sounds...wow. I can't describe, but this player can really differentiate between a poorly recorded audio file and an excellently recorded one.
It's both a gift, and a curse.
 
 
- DESIGN
It's sexy, I like it, I'm no design wizard, I simply think It's a modest high-end. It doesn't scream "STEAL ME!!", but it also doesn't mess around and look cheap, although, I've had several people comment on it, telling me "That's a clunky old phone.", Hahahah, peasants.
I haven't had my hands on a lavish A&K, so I can't really can't say how they compare.
It's really nice to look at for me, especially knowing it's purpose, maybe I just really like sleepers, although, I wouldn't mind having it both look high-end while working as expected to look.
 
- ERGONOMICS, COMPABILITY & CUSTOMIZABILITY
Exchanging amps work just fine, no errors on my part, It's a simple unscrew, plug & play, very easy and VERY handy.
Unfortunately, the screen sometimes fails to detect what keys I press, if I press "G' it will go to "B" then press different keys instead, and it's very frustrating.
On another note, I bought a screen protector and it has protected it from falls and such, though, it isn't the exact size as the screen, just sliiiiightly off, not too shabby.
The SD card needs to be put face-down, which is rather strange, but not a deal breaker.
In being able to customize the X7, you have plenty of amps to meet your demands, I'm settling on the AM2 since I only use IEM's, It's beautifully built and has a sanded finish, there's also the AM5, but that's only if you have big power hungry 'phones.
 
-USER INTERFACE & V4A
If you're using pure android mode, don't worry TOO much about it, but as for me, I'm using neutron and V4A now (which doesn't apply to the sound comparisons above, check below).
It's prone to not working with the side buttons at times, and activates the stock FiiO Player, which is very annoying, along with it also having hangups, the player tends to freeze in the lock-screen sometimes, until forced reset, very grating, especially during jogs and general workouts, way to kill the mood.
 
Now, with V4A and Neutron, they're a dream team, especially in the X7, Neutron is by far, the best Audio App for FiiO right next to the FiiO stock app, when I first used it, I hated it, but now, I don't know how I lived without it, it somehow beat the stock player that I already loved, most likely due to the HEAVY, HEAVY customizability.
Unfortunately, Neutron is prone to crashing every half hour or so, which is unfortunate, but I can live with it, would be more than happy to have it fixed though.
 
- MISCELLANIOUS THOUGHTS
The AM1 has a very noticeable hiss in both Android & PMM.
It was very annoying, especially after a song ended, that's another reason why I hated it so much.
The AM2 fixes this, and most likely other hardware based audio problems.
If you're a normie, and just want a player to play good, simple music without breaking the bank or wracking your brain, then use the phone you already have, and get an FLC 8S if they're on sale, If you get one, give it the golden tuner, clear bass, and red sub-bass tuner.
It sounds wonderful on my HTC M9, It obviously doesn't beat the X7, but it should be enough to please someone who isn't a giant music molestor, like myself.
If you're NOT a normie, and absolutely LOVE music, then try to form your own verdict based on what you've read here and other reviews.
If you like airy sound with a light touch of bass, get the X7 stock, if you like a more balanced, yet analytical sound, look at the AM2, if you want bass, there are upcoming apps for that.
 
 
Verdict:
Well there you have it folks, that's my review, I've said everything I currently know about the player, and my thoughts on it.​
FiiO definitely had a rocky start with the X7, and even if you had high-end earphones, the AM1 most likely didn't satisfy you if you were a bass-head, or just liked balance in general.​
Now, that they've been pushing out new firmwares AND new amps, you've better check it, especially after the price drop, it's under $499 dollars on amazon now, definitely better than the MSRP $649 price.​
Take care and good luck to you all!​
 
 ​
PinkyPowers
PinkyPowers
Finally settled on a DAP, eh?
RebeccaSugar
RebeccaSugar
I did since February, I never thought I'd actually want review it. Don't get me wrong, I love this thing, but I'd love to try others and see if it'll shatter my view on this baby.

I almost disowned it at one point I was so fed up with it. Those times are over, thankfully.
rebbi
rebbi
Very fun read, thanks!

TheoS53

Headphoneus Supremus
Pros: Sound quality, build quality
Cons: UI, value
Following on from quite a line of portable and desktop audio devices, Fiio has now released the X7. This is now their flagship device and a whole new beast at that. This beauty runs Android (a first for Fiio) and is equipped with some very interesting features.
First there is the ESS9019 DAC chip made by Sabre. This is not your usual run-of-the-mill DAC chip, this thing is desktop grade hardware, and is well revered for its audio quality.
But perhaps the most interesting concept is the amp-module. Here Fiio has tried something different, allowing users to swap out amp modules in order to drive more power-hungry cans, and, of course, make some adjustments to the sound signature. You see, in a perfect world an amp would only be there to provide varying levels of power output…but this is the real world, where few things are quite so black and white. Often I see people on forums asking about this or that amp, and it would seem that most of the time the recommendations tends to focus on the power output; often forgotten is the impact that an amp will have on the sound signature. And this is where I feel the amp modules will be of the greatest interest…the ability to cater to your specific sound signature requirements; whether this be to offset the signature of your cans, or to simply get a specific type of sound which complements the listener’s taste in music.
So, before I dive into the review, let me give you a little background info on myself as to better understand what it is that I look for and what my position on the X7 is.
If I had to describe my taste in music, I guess I’d say that I’m an audio purist. By that I mean my aim is to listen to the music the way it was intended; pure and unadulterated. My taste reaches far and wide, everything from jazz to classical, hip-hip to rock, acoustic to RnB. Whilst I fully understand some (perhaps most) people generally only listen to one or a few genres, it makes sense for them to get an audio setup which complements the music the listen to.
But when you’re looking to get the purest sound, it’s a whole other ball-game. This means that my setup needs to be as neutral as possible, to not emphasize or depreciate, to not add nor take away any of the sounds. I wouldn’t go out and buy a painting, and then decide “you know what this needs? More blue”...and then proceed to make my own adjustments. I treat music the same way. I want to hear what the artist wanted to portray, not to do their job for them and try to make the music better. Some people will get that and some won’t, but nobody is right or wrong either way; it’s all a matter of taste.
But, I’m also on a sensible budget. Unless I can hear a clear difference between different setups, I see no point in spending extra cash on something which is “technically better”, but doesn’t add to my experience in reality. Again, to each their own and there’s no right or wrong way.
 
So, the X7; let’s get on with it.
This is the second time I’m takin part in a Fiio world tour, the first having been with the X3 Gen 2. I think it’s a great concept to allow people to review upcoming products and it is indeed quite exciting to take part in. What I particularly like about taking part in these world tours with Fiio is the fact that they don’t try to sensor the reviews. They want users to give their honest opinions, and I respect that greatly.
Those who have been following the X7 thread on Head-fi may have noticed my rather strongly opinionated first impressions of the device, so this time round I will attempt to exercise more, umm, diplomacy.
 
Packaging
I must say, I prefer the new packaging. It seems more modern and classy. Up until now much of Fiio’s packaging were red and black bokes…nothing wrong with them, but nothing that really said “premium” either. I’m not going to spend any time describing the extra bits in pieces in the box, since the main focus here is the device.
 
Design
The X7 is genuinely a beautifully crafted device. Everything about it looks premium. It doesn’t look like it was designed by some Chinese audio device manufacturers, but perhaps rather a German car maker. When I first held the device, it felt solid. Be sure to hit the gym before picking it up though, as it is deceptively heavy, tipping the scale at 220g.
But for me, this is where the positives of the design end. The screen sits about a millimetre or two higher than the rest of the chassis, and just looks a bit quirky. The thickness of the entire device also doesn’t make it feel natural in the hand (granted, I don’t have large hands). On the back there is quite a “hump” which makes placing your fingers on the back feel rather awkward. I guess the weight, added with the form just makes it feel rather unstable in the hand.
Along the top of the device you’ll find a 3.5mm line-out and coaxial out combo jack. On the right is the play/pause button and a forward/back rocker. Along the bottom is the micro-USB port and the 3.5mm headphone jack (which is part of the swappable amp module). And finally on the left is the micro-SD slot, power button and the volume rocker.
The side buttons do annoy me a bit. The logos printed on the device for the volume and forward/back rockers are exactly the same. One would think that Fiio would’ve used the usual “double arrows” to indicate the function of the forward/back rocker, but instead the same single arrow logo is used for both rockers. Not a major deal, but just a little detail that seems like a bit of an oversight (forgive me, I’m a detail Nazi)
 
Interface
Here Fiio has done something rather interesting too. You get the full on android experience, but they’ve also developed what they call “PureMusic mode”. When this is selected, the device reboots into an interface specifically designed just for music. Basically, the only app that is allowed to run is Fiio’s own PureMusic app. All other unnecessary apps and services do not run in the background…well, that’s the idea anyway. In reality this has not been implemented properly. When you have other music apps installed, for some reason they still start up in PureMusic mode when you plug in the headphones. Not the end of the world, you just quit the app…but that’s not what is supposed to happen. At first this proved to be quite confusing to a new user since 2 songs playing at the same time throws you off.
This proved to be the start of my frustration and confusion with the device. When I first loaded music onto it, for whatever reason it would scan and then display all the songs twice. So instead of showing 24 songs, it was showing 48. When playing songs as well, the timer would start at 30:00, instead of 00:00. Very odd. A factory data reset did correct this eventually.
But to be really honest, the whole PureMusic app just frustrated me. It’s not the worst interface I’ve ever dealt with (not by a long shot), but as a graphics and web-designer, I am incredibly picky about how intuitive the interface is and whether or not specific design elements make sense (have a purpose). Don’t get me wrong, things seem functional, but the whole point of a good interface is to minimize the learning curve and to not leave the user feeling confused to any extent.
A pretty UI has never been Fiio’s pride and joy, and this is definitely their best looking one to date, but I fear that a number of people would not want to use the device purely based on their experience with the UI.
In Android mode things are quite familiar. You get the usual home screen, app drawer, and settings look and feel of KitKat. Thanks to the latest firmware update (version 1.5) the Play Store is now also available so you can download your favourite players and streaming apps…but I wouldn’t bother, not with alternative players anyways.
 
Sound
Let’s first get the testy stuff out of the way first. I used a 48Khz 24bit 10-20,000 Hz pink noise wave to record some frequency response graphs, and the results are quite interesting. All graphs have a ½ octave smoothing applied.
 
Pure Music Mode
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Android Mode – HibyMusic
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Android Mode – Neutron
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Android Mode – Onkyo Player
x7AMonkyo.jpg
 
 
Android Mode – Poweramp
x7AMpoweramp.jpg
 
 
As you’ll see, the low and mid frequency range seem to be identical, but it’s in the highs that we see a drastic difference. HibyMusic and PureMusic mode seem to be extremely similar, however, you’ll notice that the volumes are quite different between Android and PureMusic mode. I did try to get the volumes the same, but my recording equipment picked up a lot of clipping at higher volume levels in Android Mode, and so I had to reduce the volume.
Neutron and Hibymusic seem quite similar, although it looks like Neutron has a slightly sharper roll off above 10kHz. Onkyo has an even sharper roll off, whilst Poweramp had the worst FR of all of them.
I wanted to use the Rockbox app as well, but couldn't as I couldnt see anything other than this screen when launching the app.
Screenshot_2015-12-24-21-24-36.png
 
 
For the sake of another comparison, here is the FR graph of my E18+E12A stack connected to my LG G3 running Lollipop and HibyMusic
hibye18e12abig.jpg
 
 
Since the E18+E12A stack is my main setup, I will compare it to the X7.
First off, the X7 does sound great, as is shown by the graphs, the FR is pretty damn good. But they also somewhat confirm what I was hearing. The X7 sounds wonderfully smooth, but just doesn’t quite have the sparkle of the E18+E12A in the higher frequencies, and as such highs seem just a tad pushed back. Instrument separation did seem a bit better on the X7 though, but the sound stage seemed a bit wider on the E18+E12A.
Honestly, that’s all I can say really, both setups sound incredibly similar, and if I wasn’t able to test them side by side, I genuinely wouldn’t be able to tell them apart. Heck, even with testing them side by side, I have to really concentrate on what I’m hearing to discern a difference between them.
 
Battery Life
This has always been a concern of mine. As much as I love Android, it’s not what I would call battery friendly. I did some drain tests (until roughly 10%) in PureMusic mode to see the effects of leaving WiFi on and off.
 
On
Screenshot_2015-12-24-07-19-35.png
Screenshot_2015-12-24-07-19-31.png
 
Off
Screenshot_2015-12-24-20-14-28.png
Screenshot_2015-12-24-20-14-39.png
 
As you can see, not a big difference, about 15 minutes. I noticed something really strange though; for some reason it is not displaying the battery usage correctly. Each time it showed that the screen was the highest battery drain, but in both tests the screen was on at most for just over 5 minutes…very strange indeed. So, a battery life of approximately 8 hours doesn’t give me much hope for the device in terms of the battery. I say this because it is currently equipped with the IEM amp module. How much faster will it run out of juice when the higher power modules are connected?
Perhaps with further firmware improvements we’ll see the device become more efficient, but who knows?
 
Final Thoughts
Let me be clear, I’m in a very weird state of mind right now with regards to the X7.  Before I was able to get my hands on the device I read through other peoples’ impressions and reviews, and I couldn’t help but get really excited to try it out. Talks of how great it sounded, and the very “holographic” presentation it gave. I’m not saying they’re wrong, It’s just that when I compare it to my current setup, I don’t get the same sensation of awe. So when I finally got to plug my headphones in to get my fix of this awesomeness, I was left rather underwhelmed. Again, I’m not saying it doesn’t sound great, because IT DOES! But compared to my E18+E12A stack, there is absolutely nothing that makes me want the X7. I’m having a really hard time trying to justify why I would want to forget about my $320 stack in favour of a $650 device which doesn’t seem to provide me with any type of sonic improvement.
One the forum members mentioned something along the lines of “you can’t judge the sound of a device after only a few hours with it, you have to really listen to it for a longer period of time”. Personally, I couldn’t agree less. The best analogy that I can come up with is, let’s say you drive a French car, and someone hands you the keys to an Audi. The moment you climb into that car you just know it’s better put together. Everything just feels well thought out and engineered to precision. You don’t have to sit in the car for days on end to realise that, but you will appreciate it more as time goes on, and you start to realise why the German has the higher price tag. And I guess that’s where my disappointment with the X7 really comes in…there isn’t enough about it that screams at me “I’M WORTH MORE!”.
This is why I have a very weird state of mind right now. I feel both quite disappointed, and exceptionally relieved at the same time. Disappointed with what the X7 has delivered (or not delivered), and relieved that my humble E18+E12A setup still holds, what is in my opinion, the best bang-for-buck. Of course, the X7 does have a much more portable form factor, but it also couldn't hope to compete with the E18+E12A's 20+ hour battery life. But upon further reflection, perhaps the X7 is impressive after all. Perhaps it's a matter of the IEM amp module holding it back far more than I realise, and with the introduction of better modules it'll really bring the X7 to life.
The whole experience has left a rather bitter-sweet taste in my mouth. As I was discussing with a fellow reviewer, the X7 just feels incomplete. Almost as though there was a rush with the device, perhaps a deadline of some kind (maybe Christmas?) which was deemed more important than polishing the UI and ironing out the bugs. Fiio had a real chance to do something completely different here, to make a device like none other (and to some extent I suppose they have), but instead they sent out what feels to be a blueprint. What particularly annoys me is a buggy UI. UIs can be changed and perfected, so (in my opinion) there is no valid reason as to why they can’t properly test and sort out the UI before releasing the product to the consumers (especially for a $650 device). I’m talking about taking pride in one’s work, to do it to the very best of your ability. Taking pride doesn’t cost a penny.
I genuinely, honestly, truly hope that Fiio will take all the negative feedback and surprise us with a right hook to the jaw. Fiio is still, without a doubt, my favourite audio company and I will keep my hopes up that they will go up from here.
 
Last but not least I want to give a special thanks to Samma3a.com. For the purpose of this review I wanted to compare the X7 to the E18+E12A stack, and Samma3a gave me a 25% discount on the E12A. So thanks a lot Samma3a, it proved it be one of my best purchases yet!
 
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RebeccaSugar
RebeccaSugar
I want to let you know that I ordered the E12A and will pair it with my E17K.
If it sounds great. I will love you.
 
 
But for now.
I hate you, so so much.
 
 
Kisses.

angelo898

100+ Head-Fier
Pros: bluetooth
Cons: not worth the money
Some brief impressions of the FiiO x7
So a while back, I got on the FiiO x5ii tour. I was absolutely impressed with the ability of the x5ii and wrote in my impressions that the x5ii made me very excited for the x7. When the Australian and New Zealand tour for the x7 came up, I jumped at the opportunity to try it out! Sadly, I might be the only one who was not absolutely impressed with it on this forum.
A little about me
Personally, I am a person who tends to gravitate to high end equipment, but have recently started looking at the low-mid end segments of the IEM world, since I have come to the conclusion that I have had my head stuck up in the clouds for too long. While I love trying new equipment, the equipment I end up buying tends to be little. This might be due to my lack of a decent income, or because I have very high standards, honestly I am not sure. However, one thing I am very sure of, since I have a rather limited budget, whatever I tend to buy or recommend are things I love, instead of hyping the regular item. While I believe sound quality to be extremely important, I also highly value ergonomics, and love things that look beautiful as well.
Sound
Personally, I feel that the impressions here are getting increasingly less important nowadays. With improvements in firmware, manufacturers are often able to change the sound of the DAP through the power of software. In addition, the x7 is also further improved by the future additions of the amp cards, which are to be released in the future. As such, preliminary impressions here really should be taken with a pinch of salt, regardless of reviewer, unless they have an amp card (or the specific amp card you want).
I personally felt that the FiiO x7 was decent with the sound quality, having nothing that really brought me into the music. It was pretty bland, despite being relatively neutral to my ears.
I felt that the player was able to drive IEMs well (not very hard to achieve here), but not able to drive transportable headphones, like my recently acquired Shure 1540, properly at all. This was confirmed when a friend listened to it. I subsequently read somewhere (sorry, forgot) that the x7 was tuned to be very stable for IEMs, but did not do well with much else that required amping, thus, creating the need for the amp cards that are being developed at the moment. I hope this is the case and wish the x7 owners well. I personally have had fun playing with amp cards with the Hifiman Hm901 and would definitely not consider the lack of power a minus point since playing with amp cards is fun, and if the amp cards were able to provide enough power to drive less sensitive headphones, FiiO would be providing a complete solution for anyone who liked the sound of this player.
OS
When I first picked it up from the post office, I was on the way to do some errands and a friend decided to come along to try out the new flagship from FiiO. He spent about half an hour trying to get the x7 to scan his microSD card before giving up and calling it ****. He had over 2000 songs in various formats, ranging from lossy to 24/192 lossless. I did not have that as many issues.
I had quite a few problems with the music app crashing. Every time I turned on the player, the music app would crash (100% chance for me). The music app would also crash randomly from time to time, but rarely. This is personally quite unacceptable, since android is pretty known and there are proper alternatives to an app that would crash. I was also told that using the non FiiO app to listen to music would result in absolutely **** battery life but was not able to test this since I could not figure out how to use android since I am an iPhone user.
Ergonomics
The FiiO x7 features both a touch screen and physical buttons on the side. While the touch screen was much better looking than expected, I personally found it to be a tad bit too sensitive and a bit too responsive, making me over scroll or under scroll when trying to compensate (I personally think this is a small issue and could be considered user error since I am stuck in my ways).
The physical buttons worked adequately for what they were and the player did not get too warm when played for long periods (I might have a bit of a bias here since my DAPs are known to get really warm with use).
Bluetooth
Special mention has to be made here for the Bluetooth feature. I used to not be a believer of Bluetooth for music since it is not needed (everything is wired right?). However, with the FiiO having Bluetooth, I decided that I might as well use it. This was the first player that I’ve had that has Bluetooth integrated. I have to admit, I was absolutely amazed at how useful it is! I usually use my Bluetooth speaker with my iPhone, playing what little music I have on it. The iPhone is often not updated with much new music, nor does it usually have much music because the iPhone doesn’t have expandable storage. What generally happens is that I tend to listen to the Bluetooth speaker for a while, before asking a friend if they have any music on their phones, or what not, resulting in me listening to a bunch of Justin Bieber or whatever other top 40 hit there is out there.
With the FiiO x7, this was not the case, with the expandable storage and the Bluetooth function. The battery life doesn’t even suck. I decided to test the battery life of the x7 by turning it on for a long period of time. Since I had to be near it to monitor whether the x7 died or not, I decided to leave it at around a volume of 30. The x7 lasted about 9 hours before I decided to call the experiment off in order to retain my sanity. It looked like the player had around 50% battery life left there (somewhere in the middle). Congratulations FiiO, you have convinced me that I need a feature that I previously did not.
Conclusion
As you can read from my impressions up till now, I am not a fan. The FiiO performs decently for what it is, but has certain issues that I personally am not able to stomach if I were to purchase the unit. It has better battery life than what I am generally used to (I own power hungry DAPs like the Calyx M and the HM901) and has a wonderful Bluetooth feature. Aside from that, I personally would rather go with the x5ii, which I was impressed with. The x5ii is cheaper and has a simpler OS and decent ergonomics. While I am not able to compare the sound since I don’t have the x5ii on hand, I remember being impressed with the sound and would personally rather go that route if I didn’t need the Bluetooth feature. The savings would be able to net me an external amplifier, which would probably perform better than the x7 on its own. 
avitron142
avitron142
RamblerBoy
RamblerBoy
it is sad and funny how difficult it is for members to post a negative review/impression about a hyped product in here. not saying that x7/x3ii/x5ii are hyped products. i see such issues more often these days. Audiophiles are getting intolerant, i guess.
 
@angelo898 nice review. really helpful. thank you.
angelo898
angelo898

Xstream

Head-Fier
Pros: Sound (AM2)
Mobile (desktop) DAC
Cons: Software
Usability
Stability
Bad support
Battery
Size
In terms of sound (AM2 module) i like it every bit. It's that Fiio sound that i like so much, even better than before on the X3.

The whole reason this product turns out to be a disaster is the software. Not only the very un-user friendly way of having to dig through Fiio's forums to find beta software updates (in 2 years there has been 0 stable releases) and complicated processes to upgrade. The software itself doesn't work well too. From annoying popups that makes the device unusable on 1 firmware version (the stable one) to beta versions that can't even store your saved (offline) spotify tracks. (it does save, but after a restart of Spotify/player it's all gone - the data is still there, filling up your free space, but unusable).

The only thing that works well is, like on any Fiio, using their player and play mp3's from the SD card. Which is not why i spend so much on a Android driven Fiio to have all the modern advantages it can't deliver.

It's really been a disappointment and i'm looking forward to replacing it. Also it's been my last Fiio. Mostly because posting my issues on the Fiio forum, not one Fiio employee even took the time to respond. Support = 0.
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