Third generation of FiiO X5 offers plenty of features. It utilizes dual AKM AK4490 DAC, quad-core SoC, a 4-inch touchscreen and runs on Android OS.
Third revision of X5 brings a lot novelties. Rotary dial has been replaced by a touchscreen and it comes with a single-band Wi-Fi module added. Moreover, streaming is supported and there’s a Bluetooth transmitter with aptX codec support. New X5 version is powered by dual Asahi Kasei DAC and the Chinese company decided to restore the internal memory (32 GB), which can be further expanded via 2 microSD slots (up to 256 GB each).
Accessories
The device is packed in an aesthetic box. The accessory set is as follows:
- silicone case
- faux leather case
- USB-microUSB cable (100 cm)
- coaxial adapter
- card slot opening tool
- quick start manual
Silicone case is thick, smooth and elastic. The included faux-leather case exposes the bottom flank and the volume dial.
Construction
New X5 looks completely different than its predecessors. It more resembles FiiO X7 or Astell&Kern DAPs. X5 III is a device that reduces the gap between high-class digital audio players and smartphones.
Front is occupied by a nearly 4-inch IPS display, which is further reinforced by hardened glass. The borders are rather wide and the screen resolution is 480x800 pixels (235 ppi). Color reproduction is fine, viewing angles are wide and contrast is just average. Housing is made of CNCed aluminum.
Build-quality is awesome, better than in 1st gen X7. The device is massive and built like a tank. Materials are of high quality and the device’s also pleasant to look at. For me, it’s the sexiest FiiO’s device (it won the Red Dot Design Award) and I like it more than Astell&Kern’s products.
Ergonomics and operation
Comfort of handling is fine, with some minor inconveniences. One also needs to remember that X5 III is a decent-sized device (11,4 x 6,6 x 1,5 cm), which weighs almost 200 grams.
X5 is meant to be held in the left hand. User can then comfortably operate the volume or navigate the tracks, while the right hand can be used to use the touchscreen. Elements are placed favourably, but the buttons are too soft, yet offer precise click. Accidental presses happen when lifting the device, but it’s easy to block that function (with the screen turned off) in the options menu.
All connectors are grouped at the bottom flank, which is a convenient decision as they can be easily distinguished and their position easily remembered. Card slots are placed on the right side and this time FiiO decided to use trays (like in smartphones ; a special tool is required for opening) instead of slots. Luckily, there are also 32 gigs of internal memory, while two microSD slots are compatible with microSD cards up to 256 GB.
Battery life is average for an audiophile DAP – up to 10 hours when using a headphone output. During intense tests X5 lasted for 7-8 hours with 3 hours Screen-on-Time. I used various headphones and earphones, played music from internal and external storage, streamed via Wi-Fi and Bluetooth and switched between miscellaneous modes and functions.
During playback the device does not heat up much. Even after a long-lasting playback it is barely warm.
Operating system and benchmarks
3rd gen X5 is powered by Google’s Android 5.1.1 Lolipop. The operating system is therefore outdated – it’s a shame that FiiO didn’t use at least 6.0 Marshmallow version, which features Doze sleeping algorithm.
Booting takes a long time, but when the device is finally ready to use, the system works fine. Android is almost clear and adapted for a DAP function. System is stable, but can be laggy, especially when launching an app. X5 scores 26322 points in AnTuTu 6.2.7 and GeekBench rates it at 500 points in single-core test and 1004 points in multi-core benchmark.
Graphics looks like stock Android. Memory is filled with essential apps only (including Google Play store). Notification drawer is adjusted to a DAP function and includes useful shortcuts (e.g. analogue/digital line out, gain level, USB connection type, digital filters). There’s also Pure Music mode which works as high-priority fullscreen application (enabling it doesn’t require a restart). Android settings offer basic options plus disabling the buttons when the DAP is locked.
Music player in Pure Music mode has been developed. Left flank of the app is filled with options like gapless, balance and gain adjustments etc. The app also includes ViPER Effect sound enhancements, most of which aren’t free. Home screen of the player is highly adjustable and features handy shortcuts. Music files can be launched via library or folders. I enjoyed Pure Music mode much and used it more frequently than PowerAmp.
One needs to remember that X5 III is not a smartphone and it has its limits. WiFi is not very fast and the same applies to FiiO’s OTA update servers – applying updates via microSD card is usually much quicker. The performance of internal memory and card slots is not very impressive too (in case of internal storage transfer rate is typically between 5 and 13,5 MB/s). Luckily, sound cracks do not appear and the overall performance is still decent for an audio player.
When using dynamic-driver IEMs hiss is not audible, but noticeable when using low-impedance and high-sensitivity Balanced Armature IEMs. Wi-Fi module doesn’t disrupt the sound and Bluetooth supports aptX.
Specs
● SoC: Rockchip RK3188 (4x1,4 GHz)
● RAM: 1 GB
● OS: Android 5.1.1 Lollipop ; Pure Music mode
● screen: 3,97 inch, IPS, touchscreen, 480x800 px
● DAC: 2x AKM4490, 32-bit/384 kHz
● LPF: 2x OPA1642
● OP: 2x OPA426
● USB DAC (24-bit/196kHz), Wi-Fi 802.11b/g/n (2,4 GHz), Bluetooth 4.0 aptX
● 32 GB internal storage, two microSD slots (up to 256 GB)
● 10-band equalizer, 120-step analogue volume control
● battery: 3300 mAh (up to 10 hours of life)
● balance control: +/- 10 dB
● 2 gain levels
● dimensions: 114,2 x 66,2 x 14,8 mm
● weight: 186 g
Sound
Cans: Audeze LCD-2 (Double Helix Fusion Complement4, PlusSound X8), MrSpeakers Ether 1.1 (Forza AudioWorks Noir HPC mk2, DUM), Final Sonorus III, AKG K612 Pro, Focal Spirit Professional, AKG K551, Noble Audio Savant i Noble 4, Etymotic ER-4PT, Brainwavz B200
AMPs + DAC/AMPs: Burson Conductor Virtuoso (Sabre), AIM SC808, ODAC i O2, Leckerton UHA-760, Zorloo ZuperDAC
DAPs: iBasso DX200, iBasso DX90
Interconnects: Forza AudioWorks Copper Series, Klotz
Music: various genres, different bitrates (including 24-bit), binaural tracks
X5 III surprised me with the sound quality and its signature. Applied DAC is known for warmer, mid-forward sound, while X5 III is neutral, bright and direct-sounding. FiiO’s sound signature, however, is still audible. X5 III resembles X7 1st gen, its smooth, a tad digital tuning, but the overall quality is a one step up. The sound is universal, detailed and surround. It allows for both analytical and relaxing listening. The signature has its flaws, though.
Bass is not dry, very hard and precise. It also doesn’t offer much attack and dynamics. Lows are vigorous and don’t get muddy and rumbling. It’s neither very fast nor very slow. It’s well-controlled – low tones are nicely separated from one another. The sound is not boring - when needed, a bass drum enters or midbass becomes stronger. Bass reveals many details, but not all of them. FiiO’s devices are often associated with emphasized midbass, but with X5 III the lows don’t overtake, are rather even, with appropriate transition into subbas. Bassheads won’t enjoy such signature, which is rather neutral and transparent. The sound is not thin, though – the bass is present, but not exaggerated.
Midrange is neutral and even. It’s not recessed and not forward either. This range is direct, clear and bright, not dominated by bass and not covered by trebles. Again, there’s no sign of harshness or dryness – the sound is smooth and pleasant, but without losing much resolution and details. Live instruments don’t impose, female vocals don’t hiss and the level of details isn’t overwhelming. The sound is fairly detailed, put somewhere between being analytical and musical. Lower midrange is not emphasised and not overlapped by bass. Midrange is close and non-aggressive. It works well with music genres featuring vocals and live instruments, but synthesizers and modern music also sound fine. Signature is not very natural, not warm. On the other hand, it may also not satisfy people seeking very analytical, highly-contoured tuning.
Upper midrange fluently turns into treble. This frequency range is solid, but – just as bass and midrange – also smooth and soft. It’s bright, but not syblilant. High tones seem a bit artificial, digital, but still at acceptable level – it’s more annoying in other FiiO devices and in two older generations of X5.
Holographics is impressive. One can actually hear that the device is using separate DACs for each side – channel separation is strong, the sound is airy with distinctly separated instruments. Soundstage size is optimal – it’s neither a hangar nor a concert hall. The device clearly exhibits instruments in all directions. The listener is plunged into music, but there’s no effect of discomfort, crampedness, aggressiveness. X5 III doesn’t sound distant – the user is placed in the middle of the scene, next to musicians.
Line out
Line out works awesome, which is in a way… disappointing. This is because when you add a better amplifier, you start to notice some vices of the chip that FiiO uses. When you pair X5 with such a great device as Leckerton Audio UHA760, it is then hard to return to the headphone output – the sound improves a lot. It remains smooth, but gains better dynamic and higher resolution. It seems that the internal amplifier makes the sound smoother. When using a line out, one can hear more details, soundstage also improves and bass is fuller and tighter.
On one hand, X5’s sound can be further improved by adding a high-quality external amplifier. On the other, if you find a decent combination, you may not want to use the headphone out anymore.
FiiO X5 III vs other DAPs
In its price range, the newest X5 is a very good sounding DAP. However, the sound quality is not as good as in Astell&Kern products. iBasso DX80 is also superior, not to mention the DX200. When using the line out, the differences are smaller, yet the FiiO device still loses. Naturally, X5 III offers a whole lot of features, but I wouldn’t call it a killer-DAP.
For me, X5 III performs on par with iBasso DX90 and Astell&Kern AK70. The first one offers harder, more raw and analytical tuning, which is not as easy to listen, but makes the sound more dynamic. X5’s tuning is more calm, less vigorous, but also speedy. FiiO’s device is smoother, musical, with better instrument separation and more air. If one prefers details, DX90 will be a better choice. X5 works better for neutrality in a musical version. Last but not least, one needs to remember that DX90 is much less feature-packed.
AK70’s tuning is more musical and coloured. The DAP offers more midbass and not as transparent and direct midrange. It sounds warmer and offers smaller soundstage, less air and worse separation.
iBasso DX200 provides much higher resolution and dynamics, bigger soundstage, deeper bass and trebles. By contrast, X5 is smoother, thinner, with softer tuning and lower dynamics and a smaller soundstage.
In case of Astell&Kern AK300, which utilizes the same DAC, but just a single one, the sound is more natural, but warmer. Midrange is closer and bass is more tight and massive, trebles are softer and the resolution is a bit higher.
FiiO X5 III vs headphones/earphones
X5 III pairs well with the majority of headphones and earphones, but not all. I much enjoyed it with Etymotic ER-4S and ER-4PT, which have become softer. FiiO works surprisingly great with AKG K551, but not as great with Focal Spirit Professional – the sound is too smooth. Noble Audio 4 hiss quite a lot, but in general sound good. X5 also pairs well with Noble Audio Savant and Brainwavz B200, so with both neutral and darker IEMs. I wouldn’t pair it with very bright and thin earphones/headphones. The device won’t add the lows or cut the highs.
Verdict
FiiO X5 III is not a perfect device and not a killer of much more expensive DAPs. As a whole, it’s, however, an excellent piece of gear, which I enjoy a lot. I prefer it over FiiO X7 1st gen with a standard amplifier and it’s also much better than the previous generations of X5. 3rd gen X5 is perfectly-built, easy to use and packed with a lot of features. Android OS works fine and allows streaming and connecting Bluetooth devices. It’s a fantastic all-in-one device that also offers great line out sound.
Personally I think that the performance of internal storage and card readers as well as Wi-Fi transfers are not limiting. I wouldn’t call X5 III a cheap DAP, especially that its 3rd generation is more expensive than the previous two. For its price, new X5 is for sure worth recommending.
maciux - Maciej Sas