FiiO X3 Mark III Digital Audio Player with Bluetooth 4.1 (Black)

FiiO X3 Mark III Digital Audio Player with Bluetooth 4.1 (Black)

FiiO X3 Mark III Digital Audio Player with Bluetooth 4.1 (Black)

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FiiO X3 Mark III Digital Audio Player with Bluetooth 4.1 (Black)

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Product Highlights

  • Plays DSD, PCM, & Lossy Files
  • 2 x PCM5242 DAC Chips
  • Doubles as USB DAC up to 192 kHz/24-bit
  • Separated Op-Amp & Filtering Chips
  • Up to 256GB Storage
  • 3.5mm & Balanced 2.5mm Headphone Outs
  • 3.5mm Out Doubles as Coaxial Out
  • Bluetooth 4.1 Enabled
  • Multifunction Button
  • Thinner & Lighter Than Previous Models
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Color: Black

FiiO X3 Mark III Digital Audio Player with Bluetooth 4.1 (Black) FiiO X3 Mark III Digital Audio Player with Bluetooth 4.1 (Red)

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FiiO X3 Mark III overview

  • 1Description

Styled in black, the FiiO X3 Mark III is a high-resolution portable audio player with a host of ancillary functions and features. For instance, it can double as an asynchronous USB DAC capable of handling 192 kHz/24-bit PCM files. The player is also Bluetooth 4.1 enabled, though not at the expense of fidelity. Three separate PCBs have been utilized in the construction of this mobile player: one for the digital section, one for analog amplification, and another for Bluetooth.

The X3 Mark III provides both 3.5mm and 2.5mm jacks. The 2.5mm jack is for use with balanced headphones and can offer you a more detailed listening experience with a wider soundstage. The 3.5mm output, on the other hand, is not just a headphone output. It's also a line output and a coaxial jack that outputs DOP and D2P files. This means you can play both DSD and PCM files without an encoder.

Balanced Output for a Wider Soundstage
The X3 Mark III gives you the usual 3.5mm single-ended headphone output. However, there's also a balanced 2.5mm jack that allows you to achieve a more detailed listening experience with a broader soundstage.
Dual DAC Chips
The X3 Mark III provides two high-performance PCM5242 DAC chips. These DAC chips offer a high signal-to-noise ratio, as well as effective noise reduction.
Independent, Separated Chips for a Higher-Res Experience
In the X3 Mark III, the DAC, low-pass filter, and op-amplifier all utilize separate chips to reduce the potential for interference between processes. Such interference could result in an inferior listening experience, which is why FiiO opted for this construction. Three PCBs have been employed, one for digital processing, one for analog amplification, and yet another for Bluetooth operation.
Single-Button Construction
The X3 Mark III gives you a multi-function button, which in one press allows you to access playback controls, change the equalizer settings, or switch between playlists.
Certified Hi-Res Sound
The X3 Mark III has been certified by the Japan Audio Society as a Hi-Res Audio product.
All the Codecs You Can Handle
WAV, APE, WMA, FLAC, ALAC, MP3, and more—they're all supported, lossless and lossy alike.
Bluetooth Enabled
Bluetooth 4.1 is provided thanks to the X3 Mark III's F1C81 chipset, which enables low-latency transmission.
Accepts up to 256GB microSD Cards
With support for microSD cards up to 256GB, you can carry thousands of songs with you on the move. For instance, you can carry up to 8,000 30MB FLAC files at one time.
Multifunction 3.5mm Output
The X3 Mark III's line output doubles as a coaxial output for digital sources and is capable of outputting both D2P and DOP, so you can play both DSD and PCM files without an encoder.
Additional Features at a Glance
  • Power-saving standby and deep-sleep modes
  • Broad in-line controls for fast forward, next, rewind, previous, volume, and more
  • Asynchronous USB DAC capable of supporting 192 kHz/24-bit audio
  • Familiar center-wheel design
  • 20% thinner than previous models
  • 126g lighter than previous models


In the Box
FiiO X3 Mark III Digital Audio Player with Bluetooth 4.1 (Black)
  • High-Current Micro-USB Data/Charging Cable
  • Coaxial Digital Adapter
  • 2 x Screen Protectors (1 Already Affixed)
  • TPU Clear Case
  • Leatherette Case
  • Hi-Res Sticker
  • Table of Contents
    • 1Description

    FiiO X3 Mark III specs

    Headphone Impedance 16 to approximately 150 Ohms
    Display Screen TFT, 240 x 320
    Volume Control Digital potentiometer, 120 steps
    Equalizer 10-band, ±6-dB range
    Balance 5 dB
    Gain Selection High/low
    Outputs 1 x 3.5 mm headphone output jack
    1 x 2.5 mm balanced headphone jack
    USB DAC Up to 192 kHz/24-bit supported
    Chipset SoC: 1 x JZ4760B
    DAC: 2 x PCM5242
    LPF: 1 x OPA2140
    OP: 1 x OPA1622
    Dynamic Range ≥107 dB (line output)
    Line Output Level 1.9 Vrms (10 kOhms/1 kHz)
    THD+N Line output: ≤ 0.002% (1 kHz)
    Headphone output: ≤ 0.002% (1 kHz)
    Balanced output: ≤ 0.003% (1 kHz)
    SNR Line output: ≥113 dB (A-weighted)
    Headphone output: ≥112 dB (A-weighted)
    Balanced output: ≥112 dB (A-weighted)
    Crosstalk Line output: ≥ 103 dB (10 kOhms /1 kHz)
    Headphone output: ≥69 dB (1 kHz)
    Balanced output: ≥97 dB (1 kHz)
    Frequency Response 5 Hz to 70 kHz (-3dB)
    Output Impedance Headphone output: <1.4 Ohms(32-Ohm load)
    Balanced output: <1.2 Ohms(32-Ohm load)
    Max Output Voltage Headphone output: >6.5 Vp-p
    Balanced output: > 7.1 Vp-p
    Max Output Current Headphone and balanced output: >145 mA(For reference)
    Audio Formats Supported Lossless:
    APE (Fast): 192 kHz / 24-bit
    APE (Normal): 96 kHz / 24-bit
    APE (High): 96 kHz / 24-bit
    FLAC: 192 kHz / 24-bit
    WAV: 192 kHz / 32-bit
    AIFF: 192 kHz / 32-bit
    AIF: 192 kHz / 24-bit
    Apple Lossless: 192 kHz/24 bit

    MP3, AAC, WMA, OGG
    Display Working: Blue light
    Charging: Red light
    Fully-Charged: Green light
    Display: Shows detailed battery information
    Battery Capacity 2350 mAh
    Charging Time < 3 hours with 5 VDC, 5 A charger
    Power Recommended: 5 VDC, 2 A
    Dimensions 4.5 x 2.3 x 0.5"/114 x 59 x 12.8 mm
    Weight 4.4 oz/126 g
    Packaging Info
    Package Weight 0.9 lb
    Box Dimensions (LxWxH) 6.9 x 4.4 x 2.1"

    FiiO X3 Mark III reviews

    X3 Mark III Digital Audio Player with Bluetooth 4.1 (Black) is rated 4.8 out of 5 by 4.
    Rated 5 out of 5 by from Fiio X3 Mark III as an alternative to iPod I had an old iPod, which could not hold battery power any longer. Apple discontinue the support of this model, so the only way to listen to it was through the docking station. I purchased Fiio X3 Mark III as a replacement and am very happy with it. I was able to transfer all my music to a Windows like folders by simply drug-and-drop, customize the names, etc. There is a setting that allows to play through all the folders, and also a setting that makes the unit start from the point it was turned off. Works for me. There are multiple option to organize your content, but you can get around just with using folders
    Date published: 2018-08-29
    Rated 5 out of 5 by from Fiio X3 Mark III I have used this product for close to a year now as a replacement for the classic iPod which was finally sunsetting. Since I use Macs, one must drag music into the files as this is a Android-based device. I appreciate the options the X3 Mark III offer in terms of music spacing, amongst other options. The Blue tooth is the latest generation which helps for those using blue-tooth speakers. Fits easily enough into ones' pocket and not bulky. I would recommend this as a replacement to your sunsetting iPod. Regards.
    Date published: 2018-06-02
    Rated 5 out of 5 by from Good MP3 player I decided to try this fiio x3 after reading and viewing good and bad reviews I have to say I don't regret it, sounds really good, I set it up with equalizer off and gain on high, the bass is good not to much, I have listen diferente genres from classical to salsa and is really good, I paired it with my car and had no issues, would recommend .
    Date published: 2018-06-19
    Rated 4 out of 5 by from Good could be better I needed a portable music player with the ability to store more memory than my iPhone. It does that. The battery seems to be as advertised. The only thing I don't like about this is that the usability is, for me, totally unintuitive. I'm used to a single button that takes me home. The menu is also hard for me to get used to. And the wheel that turns is not really accurate in its sensitivity. You could be pushing it forward or backwards and it takes a while to react. Might return this and just get a 128 GB Apple iPod. Overall good machine I just can't get used to it.
    Date published: 2018-08-15
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