Fiio X3-II

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This item has been discontinued

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General Features:

  • Second generation portable digital audio player
  • High resolution lossless music player
  • Dual crystal oscillators dedicated to 44.1 and 48 kHz respectively
    • Ensures the lowest jitter and highest precision for music playback at all sample rates
    • Eliminates all conversion artifacts
  • All new digital audio architecture features native DSD support
  • Supported Formats: DSD, APE, FLAC, ALAC, WAV, AIFF, WMA, AAC, OGG, MP3, MP2
  • Audiophile-grade architecture and components
  • High quality 2" display
  • 10 band equalizer
  • Utilizes Cirrus Logic's high-end CS4398 DAC
  • Custom tuned low-pass filter
  • Extremely low noise and phase distortion
  • Premium tantalum capacitors in the analog circuit
    • Produces minimal internal resistance for the best uncolored sound possible
  • USB DAC function supports up to 192 kHZ/24bit audio
    • Plug-n-Play on Macs
    • +ASIO driver installation required for windows computers
  • Standard 3.5mm headphone output and composite coaxial/line-out port for use with external amplifiers/DACs
  • Standard micro USB 2.0 port for charging and data tranfer
  • Micro SD card slot supports up to 128GB card
    • 128GB card holds approximately 3200 lossless songs of various formats
  • Custom UI design with classic scroll wheel operation
  • Supports CTIA standard in-line remotes on select earphones
  • New power management features
    • Hibernation mode for instant-on playback
    • Coulomb meter integrated in battery provides accurate battery readings
  • Intuitive on-board controls allow for easy operation even from your pocket
  • All metal chassis
  • Internal 2600 mAh 3.7V Lithium-polymer battery provides up to 10 hours of playback
  • Authorized Internet Dealer
  • 90 Day Manufacturer's Warranty

What's in the Box?

  • Fiio X3-II Portable High Resolution Lossless Music Player
  • Micro USB Charging/Data Cable
  • 3.5mm Coaxial S/PDIF Adapter
  • Silicone Case
  • Screen Protectors (x2, one applied in-factory)
  • User Guide


Second Depth
The second depth is used only when the box is slanted or angled. This value is the top measurement and it is measured in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
Color of handle.

Warranty and Return Policy

Parts Warranty Duration
90 days
Labor Warranty Duration
90 days
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

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4 Star
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1 Star

Average Attribution Rating

Browse 2 questions and 15 answers
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Why did you choose this?
Sonic Electronix Store
Plays songs from external SD card and supports all popular formats, including ISO!
jeff s on Oct 20, 2016
Looks promising and wanted to try the high resolution music player from this brand. So far so good.
Mohd Nazri A on Jun 9, 2016
best on market
Scott S on Jun 14, 2016
Best reviews, best price, lossless music storage, ease of use, multiple OS compatibility, professional musicians need professional gear.
Scott S on Feb 18, 2016
onboard memory?
A shopper on Mar 19, 2016
Best Answer: No onboard memory. It has one micro SD slot and supports up to 128 GB. They recommend Sandisk, Transcend or Kingston - Class 6 or above. I use a 128 GB Sandisk Class 10 that can be purchased for $43. That's a helluva lot of music even using lossless formats. I've been using my X3-II for about 2 months and love it.
Reply · Report · Keith W on Mar 20, 2016
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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Fiio X3-II