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FiiO M3K Portable Hi-Res Lossless Music Player Review

Product Specifications

CPU modelIngenic X1000/E,40nm
CPU operating frequency1GHz
KeyboardTouch button
DACAKM AK4376A
Operating SystemLinux
No. of coresSingle
DACAK4376A
Input methodTouch button+Physical button
User interfaceDeeply customized
Connectivity
WiFiN/A
USBMicro USB 2.0
BluetoothN/A
Display screen
Display size2.0 inches
Display typeIPS TFT
Resolution240×320
TouchscreenN/A
Number of colours262K
Viewable angleFull-view
Pixel density(PPI)200
Storage
RAM64MB
Storage expansion typeMicro SD
Maximum storage expansionUp to 2TB (theoretically)
512GB (at the time of review)
ROMN/A
ROM available to the userN/A
Buttons and ports
ButtonsTouch panel & Physical buttons
Headphone out (PO)3.5mm single ended
USBMicro USB 2.0
(Charging/Data transfer/OTG/USB DAC)
General
ColourBlack, Silver
WeightAbout 77.5g
Recommended headphone impedance16~100Ω
Treble controlN/A
Balance control±5dB
USB DACAsynchronous USB Dac, up to 192kHz/24bit supported
Dimensions90.8mm×44.2mm×12mm
Volume control60 steps digital potentiometer
Equalizer5-band EQ (±6dB),7 presets
Bass boostN/A
Gain controlN/A
Highest sample rate supported384kHz/32bit
Power specifications
USB power adapterDC 5V/2A Recommended
Charging indicationLarge charging icon shows on display when it’s off,

Small charging icon shows on the upper right of the display when it’s on

Battery capacity1100mAh Li-polymer battery
Charging Time2.5 h (DC5V/2A)
Battery indicationYes
Others
RecordingSupported
Date&ClockSupported
A-B RepeatSupported
USB OTGSupported
Headphone out specifications
Output power 1≥42mW(16Ω / THD+N<1%)
Output power 2≥25mW(32Ω /THD+N<1%)
Frequency response5Hz~90 kHz(-3dB)
SNR≥117dB (A-weighted)
Output impedance<1Ω(32Ω)
THD+N<0.004%(1kHz/32Ω)
Noise floor<2uV
Peak output voltage2.46Vp-p
File format support
Lossless:DSD:DSD64(.ISO .DSF .DFF)
APE(Fast): 192 kHz/24 bit
APE(Normal): 96 kHz/24 bit
APE (High): 96 kHz/24 bit
FLAC: 192 kHz/24 bit
WAV: 384 kHz/32 bit
AIFF:192 kHz/24 bit
AIF:192 kHz/24 bit
WMA Lossless: 48 kHz/24 bit
Apple Lossless: 192 kHz/24 bit
Lossy Compression:MP3,AAC, OGG,WMA


Part 1: Introduction, Design and Build

Part 2: Usability
Part 3: Sound Quality
Part 4: Product Specifications
Part 5: Review Ratings, Summary

Author

  • Goh Beng Yeow

    Goh Beng Yeow, the Founder / Editor at Porta-Fi™, is a recipient of the IT Youth Award in Singapore. Twice nominated for EY Entrepreneur of the Year Awards, Beng Yeow has previously founded startups such as PDALive.com, Coded Pixels Consultants and was a Tech writer for TODAY, a national daily newspaper under MediaCorp. Since 2017, he has been writing, editing and producing commentaries, interviews, news and reviews on Porta-Fi™. In 2019, Beng Yeow was appointed Advisor to LHDC™, the industry's latest low latency and high-definition Bluetooth audio codec.

    View all posts
Goh Beng Yeow
Goh Beng Yeow
Goh Beng Yeow, the Founder / Editor at Porta-Fi™, is a recipient of the IT Youth Award in Singapore. Twice nominated for EY Entrepreneur of the Year Awards, Beng Yeow has previously founded startups such as PDALive.com, Coded Pixels Consultants and was a Tech writer for TODAY, a national daily newspaper under MediaCorp. Since 2017, he has been writing, editing and producing commentaries, interviews, news and reviews on Porta-Fi™. In 2019, Beng Yeow was appointed Advisor to LHDC™, the industry's latest low latency and high-definition Bluetooth audio codec.

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