Thursday, December 8, 2022
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FiiO M7 Review

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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.

Product Specifications

Main Unit
Name / Model No.M7Operating SystemDeeply customized Android
CPU ModelExynos 7270 14nmNo. of cores2
CPU operating frequency1.0GHzDACES9018Q2C
KeyboardVirtual QWERTY keyboardInput methodTouchscreen
Special featuresLDAC,FM radio,clock,gestures operationUser InterfaceAndroid / FiiO Music
Chips usedSoC: Samsung Exynos 7270 , DAC:ES9018Q2C,  FM chip:Si4705,Bluetooth chip:SAMSUNG  S5N5C10B01-6330
Connectivity
WIFIN/ABluetoothBluetooth V4.2
Bluetooth transmitterLDAC / aptX / aptX HD / SBCBluetooth receiverSBC / LDAC
HWA (LHDC)Available when playing on M7 or using M7 as USB DACUSBUSB-C 2.0
Display screen
Display size3.2 inchesNumber of colours2.62 million colours
Display typeIPS TFTViewable angleFull-view
Resolution480×800Pixel density292 PPI
TouchscreenYes
Storage
RAM768MBTotal ROM4GB
Storage expansion typeMicro SDROM available to the user2GB
Maximum storage expansionTheoretically 2TB (1 micro SD card slot)
Buttons and ports
ButtonsSide buttons + side volume wheel+ touchscreenCustom key mappingN/A
Headphone out3.5mm standard headphone output jack (shared PO/LO)Balanced outputN/A
Line out3.5mm standard headphone output jack (shared PO/LO)USB connectionUSB-C (charging / data transfer / USB DAC)
General
ColourBlack / Silver / Red / BlueDimensions52mm×109mm×13mm
WeightAbout 116gVolume control60 steps digital potentiometer
Recommended headphone impedance16~100 ΩEqualizer10-and EQ (±6dB), 9 presets+custom preset
Bass boostN/ATreble boostN/A
Balance control±5 dBGain controlN/A
USB DACAsynchronous 192kHz/24bitUSB AudioDSD64/128,DoP/D2P
Power specifications
USB power adapter5V/2A recommendedBatteryInternal 1880mAh Li-polymer battery
Charging indicationRed light indicates,blue light turns on after fully chargedCharging time<2.5 h(DC5V/2A)
Battery indicationYes (accurate battery % readings)
Battery Life & Test Conditions
3.5mm headphone output:≥20 h
Volume15LoadM3 open earbuds (27 Ω)
EQOFFScreenOFF
Test FileMP3 44.1kHz/16bit (Download link)
Bluetooth output:>26 h
Volume60Load32Ω
Test FileMP3 44.1kHz/16bit (Download link)ScreenOFF
Others
Firmware UpgradeSupported via zip file placed in internal storage or micro SD card
(*The product uses GPLv2 compliant firmware.)
Font sizeN/A
ClockSupportedThird-party apps supportN/A
Line output specifications
THD+N<0.004% (1 kHz/10kΩ)SNR≥117 dB (A-weighted)
Frequency response20Hz~90 kHz(-3dB)Noise floor<3 uV
Channel separation≥100 dB (1 kHz)Line level>1.2Vrms (10 kΩ/1 kHz)
Headphone out specifications (3.5mm headphone out jack)
Output power 1≥70mW(16Ω / THD+N<1%)Output impedance<2Ω (32Ω loaded)
Output power 2≥40mW(32Ω /THD+N<1%)THD+N<0.004%
Frequency response10Hz~90 kHz(-3dB)Peak output voltage3.35 Vp-p
SNR≥117 dB (A-weighted)Noise floor<3 uV
File format support
Lossless:DSD:DSD64 (“.dsf”,”.dff”)
APE FAST/High/Normal:192kHz/24bit(MAX)
Apple Lossless:192kHz/24bit(MAX)
AIFF:192kHz/24bit(MAX)
FLAC:192kHz/24bit(MAX)
WAV:192kHz/24bit(MAX)
WMA Lossless:96kHz/24bit(MAX)
Lossy compression:MP3, AAC, WMA, OGG…
Price:USD 199.99 (SGD 329)

 

Part 1: Introduction, Design and Build
Part 2: Usability
Part 3: Sound Quality
Part 4: Product Specifications
Part 5: Review Ratings, Summary

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