General introduction

Name / Model No. M11S User Interface Android/Pure Music/USB DAC/Bluetooth Receiver/AirPlay mode
CPU Model Qualcomm Snapdragon 660 No. of cores 8
CPU operating frequency 8*Kyro 260(up to 2.2GHz) DAC

ES9038Q2m× 2

Hardware used

Soc: Snapdragon 660, DAC: ES9038Q2m * 2, AMP: OPA926 * 2, crystal oscillator: NDK femtosecond crystal oscillator * 2

Special Features High performance dual ES9038Q2M DACs |  670mW output power | 14 hours battery life Qualcomm Snapdragon 660 | 5.0 inch/720P bezel-less display | Android 10, SRC global bypass

Connectivity

USB TYPE C Two-way USB3.0 WiFi 2.4GHz/5GHz
Bluetooth Transmit SBC/AAC/APTX/APTX-HD/LDAC/LHDC Bluetooth Receive(5.0)

SBC/AAC/LDAC

AirPlay Supported DLNA/NAS UPNP protocol supported
FiiO Link Supported WiFi music transfer Supported
Display screen
Display size 5.0 inches Display type IPS Hi-Res incell screen
Resolution 1280×720 Touchscreen 10-finger multi-touch
Storage
RAM 3GB ROM 32GB
Storage expansion type Micro SD(TF card),Hidden TF slot ROM available to user About 16G
Maximum storage expansion 2TB (theoretically)    
Buttons and ports
Buttons

Physical buttons

USB Two-way TYPE C USB3.0(Charging/Data transmisson/USB DAC/USB Audio)
USB DAC 384kHz-32bit/DSD128 USB Audio

768kHz-32bit/DSD512(Supports DoP/D2P/Native)

Headphone Out (PO)

3.5mm single-ended

Line out(LO) 3.5 mm port(shared PO)

COAX Output

3.5 mm port (shared with PO port. Supports up to 384kHz-32bit/DSD128)

Balanced line out

4.4 mm port(shared with 4.4mm balanced PO)

General
Color Black Dimensions

Approx. 125.2 x74 x18.5mm

Weight About 271g  Volume control type

Button control

Recommended headphone impedance 16~150Ω (3.5mm headphone output) Equalizer

10-band EQ (±12dB), 8 presets+custom preset, custom EQ supported

16~300Ω (2.5mm+4.4mm balanced output)
Gain control L/M/H L/R channel balance adjustment L20~R20 (0.5dB every level)
Power specifications
USB power adapter QC4.0/ PD2.0 quick charge Battery capacity 5300mAh
Charging time About 3h (QC4.0 quick charge) Deep sleep time >1000h
Battery Life & Test Conditions
3.5mm headphone output:>14h
Volume 48 Gain High
Screen OFF Test File MP3 44.1kHz/16bit
EQ OFF Load 32Ω
2.5mm+4.4mm balanced output:>14h
Volume 37 Gain High
Screen OFF Test File MP3 44.1kHz/16bit
EQ OFF Load 32Ω
Others
Firmware Upgrade Supports via zip file + TF card + OTA All to DSD Supported
MQA Supports 8x MQA Navigation control Gesture control/2-Bottom navigation/3-Bottom navigation
Dark theme Supported Night Light Supported
Double click to wakeup Supported Power-off timers Supports sleep/Idle poweroff
In-vehicle mode Would power on/off automatically when vehicle engine starts/stops Pulsing Indicator Can be set to always on/breath/off, the brightness can be customized
Screenshot Screenshot by three-fingers swiping down and pressing both the power and the volume -
button
Locate Currently Playing Track with One-click Supported
Custom playlist sorting Supported Third-party apps support Supports any app
Headphone out specifications 1(3.5mm port, A-wt.)
Output power 1

≥300mW(16Ω / THD+N<1%)

Output impedance ≤1.5Ω
Output power 2

≥200mW(32Ω /THD+N<1%)

THD+N

≤0.00066%(1kHz/32Ω)

Output power 3 ≥23mW(300Ω / THD+N<1%) Separation ≥79dB(1kHz/32Ω)
Noise floor

≤ 1.8 μV (A-weighted)

SNR

≥ 123dB (A-weighted)

Line output specifications(A-wt.)
THD+N <0.00054%(1kHz/10kΩ) SNR

≥ 121dB (A-weighted)

Frequency Response

20Hz~20kHz(-0.5dB)

20Hz~50kHz(-2dB)

Noise floor

≤ 1.7 μV (A-weighted)

Balanced out specifications 2(2.5mm+4.4mm balanced output, A-wt.)
Output power 1 ≥550mW(16Ω / THD+N<1%) Output impedance

≤2.6Ω(32Ω)

Output power 2 ≥670mW(4.3V)(32Ω /THD+N<1%) THD+N <0.00043%(1kHz/32Ω)
Output power 3 ≥90mW(300Ω /THD+N<1%) Separation ≥112dB(1kHz/32Ω)
Noise floor <3.1μV SNR ≥123dB
Balanced line output specifications(A-wt.)
THD+N <0.00034%(1kHz/10kΩ) SNR >125dB
Frequency Response

20Hz~20kHz(-0.5dB)

20Hz~50kHz(-2dB)

Noise floor <2.2μV
Channel Separation >105dB(1kHz/10kΩ)    
File format support
Lossless: DSD:DSD64/128/256(“.iso”,“.dsf”,“.dff”),DST iSO
DXD:352.8K/24bit
APE FAST/High/Normal:384kHz/24bit(MAX)
APE Extra High:192kHz/24bit(MAX)
APE Insane:96kHz/24bit(MAX)
Apple Lossless:384kHz/32bit(MAX)
AIFF:384kHz/32bit(MAX)
FLAC:384kHz/32bit(MAX)
WAV:384kHz/32bit(MAX)
WMA LOSSLESS:96kHz/24bit(MAX)
Lossy compression: MP3, OGG, WMA, AAC, etc

Frequency response curve 1

Test condition:-5dB sinusoidal signal, 20Hz-20kHz, headphone output (32Ω load)

Red: Right channel    Blue: Left channel

 

Frequency response curve 2

-5dB sinusoidal signal, 20Hz-50kHz, headphone output (32Ω load)

Red: Right channel    Blue: Left channel

 

Frequency response curve 3

-5dB sinusoidal signal, 20Hz-20kHz, line output (10KΩ load)

 

Red: Right channel    Blue: Left channel

 

Frequency response curve 4

Test condition:-5dB sinusoidal signal, 20Hz-20kHz, headphone output (32Ω load)

Red: Right channel    Blue: Left channel

 

THD+N curve 1

Test condition:-3dB sinusoidal signal,Gain=H,48kHz 20Hz-20kHz,PO output (32Ω load)

 

 

THD+N curve 2

Test condition:-5dB sinusoidal signal, 20Hz-20kHz, line output (10 KΩ load)

 

 

THD+N curve 3

Test condition:play -6dB sinusoidal signal, 20Hz-20kHz, balanced output (32Ω load)

 

 

THD+N curve 4

Test condition:play -2dB sinusoidal signal, 20Hz-20kHz, balanced line output (10KΩ load)