Frequency response curve 1

Test condition:-5dB sinusoidal signal,20Hz-20kHz,phone out (32Ωloaded)

Red: Right channel    Blue: Left channel

 

Frequency response curve 2

Test condition:-5dB sinusoidal signal,20Hz-50kHz,phone out (32Ωloaded)

Red: Right channel    Blue: Left channel

 

Frequency response curve 3

 

Test condition:-5dB sinusoidal signal,20Hz-20kHz,line out (10KΩloaded)

Red: Right channel    Blue: Left channel

 

Frequency response curve 4

Test condition:-5dB sinusoidal signal,20Hz-50kHz,line out (10KΩloaded)

Red: Right channel    Blue: Left channel

 

THD+N curve 1

Test condition:-10dB sinusoidal signal,20Hz-20kHz,Phone out(32Ωloaded)

 

THD+N curve 2

Test condition:-5dB sinusoidal signal,20Hz-20kHz,Balanced phone out(32Ωloaded)

THD+N curve 3

Test condition:-4dB sinusoidal signal,20Hz-20kHz,Line out(10KΩloaded)

 

THD+N curve 4

Test condition:-5dB sinusoidal signal,20Hz-20kHz,Balanced line out(10KΩloaded)

General specifications
Name/Model M11 Plus Hardware solution Soc: Snapdragon 660, DAC: ES9068AS*2, Amp: THX AAA-78*2, Bluetooth: QCC5124, USB: XMOS XUF208, NDK Femtosecond crystal oscillator*2
User Interface   Android/Pure Music/USB DAC/Bluetooth Receiver/AirPlay mode Color Black
Size ≈136.6x75.7x17.6mm weight ≈295g
Display 5.5 inches(720*1440) fully fit screen Volume control Slide or button control
RAM 4GB ROM 64GB/≈46GB
TF card Single TF card slot, theoretically support up to 2TB Gain control Low/medium/high
Channel balance L20~R20(0.5dB/level) Recommended headphone impedance 16~150Ω (SE output)/16~300Ω (BAL output)
Buttons and ports
Buttons Physical button + Touch Key + HOLD lock switch USB Two-way TYPE C USB3.0 (charging/data transmission)
Phone Output 3.5mm single-ended+2.5mm balanced+4.4mm balanced Line out(LO) 3.5 mm port(shared with PO)
COAX Output 3.5 mm port (shared with PO port. Supports up to 384kHz-24bit/DSD128) Balanced Line out 4.4 mm port(shared with 4.4mm balanced PO)
Features
WiFi 2.4GHz/5GHz,DLNA、AirPlay、WiFi music transfer/

Roon Ready

Bluetooth transmitter(5.0) SBC/AAC/APTX/APTX-HD/LDAC/LHDC
Bluetooth receiver(5.0) SBC/AAC/LDAC FiiO Link WiFi and Bluetooth control (Android), WiFi control (IOS)
MQA MQA 8x unfold All to DSD Yes
Double click to wakeup Yes In-vehicle mode Would power on/off automatically when vehicle engine starts/stops
Sampling Rate Supported Up to Local playback: supports up to 384kHz-32bit/DSD256 USB Audio 768kHz-32bit/DSD512(支持DoP/D2P/Native)
USB DAC: supports up to 384kHz-32bit/DSD256
Power-off timers sleep/Idle power off Equalizer 10-band EQ (±12dB), 8 presets+custom preset, custom EQ supported,PEQ supported
Firmware Upgrade Supports via zip file + TF card + OTA Navigation control Gesture control/2-Bottom navigation/3-Bottom navigation
Power Supply Parameters
Power supply QC3.0, QC4.0, PD2.0 and PD3.0 fast charge Battery capacity 6000mAh
Charging time ≈3.5h (QC4.0) Standby time >1000h
Battery life and test conditions  
3.5mm headphone output:14h
Volume 77 Gain L
Screen Off Test File MP3 44.1kHz/16bit
EQ Off Load 32Ω
2.5mm+4.4mm balanced output:14h  
Volume 88 Gain L
Screen Off Test File MP3 44.1kHz/16bit
EQ Off Load 32Ω
Audio parameters    
PO output parameters(High gain mode)
Output power ≥300mW(16Ω / THD+N<1%) Output impedance ≤1Ω(32Ω)
Output power ≥210mW(32Ω /THD+N<1%) Crosstalk ≥76dB(1kHz/32Ω)
Output power ≥33mW(300Ω / THD+N<1%) THD+N ≤0.00054%(1kHz/32Ω)
Noise floor ≤2.5μV(dbA) SNR ≥122dB(dbA)
Frequency response 20Hz~20kHz(-1dB)    
LO output parameters      
THD+N ≤0.0006%(1kHz/10kΩ) SNR ≥118dB(dbA)
Crosstalk ≥105dB(1kHz/10kΩ) Noise floor ≤2.5μV(dbA)
Frequency response 20Hz~50kHz(-0.5dB) LO Output Level 2.0V(1kHz/10kΩ)
PO balanced output parameters(High gain mode)        
Output power ≥400mW(16Ω / THD+N<1%) Output impedance ≤2Ω(32Ω)
Output power ≥660mW(32Ω /THD+N<1%) THD+N ≤0.00085%(1kHz/32Ω)
Output power ≥90mW(300Ω /THD+N<1%) Crosstalk ≥111dB(1kHz/32Ω)
Noise floor ≤2.5μV(dbA) SNR ≥126dB(dbA)
Frequency response 20Hz~80kHz(-1dB)    
LO balanced output parameters
THD+N ≤0.0004%(1kHz/10kΩ) SNR ≥125dB(dbA)
Crosstalk ≥104dB(1kHz/10kΩ) Noise floor ≤2μV(dbA)
Frequency response 20Hz~50kHz(-0.5dB) LO Output Level 3.0V(1kHz/10kΩ)
File format support    
Lossless

DSD:DSD64/128/256/512(“.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 MP3,OGG,WMA,AAC, etc.