General Specifications
Name/Model ECHO MINI Hardware solution DAC: CS43131*2
Color Black/Sky blue/Pink Dimensions 80*54.5*14.5mm
Weight 55g Adaptive impedance PO: 16~150Ω
Display 1.99-inch 170*320 IPS full-view HD Color display BAL: 16~300Ω
Max. supported sampling rate DSD64/128/256 WAV:24bit/192K Firmware upgrade System firmware can be upgraded via USB
FLAC:24bit/192K APE:24bit/96K EQ Built-in support for EQ adjustment of audio sources up to 16bit/192K
MP3/OGG/M4A/WMA microSD card maximum supported storage 256G
SACD and DTS formats are not supported NTFS is not supported
Bluetooth Supports Bluetooth SBC transmission (Note: Apple Bluetooth headphones are not supported) Battery life 15h (output amplitude: 40mV)
Battery specification Lithium battery 1100mA    
Buttons and Ports
Type-C port Charging/Data transfer 3.5mm port Single-ended output
Button Multifunction button 4.4mm port Balanced output
microSD card slot microSD card placement Reset hole Device resetting
Audio Parameters
Performance and parameters of headphone output (3.5mm)
Output power L+R≥130mW+130mW (16Ω, THD+N<1%, USB IN) Peak output voltage ≥1.8V (32Ω, THD+N<1%)
L+R≥100mW+100mW (32Ω, THD+N<1%, USB IN)
L+R≥10mW+10mW (300Ω, THD+N<1%, USB IN) Output impedance <0.4Ω
Frequency response 20Hz~20kHz, attenuation≤0.1dB Crosstalk ≥73dB (1kHz, 32Ω)
20Hz~50kHz, attenuation≤0.1dB Noise floor 0.8uV"A"
THD+N <0.0006% (-5dB,32Ω) SNR ≥127dB (32Ω A-weighted)
Performance and parameters of headphone output (4.4mm)
Output power L+R≥150mW+150mW (16Ω, THD+N<1%, USB IN) Peak output voltage ≥2.8V (32Ω, THD+N<1%)
L+R≥250mW+250mW (32Ω, THD+N<1%, USB IN)
L+R≥43mW+43mW (300Ω, THD+N<1%, USB IN) Output impedance <0.7Ω
Frequency response 20Hz~20kHz, attenuation≤0.1dB Crosstalk ≥125dB (1kHz, 32Ω)
20Hz~50kHz, attenuation≤0.1dB Noise floor 0.8uV"A"
THD+N <0.0004% (-5dB,32Ω) SNR ≥131dB (32Ω A-weighted)

 

Frequency Response Curve 1
Test conditions: Local playback, -5dB ,0dB sinusoidal signal ,20Hz-20kHz, PO (32Ω load)
Blue: Left channel; Red: Right channel

Frequency Response Curve 2
Test conditions: Local playback, -5dB , 0dB sinusoidal signal ,20Hz-50kHz, PO (32Ω load)
Blue: Left channel; Red: Right channel

THD+N Curve 2
Test conditions: Local playback, -5dB ,0dB sinusoidal signal ,20Hz-20kHz,Balanced out (32Ω load)
Blue: Left channel; Red: Right channel

THD+N Curve 1
Test conditions: Local playback, -5dB ,0dB sinusoidal signal ,20Hz-20kHz,PO (32Ω load)
Blue: Left channel; Red: Right channel

Amplitude Distortion Curve 2
Test conditions: Local playback, 0dB sinusoidal signal,Balanced out (600Ω)

Amplitude Distortion Curve 1
Test conditions: Local playback, 0dB sinusoidal signal,PO (600Ω)