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
Sampling rate indicator LCD 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 Battery life 15h (volume level 15)
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% (0dB,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% (-4dB,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)