| General Specifications |
| General Specifications |
| Name/Model |
ECHO NANO |
Hardware solution |
Main processor: Rockchip RK NanoD, DAC: CS43131 |
| Working mode |
Local playback/USB DAC mode/USB DATA mode |
| Color |
Black/Titanium/Green/White/Pink/Sky blue/Purple |
Weight |
About 33.5g |
| Dimensions |
About 84x23x14mm |
Volume control |
Knob |
| Display |
0.91-inch OLED display |
Recommended headphone impedance |
PO: 8~150Ω |
| Memory card |
Supports up to 256GB single micro-SD card, NTFS not supported |
Channel balance |
L12~R12 (0.5dB per level) |
| Buttons and Ports |
| Buttons |
Power button*1; Volume knob*1; Selection button
*2; Play/Pause button*1 |
USB |
Type-C USB2.0*1 (charging/data transfer) |
| Headphone output |
Standard 3.5mm port |
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|
| Special Functions |
| EQ adjustment |
5-band dynamic EQ adjustment (±10dB), 6 built-in EQ presets, custom EQ |
Sleep timer |
Supports power-saving shutdown, sleep timer |
| Sampling rate support |
USB DAC: up tp 48kHz/16bit; |
Firmware upgrade |
System firmware can be upgraded via USB |
| Local DAC: up to 192kHz/24bit; DSD256 |
UAC charging mode |
Supports regular/PC/phone mode |
| In-line controls |
Support |
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|
| Power Supply Parameters |
| Power supply |
5V/≥1A |
Charging time |
About 2.5h |
| Battery life and test conditions: |
| 3.5mm headphone output: 7h |
| Volume level |
52 |
Gain |
High gain |
| Display status |
OFF |
Playback track and format |
MP3 44kHz/16bit |
| EQ |
OFF |
Load |
32Ω |
| Decoding mode |
Local playback |
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|
| Audio Parameters |
| Performance and parameters of headphone output (3.5mm output, local DAC, high gain) |
| Output power |
L+R≥125mW+125mW (16Ω, THD+N＜1%, 1.4Vrms) |
Output impedance |
＜0.3Ω (32Ω) |
| L+R≥125mW+125mW (32Ω, THD+N＜1%, , 2.0Vrms) |
Crosstalk |
≥75dB |
| L+R≥15mW+15mW (300Ω, THD+N＜1%, 2.0Vrms) |
Peak output voltage |
5.8Vp-p |
| SNR |
≥129dB (A-weighted) |
THD+N |
＜0.0003% (1kHz/119dB@32Ω) |
| Frequency response |
20Hz~85kHz: attenuation＜2dB |
Noise floor |
＜0.7uV (A-weighted) |
| 20Hz~20KHz: attenuation＜0.03dB |
Dynamic range |
≥127dB (A-weighted) |
| Performance and parameters of headphone output (3.5mm output, local DAC, low gain) |
| Output power |
L+R≥60mW+60mW (16Ω, THD+N＜1%, 1.0Vrms) |
Output impedance |
＜0.2Ω (32Ω) |
| L+R≥30mW+30mW (32Ω, THD+N＜1%, 1.0Vrms) |
Crosstalk |
≥76dB |
| L+R≥5mW+5mW (300Ω, THD+N＜1%, 1.0Vrms) |
Peak output voltage |
2.9Vp-p |
| SNR |
≥123dB (A-weighted) |
THD+N |
＜0.0004% (1kHz/120dB@32Ω) |
| Frequency response |
20Hz~85kHz: attenuation＜2dB |
Noise floor |
＜0.7uV (A-weighted) |
| 20Hz~20KHz: attenuation＜0.02dB |
Dynamic range |
≥121dB (A-weighted) |
| Performance and parameters of headphone output (3.5mm output, USB DAC, high gain) |
| Output power |
L+R≥125mW+125mW (16Ω, THD+N＜1%, 1.4Vrms) |
Output impedance |
＜0.3Ω (32Ω) |
| L+R≥125mW+125mW (32Ω, THD+N＜1%, 2.0Vrms) |
Crosstalk |
≥75dB |
| L+R≥15mW+15mW (300Ω, THD+N＜1%, 2.0Vrms) |
Peak output voltage |
5.8Vp-p |
| SNR |
≥120dB (A-weighted) |
THD+N |
＜0.0018% (1kHz/-3dB@32Ω) |
| Dynamic range |
≥103dB (A-weighted) |
Noise floor |
＜1.9uV (A-weighted) |
| Frequency response |
20Hz~20KHz: attenuation＜0.03dB |
|
|
| Performance and parameters of headphone output (3.5mm output, USB DAC, low gain) |
| Output power |
L+R≥60mW+60mW (16Ω, THD+N＜1%, 1.0Vrms) |
Output impedance |
＜0.3Ω (32Ω) |
| L+R≥30mW+30mW (32Ω, THD+N＜1%, 1.0Vrms) |
Crosstalk |
≥76dB |
| L+R≥5mW+5mW (300Ω, THD+N＜1%, 1.0Vrms) |
Peak output voltage |
2.9Vp-p |
| SNR |
≥114dB (A-weighted) |
THD+N |
＜0.0019% (1kHz/-3dB@32Ω) |
| Dynamic range |
≥103dB (A-weighted) |
Noise floor |
＜1.9uV (A-weighted) |
| Frequency response |
20Hz~20KHz: attenuation＜0.02dB |
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| Audio Format Supported |
| Lossless compression |
DSD: DSD 64/128/256 (dsf, dff)
APE : 192KHz/24bit (MAX)
FLAC: 192Hz/24bit (MAX)
WAV: 192KHz/24bit (MAX) |
| Lossy compression |
MP3, OGG, WMA, M4A, etc. |
