| General Specifications |
| Name/Model |
KA17 |
Hardware solutions |
DAC: ES9069Q*2, USB decoding: XMOS XU316*1 |
| Color |
Black/Blue |
Volume control |
Physical buttons |
| Weight |
About 33.5g |
Dimensions |
About 64×27.7×12.7mm |
| Driver-free mode (switch mode) |
Supported |
Desktop mode |
Supported |
| MQA |
Supported MQA full decoding |
Channel balance |
＜0.2dB |
| Gain level |
L/H |
Status display |
On the display: Transfer format, volume level, gain level, USB mode, sampling rate, etc. |
| Display |
0.91-inch OLED display |
Firmware upgrade |
Supports upgrade through USB |
| Max supported sampling rate |
PCM: Supported up to 768kHz/32bit |
Recommended impedance |
PO: 8~150Ω |
| DSD: Supported up to SD512 (Native), DOP256 |
BAL: 8~300Ω |
| SPDIF: Supported up to 96kHz/24bit |
| Buttons and Ports |
| Buttons |
Multifunction button*1; Volume up/down*1 |
USB |
Type-C USB2.0 (power supply/data transfer)/USB Type-C POWER IN (orange, powering) |
| Headphone output |
Standard 3.5mm port (PO/coaxial out shared) |
BAL output |
Standard 4.4mm port |
| Toggle switch |
Desktop mode switch*1 |
| Power Supply Parameters |
| Power supply |
DC 5V ≥1A |
| Audio Parameters |
| Parts of performance and parameters of headphone output (3.5mm, UAC decoding, Desktop mode: High Gain) |
| Output power |
L+R≥320mW+320mW (16Ω, THD+N＜1%) |
Output impedance |
＜1Ω |
| L+R≥270mW+270mW (32Ω, THD+N＜1%) |
Crosstalk |
≥75dB |
| L+R≥30mW +30mW (300Ω, THD+N＜1%) |
Output amplitude |
3Vrms |
| THD+N & Noise |
＜0.0015% (1kHz/-15dB@32Ω) |
SNR |
≥123dB (A-weighted) |
| Frequency response |
20Hz~50kHz: damping＜0.5dB |
Noise floor |
＜2.1uV (A-weighted) |
| 20Hz~20KHz: damping＜0.1dB |
| Parts of performance and parameters of BAL headphone output (4.4mm, UAC decoding, Desktop mode: High Gain) |
| Output power |
L+R≥460mW+460mW (16Ω, THD+N＜1%) |
Output impedance |
＜1.5Ω |
| L+R≥650mW+650mW (32Ω, THD+N＜1%) |
Crosstalk |
≥114dB |
| L+R≥90mW+90mW (300Ω, THD+N＜1%) |
Output amplitude |
4.5Vrms |
| THD+N & Noise |
＜0.0004% (1kHz/-8dB@32Ω) |
SNR |
≥126dB (A-weighted) |
| Frequency response |
20Hz~50kHz: damping＜0.5dB |
Noise floor |
＜2.2uV (A-weighted) |
| 20Hz~20KHz: damping＜0.1dB |
| Parts of performance and parameters of headphone output (3.5mm, UAC decoding, Non-Desktop mode: High Gain) |
| Output power |
L+R≥110mW+110mW (16Ω, THD+N＜1%) |
Output impedance |
＜1Ω |
| L+R≥140mW+140mW (32Ω, THD+N＜1%) |
Crosstalk |
≥80dB |
| L+R≥20mW +20mW (300Ω, THD+N＜1%) |
Output amplitude |
2Vrms |
| THD+N & Noise |
＜0.0015% (1kHz/-10dB@32Ω) |
SNR |
≥120dB (A-weighted) |
| Frequency response |
20Hz~50kHz: damping＜0.5dB |
Noise floor |
＜2.0uV (A-weighted) |
| 20Hz~20KHz: damping＜0.1dB |
| Parts of performance and parameters of BAL headphone output (4.4mm out, UAC decoding, Non-Desktop mode: High Gain) |
| Output power |
L+R≥150mW+150mW (16Ω, THD+N＜1%) |
Output impedance |
＜1.5Ω |
| L+R≥300mW+300mW (32Ω, THD+N＜1%) |
Crosstalk |
≥110dB |
| L+R≥30mW+30mW (300Ω, THD+N＜1%) |
Output amplitude |
3Vrms |
| THD+N & Noise |
＜0.0005% (1kHz/-3.5dB@32Ω) |
SNR |
≥120dB (A-weighted) |
| Frequency response |
20Hz~50kHz: damping＜0.5dB |
Noise floor |
＜2.2uV (A-weighted) |
| 20Hz~20KHz: damping＜0.1dB |
