Frequency Response Curve 1    

 

Test conditions: USB DAC in, -5dB sinusoidal signal, 20Hz-20kHz PO (32Ω load)    
Red: Left channel; Blue: Right channel    

General Specifications
Name/Model KA5 DAC chip DAC: CS43198 *2
Color Black/White Dimensions About 56.3*22*12mm
Weight About 19g Headphone impedance PO: 16~150Ω
Sampling rate display OLED display BAL: 16~300Ω
balanced output interface 4.4mm socket support DSD DSD64/128/256
Max sampling rate support 768K/32bit Firmware upgrade The system firmware can be upgraded using USB
DSD64/128/256 FiiO control Supported
192K/32bit (Coaxial)    
Buttons and Ports
USB
Type-C USB
3.5mm port Shared single-ended/SPDIF out
Buttons Menu selecting, function setting, volume adjusting, song switching
4.4mm port
Balanced out
OLED display
Displays sampling rate and working state
   
Audio Parameters
Parts of performance parameters of headphone out (3.5mm) 
Output power L+R≥136mW+136mW (16Ω, THD+N<1%, USB IN) Max output voltage ≥1.99V (32Ω, THD+N<1%)
L+R≥122mW+122mW (32Ω, THD+N<1%, USB IN) ≥2V (600Ω, THD+N<1%)
L+R≥13.5mW+13.5mW (300Ω, THD+N<1%, USB IN)
Output impedance
<0.3Ω
Frequency response 20Hz~20kHz, crosstalk≤0.1dB Channel crosstalk ≥72dB (1kHz, 32Ω)
20Hz~50kHz, crosstalk≤0.2dB Noise floor 1.6uV&1.0uV"A"
THD+N <0.00037% (0dB, 32Ω) SNR ≥124dB (32Ω, A-weighted)
<0.00035% (0dB, 600Ω) ≥126dB (600Ω, A-weighted)
Parts of performance parameters of headphone out (4.4mm)
output power L+R≥154mW+154mW (16Ω, THD+N<1%.USB IN) peak output voltage ≥2.9V (32Ω, THD+N<1%)
L+R≥265mW+265mW (32Ω, THD+N<1%, USB IN) ≥4V (600Ω, THD+N<1%)
L+R≥54mW+54mW (300Ω, THD+N<1%, USB IN)
output impedance
<0.35Ω
frequency response 20Hz~20kHz, crosstalk≤0.1dB channel separation ≥115dB (1kHz, 32Ω)
20Hz~50kHz, crosstalk≤0.2dB bottom noise 1.8uV&1.1uV"A"
distortion <0.00037% (-6dB, 32Ω) signal-to-noise ratio ≥128dB (32Ω A-weighted)
<0.00024% (0dB, 600Ω) ≥130dB (600Ω A-weighted)

THD+N Curve 1    

 

Test conditions: USB DAC in, 0dB sinusoidal signal, 20Hz-20kHz  high gain PO (32Ω load)
Red: Left channel;  Blue: Right channel

Frequency Response Curve 2

 

Test conditions: USB DAC in, -5dB sinusoidal signal, 20Hz-50kHz PO (32Ω load)
Red: Left channel;  Blue: Right channel

THD+N Curve 2

 

Test conditions: USB DAC in, -6dB sinusoidal signal,  20Hz-20kHz high gain BAL out (32Ω load)
Red: Left channel;  Blue: Right channel

Frequency Response Curve 3

 

tTest conditions: USB DAC in, -5dB sinusoidal signal, 20Hz-20kHz BAL out (32Ω load)
Red: Left channel;  Blue: Right channel

Frequency Response Curve 4

 

Test conditions: USB DAC  in, -5dB sinusoidal signal, 20Hz-50kHz BAL out (32Ω load)
Red: Left channel;  Blue: Right channel

Amplitude Distortion Curve 1

 

Test conditions: USB DAC in, 0dB sinusoidal signal, PO (600Ω)

Amplitude Distortion Curve 2

 

Test conditions: USB DAC in, 0dB sinusoidal signal, BAL out (600Ω)