FiiO KA5 USB Dongle - Portable DAC and Headphone Amplifier

DATA SHEET 

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)

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