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FiiO K3 Technical Specifications
Model Name K3
Color Black
Weight 82g
Dimensions 70×58×22mm
Volume Knob ADC
Audio Input Type-C USB
USB Audio USB 1.0 / USB 2.0
Chip XMOS XUF208
USB Driver ASIO/KS/DS/WASAPI/DSD DOP(Native)
DAC AKM AK4452
Driver OP AMP OPA926×2
LPF OP AMP TI OPA1612
Gain Boost L/H
Bass Boost 0/+6dB
Headphone Out 1 3.5mm single-ended output
Headphone Out 2 2.5mm TRRS balanced output
Line Out 3.5mm
Coaxial Out RCA for 192kHz, support DSD64 DOP
Optical Out Up to 96kHz
DriveAbility 16-150 Ω
Output Power 1 (3.5mm headphone output) 220mW(16Ω); 120mW(32Ω)
Output Power 2 (2.5mm headphone output) 320mW(16Ω); 200mW(32Ω)
Power Input Recommend DC5V 500mA
Battery Capacity N/A
THD+N ≤0.004%
Output Impedance <1.04 Ω
Frequency Response 20 Hz~80 kHz
SNR >113 dB (A-weighted)
Line Level 1.9Vrms
Crosstalk ≥70 dB (1 kHz)
MAX Output Voltage 7.39 Vp-p
MAX Output Current 81.6 mA