FiiO K3s

Elevate your computer with powerful decoding

Just connect the K3s to your computer via USB to instantly upgrade to high-fidelity sound, and enjoy your music the way it was meant to be heard. Equipped with an XMOS USB receiver chip, the K3s is capable of decoding up to 384kHz/32 bit PCM and native DSD256.

Great “core” improvement

The K3s employs the flagship portable ESS DAC, the ES9038Q2M. Compared to the AK4452, the signal-to-noise ratio has increased by 14dB and distortion has reduced by 13 dB. The circuit design implementing this DAC has been optimised for a low noise floor and clean sound.

Simply reliable USB power

The K3s adopts the modern USB Type-C input interface for a more reliable and stable connection, including that of power. However, care to ensure an uncompromised power supply doesn't stop there, the K3s implements overvoltage protection (OVP) and a double-filter circuit to ensure power supply stability, while the digital and analogue audio circuits each get their own power supply to greatly reduce crosstalk.

Gain and bass switches to enhance your experience

The switch for high and low gain ensures that you can use the K3s with a wide variety of headphones, and that your listening volume needs are covered. The hardware bass boost switch
enhances the dynamic range of the lower frequencies and gives them some extra punch to really make your songs, games, and movies come to life.

Specification

• USB : Type-C
• USB Audio Class : UAC1.0 + UAC2.0
• Gain : L/H
• Bass Boost : 0/+6dB
• Coaxial Out : RCA for 192kHz, support DSD64 DOP
• Optical Out : Up to 96kHz
• Output Power 1 (3.5mm headphone output) : 220mW(16Ω) 120mW(32Ω)
• Output Power 2 (2.5mm TRRS balanced headphone output) : 320mW(16Ω) 200mW(32Ω)
• Line Level : 1.9Vrms
• SNR : ≥113dB
• THD+N : ≤0.004%
• Frequency Response : 20Hz-80kHz