Fosi Audio StepSense C3 Gaming Audio DAC & Headphone Amp

Product details

Footstep Detection: Detect and enhance footsteps in real time, helping you track enemy movement with greater precision and react faster in FPS games.

Noise Cancellation: Noise Cancellation reduces background distractions like keyboard clicks and fan noise with up to 40dB deep noise reduction, delivering cleaner voice chat for gaming, streaming, and calls.

Custom Sound Presets: Fine-tune your sound with EQ presets and customizable audio controls, optimized for different game genres and immersive listening across both competitive and casual gameplay.

HiFi-Grade Gaming Audio: Powered by XMOS and TI amplifier chips, C3 delivers clean separation, detailed imaging, and precise directional audio for gaming and music alike.

Powerful Across Platforms: Compatible with PC, PS5, Switch, headsets, and desktop speakers, C3 works as an all-in-one gaming DAC and amplifier for both competitive play and everyday entertainment.

General Specs

Chipset : XMOS XU316 + CS43131 + TPA6120*2
Maximum Sampling Rate : UAC 2.0：PCM 32-bit/384kHz; DSD256
UAC 1.0：PCM 16-bit/48kHz
OPT：PCM 24-bit/192kHz
COAX：PCM 24-bit/192kHz
Supported Headphone Impedence :16-300Ω
Input : Coaxial, Optical, USB-C (Power & Data), 3.5mm Microphone
Output : 3.5mm Headphone, RCA
Firmware Update : USB-C Online Update
Input Voltage : DC 5V
USB Driver : Required for DSD/Foobar2000
Windows 7/8/8.1/10/11 (Driver Required)
Mac OS X 10.6+, Linux (Driverless
Audio Parameters: 3.5mm Headphone Output (UAC)
Rated Power Output : L+R ≥ 320mW+320mW (32Ω / THD+N < 1%)
SNR : 123dB (A-weighting)
THD+N : 0.0004% (A-weighting)
Dynamic Range : 123dB
Noise Floor : ≤3μv (A-weighting)
Frequency Response : 20Hz-20kHz (±0.06dB)
RCA Output (UAC)
Rated Power Output : ≥2Vrms
SNR : 124dB (A-weighting)
THD+N : 0.0005% (A-weighting)
Dynamic Range : 124dB
Noise Floor : ≤3μv (A-weighting)
Frequency Response: 20Hz-20kHz (±0.06dB)

What‘s in the box？

Fosi Audio C3
User Manual
USB-A/C to USB-C Cable
Y-Splitter Cable