Elevate your gameplay with tactical audio precision and audiophile-grade clarity. The Fosi Audio C3 combines proprietary StepSense AI footstep tracking, hardware 7.1 spatial surround sound, and high-resolution DAC performance into a sleek desktop sound card built for competitive gamers and music lovers alike.

Key Features

StepSense Footstep Enhancement

Powered by real-time AI processing, StepSense boosts critical footstep frequencies by 3 dB to 9 dB without distortion or alterations to explosions and gunfire, allowing you to hear enemy movements before seeing them.

Hardware 7.1 Spatial Audio

Experience a full 360-degree soundstage through your standard stereo headphones. Native multichannel processing delivers precise directional cues for tactical positioning without requiring extra driver software.

Audiophile Grade Architecture

Built with an XMOS XU316 USB receiver, CS43131 flagship DAC chip, and dual TPA6120 amplifier chips, the C3 supports PCM audio up to 32-bit/384kHz and DSD256 with an ultra-low distortion rate of 0.0004 percent.

Desktop Slider Controls and Ergonomic Chassis

Adjust volume and microphone levels independently using smooth physical sliders mounted on a CNC-machined aluminum alloy body set at a comfortable 5-degree tilt.

AI Microphone Noise Cancellation

Maintain clear squad communication with integrated voice noise suppression that filters out background noise and mechanical keyboard clicking with low latency.

Versatile Connectivity and Mode Switching

Features USB-C, Optical, Coaxial, and 3.5mm microphone inputs alongside 3.5mm headphone and RCA line outputs. Dual UAC 2.0 and UAC 1.0 modes ensure seamless compatibility across PC, Mac, PS5, Nintendo Switch, and mobile devices.

 What is in the Box

- 1 x Fosi Audio C3 Gaming DAC/Amp
- 1 x USB-C to USB-C/A Data and Power Cable
- 1 x Optical Audio Cable
- 1 x User Manual

Technical Specifications

- Chipset: XMOS XU316, Cirrus Logic CS43131, Texas Instruments TPA6120 x 2
- Maximum Sampling Rate: UAC 2.0 up to 32-bit/384kHz and DSD256, UAC 1.0 up to 16-bit/48kHz
- Headphone Power Output: 320mW + 320mW @ 32 Ohms
- Recommended Headphone Impedance: 16 Ohms to 300 Ohms
- Signal-to-Noise Ratio: 123 dB (A-weighted)
- Total Harmonic Distortion + Noise: 0.0004 percent
- Frequency Response: 20Hz - 20kHz (±0.06 dB)
- Inputs: USB-C, Optical, Coaxial, 3.5mm Microphone Input
- Outputs: 3.5mm Headphone Jack, L/R RCA Line Output
- Power Input: DC 5V via USB-C