FOX UA22 Professional Computer Audio Interface——S-Track S TRACK SCIENCE TECHNOLOGY CO., LTD

FOX UA22 Professional Computer Audio Interface

This is a professional plug-and-play computer audio interface designed for high-fidelity (Hi-Fi) audio enthusiasts and professional recording studios. Featuring two dedicated audio isolation transformers, it provides complete electromagnetic isolation to effectively eliminate computer ground potential noise, ground loop interference, and EMI/RFI noise, ensuring pure audio transmission and playback. Supporting high-resolution audio playback, it combines a low-noise DAC with a precision clock system to deliver exceptional Hi-Fi playback quality. Offering superior isolation performance and multi-channel support, it is ideal for desktop Hi-Fi systems, home theaters, and professional audio workstations.

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  • FOX UA22 Professional Computer Audio Interface

PRODUCT DESCRIPTION

Product Features

  • Plug-and-play design: USB Type-B interface requires no additional drivers, supports hot-swapping, and is compatible with Windows, macOS, Linux, and all domestic operating systems (HarmonyOS 3.0+, Kirin, etc.);
  • Dual isolation transformers: Features two dedicated audio isolation transformers for complete current isolation, blocking computer ground noise and reducing background noise;
  • High-Resolution Audio: Supports high-resolution audio playback with wide dynamic range, ensuring Hi-Fi-level detail reproduction;
  • Professional DAC and Amplification: Utilizes a high-performance DAC chip combined with a headphone amplifier, supporting high-impedance headphones;
  • Noise Suppression Technology: Low-jitter TCXO clock source eliminates EMI/RFI interference for a pristine audio environment;
  • Multi-output support: Balanced XLR connectors for stereo and multi-channel Hi-Fi systems;
  • Rugged design: Metal-shielded enclosure for electromagnetic interference protection, operating in environments from 0°C~50°C.

PRODUCT PARAMETERS

Category Parameter Item Parameter Description
Audio Performance Chip High-Performance DAC Chip
Signal to Noise Ratio 96dB (A-weighted, front-end output)
Total Harmonic Distortion + Noise < 0.0001% (-120 dB) @ 1 kHz, 0 dBFS
Dynamic Range 96dB (A-weighted)
Sampling Rate 44.1 kHz~48 kHz (PCM);
Bit Depth 16-bit
Frequency Response 20 Hz~20 kHz (±0.1 dB)
Isolation and Noise Suppression Isolation Type Current-isolated 2 x audio-dedicated transformers (TY-250P grade, 1:1 ratio)
Isolation Voltage > 5 kV (PC side to audio side)
Ground Noise Rejection > 60 dB (50/60 Hz ground loop)
EMI/RFI Shielding Metal-shielded enclosure + internal filtering circuitry
Power Isolation Built-in LDO regulator
Interfaces and Connectivity Analog Output Balanced XLR (stereo pair)
Headphone Output 3.5 mm unbalanced, supports 16-600 Ω
Input Interface Stereo UAC input for external source switching
Clock and Synchronization Clock Source Internal TCXO (temperature-compensated crystal oscillator, ±1 ppm accuracy)
Jitter < 200 ps (RMS)
Synchronization Mode Master mode/Slave mode
Physical and Environmental Dimensions (L x W x H) 70 mm x 36 mm x 100 mm
Weight 0.45 kg
Enclosure Material Metal shielding + PCB ground plane
Operating Temperature 0°C~50°C
Storage Temperature -20°C~70°C
Humidity 5%~95% (non-condensing)
Power and Safety Power Input USB computer power supply
Power Consumption < 8 W (typical, full channel output)
Drivers Driver Support Windows, MAC OS, Kylin OS, UnionTech UOS, and other domestic systems

APPLICATION SCENARIO

RELATED DOWNLOAD

Name SizeTimeDownload
FOX UA22 Professional Computer Audio Interface Datasheet 2026-03-04
FOX UA22 Professional Computer Audio Interface User Manual 2026-03-04

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