Personal USB Audio Mixer


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  • Features
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Designed as a personal USB audio mixer, the AT-UMX3 is the perfect tool for all streamers and podcasters who are looking for a simple and reliable solution that delivers high-quality, professional results. 

This plug-and-play mixer allows you to connect your favorite microphone and musical instruments, all while providing a loopback function so you can easily add in your in-game or PC audio directly to your livestream mix. 

With its compact design and intuitive layout, you’ll always have complete mix and monitoring controls ready at your fingertips. 


Introducing the Personal USB Audio Mixer


  • Plug-and-play USB connectivity
  • Neutrik XLR/6.3mm combo microphone jack (with 48V phantom power) and switchable Hi-Z guitar or stereo keyboard input
  • Loopback functionality for livestreaming PC audio
  • High-performance A/D converter with a resolution up to 24 bits/192 kHz
  • Separate gain and level controls for microphone and guitar or keyboard inputs
  • Convenient microphone mute button
  • Output peak and signal indicator lights
  • 6.3mm headphone output
  • Advanced noise-resistant design
  • Includes USB Type-A to USB-Type-C adapter and USB Type-C – USB Type-A cable 


Input Terminals MIC: XLR/TRS combo jack LINE (GUITAR): 6.3 mm (1/4”) standard jack (Hi-Z) LINE (KEYBOARD): 6.3 mm (1/4”) standard jack, L/MONO and R USB STEREO INPUT
Output Terminals HEADPHONE OUT: 3.5 mm (1/8”) stereo mini jack USB STEREO OUTPUT
USB USB 2.0, High Speed
Sampling Frequency Max. 192 kHz
Bit Rate 16 bit / 24 bit
Frequency Response USB input → monitor output: ±1.5 dB (20 Hz to 20 kHz) (with loopback ON, max. USB input level, and medium monitoring volume (at 1 kHz))
Power Supply USB-C bus power: 5 V, 500 mA
Power Consumption Max. 2.5 W
Dimensions 127 mm (5”) × 131 mm (5.2”) × 44 mm (1.7”) (W × D × H)
Weight 334 g (12 oz)
Finish Matte
Supported OS Windows: Windows 10, Windows 11 macOS: macOS Catalina, macOS Big Sur, macOS Monterey, macOS Ventura iOS: 16.4.1 iPad OS: 16.4.1 Android OS: 10, 11, 12, 13
Accessories Included USB cable (1.5 m (4.9'), USB Type-C to USB Type-A), USB conversion adapter (USB Type-A to USB Type-C)