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The built-in USB port provides a direct connection to the computer, without the need for additional audio interfaces.
  • Provides 4 stereo playback devices (from PC to “USB inputs” on the console).
  • Provides 4 stereo recording devices (“USB outputs” from the console to the PC).
This means the computer can send 4 stereo signals to the console, and receive another 4 stereo signals from it.
Although USB is technically a data port, in this context we refer to it as USB audio inputs and outputs.
  • The console’s “USB outputs” correspond to USB recording devices in Windows.
  • The console’s “USB inputs” correspond to USB playback devices in Windows. Keeping this in mind is essential for correctly understanding the signal flow.
The signal assignment to the USB outputs (i.e., the USB recording devices in Windows) is configured from the console in the SETTINGS → OUTPUTS screen.

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USB Driver Installation

The following description refers to the built-in USB connector on the Rear Panel of the UX24 and UX18 models.
To install an external UDX-USB adapter, refer to the section: UNIDEX External Adapters
UNIDEX requires its own USB driver for the device to be correctly recognized in Windows.

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Installation Steps:

  1. Connect the console’s USB port to the PC using the supplied USB A/B cable.
Using poor quality or damaged cables can cause the computer to not recognize the USB device correctly or to identify it with errors.
  1. Download the driver: Download Center
  2. Run the installer and follow the instructions.

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USB Devices in Windows

Once the driver is correctly installed, Windows will display: Playback devices (outputs from the PC to UNIDEX):
  • Solidyne USB OUT 1 → USB Input 1 (UX24)
  • Solidyne USB OUT 2 → USB Input 2 (UX24)
  • Solidyne USB OUT 3 → USB Input 3 (UX24)
  • Solidyne USB OUT 4 → USB Input 4 (UX24)
Recording devices (sends from UX24 to the PC):
  • Solidyne USB IN 1 ← USB Output 1 (UX24)
  • Solidyne USB IN 2 ← USB Output 2 (UX24)
  • Solidyne USB IN 3 ← USB Output 3 (UX24)
  • Solidyne USB IN 4 ← USB Output 4 (UX24)
These outputs are assigned from the screen at: SETTINGS → OUTPUTS

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ASIO 3.0 Compatibility

ASIO 3.0 compatibility allows for the shared and simultaneous use of different USB channels between different applications, even if they are not ASIO compatible.

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Advanced Application Example:

  • The automation software plays music through the USB 1 channel via WDM.
  • Another processing software (such as an ASIO effects host) takes the USB 2 return channel from the console and applies VST effects in real time to the microphone voices.
Video Tutorial: Using External VST Effects