This user guide covers the installation, driver setup, audio settings, and control panel functions for the ESI U22 XT 24-bit USB Audio Interface.
The ESI U22 XT is a professional 24-bit USB audio interface designed for PC and Mac. It features two analog input channels with a microphone preamplifier supporting +48V phantom power, a Hi-Z instrument input for guitars, and RCA line inputs. The device is fully bus-powered via USB and offers low-latency drivers supporting WDM, ASIO 2.0, and CoreAudio technologies.
| Bit Depth | 24-bit |
|---|---|
| Analog Inputs | 2 channels |
| Analog Outputs | 2 channels |
| Microphone Input | XLR/TRS combo |
| Phantom Power | +48V |
| Instrument Input | Hi-Z |
| Line Inputs | RCA |
| Line Outputs | 1/4" TRS |
| Headphone Output | 1/4" TRS |
| USB Connection | USB 2.0 |
No, the U22 XT is a fully bus-powered USB device and does not require a separate power supply.
The U22 XT provides low latency drivers with support for WDM, ASIO 2.0, and CoreAudio.
Yes, Mac OS X provides support for class compliant USB audio devices like the U22 XT, so no software or driver needs to be installed to use it.
DirectWIRE is a driver technology that allows applications to record from other application's audio outputs without external wiring or data loss.