Professional 24-bit USB Audio Interface
User’s Guide
ESI - Copyright © 2016
Revision 1, January 2016
www.esi-audio.com
ESI |
U22 XT |
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INDEX |
1. |
Introduction.................................................................................................................................. |
4 |
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1.1 |
Features................................................................................................................................................................ |
4 |
2. |
Installation.................................................................................................................................... |
5 |
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2.1 |
System Recommendation..................................................................................................................................... |
5 |
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2.2 |
Hardware Installation........................................................................................................................................... |
6 |
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2.3 |
Driver & Software Installation............................................................................................................................. |
6 |
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2.3.1 Installation under Windows .............................................................................................................................. |
6 |
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2.3.2 Installation under Mac OS X............................................................................................................................. |
8 |
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3. |
Windows Audio Settings.............................................................................................................. |
8 |
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4. Control Panel under Windows ................................................................................................... |
9 |
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4.1 |
Latency settings ................................................................................................................................................... |
9 |
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4.2 |
DirectWIRE ....................................................................................................................................................... |
10 |
5. Control Panel under Mac OS X................................................................................................ |
12 |
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6. |
Specifications.............................................................................................................................. |
13 |
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7. |
General Information.................................................................................................................. |
14 |
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ESI |
U22 XT |
1. Introduction
U22 XT offers a maximum of flexibility as fully bus powered USB device with pristine professional 24-bit audio quality.
It features 2 analog input and 2 analog output channels with RCA connection, a microphone preamplifier with XLR input and support for +48V phantom power, a Hi-Z instrument input for guitars, a high quality headphone output and TRS line outputs. Master and headphone volume as well as monitoring are controlled on the front panel.
On the software side, U22 XT provides low latency drivers with support for WDM, ASIO 2.0 and CoreAudio based on our EWDM and DirectWIRE technology. If you're looking for a really powerful USB audio solution for your PC or Mac to start working out of the box, then U22 XT is for you!
1.1 Features
The U22 XT hardware has these main features:
1.Microphone input with XLR/TRS combo connector, use this connector to connect a dynamic or condenser microphone.
2.Microphone input gain knob, controls the input volume of the microphone preamplifier.
3.48V switch, use this switch to enable phantom power for condenser microphones.
4.Mic/HiZ input selection switch, allows you to select the input signal: the microphone input (Mic), the instrument/guitar input (Hi-Z) or both. When the switch is in the middle position and both is selected, the microphone input signal will be recorded on the left input channel and the instrument signal on the right input channel.
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ESI |
U22 XT |
5.Peak LEDs, shows the input 1 and 2 input levels.
6.Mix control, allows you to control the input monitoring (i.e. whether you want to listen to the input signal in realtime or the computer playback signal or both). When the knob is turned all the way to the left (In), you can hear only the input signal. When it is turned all the way to the right (Out), you hear the output signal. In the middle position, you can hear both equally.
7.Hi-Z input gain knob, controls the input volume of the instrument / guitar input.
8.Hi-Z input with 1/4" connector, use this connector to connect to your electric guitar.
9.Power LED.
10.Master volume, allows you to control the master output volume.
11.Headphone output with 1/4" TRS connector, use this to connect your headphones.
12.Headphone gain, controls the headphone output volume.
13.Left and Right RCA input connectors, this is the stereo line input that connects to devices with line level outputs such as a mixing desk, a CD player or a synthesizer for example.
14.Front / Back selection switch, allowing you to select the RCA line inputs on the backside (when set to ‘Back’) or the microphone and instrument inputs on the front (when set to ‘Front’).
15.Left and Right 1/4" TRS outputs, this is the main balanced line output that connects to your active studio monitors, amplifier or an external mixing desk.
16.If required, this connects your unit to a standard laptop lock connector, preventing it from being stolen.
17.USB connection port, connects to your computer with the supplied USB cable.
2. Installation
2.1 System Recommendation
U22 XT is not simply a standard digital audio interface, but a high-resolution device capable of advanced processing of audio content. Even though U22 XT is built to have low-CPU resource dependability, system specifications play a key part in the U22 XTs performance. Systems with more advanced components are generally recommended.
Minimum System Requirements
PC
-Windows Windows Vista / 7 / 8 / 8.1 or 10 (32and 64-bit) operating system
-1 available USB 2.0 port
Mac
-Mac OS X 10.7 or higher
-1 available USB 2.0 port
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