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General| Purpose | Performance/stage |
|---|---|
| Product color | Black |
| Cables included | USB |
| Gain adjustment | Rotary |
| Connectivity technology | Wired |
| Power consumption (average operating) | 5 W |
| XLR in | Yes |
| USB 2.0 ports quantity | 1 |
| Speakers connectivity type | XLR / 1⁄4\ |
| Amplifier class | - |
| Frequency range | 44100 - 96000 Hz |
| Audio output channels | 2.0 channels |
| Peak power per channel | - W |
| Signal-to-Noise Ratio (SNR) | - dB |
| Total Harmonic Distortion (THD) | - % |
Weight and Dimensions| Depth | 119.2 mm |
|---|---|
| Width | 91.8 mm |
| Height | 44.6 mm |
| Weight | 151 g |
Describes the U-22 as a mobile audio interface supporting 24-bit/96 kHz recording and playback.
Highlights the U-22's asynchronous transfer system for accurate audio reproduction.
Details the U-22's mic preamp, +48V phantom power, and Hi-Z input support.
Explains symbols used for warnings and cautions to prevent accidents and hazards.
Warns against opening or modifying the product to prevent damage or injury.
Instructs to use only the specified AC adapter and handle it properly when unplugging.
Advises using a 5V external DC power supply and checking its warning indications.
Specifies using 1.5V AA batteries, reading labels, and closing the compartment cover.
Cautionary advice on handling the unit, avoiding drops, force, foreign objects, and liquids.
Guidelines for battery installation, type, mixing, removal, and cleaning after leaks.
Precautions regarding temperature, humidity, dust, sand, and vibrations during use.
Instructions to turn off power before connecting/disconnecting cables and adapters.
Advice on not using the unit at a loud volume for extended periods.
Discusses potential interference with other electrical equipment and general caution.
Instructions for cleaning the unit's exterior with a soft or damp cloth, avoiding harsh chemicals.
Notes that the unit may become warm during extended use, which is normal.
Procedure for handling malfunctions, including contacting customer service with specific details.
Lists trademarks and copyright notices for software and product names.
Details FCC compliance for Class B digital devices and measures to mitigate interference.
Mentions CE declaration for European Union countries.
Identifies and labels the top panel controls and indicators of the U-22.
Identifies and labels the back panel connectors and ports of the U-22.
Identifies and labels the controls on the right side panel of the U-22.
Identifies and labels the front panel jacks and XLR pinout of the U-22.
Instructions for downloading and installing the necessary driver for Windows operation.
Notes that driver installation is not required when using the U-22 with a Mac.
Explains the different power source options for the U-22: USB bus power, batteries, and external adapter.
Step-by-step guide to connect the U-22 to a computer via USB and turn it on.
Details how to connect the U-22 to an iPad using specific adapters and power sources.
Guides on connecting instruments and microphones using various cables to the MIC/Hi-Z and LINE IN jacks.
Instructions on how to supply +48V phantom power for condenser microphones using the 48V switch.
Explains how to adjust the input gain using the level indicator and the GAIN knob for optimal signal.
Details connecting headphones to the PHONES jack and speakers to the OUTPUT jacks.
Explains how to use direct monitoring for latency-free listening to input signals.
Troubleshooting steps for issues with device recognition and connection.
Solutions for no sound or low volume output issues, checking connections and settings.
Guidance on adjusting input gain and phantom power for correct recording levels.
Tips for resolving distorted input signals by adjusting levels and output volumes.
Solutions for audio skipping, including buffer size adjustments and power saving settings.
Steps to resolve issues preventing playback or recording, checking settings and connections.
Troubleshooting specific to iPad connectivity, checking power and source settings.
Details specifications for MIC/Hi-Z and LINE IN analog inputs, including gain, impedance, and levels.
Details specifications for L/R analog outputs and headphone outputs, including impedance and levels.
Lists frequency response and input conversion noise specifications for the device.
Specifies the number of channels supported for recording and playback.
Lists the supported sampling rates for audio processing.
Indicates the bit depth supported for audio conversion.
Specifies the interface type used for connection, such as USB.
Lists the available power sources for the device, including USB, DC adapter, and batteries.
States the maximum power consumption of the U-22.
Provides the physical dimensions of the U-22 unit.
States the weight of the U-22 unit.
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