USB Mobile Recording and Performance Interface


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The U-22 from Zoom is a mobile USB 2.0 recording and performance interface, featuring two analog inputs and two analog outputs, in an ultra-portable housing that makes it easy to connect to a laptop or iPhone/iPad for on-the-go audio creation. A low-noise microphone preamp allows for recording vocals, instruments and more, with resolutions up to 24-bit/96 kHz.

The XLR/TS combo input can record a microphone or line-level source, and provides 48V phantom power and Hi-Z support for connecting a guitar or bass. A mini stereo input is also available for recording an iPad, mixer, or other portable audio device. Only one recording input can be used at a time. When using the line input, the XLR/TS combo input is disabled.

For zero-latency recording and mixing, a direct monitoring switch allows listening to the input signal before it passes through the computer. Separate RCA output jacks and an independent headphone output provide multiple options for monitoring.



  • Stereo USB audio interface for Windows, Mac, iPhone, or iPad
  • Connect to iPad with Apple iPad Camera Connection Kit or Lightning-to-USB Camera Adapter (sold separately)
  • XLR/TS input with microphone preamp with Hi-Z input support
  • +48V phantom power
  • Gain control knob for microphone/Hi-Z input
  • Stereo mini line input
  • Zero-latency direct monitoring
  • Recording and playback at resolutions up to 24-bit/96 kHz
  • Dedicated left/right outputs on RCA connectors
  • Stereo mini headphone output
  • Includes download code for Ableton Live 9 Lite
  • Power via two AA batteries (not included) or optional AC adapter
  • Approximately five hours of operation with AA alkaline batteries
  • Accepts standard AA alkaline or NiMH rechargeable batteries
Interface USB 2.0
Channels 2 Input, 2 Output
Resolution 24-bit
Sampling Rates 44.1, 48, 88.2, 96 kHz
Analog Input Mic/Hi-Z 
Connector: 1 x XLR/TRS combo 
Input Gain: 0 to 43 dB 
Input Impedance: 2.6 kOhms (Mic), 484 kOhms (Hi-Z) 
Maximum Input Level: -0.8 dBu (Mic), +8.7 dBu (Hi-Z) 
Phantom Power: +48 V 

Line In
Connector: 1 x 1/8" TRS stereo mini 
Input Impedance: 22 kOhms
Maximum Input Level: +1.0 dBu
Analog Output Output Left/Right
Connector: 2 x RCA phono
Maximum Output Level: -0.8 dBu @ 0 dBFS into 10 kOhms load 
Output Impedance: 1 kOhms

Connector: 1 x 1/8" TRS stereo mini 
Output: 2 x 10 mW into 32 Ohms load 
Output Impedance: 10 Ohms
Frequency Characteristics 20 Hz to 20 kHz, +/-1.5 dB @ 44.1 kHz
20 Hz to 40 kHz, +/-2 dB @ 96 kHz
Input Noise Measured EIN: -120 dB or less (IHF-A) with 43 dB, 150 Ohms input
Power Requirements USB bus power (Type-B)
5 VDC power supply (micro-B)
2 x AA batteries (about 5 hours continuous operation with phantom power off)
5 W maximum power consumption
System Requirements Mac
Intel Core i3 or faster
OS X 10.9.5 or later, 10.10, 10.11
USB 3.0/USB 2.0*
* Operation is not guaranteed when used with USB hubs or expansion cards

iOS 7.1 or later
Requires 2 AA batteries or optional AC adapter for power, plus an Apple iPad Camera Connection Kit or Lightning-to-USB Camera Adapter

Intel Core i3 or faster*
Windows 7 SP1 or later, 8.1, 10 (32-/64-bit)
USB: USB 3.0/USB 2.0**
* Operation is not guaranteed with CPUs from Atom, Celeron or Pentium series or CPUs made by AMD
** Only USB host controllers with Intel Chipsets are supported and operation is not guaranteed when used with USB hubs or expansion cards
Dimensions (WxDxH) 3.6 x 4.7 x 1.8" (92 x 119 x 45 mm)
Weight 5.3 oz (151 g)
Packaging Info
Package Weight 1.0 lb
Box Dimensions (LxWxH) 6.9 x 6.2 x 2.6"
More Information
Price $139.99
Vendor Item Number ZU22
Special Order 1
Coming Qty 0
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