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Lexicon I-ONIX U22 USB 2.0 Audio/MIDI Interface

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Brilliantly designed, the I-ONIX U22 desktop recording interface from Lexicon fits where it makes the most sense, between your keyboard and monitor. Lexicon understands you care passionately about you... Click To Read More About This Product

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Brilliantly designed, the I-ONIX U22 desktop recording interface from Lexicon fits where it makes the most sense, between your keyboard and monitor. Lexicon understands you care passionately about your music, and that it's more than just a pastime, which inspired them to create the I¢ONIX U22, putting all monitor and input level controls at your fingertips.

Featuring dbx microphone preamps on both channels, the I¢ONIX series recording interfaces are more than equipped to provide professional recordings that keep your music sounding its best. The preamps run on a high-voltage supply to guarantee stability and provide you with a superior recording across a wide dynamic range. Performance driven AD/DA converters ensure pristine 24-bit/96kHz audio to capture every subtle detail of your performance.

The included Pantheon II VST/AU reverb plug-in features 6 reverb types with 16 adjustable parameters, as well as 35 factory presets that range from Vocal to Live Sound and Special Effects. It's easy to complete your mix and make your music sound its best with these exquisitely rich, full reverbs that have made Lexicon the world leader in digital reverbs.

Also included with the Lexicon I&bull:ONIX U22 is a software suite featuring Steinberg's Cubase LE4 and Toontrack EZdrummer Lite.


  • USB 2.0 connection to DAW”up to 480Mbps
  • 44.1 to 96KHz sample rates, 24-bit resolution
  • 2 Analog 1/4" and XLR combi-jack inputs on the rear panel for mic/line inputs
  • 2 Analog 1/4" TRS (Stereo Main) outputs
  • 2 dbx high-voltage, ultra-low noise mic preamp's on all analog mic/line inputs (2 total)
  • 1 Hi-Z instrument input
  • Supports Windows and Mac platforms
  • 48V phantom power for each input pair
  • Input signal metering via 8 LED's per channel
  • Signal mixing and stereo bus signal metering
  • 1/4" high-output headphone connection
  • MIDI In/Out
  • Zero-latency monitoring
  • Low-latency ASIO drivers
  • Lexicon Pantheon II VST/AU reverb plug-in
  • Software suite includes Steinberg's Cubase LE4, and Toontrack
  • EZdrummer Lite
  • Microphone Inputs: Female XLR Pin 2 Hot
  • Input Impedance: 3kÎ balanced
  • Phantom Power: +48 Volts
  • Maximum gain: +55dB
  • E.I.N. (at max gain): 127dB @ 55dB gain typical (150Î source), 130dB @ 55dB gain typical A-weighted (150Î source)
  • Maximum Input Level: +8dBu
  • Frequency Response: +/ 1.5dB, 20Hz-20kHz
  • THD+N: <0.02%, 20Hz-20kHz, <0.002%, 1kHz, -6dBu
    Line Inputs: 1/4" TRS balanced or unbalanced
  • Input Impedance: 20kÎ balanced, 13kÎ unbalanced
  • Maximum Input Level: +18dBu
  • Frequency Response: +/ 1.5dB, 20Hz-20kHz
  • THD+N: <0.02%, 20Hz-20kHz, <0.002%, 1kHz, +18 dBu
    Instrument Input: 1/4" TS unbalanced
  • Input Impedance: 1MÎ
  • Maximum Input Level: +10dBu
  • Frequency Response: +/ 2.5 dB, 20Hz-20kHz
  • THD+N: <0.08%, 1kHz, +4dBu
    Line Outputs: 1/4" TRS balanced or unbalanced
  • Level: +18dBu maximum
  • Impedance: 32Î Balanced, 16Î Unbalanced
  • Headphone Output: 1/4" stereo jack 250mW per channel at 50Î
  • MIDI Interface: 5-pin DIN connectors for MIDI in and MIDI out
  • Sample Rate: 44.1, 48, 88.2, or 96kHz (determined by computer application)
  • Dynamic Range: A/D (24 Bit) 108dB typical, A-weighted, 20HZ-20kHz
  • D/A (24 Bit) 110dB typical, A-weighted, 20Hz-20kHz
  • A/D/A (24 Bit) 106dB typical, A-weighted, 20Hz-20kHz
  • Power requirements: Power adaptors for 100”240 VAC, 50/60Hz, 15W
  • Customer Reviews

Review Snapshot

by PowerReviews

(based on 3 reviews)

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Reviewed by 3 customers

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(7 of 7 customers found this review helpful)


This is the answer for 64-Bit Windows desktops

By Mark A

from Natick, MA

After upgrading to Windows Vista 64-bit my Lexicon Lamdba became a desk ornament(Lexicon Pro engineers appear to not want to develop 64-bit drivers for the Lambda. The U22 Works great as my audio interface to Sonar 7. And I'm psyched to have Pantheon again. The only (very minor)complaints are: 1. It really doesn't fit up between my dell 23" monitor and keyboard as advertised, but that may be the fault of my Dell as it is not height adjustable; 2. The line input and headphone output are on the sides so you really can't stick the device on a shelf 3. You need to download the device drivers if installing on a 64-bit system Apart from that it is a great sounding, easy to use and cool-looking interface that does what it is supposed to do quite well. Since I work alone in my project studio, I don't need multiple inputs and the Latency issues around them is a non-starter for me. Buy this unit, you will be glad you did.

(6 of 6 customers found this review helpful)


A Clean Machine

By Will

from Reno, NV

Pros: Easy setup, no-hassle drivers, and very CLEAN sound (will actually record at 24-bit @ 96K, as advertised). Cons: it has only two audio inputs that can work at the same time. Details: The Lexicon I-Onix U22 works extremely well on a Microsoft Vista (32 bit) platform, in the software environment of Cakewalk Sonar 7.0. (I haven't tested the product in a different platform or DAW program.) After trying to make the M-Audio Fast Track Ultra work on both Microsoft Vista and Windows XP, I threw in the towel and took the M-Audio Fast Track Ulta back to the seller. The problems I had with the M-Audio were constant popping, cracking, and sputtering, when laying down simple vocals. Very depressing. However, my head ache quickly disappeared after I picked up the Lexicon I-Onix U22. Simply put: it is one CLEAN machine! No pops. No cracks. No sputtering. It has an AWESOME, clean sound. The drivers were no-fuss to download, no-muss to install, and deliver a great sound. Also, it was a breeze getting it to record at a 24-bit sample rate at 96k. Earlier, I had problems getting that good setting to stay pat in the M-Audio Fast Track Ultra. (The M-Audio kept switching back to a setting of 16-bit, 48K--even though I kept trying to get it to stick at 24-bit/96k. It's possible that I didn't set the parameters correctly, so if it's my operator error, I don't want to blame the M-Audio. Yet, the Lexicon Ionix appeared to steer me clear of confusion and errors in setting the various playback and audio settings. The user manual showed me how to set those parameters in the Windows Audio Settings, in a way I couldn't screw up--it was fool proof.) The only apparent downside of the I-Onix U22 is a design feature that limits the number of audio inputs. This limitation doesn't adversly affect my needs because I record in a home studio, one track at a time--not live (where one would need multiple audio inputs to record at the same time). To be specific, there are three audio inputs, which really boil down to two audio inputs because, when the instrument-audio input is used (on the side of the I-Onix U22), one of the other audio inputs (i.e., Mic/line Input No. 1 on the back of the machine) is deactivated. However, as I said, it doesn't affect my needs, because I need only ONE mic/line input at a time. I lay my vocal or live tracks down one by one, in Cakewalk Sonar. There is also a midi-in and midi-out slot on the back, if you run external midi modules. Bottom Line: if you need a good, clean machine without more than two live-time audio inputs, this is a great buy!

(5 of 10 customers found this review helpful)


Great product, poor driver support

By Chris

from Hollywood, CA

The Lexicon I-ONIX U22 looks good and provides all the features I was looking for in a USB audio interface. However, the driver support is terrible. Under OSX 10.5 (Leopard) the device fails to work after the computer resumes from sleep... a full shutdown-restart is required. I notified LexiconPro of this issue a couple of months ago and although they agree it's a driver issue, it's still unresolved. Also, despite the fact that OSX 10.6 (Snow Leopard) has been available to developers for over a year now, Lexicon, does not have drivers available for Apple's latest operating system and has no idea when they might be available. The device is not even recognized in OSX 10.6!!! Frustrating to say the least. Avoid this product until this company sorts out it's driver issues.

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