2 Mic Inputs, 2 Guitar Inputs, 6 Line Inputs, 8 Line Outputs, USB 2.0
Our Price $1,149.00

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The UltraLite AVB 18 x 18 from MOTU is a USB 2.0 audio interface that records at up to 24-bit, 192 kHz resolution, and features DSP mixing, Wi-Fi control and AVB audio networking. It is ideal for a multitude of audio recording applications for your mobile, project or home studio.

The UltraLite AVB 18 x 18 boasts 2 mic inputs, 2 guitar inputs, 6 line inputs, 8 line outputs, headphone out and 8-channel optical I/O for a total of 18 inputs and 18 outputs, simultaneously. The optical ports also support stereo TOSLink (optical S/PDIF). The unit also features a large backlit 128 x 48 pixel LCD screen that lets you view all signal activity at a glance with detailed metering for all analogue and digital I/O. Access to hardware settings are available from a simple and convenient menu, and quick setup templates are available for many common use cases.

By connecting a Wi-Fi router directly with a standard Ethernet cable, you can control the UltraLite AVB's mixing and DSP effects from your smartphone or tablet, without a computer. This is especially handy for mixing live sound. For more I/O, the system can be expanded by daisy-chaining a second MOTU interface via Ethernet cable, and for even more, up to five MOTU interfaces can be linked using a MOTU AVB Switch (sold separately).

Key Features

Universal Connectivity

The UltraLite AVB connects to your computer with audio class compliant hi-speed USB 2.0 (compatible with USB 3.0 and iOS) for across-the-board compatibility now and in the future. Alternately, if you have a Mac running OS X Yosemite (10.10) or later, you can use a standard Ethernet cable for operation as an audio interface. Either way, the UltraLite AVB is compatible with all audio software

DSP-Powered Mixing

Console-style mixing with 48 channels and 12 busses. Each channel features modelled analogue AEQ and compression and uses 32-bit float precision processing. The UltraLite AVB models classic British EQs and also provides a classic compressor with peak/RMS operation on each input channel. Groups and the Main Mix bus are equipped with MOTU's Leveller, a model of the legendary Teletronix LA-2A optical levelling amplifier, known for its sought-after Automatic Gain Control (AGC) characteristics

Web App Control

The software that you use to control the UltraLite doesn't reside on your hard drive. It's a web app served from the hardware itself. This means you can control the UltraLite's on-board DSP, mixing, device settings, and network audio routing from the web app software running in your favourite web browser on a laptop, tablet or smartphone connected by wire or Wi-Fi to your local area network. Use any web client on Mac, Windows, Linux, iOS or Android, as long as it shares the same network

Included Software
  • MOTU AVB Discovery App for Mac (finds connected MOTU interfaces)
  • MOTU AVB Discovery App for iOS (available from Apple App Store)
  • MOTU AVB Control web app (served from the hardware itself)
  • AudioDesk 4.0 for Mac & Windows (separate download)


Sample Rates44.1, 48, 88.2, 96, 176.4, 192 kHz
Mic Input2x XLR mic inputs
Preamp Gain: 0 to +56 dB (digitally controlled)
Analogue Inputs2x 1/4" hi-Z guitar inputs (front panel)
6x 1/4" TRS line inputs (balanced/unbalanced)
Max Level: +24 dBu (digitally adjustable -96 to +22
Analogue Outputs8x 1/4" TRS line out (balanced, DC coupled)
Max Level: +20 dBu (digitally adjustable -4 to +20)
1x 1/4" TRS stereo headphone
Total I/O Channels18 inputs and 18 outputs (36 total) at 1x sample rates
14 inputs and 14 outputs (28 total) at 2x sample rates
10 inputs and 10 outputs (20 total) at 4x sample rates
Computer I/O1x USB 2.0 audio class compliant, USB 3.0 and iOS compatible
1x AVB Ethernet (requires OS X Yosemite)
Headphone1x 1/4" TRS stereo phone (assignable)
Phantom Power2x individual +48V
Front Panel1x 1/4" TRS headphone output
2x TRS hi-Z guitar input
1x digital rotary encoders • main/phone volume
2x digital rotary encoders • guitar input gain/power
2x digital rotary encoders • mic preamp gain
4x switches • (2) Pad and (2) 48V Phantom switch
128 x 48 pixel LCD for level metres / menu nav
PowerExternal 12-18V DC power supply, 1.0A max tip pos or neg
Mac System Requirements1 GHz Intel-based Mac or faster
2 GB RAM; 4 GB or more recommended
Mac OS X version 10.8 or later
Available high-speed USB 2.0 or AVB Ethernet port
A large hard drive (at least 500 GB for recording)
*AVB Ethernet audio interface operation requires OS X Yosemite
Windows System Requirements1 GHz Pentium-based PC compatible or faster
2 GB RAM; 4 GB or more recommended
Windows 7 or later
Available USB 2.0 or 3.0 port
Available Ethernet port for firmware updates
A large hard drive (at least 500 GB for recording)
Web App SupportAny Web Client Platform: Mac, Windows, Linux, iOS, Android
Any Web Browser: Safari, Firefox, Chrome, Opera, Explorer and more
Web client must be connected to the same network as the MOTU AVB interface by wire or Wi-Fi
Operating SystemsFor Computer Audio I/O: Mac OS X 10.8 or later; Windows 7 or later
For Web App Control: Mac, Windows, Linux, iOS, Android
Connector TypeLine Output: 1/4" TRS, balanced, tip hot
Line Input: 1/4" TRS, bal/unbal, tip hot
Mic Input: XLR, balanced, pin 2 hot
Phones: 1/4", TRS stereo
Dynamic RangeLine Output: 117 dB, A-weighted
Line Input: 110 dB, A-weighted
Mic Input: 112 dB, A-weighted
Phones: 112 dB, A-weighted
THD+NLine Output: -101 dB, unweighted
Line Input: -102 dB, unweighted
Mic Input: -104 dB, unweighted
Phones: -94 dB, unweighted
Maximum LevelLine Output: +20 dBu
Line Input: +24 dBu
Mic Input: +24 dBu (with pad)
Phones: Max. 80 mw
Gain Trim RangeLine Output: 24 dB (-4 to +20), in 1 dB steps
Line Input: 118 dBu (-96 to +22), in 1 dB steps
Mic Input: 56 dB, in 1 dB steps
Phones: 128 dB
Compatible SoftwareCompatible Mac Software

The UltraLite AVB ships with standard Core Audio drivers for Mac OS X for compatibility with virtually all Core Audio-compatible apps, including:

MOTU Digital Performer
Avid Pro Tools (version 9 or later)
Apple Logic Pro
Apple Logic Express
Apple Garage Band
Apple SoundTrack Pro
Ableton Live
Propellerhead Record & Reason
Steinberg Cubase
Cockos Reaper
Native Instruments Kontakt
Waves stand-alone apps (and plug-ins, via compatible host)

Compatible Windows Software

The UltraLite AVB ships with standard ASIO and Wave drivers for Windows 7 and 8 for compatibility with virtually all ASIO- and Wave-compatible audio apps, including:

MOTU Digital Performer
Avid Pro Tools (version 9 or later)
Ableton Live
Cakewalk Sonar
Steinberg Cubase
Propellerhead Record & Reason
Image Line FL Studio
Sony Vegas Pro
Sony Sound Forge
Sony Acid
Cockos Reaper
Native Instruments Kontakt
Waves stand-alone apps (and plug-ins, via compatible host)
MOTU UltraLite AVB 18 x 18 USB Audio Interface
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