Thunderboltâ„¢/USB2/AVB Ethernet audio interface with 112 channels of digital I/O and MADI
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112 simultaneous digital audio channels

24 channels of AES/EBU, plus 24 channels of ADAT optical, plus 64 channels of MADI, for 112 total channels digital audio I/O. All input and output channels can be active simultaneously.

64 channels of MADI

Serves as a 64-channel MADI interface, router and converter with near-zero latency and flexible routing and splitting to/from the AVB network, computer, AES/EBU and optical. Supports 56-channel mode, 32-channel mode and 1x/2x/4x clock modes.

24 channels of AES/EBU and ADAT optical up to 96 kHz

Three 8-channel (D-sub) banks of AES/EBU at sample rates up to 96 kHz. Three 8-channel banks of ADAT optical at rates up to 48 kHz; six banks of ADAT at 2x sample rates (24 channels).

Flexible routing, splitting and format conversion

Send any input to any output, or multiple outputs. Includes routing to and from the computer, plus any devices on the AVB network. Convert any format to any other.

256 channels of network audio I/O for your host computer

Record and monitor up to 128 networked audio channels in and out, simultaneously, through the Thunderbolt connection to a host computer.

Universal connectivity

Connects to a computer with Thunderbolt, standard AVB Ethernet or audio class compliant high-speed USB 2.0 (compatible with USB 3.0 and iOS). Discovery app and web app software works alongside any host audio software.

On-board DSP with mixing and effects

Flexible 48-input digital mixer modeled after large format mixing consoles, with 12 stereo busses and DSP effects, including reverb, 4-band EQ, gate, and compression.

32-bit floating point processing

The 112D's mixing and effects DSP engine delivers virtually unlimited headroom and the utmost in sound quality.

Modeled vintage effects processing

Classic reverb. Compression modeled after the legendary LA-2A compressor. EQ modeled after British analog console EQs.

System expansion and audio networking

Add a 2nd MOTU AVB interface (1248, 8M, 16A, etc.) with a simple Cat-5e ethernet cable. Connect up to five MOTU interfaces using a MOTU AVB Switch (sold separately). Build a network with multiple interfaces and computers using standard AVB switches and network cabling, with ultra-low network latency, even over long cable runs (100 meters point to point). Stream hundreds of audio channels among devices and computers on the network.

256 channels of network audio I/O for your host computer

Record and monitor up to 128 networked audio channels in and out, simultaneously, through the Thunderbolt connection to a host computer.

Web app control

Control on-board DSP, mixing, device settings, and network audio routing from web app software running in your favorite browser on a laptop, tablet or smart phone connected by wire or Wi-Fi to your local area network.

Stand-alone mixing with wireless control

Connect an Apple Airport™ or other Wi-Fi router directly to the 112D with a standard Ethernet cable and control the 112D's powerful mixing and DSP effects from your smart phone or tablet, without a computer. Great for live sound mixing.

Comprehensive metering

The large backlit 324 x 24 LCD lets you view all signal activity at a glance with detailed metering for all analog and digital I/O. Access hardware settings from a simple and convenient menu.


Includes AudioDesk workstation software for Mac and Windows with 24-bit recording, sample-accurate editing and 32-bit mixing and mastering.

Technical Specifications

Sample rates       44.1,48, 88.2, 96, 176.4, 192 kHz

Digital I/O           3x8-ch banks (24 ch) of ADAT optical at 1x sample rates

6x 4-ch banks (24 ch) of SMUX optical at 2x sample rates

3x 8-ch banks (24 ch) of AES/EBU on 25-pin D-sub

1x BNC MADI in/out (64/56 ch @ 1x, 32 @ 2x, 16 @ 4x)

Total I/O              112inputs and 112 outputs (224 total) at 1x sample rates

80 inputs and 80 outputs (160 total) at 2x sample rates

16 inputs and 16 outputs (32 total) at 4x sample rates

Computer I/O     1 xThunderbolt (compatible with 1 and 2)

1 x USB 2.0 audio class compliant

      USB 3.0 and iOScompatible

1 x AVB Ethernet (requires OS X Yosemite)

Computer I/O channels   Thunderbolt(44.1 to 96 kHz): 128 in/out

Thunderbolt (176.4 to 192 kHz): 64 in/out

USB 2.0 (44.1 to 48 kHz): 64 in/out

USB 2.0 (88.2 to 96 kHz): 32 in/out

USB 2.0 (176.4 to 192 kHz): 24 in/out

AVB Ethernet: 16 to 128 in/out, depending on

      host computerspeed

Sync I/O               1x word clock in

1 x word clock out / thru

Network I/O       1 xRJ45 AVB/TSN Ethernet (1 Gbps)

AVB streams

(8 channels per stream)   16in / 16 out @ 44.1 or 48 kHz

16 in / 16 out @ 88.2 or 96 kHz

8 in / 8 out @ 176.4 or 192 kHz

Front panel         5 xswitches menu navigation

324 x 24 pixel LCD for level meters / menu nav

1 x AC power switch

Power   International100-240V autoswitching supply

50-60 Hz 0.5A max


and weight          (widthx depth x height, enclosure only)

19 x 7 x 1.75 inches

48.3 x 17.75 x 4.5 cm

4.3 lbs / 1.95 kg

with rack brackets removed:

17.25 inches (43.8 cm) wide

4.2 lbs / 1.90 kg

Mac System Requirements

1 GHz Intel-based Mac or faster

2 GB RAM; 4 GB or more recommended

Mac OS X version 10.8 or later

Available Thunderbolt, USB 2.0 or AVB Ethernet port*

A large hard drive (at least 500 GB for recording)

*AVB Ethernet audio interface operation requires OS XYosemite

Windows System Requirements

1 GHz Pentium-based PC compatible or faster

2 GB RAM; 4 GB or more recommended

Windows 7, 8 or 10

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 Support

Any web client platform: Mac, Windows, Linux, iOS, Android

Any web browser: Safari, Firefox, Chrome, Opera, Explorer,etc.

Web client must be connected to the same network as the MOTUAVB interface by wire or Wi-Fi.

Included Software

Thunderbolt and USB 2.0 drivers

MOTU Discovery App for Mac & PC (finds connected MOTUinterfaces)

MOTU Discovery App for iOS (available from Apple App Store)

MOTU Pro Audio Control web app (served from the hardwareitself)

MOTU Audio Tools (FFT, oscilloscope, X-Y plot, phaseanalyzer)

AudioDesk 4.0 for Mac & PC (separate download)

Operating Systems

For computer audio I/O: Mac OS X 10.8 or later; Windows 7 orlater

For web app control: Mac, Windows, Linux, iOS, Android

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