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USB
MOTU 24AO
$1,354

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AVB-equipped Network/USB 2.0 Audio Interface with 24 Analog Outputs on DB-25/Phoenix Connectors, 24-channels of ADAT Optical I/O, and Word Clock I/O
9335
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Description

Whether you're recording in the studio, taking direct output feeds off of an analog mixer, or capturing audio onstage, the MOTU 24Ai USB 2.0 audio interface gives you the high channel count and low latency you need. Like the rest of MOTU's popular AVB-equipped audio interfaces, the 24Ai lets you send a ton of audio across a standard network.

The internal mixer also includes all kinds of DSP processing, summing, and routing options too, and between its high-speed USB 2.0 connectivity and additional 24 channels of ADAT optical I/O, you can easily expand the capabilities of your MOTU 24Ai.

Tons of high-quality connections packed into a single-rackspace audio interface

It doesn't matter if you prefer DB-25 D-subs or Phoenix plugs, the MOTU 24Ai makes connecting up to 24 analog line channels a piece of cake. With so many high-quality inputs packed into a single rack space, the A24i is idea for taking direct outputs off of an analog mixing console or capturing signal onstage in a live environment. What's more, there are three pairs of ADAT optical ports onboard, offering an additional 24 channels of digital I/O via USB 2.0 or AVB network.

DSP-fueled mixer onboard gives you the added benefit of EQ, compression, and effects

The MOTU 24Ai's onboard DSP mixer offers a number of advantages you'll find useful in a variety of settings. For starters, this digital mixer supports up to 48 inputs and 12 stereo busses, allowing you to set up extremely complex routing schemes completely independent of your computer. In fact, if you connect a wireless router to your 24Ai, you can access all of its internal mixing functions, including effects and processing, via an app on your iOS device, turning this powerful audio interface into a fully capable standalone mixer. Speaking of onboard processing and effects, whether you're in the studio or onstage with your 24Ai, you'll find a ton of uses for its DSP EQ, compression, gate, and reverb.

Expand your production system with additional AVB networkable audio interfaces

Another extremely cool use of the 24Ai's Ethernet connection is the ability to link more MOTU AVB equipped audio interfaces to it. You can do this in one of two ways: directly via a simple Ethernet cable or as part of an audio network via one or more MOTU AVB Switch. If you go with just a single Ethernet cable, you can easily link a second 24Ai or other AVB ready device directly to your first one. With MOTU AVB Switches, you can create an audio network of up to five units, potentially linking hundreds of channels of I/O across multiple rooms. And since it's all over standard Cat-5e Ethernet cable, latency or cable runs aren't any kind of issue.

A versatile 48-in/24-out network audio interface for studio and live sound applications
Choose from ultra-low-latency AVB ethernet or high-speed USB 2.0 computer connectivity
24 high-quality analog inputs are available on both DB-25 D-sub connectors and Phoenix connectors
24-channels of ADAT optical digital I/O lets you expand your system with additional gear
Onboard 32-bit floating point DSP-driven digital mixer with EQ, dynamics, and effects provides latency-free routing
Hook up a wireless router and take complete control of the onboard mixer from your iOS device - no computer needed!
AVB audio networking lets you easily expand your system and additional AVB equipped audio interfaces
Create an AVB network via optional AVB Switches for support for up to five compatible interfaces

Technical Specifications

 

Sample rates 44.1, 48, 88.2, 96, 176.4, 192 kHz
24Ai analog
inputs
24 channels (balanced/unbalanced)
3x DB-25 D-sub and 6x 12-pin Phoenix
Max level: +24 dBu (digitally adjustable -96 to +22)
24Ao analog outputs 24 channels (balanced, DC coupled)
3x DB-25 D-sub and 6x 12-pin Phoenix
Max level: +20 dBu (digitally adjustable -24 to 0 dB)
Digital I/O 3 banks (24 ch) of ADAT optical at 1x sample rates
3 banks (12 ch) of SMUX optical at 2x sample rates
Stereo TOSLink (optical S/PDIF) on Bank A (optional)
Total I/O 24 analog + 48 digital (72 total) at 1x rates
24 analog + 24 digital (48 total) at 2x rates
24 analog + 0 digital (24 total) at 4x rates
Computer I/O 1 x USB 2.0 audio class compliant
      USB 3.0 and iOS compatible
1 x AVB Ethernet (requires OS X Yosemite)
Computer I/O channels 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 computer speed
Sync I/O 1 x word clock in
1 x word clock out
Front panel
5 x switches • menu navigation
324 x 24 pixel LCD for level meters / menu nav
1 x AC power switch
Power International 100-240V autoswitching supply
50-60 Hz • 0.5A max

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 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 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 MOTU AVB interface by wire or Wi-Fi.

Included Software

  • MOTU AVB Discovery App for Mac & Windows (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 and Windows (separate download)

Operating Systems

  • For computer audio I/O: Mac OS X 10.8 or later; Windows 7 or later
  • For web app control: Mac, Windows, Linux, iOS, Android

Analog I/O Specifications

 
Connector type
Dynamic range
(A-weighted)
THD+N
(unweighted)
Max
level
Trim range
(in 1 dB steps)
24Ao analog output DB-25 D-sub or 12-pin phoenix 123 dB -110 dB +20 dBu 24 dB (-24 to 0 dB)
24Ai analog input DB-25 D-sub or 12-pin phoenix 110 dB -102 dB +24 dBu 118 dB (-96 to +22 dB)

Compatible Mac Software

The 24Ai and 24Ao ship 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 24Ai and 24Ao ship with standard ASIO and Wave drivers for Windows 7, 8 and 10 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)

24Ai and 24Ao Feature Summary

Superb audio quality

Employs the same industry-recognized analog design as MOTU's groundbreaking 1248, 8M and 16A audio interfaces.

72 simultaneous audio channels

24 high-quality, balanced analog inputs (24Ai) or outputs (24Ao) on three banks of multi-channel connectors (D-sub and Phoenix), plus three banks of 8-channel ADAT optical for 24 analog channels and 48 digital channels.

Universal connectivity

Connects to a computer with 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

DSP-driven mixing and effects 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

Add a 2nd MOTU AVB interface (24Ai, 24Ao, 1248, 8M or 16A) with a simple Cat-5e ethernet cable. Connect up to five MOTU interfaces using a MOTU AVB Switch (sold separately).

AVB audio networking

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.

Matrix routing and splitting

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

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 24Ai or 24Ao with a standard Ethernet cable and control powerful mixing and DSP effects from your smart phone or tablet, without a computer. Great for live sound mixing.

ADAT digital I/O

Use the 24Ai or 24Ao as a 24-channel optical expander for other gear. 24 channels at 44.1/48 kHz or 12 channels at 88.2/96 kHz.

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.

AudioDesk

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

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