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MOTU 24Ao USB/AVB Ethernet Audio Interface

The MOTU 24Ao can be used as an audio interface, digital-to-analog converter, or standalone mixer - combining 24 channels of high-quality, balanced analog output with three banks of ADAT optical digital I/O for a total of 72 channels (24 inputs plus 48 outputs) in a single rack space!

With industry-leading dynamic range and on-board, large console style mixing, the 24Ao delivers audio class compliant connectivity through USB 2.0 that is USB 3.0 and iOS compatible. Analog outputs are supplied on convenient multi-channel D-sub and Phoenix connectors for studio and industrial installations.


      Powerful DSP delivers large console style mixing with 48 channels, 12 stereo busses, and 32-bit floating point effects processing, including modeled analog EQ, vintage compression and classic reverb. The unit's extensive routing grid patches ins to outs, or splits inputs to multiple destinations. Use the 24Ao as a stand-alone mixer and control everything from the 24Ao's innovative web app running on your iPad™, iPhone™, tablet, smart phone, and laptop. Connect a second MOTU AVB interface (24Ai, 1248, 8M or 16A) with a simple Ethernet cable. Add more I/O with the MOTU AVB Switch (sold separately). Build an AVB audio network with multiple switches and sub-millisecond latency, even over long cable runs. Stream hundreds of channels among devices and computers on the network. From initial tracking to final mastering, the 24Ao delivers superb sound quality, state-of-the-art operation, and reliable performance. 

      Main Features:

      The 24Ao provides flexible connectivity to your computer with class compliant, high-speed USB 2.0 and delivers 24 channels of pristine balanced analog output, combined with 48 channels of digital I/O, for a total of 72 audio channels. 

      As a computer interface, optical-to-analog expander, or stand-alone mixer, the 24Ao provides 24 analog outputs and three 8-channel banks of ADAT optical digital input and output. Send line level outputs to a variety of analog destinations, including mixing desk inputs, studio monitors, surround speakers, or line arrays. Route and process any outputs using the professional on-board digital mixer — with no latency and no processor strain on your computer. Apply hardware DSP-driven effects processing to inputs, outputs, and busses independent of your host computer. Add Classic Reverb™ with lengths up to 60 seconds. Further sculpt your sound with 4-band parametric EQ, modeled vintage compression, and gating. 

      Add more MOTU interfaces as your needs grow, connected to a state-of-the-art audio network using standard AVB Ethernet switches and CAT-5e cabling, with near-zero network latency, even over long cable runs (100 meters point to point). Route hundreds of audio channels among multiple devices and computers on the network. 

      Control all DSP-based mixing and effects, device settings, and network audio routing using your favorite web browser running on your laptop, tablet and smart phone connected wirelessly or locally to the 24Ao audio network. 

      From studio to stage, the 24Ao delivers superb sound quality, state-of-the-art operation, and reliable performance.


      Sample rates

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

      24Ai analog

      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

      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)

      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


      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 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 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 (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
Need more info on the MOTU 24Ao? Click HERE for the manufacturer's website >>>