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 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 4.0
Includes AudioDesk workstation software with 24-bit recording, sample-accurate editing and 32-bit mixing and mastering.
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 |