User Manual

ABOUT YOUR MOTU AVB AUDIO INTERFACE
24
8M
50 simultaneous audio channels
16A
64 simultaneous audio channels
Universal connectivity
The 24Ai and 24Ao can connect to a computer with
high-speed USB 2.0, which is compatible with USB
3.0). They are USB audio class-compliant, which
means that they are iPad compatible (with a
camera connection kit) and do not require driver
installation for USB connection to a computer.
Alternately, the 24Ai and 24Ao can be connected to
the Ethernet port on a recent-generation Mac (any
Mac with Thunderbolt on it) running Mac OS X
Yosemite (10.10) or later for audio interface
operation through AVB Ethernet.
On-board DSP with mixing and effects
Each interface is equipped with a powerful DSP
engine that drives both an extensive routing matrix
and a 48-input digital mixer with 12 stereo busses
and effects. The mixer offers familiar operation
modeled after large format mixing consoles.
32-bit floating point processing
All of the mixing and effects processing in the DSP
engine is handled with 32-bit floating point
calculations, to maintain and deliver virtually
unlimited headroom and the utmost in sound
quality.
Modeled vintage effects processing
Effects include “classic” reverb, compression
modeled after the legendary Teletronix LA-2A
compressor, and 4-band EQ modeled after British
analog console EQs.
AVB system expansion and audio networking
AV B stands for the IEEE 802.1 Audio Video
Bridging
Ethernet standard for high-bandwidth,
low-latency audio streaming over Ethernet. The
AVB Ethernet network port on each MOTU
interface lets you add a second AVB-equipped
MOTU interface using any standard CAT-5e
Ethernet cable. You can network up to five MOTU
interfaces together using a MOTU AVB Switch™
(sold separately), and then run them as a stand-
alone network or as an extended bank of I/Os for
your computer-based production system (or
both). You can even connect multiple computers,
each with full access to all devices on the network
(including the other computers).
With additional standard AVB switches (from
MOTU or other brands) and standard Ethernet
cabling, you can build an extensive AVB audio
network. The entire network operates with near-
zero network latency, even over very long cable
runs. MOTU’s AVB implementation allows you to
stream hundreds of audio channels among devices
and computers on the network with guaranteed
Quality of Service (QoS), prioritizing audio
streams over less important traffic.
Matrix routing and multing
Each MOTU interface provides completely flexible
matrix-style audio routing and multing. You can
route any analog or digital input, computer
Connection Input Output
Quarter-inch analog on bal/unbal TRS - 8
Mic/guitar inputs on combo XLR/TRS 8 -
Headphone output - stereo
ADAT optical digital (at 44.1 or 48 kHz) 16 16
Total 24 26
Connection Input Output
Quarter-inch analog on bal/unbal TRS 16 16
ADAT optical digital (at 44.1 or 48 kHz) 16 16
Total 32 32