User Manual
Table Of Contents
- Title Page
- Quick Start Guide
- 1248 Front Panel
- 1248 Rear Panel
- 8M Front Panel
- 8M Rear Panel
- 16A Rear Panel
- 16A Front Panel
- MOTU AVB Switch
- MOTU AVB Control Web App
- Overview
- It’s not on your hard drive
- Use your favorite web browser
- Control from multiple devices
- Run the installer, get the app
- Make hardware and network connections
- Launching the web app
- Device tab
- Device tab (continued)
- Routing tab
- Mixing tab
- Aux Mixing tab
- Mixer input channel strips
- Main Mix and Monitor channel strips
- Aux bus channel strips
- Group and Reverb channel strips
- 1 About Your MOTU AVB Audio Interface
- State-of-the-art A/D and D/A conversion
- Complementary I/O configurations
- 1248
- 8M
- 16A
- Network I/O
- Universal connectivity
- On-board DSP with mixing and effects
- 32-bit floating point processing
- Modeled vintage effects processing
- AVB system expansion and audio networking
- Matrix routing and multing
- 256 channels of network audio I/O for your host computer
- Web app control
- Stand-alone mixing with wireless control
- ADAT digital I/O
- S/PDIF digital I/O with SRC
- Word clock
- Comprehensive metering
- Headphone outputs
- Precision Digital Trim™
- Rack mount or desktop operation
- AudioDesk
- 2 Packing List and System Requirements
- 3 Software Installation
- 4 Hardware Installation
- Overview
- Rack installation and heat
- Thunderbolt audio interface setup
- USB audio interface setup
- Setup for two interfaces
- Setup for three to five interfaces
- Setup for a multi-switch network
- Setup for multiple Thunderbolt and USB interfaces
- Setup for web app control
- Audio connections
- A typical 1248 setup
- A typical 8M setup
- A typical 16A setup
- Synchronization
- Syncing S/PDIF devices
- Syncing word clock devices
- Syncing an AVB network
- 5 Presets
- 6 The Front Panel LCD
- 7 Working with Host Audio Software
- Overview
- Preparation
- Run the web app
- Sample rate
- Clock Mode
- Enabling and disabling input/output banks
- Specifying the number of computer channels
- Making inputs and outputs available to your host software
- Configuration presets
- Naming computer input and output channels
- Streaming computer audio to and from the onboard mixer
- Working with AVB network streams
- Mirroring computer channels to multiple outputs
- Combining multiple inputs to one output
- Routing grid tutorials
- Choosing the MOTU Audio driver
- Reducing monitoring latency
- Working with on-board mixing and effects
- Synchronization
- 8 Mixer Effects
- 9 Networking
- A Troubleshooting
- B Audio Specifications
- C Mixer Schematics
- D Updating Firmware
- E OSC Support
- Index
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HARDWARE INSTALLATION
39
SETUP FOR MULTIPLE THUNDERBOLT AND
USB INTERFACES
It is possible to connect multiple MOTU interfaces
directly to your host computer through multiple
Thunderbolt and USB ports, as discussed in the
following sections. However, there are several
disadvantages to doing it this way:
■ The audio interfaces will not be clocked to one
another and may be susceptible to drift, unless you
use external word clock connections. When using
the AVB network connections shown on pages
36-38, the interfaces are very tightly synchronized
with each other through their network connections
(measured in pico seconds).
■ You will not be able to route audio directly from
one audio interface to another. When using the
AVB network connections shown on pages 36-38,
you can route audio streams (hundreds at a time)
directly among interfaces with near-zero latency.
Connecting multiple interfaces using
Thunderbolt
If your host computer has two or more
Thunderbolt ports, you can connect one interface
to each port, either directly or at the end of a
Thunderbolt daisy chain (on either port or both
ports).
Connecting multiple interfaces using
Thunderbolt and USB
Another way to operate multiple interfaces on the
same host computer is to connect the first interface
to a Thunderbolt port and the second to a USB 2.0
(or 3.0) port.
Multiple interfaces and USB
When connected through USB, your MOTU
interface operates as a USB 2.0 device, even when
connected to a USB 3.0 port. USB 2.0 provides
enough bus speed for several USB 2.0 devices, but
due to your MOTU interface’s high-performance
requirements for real-time operation and low
latency timing, we recommend the following:
■ Do not connect more than two units to your
computer’s USB 2.0 or 3.0 port(s).
■ When two units are connected with USB 2.0,
don’t connect other USB 2.0 or 3. 0 devices, such as
external hard drives.
■ For best results, establish clock synchronization
with other interfaces connected to the same
computer. You can use word clock, S/PDIF, ADAT,
or AVB to achieve clock synchronization.
Mixing and matching audio interfaces
In the scenarios just discussed for connecting
multiple interfaces, you can mix and match the
interface with other MOTU audio interface
models. For example, you could connect a 1248
through Thunderbolt and another MOTU audio
interface, such as a 16A, through USB 2.0.