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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APPENDIX
85
B Audio Specifications
1248
Line Out
Connector Type 1/4” Female, TRS Balanced, tip hot
Output Impedance 100 ohm Per leg
Dynamic Range 123 dB A-weighted
THD+N -110 dB (0.0003%) -1 dBFS, Unweighted, 1 kHz
Frequency Response +0, -0.1 dB, 20 Hz/20 kHz Ref. 1 kHz
Max Level Out +20 dBu
Trim Range 24 dB -4 dBu to +20 dBu in 1 dB steps
Guitar In
Connector Type 1/4” Female, TS Unbalanced
Impedance 1 megohm
Dynamic Range 103 dB A-weighted
THD+N -93 dB -1 dBFS, Unweighted
Frequency Response +0.05, -0.1 dB Ref. 1 kHz
Max Level In -2 dBu with trim down, +10 dBu with trim up 0.615v to 2.45v
Trim Range 12dB -2 dBu to +10 dBu in 1 dB steps
Line In
Connector Type 1/4” Female, TRS Balanced/unbalanced, Tip hot
Specification Complies with EBU-R68 / SMPTE RP-155
Impedance Load 10 k ohm
Dynamic Range 117 dB A-weighted
THD+N -110 dB (0.0003%) -1 dBFS, Unweighted
Frequency Response +0, -0.1 dB, 20 Hz/20 kHz Ref. 1 kHz
Max Level In +24 dBu
Trim Range 22 dB +2 dBu to +24 dBu in 1 dB steps
MIC In
Connector Type XLR Male, Balanced Pin 2 hot
Impedance Load 3k ohm, 4.5k with Pad
Pad -20 dB, Switchable per channel
Phantom Power +48v, Switchable per channel DIN 45596 / IEC 61938-P48
EIN -128 dBu, 20 – 20 kHz Rs = 150 ohm
Dynamic Range 117 dB A-weighted
THD+N -110 dB (0.0003%) -1 dBFS, Unweighted, 1 kHz
Frequency Response +0, -0.1 dB, 20 Hz/20 kHz Ref. 1 kHz
Max Level In +24 dBu With pad
Trim Range 63 dB 0 to +63 dB in 1dB steps