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
APPENDIX B: AUDIO SPECIFICATIONS
86
S/PDIF
Includes Sample Rate Conversion (SRC) on input
Connector Type RCA
Termination 75 ohm I/O
Lock Range 44.1k/48k, +/- 0.5% 1x, 2x
Input Voltage Range 0.2 Vpp/1Vpp With termination
Output Drive 0.5.0 Vpp With termination DC coupled
THD+N In (SRC) -122 dB Unweighted, With SRC
Specification IEC-958/60968-3
Phones
Connector Type 1/4” Female, TRS Stereo Tip Left, Ring Right
Dynamic Range 108 dB A-Weighted
THD+N -100 dB Unweighted
Frequency Response +0 -0.15 dB, 22 Hz/20 kHz Ref. 1 kHz
Drive Max. 80 mw 16/32/55 ohms
Trim Range 128 dB 0 to -128 dB (muted) in 1 dB steps
Word Clock In/Out/Thru
Specification AES-11 2009 Annex B
Connector Type BNC
Termination 75 ohm (in/out) THRU is unterminated
Lock Range 44.1 kHz / 48kHz, +- 0.5% x1/x2/x4
Input 1 vpp to 3 v p-p (with termination) AC coupled
Output 5.0 vpp, (2.5 v p-p terminated) DC coupled
Jitter complies with AES3-4-2009 < 0.025 UI
Power Supply
Connector Type IEC 3-conductor receptacle For AC mains connection
Configuration Internal, Universal
Power Input 100 V to 240 V, 50 Hz or 60 Hz
Power Usage 35 watts