MOTU 828es User Manual
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MOTU 828es User Manual

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828es
™
User Guide
1280 Massachusetts Avenue
Cambridge, MA 02138
Business voice: (617) 576-2760
Business fax: (617) 576-3609
Title Page
Web site: www.motu.com
Tech support: www.motu.com/support

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  • Page 1 828es ™ User Guide 1280 Massachusetts Avenue Cambridge, MA 02138 Business voice: (617) 576-2760 Business fax: (617) 576-3609 Title Page Web site: www.motu.com Tech support: www.motu.com/support...
  • Page 2 The MOTU product is equipped with a three-conductor cord and grounding type plug which has a grounding prong, approved by Underwriters' Laboratories and the Canadian Standards Association. This plug requires a mating three-conductor grounded type outlet as shown in Figure A below. If the outlet you are planning to use for the MOTU product is of the two prong type, DO NOT REMOVE OR ALTER THE GROUNDING PRONG IN ANY MANNER.

  • Page 3: Table Of Contents

    Contents Part 1: Getting Started Quick Start Guide 828es Front Panel 828es Rear Panel MOTU Pro Audio Control Web App About the 828es Packing List and System Requirements Software Installation Hardware Installation Part 2: Using the 828es Presets Front Panel Operation...
  • Page 4 That license agreement is a contract, and clicking “Accept” binds you and MOTU to all This warranty does not apply if the equipment has been damaged by accident, abuse, its terms and conditions.

  • Page 5: Part 1: Getting Started

    Part1 Getting Started...

  • Page 7: Quick Start Guide

    ■ discovery from any modern browser, see http://www.motu.com/proaudio chapter 11, “Networking” (page 95). 2 (Optional) For quick access to the 828es from your iPad or iPhone, download the MOTU Discovery app from the Apple App Store. ☛ Your iPhone and iPad must be on the same Wi-Fi network as your computer.

  • Page 9: 828Es Front Panel

    2. Individual MIC INPUT preamp gain, switchable 48V phantom power, and optional -20 dB pad switches for 6. The 828es dual color LCDs display metering, device settings control. As you turn the knob, the LCD provides visual feedback with a volume meter.

  • Page 10: 828Es Rear Panel

    12. Connect the 828es to the computer here via either tional power supply. Connect the 828es MIDI OUT port to the MIDI IN port on Audio Control web app software. From the factory, Thunderbolt or USB, using a standard Thunderbolt or the other device.

  • Page 11: Motu Pro Audio Control Web App

    MOTU interfaces networked together, MAKE HARDWARE AND NETWORK such as the 828es, 1248 and 8M, you can control CONNECTIONS them all. If you are working with a large network Connect your 828es to your computer or laptop of many MOTU interfaces, you can access any with a USB or Thunderbolt cable.
  • Page 12 DEVICE TAB Windows only 1. If you have two or more MOTU inter- 8. Choose the desired sample rate. connection to your computer. See Click the Become Clock Master button faces, the Devices list lets you choose Make sure your host audio software Appendix D, “Updating Firmware”...
  • Page 13 See “Optical I/O” on page 45. bandwidth, low-latency audio devices to the 828es. streaming over Ethernet. If your 25. The digital mixer in the 828es MOTU interface is connected to a 23. In the Input/Output Banks sections, supports up to 48 channels at 44.1...
  • Page 14 See “Talkback” on page 60. on page 48 and “LTC-to-MTC conver- password, you can clear it in the 27. Your MOTU interface can resolve to 34. Enable the Foot Switch input here. In sion” on page 69. Settings menu in the front panel LCD...
  • Page 15 6. Outputs are listed in rows on the left. example, 8 channels of audio from a example, it might be convenient to MOTU 1248 interface are available. collapse banks that you are not 23. Indicate the outputs designated for The first four are being routed to the using at the moment.

  • Page 16: Mixing Tab

    13. The Main Mix bus is the master fader 21. Channel faders. the 48-channel mixer in the 828es, and manage entire mixer presets. for the entire mixer. You can add EQ which provides a main mix bus, monitor 22.

  • Page 17: Aux Mixing Tab

    4. Click the aux bus or group you wish 10. Solo and mute for the aux bus 14. Show and hide mix groups and the access to the 828es mix buses (aux to view in the window. In this master fader. The mute buttons for reverb bus here.

  • Page 18: Mixer Input Channel Strips

    MIXER INPUT CHANNEL STRIPS To access a mixer input channel strip, go to 15. The thumbnail Compressor Graph the Mixing tab (page 16), reveal the side bar provides a graphic representation of the (item #3 on page 16), and show the input compressor, when enabled.

  • Page 19: Main Mix And Monitor Channel Strips

    Main Mix bus is on page 18). assigned to the Main Outs on the 828es, you’ll see trim settings for the 12. When Follow Solo is enabled, the outputs. This item is grayed out if Monitor bus switches to the solo bus there are no hardware settings for when any channel is soloed.

  • Page 20: Aux Bus Channel Strips

    AUX BUS CHANNEL STRIPS Aux buses can be used to create sub-mixes. An aux bus can be assigned to any output in the Routing grid (page 15). To access an Aux bus channel strip, go to the Mixing tab (page 16), reveal the side bar (item #3 on page 16), and then show the aux buses you want in the Mixer Outputs section (29).

  • Page 21: Group And Reverb Channel Strips

    GROUP AND REVERB CHANNEL STRIPS Group busses can be used to create a mix sub- group, which is a set of inputs you wish to control together as a group. Groups differ from aux busses in that they have aux sends, a reverb send, as well as a main mix send.
  • Page 22 M O T U P R O A U D I O C O N T R O L W E B A P P...

  • Page 23: About The 828Es

    Other MOTU interfaces The 828es is part of a larger family of audio The 828es can operate as an audio interface for a interfaces that offer complementary I/O configu- studio workstation (DAW), as a standalone mixer, rations.
  • Page 24 4-band EQ modeled after British digital form. The resulting output from the analog console EQs. outboard gear can be fed back into the 828es via one of the eight TRS analog inputs on the rear AVB/TSN system expansion and audio...
  • Page 25 DSP-driven phase-lock engine with sophisticated filtering that provides fast lockup Stand-alone mixing with wireless control If you connect the 828es to an Apple Airport or times and sub-frame accuracy. other Wi-Fi router with a standard Ethernet cable, Word clock...
  • Page 26 Mac and Windows that is The full-color dual-LCDs display all signal activity available as a free download for you as an 828es at a glance with vivid, detailed metering for all I/O. owner. Visit motu.com/download to obtain your You can access many hardware settings directly copy.

  • Page 27: Packing List And System Requirements

    CHAPTER System Requirements PACKING LIST PLEASE REGISTER TODAY! the 828es ships with the items listed below. If any Please register the 828es today. There are two ways of these items are not present in the box when you to register.
  • Page 28 P A C K I N G L I S T A N D S Y S T E M R E Q U I R E M E N T S...

  • Page 29: Software Installation

    MOTU Discovery app ........31 network port, see “MOTU Pro Audio Control...
  • Page 30 ☛ Check motu.com/support for the latest Figure 4-1: Choosing the MOTU Pro Audio ASIO driver in Cubase. information regarding PC Thunderbolt compati- bility, as some PC products are not yet qualified WDM / Wave driver support...
  • Page 31 Programs> MOTU. Use this shortcut to access the Figure 4-2: Under Windows, access the ‘Host Buffer Size’ and ‘Host MOTU Pro Audio Control web app directly in Safety Offset’ settings in the web app Device tab for your MOTU your favorite web browser. interface.
  • Page 32 S O F T W A R E I N S T A L L A T I O N...

  • Page 33: Hardware Installation

    Computer or iOS device A typical 828es setup ........43 Audio connections .

  • Page 34: Avb Ethernet Audio Interface Setup

    AVB ETHERNET AUDIO INTERFACE SETUP SETUP FOR TWO INTERFACES Use this setup if you want to use the 828es as an AVB Ethernet audio interface for a recent- generation Mac (i.e. any Mac with a Thunderbolt port on it). OS X El Capitan (10.11) or later is required for AVB audio I/O.

  • Page 35: Setup For Three To Five Interfaces

    See chapter 11, “Networking” (page 95). ■ Use standard CAT-5e Ethernet network cables ■ to connect the interfaces to the MOTU AVB Switch using their NETWORK ports. Use the five AVB NETWORK ports on the ■ switch (not the Ethernet port).

  • Page 36: Setup For A Multi-Switch Network

    C below are chained properly, but don’t employs multiple AVB switches. AVB Ethernet is connect C back to A. Alternately, you could an industry standard, so you can use MOTU AVB connect both Switches B and C to Switch A. Switches or 3rd-party AVB switches.

  • Page 37: Setup For Multiple Interfaces

    (which is a built-in switch). The Mac If you have other MOTU interfaces with can see both 828es and S3 for audio I/O. For best Thunderbolt connectivity (1248, 8M, 16A, 112D, results in this scenario, be sure to use OS X 10.11 624 or 8A) and your host computer has two or (El Capitan) or later.

  • Page 38: Setup For Web App Control

    Web app control through standard Ethernet The 828es can also be controlled by the web app Web app control can be set up independently of running on any device that has a standard...
  • Page 39 Figure 5-3: Web app control through a standard Ethernet hub or network (LAN). (Sold separately) Figure 5-5: Using the Ethernet port on the MOTU AVB Switch. H A R D W A R E I N S T A L L A T I O N...

  • Page 40: Setup For Avb Ethernet Audio Interface Operation

    Alternately, you can connect both the Mac and the interface to an AVB-compatible Ethernet switch. Web app setup Figure 5-7: Accessing the AVB settings for the Mac in the MOTU web app. To set up your MOTU device as an AVB Ethernet...
  • Page 41 48, 96 and 192 kHz sample rates. 5 For Playback from the Mac, go to the Device tab for your MOTU interface (the 1248 in the example below), and connect the input streams to the Mac’s output streams.
  • Page 42 For older Macs, we recommend one or two streams in each direction. Generally speaking, it is best to enable only as many streams as you need. Figure 5-12: Routing streams from your MOTU interface to the Mac. ☛ Leave Media Clock Input Stream set to None.

  • Page 43: A Typical 828Es Setup

    A TYPICAL 828ES SETUP 828es itself, controlled from your laptop, tablet, Here is a typical 828es setup. This rig can be and smart phone — or several devices simultane- operated with or without a separate mixer. All ously. mixing and effects processing can be done in the...

  • Page 44: Audio Connections

    Preamp gain ☛ Quarter-inch analog outputs are not The 828es preamps provides 63 dB of gain. Use the cross-coupled. Therefore, when connecting them front panel detented trim knobs to adjust gain as to an unbalanced input, use a TRS plug with the needed for each input.
  • Page 45 A-B Monitor Setup section in the S/PDIF web app Device tab (item #33 on page 14). For The 828es provides S/PDIF digital audio input and more information, see “Monitor controls” on output on the RCA jacks provided. Be sure to page 59.

  • Page 46: Synchronization

    Connect your MIDI device’s MIDI IN jack to the 828es rear panel 828es MIDI OUT jack (Connection A below). Conversely, connect the MIDI device’s MIDI OUT jack to the 828es MIDI IN jack (Connection B). MIDI MIDI MIDI Device MIDI...

  • Page 47: Syncing S/Pdif Devices

    — or phase-locked. Otherwise, you’ll into the 828es, choose S/PDIF as the clock source hear clicks, pops, and distortion in the audio — or (item #13 on page 12) to resolve the 828es to its perhaps no audio at all. S/PDIF input.

  • Page 48: Syncing Word Clock Devices

    Figure 5-20: Slaving another digital audio device to your MOTU device (an 828es in this example) via word clock. For the 828es clock source, choose any source besides word clock, as it is not advisable to chain When you choose the LTC clock mode setting, the word clock.

  • Page 49: Syncing An Avb Network

    There are several settings for the time code incoming time code, check this box. features in your MOTU interface. In the web app, go to the Device tab (page 14) and scroll to the Enable Jam Sync LTC Setup section, shown below.

  • Page 50: Syncing Multiple Avb Audio Interfaces Connected To A Mac

    2 In the device list (item #1 on page 12), choose may be in a situation where at least one MOTU the MOTU interface you wish to use as the clock device on the network must remain resolved to its master.

  • Page 51: Part 2: Using The 828Es

    Part2 Using the 828es...

  • Page 53: Presets

    Computer or common use cases. By loading the corresponding iOS device preset, the 828es routing tab and mixer will be reconfigured accordingly. You can visit the routing and Mixing tabs to inspect settings and adjust them as needed.

  • Page 54: Stand-Alone Mixer

    Figure 6-2: Using the 828es as a stand-alone mixer. This example demonstrates how you can control the mixer from several Wi-Fi devices. Audio inputs from stage, studio, etc. Figure 6-3: Using the 828es as an audio interface and mixer, simultane- ously. P R E S E T S...

  • Page 55: Live Recording With Monitor Mixing

    The setup is pretty much the same as for the “Interface + mixer” preset shown in Figure 6-3 on page 54, except that aux buses are routed to the 828es 24Ai analog outs (in consecutive pairs) for independent monitor mixes.

  • Page 56: Optical Converter

    Optical cable 828es Analog outputs Figure 6-5: Use the Optical converter preset to use the 828es as an optical-to-analog output expander. You can also use this preset to use the 828es as an analog-to-optical input expander. P R E S E T S...

  • Page 57: Dual Lcd Displays

    THREE LCD SCREEN SETS This chapter explains how to use the features on Push the METERS button (Figure 7-1) repeatedly the 828es front panel, including the two LCD to cycle among the three different LCD screen sets displays, menu navigation, A/B monitor controls shown below.

  • Page 58: Front Panel Operation

    The unique network address for the unit. Type this address into your web browser to shown in Figure 7-4 on page 58, see “Syncing to access the unit’s settings in the MOTU Pro Audio Control web app. SMPTE time code (LTC)” on page 48.

  • Page 59: Push-Button Knobs

    MIDI input to the MIDI output MONITOR CONTROLS when the 828es is disconnected from the The 828es front panel provides several controls for computer (no USB or Thunderbolt connection to the computer). the primary and secondary monitors in your...

  • Page 60: Talkback

    Device tab (item #20 on page 12). engineer. The 828es provides a built-in talkback mic on its front panel (item 3 on page 9). Mute and Mono...

  • Page 61: Net Id

    This allows you to use Figure 7-8: Mixer setup for the talkback mic. the 828es as a stand-alone mixer. You can make adjustments to any setting at any time from the Talkback settings web app running on a device that has a network The talkback settings (Figure 7-8) can be accessed connection to the 828es, as explained in “Setup for...
  • Page 62 F R O N T P A N E L O P E R A T I O N...
  • Page 63 Run the web app ........63 Choose the MOTU Pro Audio driver .....64 If you have devices connected to the optical ports, Reducing monitoring latency.

  • Page 64: Working With Host Audio Software

    Figure 8-1: Choosing the MOTU Pro Audio ASIO driver in Cubase. W O R K I N G W I T H H O S T A U D I O S O F T W A R E...
  • Page 65 The size of these buffers input to the mixer in the 828es. This is done by determine how much delay you hear when opening the Mix In group in the Outputs column...
  • Page 66 Figure 8-3: In Cubase or Nuendo, choose Devices menu > Device Setup. the load on your computer, freeing up bandwidth Select your interface (828es), then click the Control Panel button to access the window above and the Buffer Size setting.
  • Page 67 Figure 8-6: An example of routing computer channels (from host audio software) to the analog outputs on an 828es. Computer channels 1-2 are being split to three pairs of outputs: Phones 1-2, Phones 3-4 and Main L-R.
  • Page 68 Figure 8-7: An example of routing physical inputs on the 828es to computer channels (for host audio software). W O R K I N G W I T H H O S T A U D I O S O F T W A R E...
  • Page 69 (item 11 on page 15). These are output buses visit: from the 828es on-board mixer. To route one of www.motu.com/techsupport/technotes/avbrouting these mix buses to your host computer software, click the grid at the intersection of the mix column and desired computer channel row.
  • Page 70 MTC-compatible host software. If your host software requires that you specify the port, you should see your MOTU interface SMPTE Sync port as an available option in the list. In Digital Performer, this is the Sync to...

  • Page 71: High Pass Filter

    DSP mixer LA-2A optical compressor, which provides in the 828es. For basic mixer operation, see: vintage, musical automatic gain control Mixing tab..........16 Reverb .

  • Page 72: Mixer Effects

    GATE Enabling EQ Each band has an enable/disable button All input channel strips provide a Gate module. (Figure 9-3), allowing you to enable as few or as many bands as needed for the channel strip. Figure 9-2: The Gate module. Enable/disable The gate silences the signal when the input signal’s level drops below the Threshold.

  • Page 73: Compressor

    be flexible enough to cover a broad range of COMPRESSOR All mixer input channel strips provide a applications. By adjusting Gain and Bandwidth together, you can emulate the smooth and musical compressor module. character of classic analog EQ circuits, in which the Gain/Bandwidth dependency was dictated by the actual circuit design and electrical components used.
  • Page 74 the signal to 2 dB above the Threshold. When the Gain reduction meter The Gain reduction meter (Figure 9-5) displays input level goes above the threshold, the the current amount of attenuation applied by the attenuation is added gradually to reduce compressor, before the makeup gain stage.

  • Page 75: Leveler

    Compressor graph Automatic gain control using light The Compressor graph below the Compressor The AGC circuit of the LA-2A uses a vintage opto- section (Figure 9-5) provides a thumbnail visual coupler known by its model number T4. The T4 indication of the current compressor settings for contains an electroluminescent-panel (ELP) and the input channel.

  • Page 76: Reverb

    It is precisely this self-adjusting behavior that REVERB Use the enable/disable button (Figure 9-8) to turn makes optical compressors the tool of choice for smoothing out vocals, bass guitar and full- the reverb processor on or off. Since reverb uses program mixes without destroying perceived considerable DSP resources, it is best to leave it off when you are not using it.
  • Page 77 first reflections return to the listener. Predelay is useful for adding clarity, as it delays these reflections, before the onset of full reverberation. For example, with pre-delay added to vocals, the reflections won’t start until after the initial sound of a word has been sung. Spread Spread controls stereo imaging.
  • Page 78 M I X E R E F F E C T S...

  • Page 79: Motu Audio Tools

    Phase Analysis......... .90 Figure 10-1: The MOTU Audio Tools window with the FFT and Spectrogram Analysis .

  • Page 80: Analysis Menu

    Left Input and Right Input menus (Figure 10-1). These menus display the To FFT AND SPECTROGRAM DISPLAY Computer channels configured in the MOTU Pro The FFT analysis pane displays a real-time Fast Audio Control web app. The number of channels...
  • Page 81 View controls Axes display The Axes control (Figure 10-5) sets the opacity of You can show and hide the FFT display and the grid displayed in the graph, from 100% (fully spectrogram as desired using the View controls visible) down to 0% (fully hidden). (Figure 10-5).

  • Page 82: Oscilloscope

    OSCILLOSCOPE Vertical controls menu The Oscilloscope (Figure 10-9) graphs the amplitude of an audio signal over time. Figure 10-7: The Vertical controls. Amplitude is displayed on the y-axis and time is In Zoom/Offset mode, Zoom sets the display zoom displayed on the x-axis. A thick white vertical line from 1x to 100x, and Pos sets the center amplitude marks where time equals zero;...
  • Page 83 View menu Horizontal controls menu The View menu (Figure 10-10) lets you choose how to display the audio channel(s) being displayed. Figure 10-11: Horizontal controls. View menu In Zoom/Offset mode, Zoom sets the display zoom What it displays setting from 1/1000x to 10x, where the number represents Left Left channel only the number of pixels per sample.
  • Page 84 Type I recognition provides the most stable these can be enabled simultaneously. If neither is display of the waveform. It is the most resistant to enabled, the criteria will not be found because the change. Louder transients, such as those produced trigger is not looking at any audio signal.
  • Page 85 Trigger modes Measurement information The Trigger menu (Figure 10-12) provides four You can view detailed information about a modes: particular time range by using the measurement bars (Figure 10-9). Trigger mode What it does To adjust the left and right edges of the None The Trigger is not active;...
  • Page 86 useful for balancing the effect of the attack on the the Oscilloscope as you adjust its sound to check transient, relative to the decay portion of the in real time for undesirable (and possibly waveform. Conversely, you can see the effect of the inaudible) characteristics, which are easily seen in threshold setting directly on the decay portion, the Oscilloscope display.

  • Page 87: X-Y Plot

    X-Y PLOT The higher the meter, the higher the correlation The X-Y Plot window (Figure 10-13) graphs the between the two channels. Below are a few amplitude of a stereo audio signal on a two- examples: dimensional grid. Mathematical Situation Meter level X-Y Plot graph relationship For each unit of time (i.e., each sample), the...
  • Page 88 shown in white and then fades to gray. To adjust Pause button the scale of this color/brightness change, see “Decay” on page 89. Axes The Axes control (Figure 10-14) sets the opacity of Figure 10-14: View controls. the grid displayed in the graph, from 100% (fully Pausing the display visible) down to 0% (fully hidden).
  • Page 89 origin (center of the grid). When warp is negative, they expand away from the origin. The further the warp value is from zero, the greater the effect. Using the X-Y Plot Figure 10-17: The Persistence controls. The X-Y Plot helps you “see” the width of the stereo field of a mix (Figure 10-18).

  • Page 90: Phase Analysis

    PHASE ANALYSIS View controls The View controls (Figure 10-20) provide several The Phase Analysis window (Figure 10-19) graphs options for the Phase Analysis display. frequency versus phase difference versus amplitude of a stereo signal on either rectangular or polar coordinates. Pause button In rectangular coordinates, the vertical axis represents frequency, and the horizontal axis...
  • Page 91 Line/Scatter Rectangular/Polar Choose either Line or Scatter from the menu in the Choose either Rectangular or Polar from the menu View section (Figure 10-20) to plot each data in the View section (Figure 10-20) to control how point as either a single pixel or as a continuous line audio is plotted on the Phase Analysis grid.
  • Page 92 Horizontal and vertical controls Max delta theta Max delta theta (Figure 10-25) only affects Line The Horizontal and Vertical controls view (see “Line/Scatter” on page 91) and sets the (Figure 10-24) let you scale each axis of the grid maximum difference in frequency between plot and offset its zero point.
  • Page 93 y axis) are outside the critical frequency range of Checking for phase issues in stereo tracks You can use the Phase Analysis window to check the instrument being recorded, you can avoid the overall polarity of a stereo mix. Figure 10-27 is phase problems among the mic signals.
  • Page 94 M O T U A U D I O T O O L S...

  • Page 95: About Avb

    ■ The MOTU AVB Switch ....... . .100 devices all clock together over your network for...

  • Page 96: Networking

    Apple supports AVB on all current shipping Macs, AVB network latency is 2 ms. MOTU AVB and the 828es can operate as a standard AVB audio network latency is an astonishing 0.6 ms, even interface when connected to your Mac’s AVB- over seven “hops”...

  • Page 97: Networking Examples

    Personal studio expansion Studio room More mic inputs, or additional mic Let’s say you have an 828es next to your computer. inputs for drum kit You could add an 8M interface and position it Studio room 8 more mics on the drum kit...

  • Page 98: A Quick Guide To Networking

    AVB audio can’t pass through more than seven ■ AVB-compatible switch. You can use any standard switches. However, you can daisy-chain more than AVB switch on the market. MOTU offers the five- seven switches and route audio freely among port MOTU AVB Switch™ (sold separately). ☛...

  • Page 99: Setting Up A Motu Interface For Networking

    NETWORK STREAMS If a host computer is connected to an interface 1 In the MOTU Pro Audio Control web app, (through USB), mapping network input and choose the device (item #1 on page 12). output streams is accomplished as described in the...

  • Page 100: Device Presets And Avb Stream Connections

    CONNECTIONS An Ethernet hub or switch connected to a local ■ When you save a preset for a MOTU device (item home, studio, or office network 7 on page 12), any AVB stream connections that it has established with other devices on the network Any other standard networking device ■...

  • Page 101: Part3 Appendices

    Part3 Appendices...

  • Page 103: Troubleshooting

    46 for detailed information on does not support input monitoring, you will need how to word clock your gear. Whenever there is to use the mixer in the 828es. Please see any unexpected noise or distortion, suspect “Monitoring through the 828es” on page 65.
  • Page 104 Source to Internal and try recording just using the The serial number of your MOTU device. This ■ analog inputs and outputs on the 828es. If you is printed on a label placed on the bottom of the encounter the same artifacts you may want try rack unit.

  • Page 105: Audio Specifications

    Audio Specifications APPENDIX MIC in Connector Type Combo-style, XLR / TRS Pin 2 hot, tip hot Impedance load 2.65 k ohm -20 dB, Switchable per channel Phantom power +48 v, switchable per channel DIN 45596 / IEC 61938-P48 -128 dBu XLR Terminated Dynamic Range 118 dB...
  • Page 106 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 -108 dB -2 dBFS, Unweighted Frequency Response +0, -0.1 dB, 20 Hz/20 kHz Ref.
  • Page 107 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 S/PDIF Connector Type...
  • Page 108 A P P E N D I X B : A U D I O S P E C I F I C A T I O N S...

  • Page 109: Mixer Schematics

    Mixer Schematics APPENDIX MONO INPUT CHANNEL...
  • Page 110 STEREO INPUT CHANNEL A P P E N D I X C : M I X E R S C H E M A T I C S...
  • Page 111 GROUP BUS A P P E N D I X C : M I X E R S C H E M A T I C S...
  • Page 112 MONITOR BUS A P P E N D I X C : M I X E R S C H E M A T I C S...

  • Page 113: Updating Firmware

    1 Download the firmware file from You can update firmware with or without internet motu.com/proaudio. access. Both scenarios are explained below. Figure D-1: The firmware update banner appears across the Device tab when your web host has internet access and MOTU posts an update.
  • Page 114 6 Follow the on-screen instructions. 7 If you have a Mac, and you normally use USB or Thunderbolt to connect the 828es to your Mac, it is a good idea to disconnect the Ethernet cable after you complete the update, so that the Mac doesn’t switch to Ethernet as the primary audio...

  • Page 115: Osc Support

    MOTU audio interfaces support OSC, which provides remote control of all device settings and mixer controls from any OSC-enabled controller. For further details about remote control through...
  • Page 116 A P P E N D I X E : O S C S U P P O R T...

  • Page 117: Index

    Coax Factory Defaults 24-bit Cockos Reaper Firefox optical Compressor effect Firmware 2x SMUX mode Computer Channel for LTC-to-MTC version 828es Conversion Firmware updates expansion Computer Setup Follow Solo setup example Computer Volume Controls option Foot switch specifications Condenser mic input...
  • Page 118 Pedal A volume control Pedal B/LRC Monitoring Performance Latency thru main outs Phantom power Launch Mac Virtual Entity Mono button Phase Analysis MOTU Phase-lock menu Audio Tools Phone outputs Leveler AudioDesk Power switch Limit button AVB Installer PRE button Live...
  • Page 119 RMS mode Stand-alone operation Trim Routing tab Standard (optical setting) Troubleshooting Steinberg TRS analog inputs/outputs Cubase TRS connectors Nuendo S/PDIF Sticky Type II (Legacy) optical setting connection Stop Jam Sync meters Studio setup (example) optical Synchronization sync Unbalanced analog Become Clock Master Safari Update From File SMPTE time code...
  • Page 120 I N D E X...

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