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MOTU 828 User Manual

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

General IconGeneral
Bus PoweredNo
Phantom PowerYes
Bit Depth24-bit
Audio Interface TypeUSB
Digital Inputs1 x S/PDIF
Digital Outputs1 x S/PDIF
Sample Rates44.1, 48, 88.2, 96 kHz
USBUSB 2.0
A/D Resolution24-bit
Analog Inputs8 x XLR-1/4" combo
MIDI I/O1 in, 1 out

Summary

Safety and Electrical Precautions

Electrical Safety and Grounding

Covers warnings related to electrical shock, grounding requirements, and proper outlet usage.

Environmental and Fire Safety

Addresses precautions regarding heat, ventilation, and reducing the risk of fire or electrical shock.

License and Warranty Information

Software License Terms

Details the terms and conditions of the software license agreement.

Hardware Limited Warranty

Outlines the warranty period, terms, and exclusions for the hardware.

Regulatory Compliance

FCC Compliance and Interference Warnings

Explains FCC compliance for digital devices and potential interference.

Quick Start Guide

User Setup Procedures

Provides step-by-step instructions for Mac, Windows, and all users.

Rack-Mount Installation

Details the requirements for mounting the 828 unit in a standard 19-inch rack.

828 Front Panel Overview

Front Panel Controls

Description of the physical controls on the front panel, including inputs, gain, and monitor controls.

Menu and Navigation Controls

Explanation of menu access, navigation buttons, and LCD display functions.

828 Rear Panel Overview

Rear Panel Connectivity Details

Description of all physical input and output connectors on the rear panel.

About the 828

Comprehensive I/O and Connectivity

Overview of the 828's analog and digital I/O, universal connectivity, and mic/guitar inputs.

828 Features and Interfaces

Analog, DSP, and Software Features

Details on analog I/O, DSP mixing, software control, and stand-alone operation.

Digital I/O and Other Interfaces

Covers ADAT, S/PDIF, MIDI, Word Clock, and Foot Switch interfaces.

828 Device Capabilities

Display, Outputs, and Operation Modes

Information on the LCD display, headphone outputs, control room features, and operation modes.

Packing List and System Requirements

Item Checklist

Lists the items included in the 828 package.

System Requirements

Specifies the necessary hardware and software for the 828.

Product Registration Information

Details on how and why to register the 828 product.

Software Installation Guide

USB Audio Class-Compliant Operation

Explains using the 828 without installing drivers on macOS and iOS.

Installation Procedure and Drivers

Covers the installer process, audio drivers, and latency performance.

ASIO and Windows Driver Support

Details ASIO driver support and Windows-specific driver information.

Software Configuration Options

Windows Driver Settings

Covers WDM drivers, Host Buffer Size, Safety Offsets, and sample rate sync.

CueMix 5 and Performer Lite

Information on using the CueMix 5 app and Performer Lite software.

Software Integration Guide

Working with Host Audio Software

Guidance on integrating the 828 with DAWs and other audio applications.

MIDI Setup and Configuration

Instructions for setting up MIDI I/O on Windows and macOS.

Hardware Installation Guide

Initial Setup and Connections

Covers USB, iOS, typical setup, audio, and MIDI connections.

Synchronization and Timing

Details on clocking, foot switch, S/PDIF, optical, and word clock synchronization.

Audio Connection Details

Mic/Line/Instrument Input Configuration

Explains mic/line/instrument inputs, phantom power, preamp gain, and pad settings.

Analog Signal Path Details

Mic Inserts and TRS I/O

Details on using mic inserts and TRS quarter-inch connections.

Analog Output and Processing Features

Main Outputs and Monitoring Setup

Covers main outputs, monitor A/B selection, and trim/gain controls.

Signal Processing Options

Details on Pre/Post Fx switching and guitar re-amping.

Digital I/O and Expansion Options

Optical I/O and TOSLink Configuration

Explains optical I/O, TOSLink format, and source selection.

MIDI and Clocking Information

MIDI Connections and THRU Functionality

Describes MIDI connections and configuring the MIDI OUT as THRU.

Clocking for Optical Devices

Briefly mentions clock synchronization for optical connections.

Synchronization Principles

Digital Clock Synchronization Concepts

Explains phase lock, choosing a master clock, and sync scenarios.

Syncing Digital Devices

S/PDIF Device Synchronization

Details on how to sync the 828 with S/PDIF devices.

Optical Device Synchronization

Describes methods for syncing optical devices with the 828.

Syncing Word Clock Devices

Word Clock Master/Slave Setup

Explains how to resolve devices using word clock, including daisy-chaining.

Front Panel Operation Guide

Level Meters and Display Indicators

Describes the front panel LCD, meters, lock icon, USB, and MIDI status.

Menu Navigation and Controls

Explains how to navigate menus and use the MENU, SELECT, and BACK buttons.

Volume and Gain Controls

Details on controlling headphone volume, monitor volume, and preamp gain.

Front Panel Operation Features

Volume, Gain, and Monitor Controls

Covers headphone volume, preamp controls, and monitor volume.

Monitor Group and A/B Mode

Explains how to configure monitor groups and switch between monitor pairs.

Talkback Functionality

Details on setting up and using the talkback feature.

Front Panel Operation Controls

Talkback Settings and Mic Effects

Covers talkback settings like Latch, Level, Dim, and Mic Effects.

Power Button Operation

Instructions for turning the unit on and off.

CueMix 5 Software Overview

Installer and App Setup Procedures

Guidance on installing the software and obtaining the iOS app.

Hardware Connection Prerequisites

Ensures the 828 is connected and powered on before running CueMix 5.

CueMix 5 Home Tab Interface

Home Tab Controls and Features

Explains the layout and controls within the CueMix 5 Home tab.

CueMix 5 Device Tab Settings

Core Device Settings

Covers Sample Rate, Clock Source, Loopback, Input Meters, and other device settings.

CueMix 5 Device Tab Configuration

Windows-Specific Device Settings

Details Windows settings like Host Buffer Size, Safety Offsets, and Audio Streams.

Device Presets and Version Information

Information on saving/loading presets and viewing version details.

CueMix 5 Input Tab Interface

Input Channel Settings and Effects

Configures gain, pad, phase, and USB host send options for inputs.

Optical Format Configuration

Sets the format for Bank A optical ports (ADAT or TOSLink).

Foot Switch Configuration

Enables and configures the foot switch input.

S/PDIF Input Metering

Displays level meters for S/PDIF inputs.

CueMix 5 Output Tab Interface

Monitor and Output Controls

Manages monitor volume, A/B switching, monitor groups, and output trim.

Source Selection for Outputs

Chooses the audio source for S/PDIF and Optical outputs.

CueMix 5 Mix Tabs Overview

Mix Tab Functionality and Controls

Explains how to create and manage individual monitor mixes for output pairs.

CueMix 5 Mix Inputs Details

Input Channel Sources for Mixes

Details available input sources for each mix, including analog, optical, and USB channels.

CueMix 5 Input Channel Strip

Channel Strip Components and Controls

Describes EQ, Gate/Compressor access, channel naming, pan, mute, meter, fader, and solo.

CueMix 5 Channel Settings

EQ and Filter Controls

Details on adjusting EQ bands, frequency, gain, Q, and filter types.

Compressor and Gate Access

Information on accessing and configuring the compressor and gate processors.

Mixer Effects Processing

Multi-Band Parametric EQ Details

Explains the four bands of parametric EQ, controls, and characteristics.

Gate and Compressor Functionality

Describes the function and application of the gate and compressor effects.

Mixer Effects Details

Gate Processor Operation

Details on the Gate's Threshold, Attack, and Release parameters.

Compressor Processor Operation

Explains the Compressor's Threshold, Ratio, Attack, and Release parameters.

Reverb Processor Features

Reverb Settings and Controls

Covers reverb settings like room size, pre-delay, damping, decay, and width.

Routing Inputs to Reverb

Explains how to route input signals to the reverb processor.

CueMix 5 Mix Management

Input Meters and USB Channels

Settings for mix input meters (pre/post-fader) and USB channels.

Device Presets and iOS App

Information on saving/recalling device presets and using the CueMix 5 iOS app.

CueMix 5 Discovery Tab Interface

Available Devices List and Switching

Displays connected MOTU devices and allows switching between them.

Device Connection Options

Covers connecting via IP address, virtual connections, and logging out.

Working with Host Audio Software

System Preparation and Setup

Covers running CueMix 5, setting sample rate, and clock mode.

Host Audio Software Integration

Choosing the 828 as Audio Interface

How to select the 828 in macOS and Windows audio software.

Monitoring Latency Concepts

Explains monitoring latency and its causes.

Managing Monitoring Latency

Direct Hardware Playthrough

Using the 828 mixer to bypass DAW monitoring for low latency.

Host Software Buffer Adjustment

Adjusting audio buffer size in host software, focusing on macOS.

Optimizing Buffer Settings

Buffer Size Trade-offs and Windows Settings

Discusses buffer size impact on CPU and latency, and Windows settings.

Loopback Functionality

Using Loopback for USB Audio Output

Details on sending USB audio back to the computer via loopback channels.

Mixing Loopback with Live Inputs

Instructions for combining loopback audio with live inputs.

Optical Expander Mode Guide

Enabling Optical Expander Mode

How to activate Optical Expander mode via the front panel or CueMix 5.

Setting Sample Rate and Clock Source

Ensuring proper clock resolution for optical connections.

Optical Expander Mode Mapping

Channel Mapping at 1x Sample Rate

Defines how optical inputs map to analog outputs at 1x sample rates.

Channel Mapping at 2x Sample Rate

Defines how optical inputs map to analog outputs at 2x sample rates.

Troubleshooting Common Issues

Mac Audio MIDI Setup Problems

Troubleshooting steps for the 828 not appearing in Audio MIDI Setup.

No Audio Input or Output

Steps to resolve issues with no audio passing through the 828.

Monitoring and Latency Issues

Guidance for monitoring problems and latency.

Clicks, Pops, and Drive Problems

Troubleshooting audio artifacts like clicks, pops, and drive issues.

Factory Reset and Power Cycling

Instructions for performing a factory reset and handling power cycling issues.

Technical Support and Feedback

Contacting MOTU Technical Support

Information on how to contact MOTU technical support via chat, call, or ticket.

Providing Problem Information

Details on the information needed to effectively solve technical problems.

Audio Specifications Overview

Mic Input Specifications (XLR and TRS)

Technical specifications for microphone inputs, including XLR and TRS.

Audio Specifications Details

Line Input/Output and Phones Specs

Technical specifications for line inputs, line outputs, and headphone outputs.

Digital and Power Specifications

S/PDIF, Word Clock, and Power Specs

Technical specifications for S/PDIF, Word Clock, and power supply.

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