Grace M905 User Manual

Digital and Analog Versions
Owner’s Manual Revision E
ACU Firmware v1.16
RCU Firmware v1.16
XMOS Firmware v1.16

Grace M905 Specifications

General

Brand	Grace
Model	M905
Category	Controller
Language	English

Summary

Important Safety Information

m905 Features Overview

m905 Graphical User Interface (GUI)

GUI Element Descriptions

Detailed explanation of the m905 Graphical User Interface elements and their functions.

Unpacking and Installing the m905

Connecting the m905

Power Connections and Setup

Details power supply requirements and connection procedures for the m905.

System Connections Overview

Analog and Digital Input/Output Ports

Detailed descriptions of all analog and digital input and output connections for the m905.

Normal Operation Mode

Input Selection Guide

Explains how to select audio sources using the RCU input buttons and the LCD display.

Volume Control, Presets, and Headphone Mute

Speaker Output Selection

Monitoring Option Controls

Display Information

DAC Status and SPL Meter Display

Details the information provided by the DAC status and real-time SPL meter displays.

User Configuration Save and Recall

Setup Mode Navigation

Entering and Exiting Setup Mode

How to enter and exit the m905 setup menu and its modes.

Input Setup Configuration

Customizing Input Names

How to customize the displayed name for each input source.

Speaker Setup Configuration

Customizing Speaker Names

How to customize the displayed name for each speaker output.

Speaker Output Level and Balance Settings

SUB / DAC / METER Output Setup

Configuring SUB, DAC, and Meter Output Modes

Cue Output Setup

Headphone Setup Options

Headphone Balance and Level Calibration

Talkback Setup Configuration

Talkback Source and Gain Settings

General Setup Menu

SPL Meter Setup

SPL Meter Activation and Filter Type

SPL Peak Mode and Response Ballistics

Computer Audio Setup

Asynchronous USB Audio Operation

Explanation of the asynchronous mode USB audio interface.

USB Up Channel Configuration

Setting up USB to send audio channels back to the computer.

Computer Audio Requirements

DAW Playback with m905

Firmware Update Procedures

Updating RCU Firmware

Updating ACU Firmware

Updating XMOS Firmware

m905 Technical Specifications

Analog I/O and Phono Module Specifications