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Grimm Audio MU2 User Manual

Grimm Audio MU2
37 pages
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Grimm Audio MU2 Specifications

General IconGeneral
Streaming servicesSpotify Connect, Roon Ready, Airplay
Digital InputsUSB
Digital OutputsAES/EBU, S/PDIF
Analog OutputsXLR, RCA
Supported FormatsPCM up to 384kHz, DSD up to DSD256
DAC Resolution32-bit
Power SupplyLinear power supply

Summary

1 Introduction

Manual Scope and Availability

Outlines the manual's focus on MU2 software and its download-only availability.

MU2 User Interface Description

Display States and Indicators

Details the MU2 display behavior in various operational states and LED functions.

MU2 Activity LED Modes

Explains the function and modes of the MU2 activity LED indicator.

Support Mode Functionality

2 Roon Labs Integration

Enable Roon Extension for Track Information

Guides on activating the Roon Extension for displaying track data on the MU2.

Roon Configuration Settings

Volume Limit Settings

Advises on setting comfort limits for the Roon volume fader.

Roon Device Setup for MU2

Details preferred Roon settings for the MU2 device.

Roon Library Analysis

Background Analysis Speed Configuration

Configures the speed of Roon's background library analysis.

Roon Software Management

Roon Software Updates

Covers updates for Roon Server and the Roon Remote app.

Common Roon Known Issues

Lists common issues like playback interruptions and DSD glitches.

MU2 External Storage

USB Storage Connection

Explains connecting and using external USB drives for music playback.

MU2 Storage Options

Network Storage Setup

Guides on adding network drives or NAS for music storage.

Internal Storage Management

Discusses the optional internal disk for music files.

Accessing MU2 Internal Storage

Windows Access to Internal Disk

Provides steps to access the internal disk from Windows.

Mac Access to Internal Disk

Provides steps to access the internal disk from macOS.

Roon Storage and Database Management

Integrating Internal Storage with Roon

Explains how to integrate the MU2's internal storage into Roon.

Roon Database Access and Reset

Details accessing and resetting the Roon database for troubleshooting.

3 Main Knob Control Operations

Music View Navigation

Explains the default Music View and main knob controls.

Music View Display Content

Main Knob Control Functions

Volume Adjustment

Describes how to adjust volume using the main knob.

Source Input Selection

Guides on selecting audio sources via the main knob.

MU2 Menu Navigation

Menu View and Standby Mode

Explains entering Menu View and activating standby mode.

Standby Mode Power Management

Provides information on power consumption and shutdown in standby.

MU2 Settings Menus

Help Menu and Network Status

Details the Help menu and network status indicators.

General Settings Adjustment

Covers basic settings like LED and Display brightness.

Advanced MU2 Settings Access

GRUI Connection QR Code

Provides QR code for connecting to the GRUI web interface.

Infrared Remote Setup

Guides on programming an infrared remote for MU2 control.

MU2 Software Updates

Software Version and Update Process

Allows checking software versions and initiating updates.

MU2 Support and Diagnostics

Support Mode Activation and Use

Explains how to activate Support Mode for remote assistance.

4 GRUI MU2 Web Control Interface

Connecting to the GRUI

Details methods for connecting to the MU2's web interface.

GRUI Main Page Controls

MU2 Settings Configuration

Appearance Settings

Adjusts LED and display brightness, and auto-dim feature.

Volume Control Settings

Configures startup volume and fixed volume options.

MU2 Customization Options

Headphone Output Offset Adjustment

Sets an offset for the headphone output sensitivity.

Input Source Configuration

Allows enabling, disabling, and renaming input sources.

GRUI IR Remote Programming

Advanced MU2 System Management

Roon Server Status Management

Options to start and stop the Roon Server.

Software License Information

Displays information about the software licenses used.

MU2 System Reset Procedures

Reset MU2 Settings to Default

Resets MU2 settings to default values.

Reset Roon Database

Stops Roon and erases the Roon database.

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