Overview

Part names and functions

Mounting in a rack

Connecting speakers (4 stereo zones)

Connecting to an external amplifier or AV receiver

Connecting a subwoofer

Connecting a USB flash drive

Trigger control

Connecting external devices

Connecting to network

Connecting a pre-amplifier (Power amplifier mode)

Switching to Power Amplifier Mode

Powering this unit

Getting the HEOS app

Setup

Adding the registration of HEOS Built-in devices in the HEOS app

Adding wired HEOS Built-in devices

Adding wireless HEOS Built-in devices

Playback

Playing from streaming music services

Selecting a room/device

Selecting the music track or station from music sources

Listening to the same music in multiple rooms

Ungrouping rooms

Grouping all rooms

Ungrouping all rooms

Listening to Internet Radio

Playing music stored on your mobile

Playing back files stored on a PC or NAS

Playing music from an external device

Playing music from a USB flash drive

AirPlay function

Playing songs from your iPhone, iPod touch, iPad or Mac

Playing songs from Windows PC

Play a song from your iPhone, iPod touch, iPad or Mac on multiple synced devices (AirPlay 2)

Spotify Connect function

Playing Spotify music with your speaker

Troubleshooting

Troubleshooting

This unit turns off and the protection Indicator flashes in red

Music cuts out or delays sometimes

I hear a delay when using the external input with my TV

Resetting this unit

Restoring this unit to factory defaults

Status LED

Status LED table

Appendix

Power management

Supported file types and codecs

Supported audio formats (Optical)

Trademark information

Connecting to an external amplifier or AV receiver

Connect the PRE OUT output to an available input on your amplifier or AV receiver using the appropriate cables.

NOTE

When connecting to the PRE OUT terminal of the unit, configure the following settings in “My Devices” in the HEOS app

Set Sub Out (L) to disable.

Set Preamp Out to enable.

Conne AMP M4