Overview

Accessories

Inserting the batteries
Operating range of the remote control unit
Features

High quality sound
High performance
Easy operation
Part names and functions

Front panel
Display
Rear panel
Remote control unit

Connections

Connections
Speaker installation
Connecting speakers

Before connecting speakers
Speaker configuration and “Amp Assign” settings
Connecting 5.1-channel speakers
Connecting 7.1-channel speakers
Connecting 5.1-channel speakers: Bi-amp connection of front speaker
Connecting 5.1-channel speakers: Second pair of front speaker
Connecting multi-zone speakers
Connecting an external power amplifier
Connecting a TV

Connection 1 : TV equipped with an HDMI connector and compatible with the ARC (Audio Return Channel) / eARC (Enhanced Audio Return Channel)
Connection 2 : TV equipped with an HDMI connector and incompatible with the ARC (Audio Return Channel) / eARC (Enhanced Audio Return Channel)
Connection 3 : TV equipped without an HDMI connector
Connecting a playback device

Connecting a set-top box (Satellite tuner/cable TV)
Connecting a DVD player or Blu-ray Disc player
Connecting a player device compatible with the 8K
Connecting a video camcorder or game console
Connecting a turntable
Connecting a USB memory device to the USB port
Connecting FM/AM antennas (for FM/AM model only)
Connecting a DAB/FM antenna (for FM/DAB model only)
Connecting to a home network (LAN)

Wired LAN
Wireless LAN
Connecting an external control device

REMOTE CONTROL jacks
DC OUT jack
Connecting the power cord

Playback

Basic operation

Turning the power on
Selecting the input source
Adjusting the volume
Turning off the sound temporarily (Muting)
Playback a DVD player/Blu-ray Disc player
Playing a USB memory device

Playing files stored on USB memory devices
Listening to music on a Bluetooth device

Playing music from Bluetooth device
Pairing with other Bluetooth devices
Reconnecting to this unit from a Bluetooth device
Listening to audio on Bluetooth headphones

Listening to audio on Bluetooth headphones
Reconnecting to a Bluetooth headphones
Disconnecting Bluetooth headphones
Listening to FM/AM broadcasts (for FM/AM model only)

Listening to FM/AM broadcasts
Tuning in by entering the frequency (Direct Tune)
RDS Search
PTY Search
TP Search
Radio text
Changing the tune mode (Tune Mode)
Tuning in to stations and presetting them automatically (Auto Preset Memory)
Presetting the current broadcast station (Preset Memory)
Listening to preset stations
Specify a name for the preset broadcast station (Preset Name)
Skipping preset broadcast stations (Preset Skip)
Cancelling Preset Skip
Listening to FM/DAB broadcasts (for FM/DAB model only)

Listening to FM broadcasts
Tuning in by entering the frequency (Direct Tune)
RDS Search
PTY Search
TP Search
Radio text
Changing the tune mode (Tune Mode)
Tuning in to stations and presetting them automatically (Auto Preset Memory)
Listening to DAB broadcasts
Auto scanning DAB broadcast stations (Auto Scan)
Checking the reception intensity of stations (Tuning Aid)
Setting the order of broadcasting station (Station Order)
Suppressing the dynamic range (DRC)
Resetting the DAB settings (DAB Initialize)
Checking the current DAB version (DAB Version)
Presetting the current FM/DAB broadcast station (Preset Memory)
Listening to preset stations
Specify a name for the preset broadcast station (Preset Name)
Skipping preset broadcast stations (Preset Skip)
Cancelling Preset Skip
Listening to Internet Radio

Listening to Internet Radio
Playing back files stored on a PC or NAS

Playing back files stored on a PC or NAS
Getting the HEOS App

HEOS Account
Playing from streaming music services
Listening to the same music in multiple rooms
AirPlay function

Playing songs from your iPhone, iPod touch or iPad
Playing iTunes music with this unit
Play a song from your iPhone, iPod touch or iPad on multiple synced devices (AirPlay 2)
Spotify Connect function

Playing Spotify music with this unit
Convenience functions

Adding to HEOS Favorites
Playing back HEOS Favorites
Deleting a HEOS Favorites
Adjusting the volume of each channel to match the input source (Channel Level Adjust)
Adjusting the tone (Tone)
Displaying your desired video during audio playback (Video Select)
Adjusting the picture quality for your viewing environment (Picture Mode)
Playing the same music in all zones (All Zone Stereo)
Changing the speaker settings to match the listening environment (Speaker Preset)
Selecting a sound mode

Selecting a sound mode
Direct playback
Pure Direct playback
Auto surround playback
Description of sound mode types
Sound mode that can be selected for each input signal
HDMI Control function

Setting procedure
Smart Menu function
Sleep timer function

Using the sleep timer
Smart select function

Calling up the settings
Changing the settings
Panel lock function

Disabling all key button operations
Disabling all button operations except VOLUME
Canceling the Panel lock function
Remote lock function

Disabling the sensor function of the remote control unit
Enabling the remote sensor function
Web control function

Controlling the unit from a web control
Playback in ZONE2 (Another room)

Connecting ZONE2
Playback in ZONE2

Settings

Menu map

Menu operations
Audio

Center Level Adjust
Subwoofer Level Adjust
Surround Parameter
M-DAX
Audio Delay
Volume
Audyssey®
Graphic EQ
Video

Picture Adjust
HDMI Setup
Output Settings
On Screen Display
Screen Saver
4K/8K Signal Format
HDCP Setup
TV Format
Inputs

Input Assign
Source Rename
Hide Sources
Source Level
Speakers
Audyssey® Setup

Procedure for speaker settings (Audyssey® Setup)
Error messages
Retrieving Audyssey® Setup settings
Manual Setup

Amp Assign
Speaker Config.
Distances
Levels
Crossovers
Bass
Front Speaker
Speaker Preset
Network

Information
Connection
Wi-Fi Setup
Settings
Network Control
Friendly Name
Diagnostics
AirPlay
HEOS Account

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General

Language
ECO
Bluetooth Transmitter
ZONE2 Setup
Zone Rename
Smart Select Names
Trigger Out
Front Display
Firmware
Information
Usage Data
Save & Load
Setup Lock
Reset
Limiting the operating zone with the remote control

Tips

Tips
Troubleshooting

Power does not turn on / Power is turned off
Operations cannot be performed through the remote control unit
Display on this unit shows nothing
No sound comes out
Desired sound does not come out
Sound is interrupted or noise occurs
No video is shown on the TV
The menu screen is not displayed on the TV
The color of the menu screen and operations content displayed on the television is different from normal
AirPlay cannot be played back
USB memory devices cannot be played back
Bluetooth cannot be played back
The Internet radio cannot be played back
Music files on PC or NAS cannot be played back
Various online services cannot be played
The HDMI Control function does not work
Cannot connect to a wireless LAN network
Update/upgrade error messages
Resetting factory settings
Resetting network settings
Restoring the firmware to the factory defaults

Appendix

About HDMI
Video conversion function
Playing back a USB memory devices
Playing back a Bluetooth device
Playing back a file saved on a PC or NAS
Playing back Internet Radio
Personal memory plus function
Last function memory
Explanation of terms
Trademark information
Specifications
Dimensions / Weight
Index
PDF Download
Surround Parameter Table (English only)

Accessories

Check that the following parts are supplied with the product.

Acce S55N

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