LG SN9YG 5.1.2 Channel High Res Audio Sound Bar Manual

LG SN9YG 5.1.2 Channel High Res Audio Sound Bar Manual

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LG SN9YG 5.1.2 Channel High Res Audio Sound Bar Manual

Please read this manual carefully before operating your set and retain it for future reference. To view the instructions of advanced features, visit http://www.lg.com and then download Owner's Manual. Some of the content in this manual may differ from your unit.

Front Panel

Front Panel

(Standby) Switches the unit ON or OFF.
(Function) Selects function.
(Volume) Adjusts volume.
Play / pause
(Mic mute) Enables and disables Voice recognition.
Standby and Stops feedback of Google Assistant.

informationReset the Unit
Press and hold the on the unit until you hear the beep sound once.

Rear Panel

Rear Panel

HDMI OUT (TV eARC/ARC) Connect to a TV.
HDMI IN Connect to device with HDMI OUT.
OPTICAL IN Connect to an optical device.
USB port Connect to a USB device.

Make sure to properly align and connect the optical cable; improper alignment may cause damage to the jack.

Subwoofer Connection

Place the wireless subwoofer near the sound bar and follow steps below.

  1. Connect the power cord of the sound bar and the wireless subwoofer to the outlet.
  2. Turn on the sound bar.
    • The sound bar and wireless subwoofer will be automatically connected. The subwoofer's green LED turns on.

Manually Subwoofer Connection

If the subwoofer does not make sound, try to connect manually.

  1. Press Pairing on the rear of the wireless subwoofer.
    • The green LED on the rear of the wireless subwoofer blinks quickly. (If the green LED does not blink, press and hold the Pairing.)
  2. Turn on the sound bar.
    • Pairing is completed. The green LED on the rear of the wireless subwoofer turns on.

Keep the sound bar and the subwoofer away from the device (ex. wireless router, microwave oven, etc.) over 1 m to prevent wireless interference.
Manually Subwoofer Connection

TV Connection

Connect the sound bar and TV using Optical () or HDMI ARC (.

Optical Connection

  1. Connect the sound bar to the TV using Optical cable.
  2. Set up [External Speaker (Optical)] on your TV setting menu.
    Optical Connection

HDMI (TV eARC/ARC) Connection

  1. Connect the sound bar to the TV using HDMI cable.
  2. Set up [External Speaker (HDMI ARC)] on your TV setting menu.
    HDMI (TV eARC/ARC) Connection


  • HDMI connection is unavailable if your TV does not support HDMI ARC.
  • If this unit is connected by OPTICAL and ARC at the same time, the ARC signal has a higher priority.

Additional Device Connection

  1. Connect to the external device like as follow.
    Additional Device Connection
  2. Set the input source by pressing F repeatedly.

Network Connection

Network Connection

  1. Check network condition. A router connected to network should be installed.
  2. Connect your smart device to your home network.
  3. Connect the sound bar to the power supply.

All devices should be connected to same router.

  1. Install "Google Home" App
    Download the Google Home App from the Google Play or App Store.
  2. Set up the Wi-Fi connection with app
    1. Connect your smart device to the Wi-Fi network that you'll use for your unit.
      In case of iOS devices, it should be turned on Bluetooth setting on your smart device.
    2. Launch the "Google Home" app.
    3. Follow the steps for Wi-Fi connection on the app.
      • When the unit is properly connected to Wi-Fi, "CONNECTED" will appear on the display window with sound.
      • When connect to Wi-Fi, this app may request to create a Google Account. You will need a Google account to use this app.
      • "Google Home" app is provided by Google. It might be revised by a change of Google Policy.
      • For more information (Set up, Usage, Help etc.), research "Google Assistant Help" or visit the web site. https://support.google.com/assistant This public site is provided for devices that work with Google Assistant.
      • The unit may not be available for use on some functions from the "Google Assistant Help" site.
      • The speaker is not compatible with "Smart ThinQ" app. Therefore it is not available in setup and cannot be controlled by using "Smart ThinQ" app.

Bluetooth Connection

  1. Connect the Wi-Fi
    Make sure the unit connects to Wi-Fi by using "Google Home" app.
    Bluetooth function is inactive before connecting to Wi-Fi.
  2. Change Function
    Select the Bluetooth function by pressing F repeatedly.
  3. Find and Select your speaker name
    Select speaker name that was set on "Google Home" app on the device list of your smart device. When successfully connected Bluetooth, "PAIRED" will appear on display window.

How to Use "Google Assistant"

Make sure the unit is connected to Wi-Fi.

Case 1. Say "Ok Google"
Case 1. Say “Ok Google”

The Google Assistant only responds to voice commands when you are using Wi-Fi or BT (Bluetooth) as the input. If you are using HDMI, Optical, ARC, Optical Sound Sync, or USB input, then you must use the button to activate the Google Assistant.

Case 2. Press .
Case 2.

Voice command

  • Plan your day
    "Tell me about my day."
    "What's my next meeting?"
    "Set a reminder to check schedule at 6pm."
  • Weather
    "What's the weather?"
    "What's the weather on tomorrow?"
    "What's the weather in New York?"
  • Music
    "Play the music." "Next song."
    "Previous song." "Pause the music"
  • Availability
    "How many calories in a hot dog?"
    "How do I get to Ocean Beach?"
    "How do you say hello in Korean?"
    "Talk to Best Jokes."
  • Internet
    "What movies are showing this weekend?"
    "Why is the sky blue?"
    "What is the smallest country in Europe?"
    "How much sugar is there in a Coke?"
  • Subscriptions
    "What are the latest headlines?"
    "Play Time's The Brief."
  • Smart Home
    "Turn up the thermostat."
    "Set the thermostat to 22 degrees"
    "Dim the lights in the kitchen."
    "Is the light on in the living room?"
  • For more information on the voice commands, refer to the "Google Home" app screen or visit the web site. https://support.google.com/assistant
  • If you're having problems with Voice recognition or this product, suggest your feedback by saying "Ok Google, feedback". It is helpful to Google Service quality enhancement.


Comfortable Function

With the Google Assistant built in, you can control compatible smart home devices such as TV's, lights, switches, plugs, thermostats and more by simply using your voice.

For more information, visit the below web site.

Download LG Sound Bar Application

You can manage the speaker settings and control the speaker by using "LG Sound Bar". Download "LG Sound Bar" on the App Store or Google Play Store.

AI Room calibration

AI Room Calibration is a sound tuning tool, which adjusts the audio settings of the Sound Bar based on the room acoustics and environment. To access the AI Room Calibration it is necessary to install the "LG Sound Bar" app. On [Sound Setting] menu, choose [AI Room Calibration].

Remote control

Remote control

SOUND EFFECT: Selects a sound effect mode.

  • TV remote: Long press SOUND EFFECT and press it again to use TV remote control.

: Standby and Stops feedback of Google Assistant.

: Adjusts sound level of each speaker.

  • Surround sound: Long press and press it again.

: Turns on or off the Night time mode.

FOLDER /: Searches a folder.

: Displays the information of a file, an input source, a connected Bluetooth device name or an application name.

AUTO POWER: Automatically turns on by an input source.

REPEAT: Listens to your files repeatedly or randomly.

Replacement of Battery

Replacement of Battery

Additional Information


Power requirements Refer to the main label.
Power consumption Refer to the main label.
Dimensions (W x H x D) Approx. 1220.0 mm x 57.0 mm x 145.0 mm (with foot)
Bus Power Supply (USB) 5 V 500 mA
Amplifier (Total RMS Output power) 520 W RMS

Design and specifications are subject to change without notice.

Rear Speakers Ready
Ready for surround sound with Rear Speakers Kit sold separately. (SPK8-S)

To enjoy content containing Dolby Atmos® and DTS:X®, the connected device and content must support Dolby Atmos® and DTS:X®.


To obtain the source code under GPL, LGPL, MPL, and other open source licenses, that is contained in this product, please visit http://opensource.lge.com.
In addition to the source code, all referred license terms, warranty disclaimers and copyright notices are available for download.
LG Electronics will also provide open source code to you on CD-ROM for a charge covering the cost of performing such distribution (such as the cost of media, shipping, and handling) upon email request to opensource@lge.com.
This offer is valid for a period of three years after our last shipment of this product. This offer is valid to anyone in receipt of this information.
For more information about Google's open source, visit device settings of Google Home app.


  • Google, Google Home, Google Play, Chromecast builtin and other related marks and logos are trademarks of Google LLC.
  • The Google Assistant requires an internet/data connection. Data rates may apply.
  • The Google Assistant is not available in certain languages and countries.
  • Subscriptions may be required, and additional terms, conditions and/or charges may apply.
  • Controlling certain devices and features in your home requires a compatible smart device.

Copyright © 2020-2021 LG Electronics Inc. All Rights Reserved.


Documents / Resources


Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download LG SN9YG 5.1.2 Channel High Res Audio Sound Bar Manual


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