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5.1.2 ch High Resolution Audio Sound Bar with Dolby Atmos

  • SJ9

Key Features

  • Dolby Atmos
  • High Resolution Audio
  • Chromecast Built-In
  • 4K Passthrough (HDCP 2.2)
  • Hi-Fi DAC
  • 24-bit Upsampling
The Best TV Sound bars You Can buy Right Now.



SJ9 Video Feature



Dolby Atmos

Dolby Atmos

Bring the cinema experience home! With Dolby Atmos, sounds can move anywhere in three-dimensional space, including above the listener for the ultimate in surround audio.

High Resolution Audio

High Resolution Audio

Digital music has gone audiophile, with higher sampling rates and bit depth which can contribute to a more accurate, more enjoyable listening experience. This CTA-certified sound bar can play back lossless stereo audio at up to 24-bit/192kHz quality.

Chromecast Built-In


Stream tunes wirelessly to the sound bar from popular apps* like Pandora and Google Play Music. Chromecast works seamlessly with a smartphone or tablet, iPhone, iPad, Mac or Windows laptop or Chromebook.

*Please check with content providers as services or products are subject to change at any time. Internet connection is required. Subscriptions may be required for some services.

4K Pass-Through

4K Pass-Through

4K resolution is the new video quality standard for streaming, disc and beyond. This sound bar supports HDCP 2.2 so it can deliver the full home cinema experience with no loss of 4K image quality.

24 bit Up-Sampling

24-bit Upsampling

24-bit sound contains more data than lower-quality audio, and is the standard for high-resolution music. This feature converts lower-resolution audio to a high-resolution 24-bit format for a more premium listening experience.

Bluetooth Connectivity

Wireless Connectivity

Wirelessly stream music directly from your Smartphone or other compatible device for a seamless listening experience.

LG Sound Sync

LG Sound Sync

Enhance the home cinema experience without the clutter of unnecessary cables. LG Sound Sync technology links compatible LG televisions to the sound bar wirelessly, using Bluetooth.

Dolby Atmos Yes
High Resolution Audio Up to 24bit/192kHz
Home Cinema Mode Yes
Group Play Mode Yes
Multi-Room Mode Yes
Auto Music Play Yes
Chromecast Built-in Yes
Spotify Connect Yes
Adaptive Sound Control (ASC) Yes
Channels 5.1.2ch
Total Power 500W
TV Remote Compatibility Yes
Smart Phone Remote App Yes
Universal Network Search Yes
BLE EZ Setup Yes
LG Sound Sync Yes
Auto Volume Leveler Yes
Audio Return Channel (ARC) Yes
Dynamic Range Control Yes
Network Software Update Yes
Night Mode Yes
Display Type LCD (8 char.)
iHeartRadio® Yes
Tunein® Yes
Spotify® Yes
Rhapsody® Yes
Pandora® Yes
Google Music Play Yes
npr Yes
ASC (Adaptive Sound Control: Default) Yes
Standard Yes
Music Yes
Bass Blast (BASS) Yes
Cinema Yes
Dolby Atmos Yes
Dolby True HD Yes
Dolby Digital Plus Yes
Dolby Digital Yes
DTS Digital Surround Yes
FLAC (Up to 192kHz) Yes
OGG (Up to 48kHz) Yes
MP3 Yes
AAC+ Yes
Front 43W x 2
Center 43W
Surround 43W x 2
Subwoofer 200W (wireless)
Ethernet Yes
Wi-Fi Band 2.4G / 5G
Wireless Active Subwoofer Yes
Bluetooth (ver. 4.0) Yes
LG TV Sound Sync (Bluetooth) Yes
LG TV Sound Sync (Optical) Yes
HDMI® 2.0 Out 1
HDMI® 2.0 Input 1
Optical Input 1
Portable In (3.5mm) Yes
Soundbar Power Consumption 46W
Soundbar Standby Power Consumption Less than 0.5W
Subwoofer Power Consumption 35W
Subwoofer Standby Power Consumption Less than 0.5W
Recommended TV Size 55" and above
Sound Bar (WxHxD) 47.24" x 2.28" x 5.71"
Subwoofer (W x H x D) 11.65" x 13.07" x 11.65"
Soundbar Net Weight 12.4 lbs.
Subwoofer Net Weight 16.8 lbs.
Shipping Size (WxHxD) 49.8” x 19.3” x 14.0”
Shipping Weight 37.9 lbs.
Remote Control Yes
Batteries Yes
Optical Cable Yes
Wall Mount Bracket Yes
Cable Management Yes
Warranty Card Yes
Limited Warranty 1 Year Parts and Labor
UPC 719192609525

What People Are Saying

Rated 5 out of 5 by from great soundbar it is a very nice soundbar, very nice and clear sound, not that loud but its perfect to watch movie witch dolby atmos,
Date published: 2018-02-15
Rated 5 out of 5 by from Easy set up and functions My old LG sound bar quit working so I thought I’d upgrade. Best thing I did. Great sound and easy to set up and use. The difference in sound is amazing.
Date published: 2018-02-09
Rated 5 out of 5 by from Awesome Sound and features Bought on a black Friday deal, fantastic sound and features. Rumbles the room with full HD sound. LOVE IT!!!
Date published: 2018-02-09
Rated 4 out of 5 by from Good but may be better options for price I bought this a week ago on very good deal and happy with purchase. Pros: Very sleek and good looking sound bar Very good sound quality with Dolby Atmos support Features like chrome cast /wifi is convinient Cons: Only one HdmI input Dolby Atmos content is vey minimal and I think only LG oled tvs have capability to pass this sound through HDMI ARC. If you have other TVs you need to connect sound bar to source like Xbox directly. But for price it is asking for, not sure why LG provided only one HDMI input. Conclusion: If you are paying full price for this sound bar, you may have better options in market . How ever
Date published: 2018-01-29
Rated 3 out of 5 by from For the price it's so so maybe no For The price you paid the remote could be better maybe bigger with a backlight so you can see....since there's hardly any atmos videos on the market maybe a surround sound effect option on the bar until more atmos videos hit the market? Right now its just a regular sound bar I'm unable to access the atmos option... my discontinued LG bar works alittle better. Thinking I might return the bar. If you buy it keep your receipt and box.
Date published: 2018-01-29
Rated 1 out of 5 by from DOLBY ATMOS NIGHTMARE Purchased 65C7, XBOX ONE X and this SJ9 Soundbar in the past two months due to everything is Dolby Atmos compatible and I wanted to get the most out all the products working together. However, I've had some terrible sync issues w/ xbox one x and apple tv 4k with this soundbar and TV. I cannot receive any Dolby Atmos signal without losing my HDR video. Also, you have to download a separate smart phone app in order to update this SJ9. Any help would greatly be appreciated before I return this product.
Date published: 2018-01-25
Rated 2 out of 5 by from The soundbar that could have been better I have a new LGTVOLED65C7P TV and get 4K programming from Direct TV. This soundbar requires manual intervention whenever I want to switch from Direct TV content to Netflix/Amazon stream programming, which is built into the TV. One would think that the soundbar would be smart enough to understand which input I was using. This soundbar is supposed to be the top of the LG line yet I have to manually switch from HDMI 1 to OPT/HDMI ARC when I want to watch Netflix or Amazon.
Date published: 2017-12-24
Rated 5 out of 5 by from I'm sold Bought this as an early Christmas present for my hubby. We have not been disappointed in the sound quality of this sound bar. We are blown away by the difference this makes. As we are aging much faster than we realized, we noticed difficulty in understanding conversations coming from our tv speakers. Now sounds coming from the sound bar are so clear we found ourselves no longer having to rewind our tv to catch conversations. I would definitely recommend this sound bar
Date published: 2017-12-06
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We're here to support you with our product.

View SJ9 Product Support

Contact us for any support inquiries.


Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

I just bought the Atmos sound bar and was wondering if it will hurt the sound bar if I leave it powered on all the time?

Asked by: MatC
Hello, if the unit is not in use, the unit should go into standby mode to help preserve the life of the product. ^AC
Answered by: Amber C
Date published: 2018-02-13

I am planning to buy SJ9 soundbar for 49SJ800T Television.Is it ok or not? Please advice. SJ9 soundbar will use in India?

Asked by: Murugavel
Hello, we can not advise if it will work as our products are manufactured for use in the USA. ^AC
Answered by: Amber C
Date published: 2018-02-06

Can I add wireless surround rear speakers to augment this system?

Asked by: paultt
Hi Paultt. The owner's manual for this LG 5.1.2 ch High-Resolution Audio Sound Bar with Dolby Atmos, Model # SJ9 has explicit instructions for how you can add additional Music Flow speakers with a LAN (Ethernet) cable or via Wi-Fi to augment the system. The Music Flow speakers are the H3-Model # NP8340, the H5-Model # NP8540, the H7-Model # NP8740, the P5- Model # NP558MC/NP5550* and the P7, Model NP7550*...^IFV
Answered by: LGJoel
Date published: 2018-02-06

When turning unit on volume starts very high. This happens even if you turn speaker down to a lower volume before turning off. How do you fix this?

Asked by: Mikehgo
Hello, we have tested the units we have here and when using Optical (Both with LG Sound Sync on and off) and ARC this does not occur. We will need more information to be able to troubleshoot. Please give us a call at 1-800-243-0000 or drop us a line on Twitter at @LGUSSupport or on Facebook at @LGUSSupport when you are with the unit. ^AC
Answered by: Amber C
Date published: 2018-02-06

Hi Is there any wireless speaker for this, that is Dolby atmos ? I like the Bar but the atmos sound field is limited to the front nothing really happening right above you not to mention behind you.why there is no app that you can adjust the soundfield

Asked by: Johnb19
The LG 5.1.2 ch High-Resolution Audio Sound Bar with Dolby Atmos, is designed with upward-firing speakers that reflect the sound above and behind you for a heightened, three-dimensional soundstage and work best in rooms with flat ceilings up to 11 feet high and made of hard, reflective material. You can add additional MusicFlow speakers to the system, however, they do not support Dolby Atmos...^IFV
Answered by: LGJoel
Date published: 2018-02-05

Can I add speakers to this wirelessly. Like buy an extra subwoofer and speaker to put in my kitchen and connect them to the sj9 soundbar or my LG oled b7 and have them work in unison over Wi-Fi or Bluetooth or something convenient?

Asked by: Kamison
Hello, you can use the LG Music Flow speakers, such as the H3, H4, H5, H7, and the Musicflow App to add wireless speakers. ^AC
Answered by: amber
Date published: 2018-01-31

Does the sj9 sound bar come with a mounting bracket?

Asked by: Elchapo214
Under 'Included Accessories' in the specifications on our product page for the LG 5.1.2 ch High-Resolution Audio Sound Bar with Dolby Atmos, Model # SJ9, it lists a Wall Mount Bracket as an included accessory...^IFV
Answered by: LGJoel
Date published: 2018-01-23

I have recently purchased LG PF1000UW projector. I want to buy SJ9, but I don't know if it will work well with the projector. Will I be able to get all the benefits of Dolby Atmos? I mostly stream movies from Apple TV

Asked by: imitrovic
The LG Ultra Short Throw LED Home Theater Projector with webOS Smart TV and Magic Remote, Model # PF1000UW does not support Dolby Atmos nor Dolby Atmos pass through so you will not get any benefits for Dolby Atmos when you connect it to the LG 5.1.2 ch High-Resolution Audio Sound Bar with Dolby Atmos, Model # SJ9...^IFV
Answered by: LGJoel
Date published: 2018-01-18
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