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Key Features

  • Dolby Atmos
  • High Resolution Audio
  • Chromecast Built-In
  • 4K Passthrough (HDCP 2.2)
  • Hi-Fi DAC
  • 24-bit Upsampling
See Retailer for Pricing
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.


What People Are Saying

Rated 3 out of 5 by from Dumb design Ok sound but the speaker bar blocks the IR signal from the remote to the LG OLED TV. I had to install an IR Blaster to work around the problem.
Date published: 2018-08-08
Rated 4 out of 5 by from Needs surround speaker compatibility I purchased my sj9 atmos soundbar last spring (unaware what i was truly looking for would be released the following year), and although i truly love it, due to some misinformation on the part of both LG and the retailer i was led to believe id be able to expand with rear channel speakers in the future. After much confusion i found that not to be the case. For a stand alone soundbar it cant be beat in my experience for movies, I only wish id know about the soon to come SK10.
Date published: 2018-07-21
Rated 1 out of 5 by from Constant "Not Supported" Messages When it works it's amazing, however no matter what I'm watching (xbox one x, tivo, anything via HDMI), it will occasionally slip out of 5.1 and grind to a halt while displaying NOT SUPPORTED and then snapping back. It happens every 5-50 minutes, but when it does it totally takes you out of whatever you're watching or playing. On top of that, when you first turn everything on there's no audio. Video passes through fine but not video. You either have to turn everything off again or log into the Soundbar with the app and turn DRC off and on a few times until the audio restores (I keep it off by default). Super disappointing, I wish I had never purchased it.
Date published: 2018-07-17
Rated 5 out of 5 by from Worth the cost I bought this several months ago to pair with my 75" 4K Smart TV and I couldn't be more impressed. Connected by HDMI (ARC), the sound is crisp and with the wireless subwoofer...movies and music sound great!
Date published: 2018-07-11
Rated 5 out of 5 by from Love this so far, just need a remote.... We bought this sound bar at open box but there is no remote with it. How do we get one? So far we love this sound system!
Date published: 2018-06-11
Rated 4 out of 5 by from Great so far I bought this ad a demo, hooked up to my Xbox one s and no atmos. However, after updating the software the atmos signal popped up on the screen and made a difference. Only con I have is I wish it had more hdmi ports. Still pleased with it and can be extremely loud.
Date published: 2018-05-28
Rated 5 out of 5 by from ALL AROUND GREAT SOUND BAR !!!!!!! The sound quality if far greater than I imagined and it is easy to use. It has a lot more muscle than you would expect in a sound bar. LG has cracked the code on giving the customer a great audio experience.
Date published: 2018-04-09
Rated 1 out of 5 by from expectation not met poor quality I have had issues with this sound bar from day one. It does not sync with my LG c7 tv. Not able to use the atmos feature or the 4K pass through. The voices are off sync and I loss sound completely during movies and gaming. Must restart complete system to get sound back.
Date published: 2018-03-05
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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.

My SJ9 just recently stopped streaming from my desktop computer. The bluetooth is on. I don't know how to fix it, although the pairing is even succesful.

Asked by: AmirH
Hello, please un-pair the devices, forget the device and go through the pairing process again. If the does not work, please contact us at 1-800-243-0000. ^AC
Answered by: Amber C
Date published: 2018-09-23

I can't seem to get a straight answer to a simple question. Can you use any Music Flow speakers (M-Series or P-Series) as rear channel speakers for a LG SJ9 soundbar? The in store LG rep says YES, online LG chat says NO and the internet says MAYBE.

Asked by: Siege
The LG 5.1.2 ch High-Resolution Audio Sound Bar with Dolby Atmos, Model # SJ9 is a Music Flow unit and can be connected to your home network as detailed on pages 23 - 30 in your owner's manual. Page 31 has explicit instructions on how to connect additional music flow speakers to this so you can use them as rear channel speakers with the SJ9. You can use any of the Music Flow speakers, Model # NP8340 (H3), Model # NP8540 (H5), Model # NP5550* (P5), Model # NP8740 (H7), Model # NP7550* (P7)...^IFV
Answered by: LGJoel
Date published: 2018-06-28

Where could I get a remote? We bought this at open box and we love it but it did not come with a remote.....

Asked by: sherryRock
Hello and thank you for contacting LG. Please see the provided link for the remote belonging to the SJ9. ^AC
Answered by: Amber C
Date published: 2018-06-12

This is called a 500Watt system and shows 5 X 43 watts speakers plus 200Watt sub-woofer = 415Watt. What happened to the other 85 watts?

Asked by: Saatdhaan
The Total Power (RMS Output) for this LG 5.1.2 ch High-Resolution Audio Sound Bar with Dolby Atmos, Model # SJ( breaks down as Front - 43 W RMS x 2 (4 Ω at 1 kHz, THD 10 %)/ Center - 43 W RMS (4 Ω at 1 kHz, THD 10 %)/ Surround - 43 W RMS x 2 (4 Ω at 1 kHz, THD 10 %)/ Top - 43 W RMS x 2 (4 Ω at 1 kHz, THD 10 %)/ Subwoofer - 200 W RMS (3 Ω at 80 Hz, THD 10 %). If you add that up, you have 86W + 43W + 86W + 86W + 200W = 501W. What the 5.1.2 description in the model number means is that the [5] refers to the number of traditional surround speakers (front, center, and surround). The middle number, [.1] refers to how many powered subwoofers you can connect to your receiver and the final number [.2] refers to how many in-ceiling or upward-firing speakers are in your Dolby Atmos® setup...^IFV
Answered by: LGJoel
Date published: 2018-06-26

Hallo, can the Lg sj9 Soundbar passthrough HDR/HDR10 and Dolby Vision Conntet to my LG OLED 2017 Tv ??? And if so why i cant find any Info about it on the Product Page ??? I want to use Dolby Vison an my TV and Dolby Atmos on the Soundbar!

Asked by: Tay2018
On its product information page on our site,, the key features indicate that the LG 5.1.2 ch High-Resolution Audio Sound Bar with Dolby Atmos, Model # SJP has 4K Passthrough (HDCP 2.2). HDR10 uses “static” metadata and Dolby Vision uses “dynamic” metadata" which is carried in a 4K signal in video content that has been mastered for those HDR standards. You will need HDMI 2.0a and High-Speed HDMI Cables that can carry 4K signals. Some earlier cables do not have the bandwidth to carry a 4K video signal or the ability to transmit HDR data. If you have the wrong cables, the 4K HDR content coming from your video source will not be passed on to your TV screen. If you want 4K resolution with or without HDR, you need High-Speed HDMI cables. Just keep in mind that just because all High-Speed HDMI cables should transmit 4K at 60 fps with HDR, doesn't mean that they all do. Cables wear out so the older a cable is, the more likely it is to have developed a flaw that inhibits 4K HDR performance. Cheaply made cables are more likely to wear out more quickly. If you bought your cables after 2009, they will likely transmit 4K resolution and HDR. If you bought your cables after 2009, they will likely transmit 4K resolution and HDR. If you want to be sure you're getting the best possible performance, buy cables that specify Premium High-Speed HDMI on the packaging...^IFV
Answered by: LGJoel
Date published: 2018-10-24

Music Flow speakers, such as the H3, H4, H5, H7 for my SJ9. Where can I buy? Any other solutions wireless.. for Dolby Atmos experience..

Asked by: shankarj6
I have two H7s in my current  setup. My setup consists of Oled65c7, Sj9 connected through ARC port, Xbox One X, the two H7s for rear using wifi connection , and the music flow app on my iPhone. I purchased both through Amazon. I periodically have to reconnect H7s on music flow app (maybe once a month) but other than that they work great. 
Answered by: OscarT
Date published: 2018-05-07

I have my OLED65C7P connected to SJ9 using an optical cable. Does Dolby ATMOS not come through to SJ9 because I’m using optical cable?

Asked by: Shak from PIT
Correct! Dolby atmos only passes through a HDMI with 2.2 . Optical provided will NOT pass Atmos! Also has to be in the Arc HDMI and tv should be updated to fix the pass through by issue.
Answered by: Mac mall
Date published: 2018-04-20

I am reluctant to purchase this product because there are no Bluetooth rear satellite speakers available that is compatible with the SJ9 soundbar. Will there ever be? What about the upcoming newer soundbars?

Asked by: newseed
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 C
Date published: 2018-09-03
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