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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.



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.

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
TV Matching 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 Stunning Partner for LG B6 55” OLED TV Everything works straight out of the box. Simple set up and incredible sound. I would recommend it as a fabulous addition to any LG OLED.
Date published: 2017-06-26
Rated 1 out of 5 by from Doesn't Work (I'm not the only one) I just returned my second SJ9. I have the same setup as some of you, 65 E6 with and Xbox One S. No go, i tried $100 worth of cables, software updates. Resets. EVERYTHING. Nothing worked, constantly having HDMI issues. If and when I could get a UHD HDR disc to play through, I wouldn't have ATMOS. If I was able to get ATMOS, HDR wouldn't work, it would take upwards of 15 seconds to get a signal. Half the time it said "Invalid Signal". Mainly it was just a bunch of white screes, pink screens and the occasional flashing white triangles. Yes, I was using certified cables. I tried different inputs. Nothing worked. I'm over it. When I could hear it, it was amazing. Disappointed in LG. This thing worked 10 percent of the time, and even then not correctly. Total time invested: 4 hours.
Date published: 2017-05-18
Rated 5 out of 5 by from outstanding we bought this sound bar for our LG SUHD 65" TV and WOW it linked right up the first time.the sound from this bar is outstanding very clear and clean sound even voice is clear and there is plenty of power from this beast the bass shakes our wood floors just set at 2 we watched a 4k movie and this thing comes to life the display even tells you that Dolby Atoms is playing no guess work even there, it set up right away with no complex garbage to deal with various sound modes to could have used another HDMI port but we just have it ran from our 4k player so not an issue for us overall an outstanding soundbar.
Date published: 2017-04-26
Rated 5 out of 5 by from An absolute fantasy of sound. I purchased the LGSj9 soundbar to accompany the OLEDLG65B7P that was to be delivered in 2 weeks. Until then I use the LGSj9 soundbar as a home stereo with my computer and Iphone for "Spotify" and other music stations. The experience and listening pleasure was absolutely phenomenal. The 500 watts of sound was crisp and clear and the multitude of music modes enhanced the experience beyond measure. Yes, so impressed that I dumped my "other stereo" that I found had no more use in my home. Now comes the good part.... hooked it up to my OLED65B7P and the television and movie experience is well, in a word, outstanding.... there is nothing to compare to this unit. Yes, I did look at another unit, that would only run on wifi and if your wifi went out... not good. That "other" unit was a few hundred dollar more because of the subwoofer but in comparison to the LGSj9, which has a far superior subwoofer... there was no question. LGSj9 has by far the best sound and yes, a few hundred dollars cheaper. Wifi, bluetooth, or whatever you have, this baby will handle it.
Date published: 2017-04-24
Rated 3 out of 5 by from A Great Concept but lacking HDMI Ports So I am glad that LG is finally coming out with a soundbar that matches the quality of the TV's they make. An Atmos soundbar that matches the 75UH8500 TV is fantastic, provided it passes DT:X, which I don't see in the specs. Also a major drawback is the number of HDMI ports. According to the picture, it only has 2, an in and an out. That is not enough as most people need at least 3 due to cable boxes, Blu Ray players etc.. I would gladly swap my new Yamaha YSP-2700 for this one.. Provided they could come up with a solution for the lack of ports. In order to get the most out of the sound bar, all devices need to pass through the bar , then ARC to TV.....
Date published: 2017-01-10
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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 have connected my LG C7 to the SJ9 via the optical connection. Does this support ATMOS or do I instead need to connect it via HDMI?

Asked by: SCOTT10501
The SJ9 does support Dolby Atmos, however, it is only available via the HDMI IN connection on the sound bar and ARC mode. For more information on Dolby Atmos, please refer to page 17 of the owner's manual.
Answered by: NeilE
Date published: 2017-07-13

Let's say I have 43UJ6300 and UP970. Question 1: Are these right connections, if I only want to hear UP970 from SJ9 Sound Bar?: 1. From UP970's HDMI 2.0a > 43UJ6300. 2. From UP970's HDMI 1.4 > SJ9 Sound Bar's HDMI In. Can I listen Dolby Atmos from UP970?

Asked by: fbserda
Unfortunately not. The reason why is the UP970 doesn't support Dolby Atmos at this time.
Answered by: NeilE
Date published: 2017-07-11

Does this only work with an LG TV or can I set it up with an Epson projector as well? I was wondering if I could use this for a home theater

Asked by: Harshith
The LG 5.1.2 ch High Resolution Audio Sound Bar with Dolby Atmos, Model # SJ9 is a Bluetooth enabled device (Bluetooth ver. 4.0) that you can pair your Bluetooth enabled smartphone, PC or any other device that you can pair it with and stream audio to via Bluetooth. It has an Audio Return Channel (HDMI ARC) that you can use to connect to any device that supports the HDMI ARC function to send audio upstream or downstream. It also has an HDMI IN and an Optical Digital Audio In that you can connect to compatible devices...^IFV
Answered by: LGJoel
Date published: 2017-07-07

Can you add rear surround speakers ? If so, how ?

Asked by: Jamie Mayer
The LG 5.1.2 ch High Resolution Audio Sound Bar with Dolby Atmos, Model # SJ( does not have any connections that allow you to physically additional speakers to it, but as a music flow product, when setting up the LG 5.1.2 ch High Resolution Audio Sound Bar with Dolby Atmos, Model # SJ9 for the first time, you can choose two types of connection, Wired connection (Music Flow Mesh Network Connection) or Wireless connection (Standard Wireless Connection). With the Wired connection (Music Flow Mesh Network Connection), you can connect the SJ9 to your home router using a LAN (Ethernet) cable then connect additional Music Flow products like the LG Music Flow P5 Portable Bluetooth Speaker | Strap Accessory Edition, Model # NP5558MC, wirelessly to your home network as additional speakers. The Wireless connection (Standard Wireless Connection) allows you to connect to your router wirelessly to the SJ9 and then as above, you can connect additional Music Flow products to your home network...^IFV
Answered by: LGJoel
Date published: 2017-07-06

I have a Xbox One S with 4k bluray dvd's that have Dolby Atmos with a LG 65UF8600 tv. Will the Dolby Atmos work in the SJ9 with the set up that I have?

Asked by: JesusS
Hope this helps. I just bought the sj9. I too have a xbox one, with a LG 60UH7700. It seems to work rather well.
Answered by: Jamie Mayer
Date published: 2017-07-06

I hv a 2016 Oled 4K 55 in lg hooked up to the sj9 sound bar via the supplied optical cable. There is a delay in the sound from the picture. So when the actor speaks you see their mouth move but the words are delayed. I tried multiple settings in the sound

Asked by: Smb29
We appreciate your interest in this Audio System. This model is designed with a button for AV SYNC. This is designed to adjust the delay time between the audio and video. Press this button on the controller, and then use the |<< and the >>| controls to adjust the delay between 0 and 300ms. This information is on page 57 of the owner’s manual.
Answered by: NeilE
Date published: 2017-06-07

Does the sj9 sound bar put out atmos on the 2016 lg oled tv line?

Asked by: Haugsby
The LG 5.1.2 ch High Resolution Audio Sound Bar with Dolby Atmos® , Model # SJ9 supports Dolby Atmos, but the 2016 LG OLED TVs do not have a Dolby Atmos® Decoders so they cannot send the information to the Sound Bar...^IFV
Answered by: LGJoel
Date published: 2017-06-05

So my 75uh8500 won't sapport dolby atmos,do you sell a hd blu ray player that does sapport it

Asked by: Weddo602az
The LG 4K Ultra HD Blu-ray Disc™ Player with HDR Compatibility, Model # UP970 is also compatible with a variety of leading sound formats, including Dolby True HD, Dolby Atmos and DTS-HD Master Audio...^IFV
Answered by: LGJoel
Date published: 2017-05-15
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