LG SL9Y 4.1.2 Channel 500W Sound Bar w/ Meridian Technology & Dolby Atmos
  • 4.1.2 Channel & 500W
  • Dolby Atmos® & DTS:X
  • Google Assistant built-in
  • Chromecast Built-In
  • High Resolution Audio (24bit/96kHz)
  • Wireless Rear Speaker-Ready
  • Usually ships within 2 business days*
  • FREE Shipping

*Shipping options may vary by region.

LG SL9Y 4.1.2 Channel 500W Sound Bar w/ Meridian Technology & Dolby Atmos
$ 799.99
Add to Cart
CES Innovation Awards 2019 Honoree1

CES Innovation Awards 2019 Honoree

The CES Innovation Awards are presented to latest products that we've selected as the best examples of engineering, design and innovation for CES 2019.
CES Innovation Awards 2019 Best of Innovation1

CES Innovation Awards 2019 Best of Innovation

The CES Innovation Awards are presented to latest products that are selected as the best examples of engineering, design and innovation for CES 2019. The Best of Innovation is given to only the highest-rated product or technology in each category.
*Compatible with select LG TVs.
*Service limited to certain languages. Some features require 3rd party service subscriptions.
*Requires compatilble content and HDMI passthrough from a compatible source device.
*Dolby Atmos requires HDMI passthrough from a Dolby Atmos-compatible source device. Dolby, Dolby Atmos and the double-D symbol are registered trademarks of Dolby Laboratories.
*Compatible high-resolution music files required, sold separately.

Feel audio from every direction.

Expand your surround sound with two additional wireless speakers in the mix. 2.0ch Rear Speaker Kit expansion delivers audio from behind you for true physical depth of immersive, surround sound in a wall-mountable design.
Feel audio from every direction.1 Feel audio from every direction.2

Surround Sound Expansion

Upgrade to a truly cinematic surround audio experience. This optional kit (SPK8-S) includes a receiver unit that links wirelessly to compatible LG Sound Bars, then connects to a pair of supplied speakers that can be placed behind the listener.

Surround Sound Expansion1


  • Dolby Atmos
  • Google Assistant Built-in
    High Resolution Audio
    Up to 24bit/192kHz
  • 24-bit Upsampling
    Hi-Fi DAC
  • 4K Passthrough (HDCP 2.2)
    Group Play Mode
    Yes (Chromecast)
  • Multi-Room Mode
    Easy Setup with BLE
  • Chromecast Built-in
    Wireless Surround Sound Ready
    Yes (SPK8-S)
  • Bluetooth Streaming
    DTS Virtual:X
  • Meridian Audio Technology
    Works with the Google Assistant
  • USB Playback


  • Channels
    Total Power


  • TV Remote Compatibility
    Smartphone Remote App (iOS/Android)
  • Easy Setup with BLE
    Auto Volume Leveler
    Yes (In App)
  • Audio Return Channel (ARC)
    Dynamic Range Control
    Yes (In App)
    Firmware Over-the-air (FOTA)
  • Night Mode
    LCD Display Auto-Dimmer


  • ASC (Adaptive Sound Control: Default)
  • Music
    Bass Blast
  • Bass Blast +
  • DTS:X
    Dolby Atmos


  • LPCM
    Dolby Atmos®
  • Dolby TrueHD
    Dolby Digital Plus
  • Dolby Digital
    DTS Digital Surround
  • DTS-HD Master Audio
    DTS-HD High Resolution
  • DTS:X
    FLAC (Up to 192kHz) C4A / USB
    Yes / X
  • OGG (Up to 48kHz) C4A / USB
    Yes / Yes
    WAV C4A / USB
    Yes / X
  • MP3 C4A / USB
    Yes / Yes
    Yes / Yes
  • AAC / AAC+


  • Front
    50W x 2
    40W x 2
  • Top
    50W x 2


  • Wi-Fi
    Wireless Active Subwoofer
  • Bluetooth
    Yes (4.2)
    LG TV Sound Sync (Bluetooth)
  • LG TV Sound Sync (Optical)
    Optical Input
  • USB
    HDMI 2.0 (HDCP 2.2) Out
  • HDMI 2.0 (HDCP 2.2) Input


  • Soundbar Power Consumption
    Soundbar Standby Power Consumption
  • Subwoofer Power Consumption
    Subwoofer Standby Power Consumption


  • TV Matching
    55" and above
    Sound Bar (WxHxD)
    48.03" x 2.2" x 5.7"
  • Subwoofer (WxHxD)
    8.7" x 15.4" x 12.3"
    Soundbar Net Weight
    13.9 lbs
  • Subwoofer Net Weight
    16.8 lbs
    Shipping Size (WxHxD)
    50.6" x 11.2" x 18.4"


  • Remote Control
    Yes (AAA)
  • Optical Cable
    Wall Mount Bracket
  • Cable Management
    Warranty Card


  • Limited Warranty
    1 Year Parts & Labor
What people are saying
Rated 5 out of 5 by from Totally Fills My Apartment with Sound Having just set up the LG SL9Y in my apartment and running it through various audio such as movies, TV, video games, and streaming music, I can honestly say this is the best sounding sound bar I have ever heard. The way it fills the room makes it seem like the sound is coming from more than just the bar itself, and it has a wonderful full and rich sound. It also looks great, and fits in front of my 65" TV perfectly, which brings a wonderful ascetic to my setup. My only real complaint is with the setup. The directions were a bit limited, and I couldn't get it to connect to WIFI when running the app. This is needed to setup the Google Assistant and allows you to connect through blue tooth. It kept searching, but wouldn't pair, and eventually gave me a website to go to for more help, but the website didn't provide any additional information. After many tries of unplugging it and plugging it back in, I eventually uninstalled the Google Home app, restarted my phone, and reinstalled the app and it connected on the first try. Once it was connected, the sub automatically connected and I was on my way. I would definitely recommend this sound bar to anyone that is looking for a sleek design and great sound for their media!
Date published: 2019-08-14
Rated 4 out of 5 by from Great Mid-Range Sound Bar The LG SL9Y is a solid sound bar that will be more than sufficient for the majority of users. Lets go through the pros and cons. Pros: 1. Great range - This sound bar has very good frequency range, much better than some of its competitors. Movies sound very clear and balanced. It is easier to distinguish notes when listening to music. The inclusion of a sufficiently powered subwoofer completes the range at the low end. 2. Quick Input Change - This sound bar supports multiple inputs (wi-fi, bluetooth, HDMI ARC, USB) and it can change between each in only a few seconds. When I have people over I often will change between TV audio and music regularly. In only about 2-3 seconds this sound bar will go from playing TV audio to streaming audio from Spotify. My previous sound bar would take more than 10 seconds and often would encounter some error that would require a reboot to function again. 3. Design - I really like the look of this sound bar. It isn't very tall but it is wide (as you can see from my pic). I have received many compliments from guests on its look and how it matches with the rest of my setup. 4. Sound Effect - The LG SL9Y has five "sound effects"; bass blast, standard, movie, music and ASC. Each one is very distinct from the others and offers a nice range of choices. The two I use the most are movie and music. Movie has a little more low end and music prioritizes highs. It would be even better if LG also allowed users to have an eq control (the app does allow you to control treble, bass and subwoofer levels) but there is enough differences in the sound effects to satisfy most people. Cons: 1. Dolby Atmos - This speaker has two top firing speakers and two side firing speakers. The top speakers do add a very nice vertical sound stage to dolby atmos supported content. However, I don't get anything from the sound firing speakers. Perhaps its because I have it in a recessed area for my entertainment center. 2. Connectivity issue - This might not be a one off issue that I encountered but when I originally set this sound bar and subwoofer up, the subwoofer would randomly drop sound for 2 seconds every couple of minutes. I contacted LG support and they total me to reset the sound bar and it has worked great ever since. Conclusion: This is a really good product and if you can find it on sale, I would highly recommend that you pick it up.
Date published: 2019-07-24
Rated 5 out of 5 by from Full and Immersive Sound I've owned the soundbar, as well as the rear speaker kit, for about 3 weeks now. The sound is wonderful when watching films, television, and playing video games. I would recommend the set. I also own a LG OLED television and they play quite well together. Using the optical audio cable and an HDMI cable, there is dual control and they power on/off together.
Date published: 2019-07-01
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Ask your questions. Share your answers.
Please review the detailed product information and help guides in the
Product Support section for this product prior to posting a question.

What exactly are the channels on a 4.1.2? The 4 is a center, right left, and what else?? I know the .1 is the subwoofer and the .2 is the Atmos ceiling facing speakers. But what is the 4th channel?

Asked by: Robulus101
As with traditional Soundbar designs, a Dolby enabled Soundbar will incorporate left and right primary speakers and may include a center speaker and even surround speakers located on the sides of the Soundbar. The [4] in the 4.1.2 configuration of the LG SL9Y 4.1.2 Channel 500W Sound Bar w/ Meridian Technology &amp; Dolby Atmos, Model # SL9YG is referring to the two primary speakers and the two surround speakers in the bar...^IFV
Answered by: Ivanf
Date published: 2019-07-09

I have a 4K LG Nano cell TV and I was thinking of getting this sound bar. Is it best to hook it with an Optical Cable or an HDMI cable for the best sound quality and to take adventage of all the features?

Asked by: Nathaniel_04
The LG SL9Y 4.1.2 Channel 500W Sound Bar w/ Meridian Technology &amp; Dolby Atmos, Model # SL9YG supports Dolby Atmos&reg; &amp; DTS:X and both those are only supported through your HDMI ports. You will need to connect the Soundbar through the HDMI In 2 / ARC on your 4K LG NanoCell TV (or HDMI In 2 / eARC if it supports eARC)...^IFV
Answered by: Ivanf
Date published: 2019-07-08

Will this sound bar hook up with my C8?

Asked by: RJsdad313
There are three ways by which you can connect this LG LG SL9Y 4.1.2 Channel Sound Bar w/ Meridian Technology &amp; Dolby Atmos, Model # SL9YG to your LG C8PUA 4K HDR Smart OLED TV w/ AI ThinQ&reg; TV. You can pair it to the TV using Bluetooth, or you can connect its HDMI Out to the TVs HDMI 2/ARC port or you can use its Optical Digital Audio Input to connect it to the TV's Optical Digital Audio Out...^IFV
Answered by: Ivanf
Date published: 2019-05-28

will the LG tv pass thru my stereo system without problems?

Asked by: JoewR
Regrettably, we are not clear on your inquiry about if the LG TV will pass through your stereo without problems. Which LG TV do you have, what is the model number? The LG SL9Y 4.1.2 Channel Sound Bar w/ Meridian Technology &amp; Dolby Atmos, can be connected to a TV in one of three ways. It supports Bluetooth, so if the LG TV that you have also supports Bluetooth, you can pair it with the Soundbar for a wireless Bluetooth connection. If your TV has an HDMI ARC port on it, you can connect that to the HDMI ARC port on the Soundbar, and you also have the option of connecting the TV's Optical Digital Audio Out to the Optical Digital Audio In on the Soundbar...^IFV
Answered by: Ivanf
Date published: 2019-05-09

Does the 4k Passthrough include dolby vision passthrough?

Asked by: Atlas3686
Regardless of whether a video signal is carrying HDR10 metadata or Dolby Vision metadata, 4K Pass-Thorugh is a feature on the LG SL9Y 4.1.2 Channel Sound Bar w/ Meridian Technology &amp; Dolby Atmos, Model # SL9YG that will allow the video source to pass unaffected through the Soundbar to a 4K TV without any processing as long as the HDMI ports on the 4K TV are HDCP 2.2 compliant...^IFV
Answered by: Ivanf
Date published: 2019-04-18

When is&nbsp;SL9YG soundbar going to be available?&nbsp;

Asked by: Hseperas
LG announced through a Press Release dated March 26, 2019, that the LG SL9Y 4.1.2 Channel Sound Bar w/ Meridian Technology &amp; Dolby Atmos, Model # SL9YG will be available in the week of May 27, 2019...^IFV
Answered by: Ivanf
Date published: 2019-04-02

Will this soundbar or any of the 2019 Soundbars support HDMI 2.1? I want to stream Atmos from the 2019 LG TV&rsquo;s native Netflix apps.

Asked by: Kyle Smith
Your interest in the LG 4.1.2 ch High Res Audio Sound Bar w/ Meridian Technology &amp; Dolby Atmos&reg;, Model # SL9YG is greatly appreciated. Regrettably, this Soundbar has not yet been released and is currently not available and we do not have the specifications to verify what type of ports it will feature. Please stay tuned to the product information page, the full specifications will be available soon and we will update the product page to reflect its full specifications...^IFV
Answered by: LGJoel
Date published: 2019-03-08

What does it mean coming soon? 1st, 2nd quarter of 2019? How can we be updated about these 3 models? I need to know if I will buy the 2018 model or it's worth waiting for the new ones...

Asked by: Remus_Sorin
The LG 4.1.2 ch High Res Audio Sound Bar w/ Meridian Technology &amp; Dolby Atmos&reg;, Model # SL9YG like our other 2019 products are currently in production and at this time, we will not have a timetable for when the information for release dates, availability, and pricing will be announced. As production for these products nears completion, LG will put out a Press Release announcing pricing, availability, and release dates and that is when we will have the pertinent information to share with you. Thank you for your interest in our products and for your patience and understanding...^IFV
Answered by: LGJoel
Date published: 2019-02-11
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