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2.1 ch High Resolution Audio Sound Bar

  • SJ4Y

Key Features

  • High Resolution Audio
  • Wireless Surround Ready*
  • Bluetooth Streaming
  • Adaptive Sound Control (ASC)
  • LG Sound Sync
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/96kHz quality.

Wireless Surround Ready

Wireless Surround Ready

This upgradeable sound bar has been designed to accept optional wireless surround speakers (SPJ4-S kit sold separately), adding the premium cinema experience of dedicated rear channels, with wireless convenience.

Learn More


Surround Sound Expansion

Upgrade to a truly cinematic surround audio experience. This optional kit (SPJ4-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 Expansion
Adaptive Sound Control

Adaptive Sound Control

For maximum enjoyment of various types of programming (movies, sports, games, etc.), LG-exclusive Adaptive Sound Control can automatically detect what’s playing and then enhance the clarity and impact of the audio.

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.

Bluetooth Connectivity

Bluetooth Connectivity

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

Wireless Subwoofer

Wireless Subwoofer

An outboard wireless subwoofer can drastically improve the cinematic audio experience, adding room-shaking bass to movies and more.

High Resolution Audio Up to 24bit/96kHz
Wireless Surround Sound Ready Yes
Bluetooth Streaming Yes
Adaptive Sound Control (ASC) Yes
Sound Sync Wireless Yes
HDMI In/Out Yes
Wireless Active Subwoofer Yes
Soundbar Mode - Channels/Power 2.1ch
Total Power 300W
Bluetooth Remote App (Android) Yes
Bluetooth Stand-By Yes
Auto Music Play (BLE) Yes
Audio Return Channel (ARC) Yes
Adaptive Sound Control (ASC): Default Yes
Standard Yes
Bass Blast Yes
Cinema Yes
Dolby Digital Yes
Front 60W x 2
Subwoofer 180W
Wireless Active Subwoofer Yes
Bluetooth (ver. 4.0) Yes
LG TV Sound Sync (Bluetooth) Yes
LG TV Sound Sync (Optical) Yes
HDMI 1.4 Out 1
HDMI 1.4 In 1
Optical Input 1
USB Host Yes
Portable Audio In (3.5mm) Yes
Soundbar Power Consumption 20W
Soundbar Standby Power Consumption Less than 0.5W
Subwoofer Power Consumption 33W
Subwoofer Standby Power Consumption Less than 0.5W
Recommended TV Size 40" and above
Sound Bar (WxHxD) 35" x 2.2" x 3.4"
Subwoofer (WxHxD) 6.73" x 12.6" x 9.92"
Soundbar Net Weight 5.3 lbs.
Subwoofer Net Weight 9.3 lbs
Shipping Size (WxHxD) 38.7” x 16.4” x 8.5”
Shipping Weight 19.2 lbs.
Remote Control Yes
Batteries Yes (AAA)
Optical Cable Yes
Wall Mount Bracket Yes
Limited Warranty 1 Year Parts and Labor
UPC 719192609563

What People Are Saying

Rated 5 out of 5 by from Outstanding Sound & Value!!! I recently purchased a new 65” UHD TV and all I needed was a great sound to match the great picture. I researched many sound bars and went with the LG for the value, features, and build quality. It gave me at least 5 options to connect to my TV, I eventually settled on the HDMI ASC out. It also give me at least 4-5 options to connect to other devices depending upon the device type. Not to mention, it also has a USB slot. The set-up was easy, straight forward, and intuitive. The ASC (Adaptive Sound Control) is impressive; it automatically detects the difference from voice, music, and movies. I get a really rich sound with music and movies as the wireless 180w bass subwoofer kicks in with a really deep, and powerful bass sound. More than adequate and never out of control, it sounds like a much more expensive product for the money paid. I have not paired it with my Bluetooth music devices yet because I have other speakers fo that. But I am sure it is more than up for the task if needed. The fact that I can later add the 120w the rear speaker kit is icing on the cake. The speaker bar remote is simple and setting up the sound bar to automatically cut on and off with all of my connected systems (Blu-Ray, Cable Box, and Gaming Devices) was easy.
Date published: 2017-12-31
Rated 3 out of 5 by from good value bought this to get bettet soubd with bass.. not a very good power sub woofer
Date published: 2017-12-14
Rated 3 out of 5 by from Sj4y What sound is great. However yeah, I have noticed the sound cuts out every now. it is connected to an LG TV, so I assume it is compatible. I would have rated it much higher if it wasn't for the intermittent periods when the sound cuts out
Date published: 2017-12-09
Rated 4 out of 5 by from good sound wasn't sure how well the wireless soundbar/woofer system would work, but fidelity is quite good!
Date published: 2017-11-10
Rated 4 out of 5 by from Deep sounds Great sound for the money. The bass is deep and clean. This system compliments the LG Smart television I purchased nicely!
Date published: 2017-11-08
Rated 4 out of 5 by from Good but didn't fix my problem I have an LG 55UH7700 TV. It is a year old higher end 4K TV. I have it in a 13 by 19 foot room. Voices are muffled. I like LG products - washer, dryer, TV, etc. so I thought, why not buy their sound bar to go with my TV? Did not fix the problem. Although, the remote has buttons for different settings for movies and things, none of them fixed my problem. Talked to LG customer support about getting the optional back speakers. Thought was, even with the back speakers, this did not generate enough sound to fill my room. So although my room is too big, I liked the soundbar and the customer support.
Date published: 2017-10-29
Rated 5 out of 5 by from Really adds quality to action movies. Very enjoyable. Glad i made the decision to get my LG Sound Bar.
Date published: 2017-10-24
Rated 5 out of 5 by from Great Soundbar First of all, it works! Setup is a breeze. No messing around pairing, etc. The soundbar is beautifully designed and made from quality materials. I purchased this on 10/15/17 to replace another one that gave me nothing but problems. The sound is excellent and clear. I love this soundbar. Some others have little exrras, etc but LG lives up to its motto. Life is Good!
Date published: 2017-10-16
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We're here to support you with our product.

View SJ4Y 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.

Hello, sound cuts in and out. Is there software updates for this device

Asked by: web79
Sorry to hear the sound is cutting in and out. The most recent updates can be found here: ^AC
Answered by: amber
Date published: 2018-01-08

Besides the wireless rear speakers kit, is there another rear speakers (wired) option?

Asked by: Gtone
This unit does not have that function. ^AC
Answered by: amber
Date published: 2017-12-23

Sound volume not very loud 

Asked by: Jiff
It sounds like we'll need to walk through some troubleshooting for your soundbar. Please head over to our support team via @LGUSSupport on Twitter so that we can dig into this a little more for you. ^CP
Answered by: ChrisPSM
Date published: 2017-12-13

What is the subwoofer size?

Asked by: MikeyCBus
Subwoofer (WxHxD) is 6.73" x 12.6" x 9.92" ^AC
Answered by: amber
Date published: 2017-12-11

The person's lips on tv does not sync with the sound. Anyone experience this problem and if so what is the resolution. Just bought and thinking of returning due to this.

Asked by: Terry123
It sounds like we'll need to walk through some troubleshooting for your TV and home audio settings. Please head over to our support team via @LGUSSupport on Twitter so that we can dig into this a little more for you. ^CP
Answered by: ChrisPSM
Date published: 2017-12-07

pairing a wireless headphones to LG SJ4Y soundbar

Asked by: Becky123
Check out this easy set up link. ^AC
Answered by: amber
Date published: 2017-11-16

How far away from a wireless router does the subwoofer need to be?

Asked by: Aceras2
The main unit for the LG 2.1 ch High Resolution Audio Sound Bar, Model # SJ4Y is the unit connects to your wireless router via Wi-Fi and it is recommended that the soundbar and the subwoofer be kept over 1 m (33 feet) away from the router or devices like your microwave to prevent wireless interference...^IFV
Answered by: LGJoel
Date published: 2017-11-14

can i get another subwoofer only to add some extra power

Asked by: Phenomenal 1
We appreciate your interest in this sound bar. It would not be possible to add another subwoofer.
Answered by: NeilE
Date published: 2017-12-19
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