320W 2.1ch Sound Bar Audio System with Wireless Active Subwoofer and Bluetooth Connectivity


  • 2.1 Channel
  • Bluetooth®
  • Sound Sync Wireless
  • Wireless Subwoofer
320W 2.1ch Sound Bar Audio System with Wireless Active Subwoofer and Bluetooth Connectivity


    • Channels
    • 2.1
    • Total Power
    • 320 Watts


    • Bluetooth Remote App (Android)
    • Yes
    • Bluetooth Stand-By
    • Yes
    • Bluetooth multi-phone pairing
    • Yes, max. 3
    • Universal Search
    • Yes
    • Music Curation
    • Yes
    • Auto Volume Leveler
    • Yes
    • Audio Return Channel (ARC)
    • Yes
    • Dynamic Range Control
    • Yes
    • 3D Video Pass
    • Yes
    • Yes
    • Music Flow Bluetooth App (iOS/Android)
    • Yes


    • Front
    • 60Wx2 (tweeter x 2)
    • Subwoofer
    • 200W (wireless)


    • Flat
    • Yes
    • Boost
    • Yes
    • Treble/Bass
    • Yes
    • Cinema
    • Yes
    • Standard
    • Yes
    • User EQ
    • Yes
    • Music
    • Yes


    • LPCM
    • Yes
    • Dolby Digital
    • Yes
    • DTS Digital Surround
    • Yes
    • MP3
    • Yes
    • WMA
    • Yes
    • FLAC
    • Up to 192kHz
    • OGG
    • Up to 48kHz
    • WAV
    • Yes


    • Wireless Active Subwoofer
    • Yes
    • Bluetooth 4.0
    • Yes
    • HDMI® Out
    • Yes
    • HDMI® Input
    • 1
    • Optical Input
    • 1
    • Portable Audio In (3.5mm)
    • Yes
    • Yes
    • LG TV Sound Sync (Bluetooth)
    • Yes
    • LG TV Sound Sync (Optical)
    • Yes


    • Remote Control
    • Yes
    • Remote Control Batteries
    • Yes
    • Optical Cable
    • Yes
    • USB Gender
    • Yes
    • Wall Mount Bracket
    • Yes


    • TV Matching
    • 40" and above
    • Sound Bar (WxHxD)
    • 35.04" x 2.01" x 3.35"
    • Subwoofer (W x H x D)
    • 6.73" x 15.35" x 10.28"
    • Soundbar Net Weight
    • 6.2 lbs
    • Subwoofer Net Weight
    • 12.6 lbs
    • Shipping Dimensions (WxHxD)
    • 41.1" x 16.4" x 8.5"
    • Shipping Weight
    • 23.1 lbs


    • Soundbar Power Consumption
    • 27W
    • Soundbar Standby Power Consumption
    • <0.5W
    • Subwoofer Power Consumption
    • 33W
    • Subwoofer Standby Power Consumption
    • <0.5W


    • Limited Warranty
    • 1 Year Parts and Labor
    • UPC
    • 719192598638

What people are saying

Rated 5 out of 5 by from Had this product for over a year and it is still really great!
Date published: 2017-07-04
Rated 5 out of 5 by from After 1 year I have been enjoying this sound bar for over a year and it is still working great.
Date published: 2017-03-19
Rated 5 out of 5 by from Worth the Money! I didn't know anything about soundbars, so thought I would give this one a try. The best investment I made. Great quality and sound.
Date published: 2016-11-12
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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.

My subwoofer isn't working anymore. Is there any kits or subwoofers compatible with my LAS55H1 soundbar I could replace with?

Asked by: karion2116
Please contact LG Customer Support so that we can better investigate your issues and quickly assist you towards a resolution. You can contact our Customer Support by any of the below options: Phone: 1-800-243-0000 Live Chat: Email: Facebook Messenger: Twitter: @LGUSSupport The LG Community Forum is also a great resource for getting help from other LG customers: ^CP
Answered by: ChrisPSM
Date published: 2020-03-09

Q: I have the LG LAS551H, is the LG Model: SPJ4-SSKU: 5733500 kit compatible?

Asked by: todd1234
The LG 2.0 ch Sound Bar Wireless Rear Speaker Kit, Model # SPJ4-S is compatible with the SJ4Y and SJ5Y LG Soundbar models. It is not compatible with the LG 320W 2.1ch Sound Bar Audio System with Wireless Active Subwoofer and Bluetooth Connectivity, Model # LAS551H...^IFV
Answered by: LGJoel
Date published: 2018-09-10

Is there any way I can stop any unwanted people connecting to my sound bar?

Asked by: Jackjack5000
We regret the inconvenience you have experienced with this system pairing. It is suggested to attempt resetting the system in order to revoke this pairing. Press the VOLUME DOWN button on the main system and the SOUND EFFECT button on the remote control simultaneously for a full second to reset the microcomputer of the speaker. ^AC
Answered by: Amber C
Date published: 2018-07-12

My wireless subwoofer isn't working my brother took it apart an looked on the inside but didn't see anything wrong an the fuse in it was still good it's like it's not getting any power to it an I don't know why

Asked by: Westley
Hello, please see the link for the replacement part below. ^AC
Answered by: Amber C
Date published: 2018-04-09

I'm having trouble with Bass output from my subwoofer. It's worked great for several months, now suddenly it barely puts out bass (still does output but very little). Connections &amp; cables are good. Seems like an amp issue. PLEASE HELP!

Asked by: Eric D
It sounds like we'll need to walk through some troubleshooting for your audio system. 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: 2018-03-09

every once in awhile a neighbor apartment accidentally connect to my sound bar via Bluetooth. is there any way to stop this from happening. extremely annoying.

Asked by: sado
Turn auto power off . its on the control
Answered by: N Ba
Date published: 2017-11-25

The sound bar works great and is loud with Bluetooth to a phone but when plugged into my tv it doesn't get as loud.

Asked by: Pipeliner
We apologize about the issue you are having with this sound bar. How is the sound bar connected to the TV? Is the volume turned up on both devices? We would need to gather more information to better address your concern. Please contact our Customer Interactive Center at 800-243-0000 for further assistance.
Answered by: NeilE
Date published: 2017-09-05

How do i change the subwoofer settings to lower it?

Asked by: Mike9889
To adjust the subwoofer settings you would do the following: 1. Press ADJUSTMENT button (right of the volume down) repeatedly to select TREBLE, BASS or SUBWF (Subwoofer). 2. Press VOL buttons to adjust the sound level.
Answered by: NeilE
Date published: 2017-08-06
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