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LG Sound Flex Soundbar with Wireless Subwoofer

  • SJ7

Key Features

  • Flexible Set-Up
  • Adaptive Sound Control
  • Bluetooth
  • TV Sound Sync
  • Wireless Subwoofer
Sound that is truly flexible

Sound that is truly flexible

The flexible design of the SJ7 provides an adaptable sound solution for any living room set-up. Enjoy powerful front-facing speakers, surround sound with one speaker in the front and one in the back; and even a portable Bluetooth® setup that you can take on-the-go.

Learn more about FLEX


The LG Sound Bar FLEX can be positioned to create various sound modes. It can be used as a traditional sound bar but can be used as stereo speakers. You have the flexibility to move half of the bar to the rear creating a surround sound experience. The two parts of the bar are automatically connected without wires and delay.

Superb Bass, Without the Wires

Place the wireless subwoofer where it looks and sounds the best without any of the worry of dealing with wires

Adaptive Sound for your content

Adaptive Sound Control is LG's sound analyzing technology. It actively identifies what's playing and automatically adjusts sound settings to create the ideal audio experience to match the content you're watching.

Auto Sound Engine, sound balance at any volume

LG Auto Sound Engine optimizes your sound at any volume level and maintains precise frequencies at all times. This provides the appropriate sound balance regardless of the volume.

Auto Music Play, music that follows you

Sound starts the moment you enter the room. With Auto Music Play activated, the sound bar can automatically take over the playback of the audio from a connected device the moment it senses the device is nearby.

Control with your TV Remote

Control your Sound bar's basic functions with the remote you currently use the most, your TV remote.

Connected to your entertainment

Feel free to connect to the device you wish with HDMI, Optical, Portable In and Bluetooth connectivity options.

Dolby Atmos No
High Resolution Audio No
Hi-Fi DAC No
4K Passthrough (HDCP 2.2) No
Home Cinema Mode No
Group Play Mode No
Auto Music Play No
Google Cast Built-In No
Spotify Connect No
Adaptive Sound Control (ASC) Yes (Primary)
Channel - Sound Bar Mode 2.1 ch
Channel - Rear Speaker Mode 4.1 ch
Channel - Portable Speaker Mode (Primary) 2.1 CH
Channel - Portable Speaker Mode (Secondary) Stereo
Total Power 320W (140W on Battery)
TV Remote Compatibility Yes
Smartphone Remote App (iOS/ Android) No/Yes
Universal Network Search No
BLE EZ Setup Yes
LG Sound Sync Yes
Auto Volume Leveler Yes
Audio Return Channel (ARC) Yes
Dynamic Range Control No
SIMPLINK Yes (Primary)
Network Software Update No
Night Mode Yes (Primary)
Display Type LCD (5 char.)
ASC (Adaptive Sound Control: Default) Yes (Primary)
Standard Yes (Primary and Secondary)
Bass Blast Yes (Primary)
Cinema Yes (Primary)
LPCM Yes (Primary)
Dolby Atmos No
Dolby TrueHD No
Dolby Digital Plus No
Dolby Digital Yes (Primary)
DTS Digital Surround Yes (Primary)
FLAC (Up to 192kHz) No
OGG (Up to 48kHz) No
MP3 No
Sound Bar Mode Total: 320W (140W On Battery)
Primary Front and Secondary Front: 80W x 2
Subwoofer: 160W (80W)
Rear Speaker Mode Total: 320W (140W on Battery)
Front: 80W (30W)
Surround: 80W (30W)
Subwoofer: 160W (80W)
Portable Speaker Mode Primary Total: 160W
Secondary Total: 30W (30W)
Primary Front: 80W
Secondary Front: 30W (30W)
Primary Subwoofer: 80W
Ethernet No
Wi-Fi Band No
Bluetooth (ver. 4.0) Yes
LG TV Sound Sync (Bluetooth) Yes
LG TV Sound Sync (Optical) Yes
HDMI Out Yes (1.4)
HDMI Input Yes (1.4)
Optical Yes (1)
USB (Service Only) No
Portable In (3.5mm) No
Soundbar Power Consumption TBD
Soundbar Standby Power Consumption <0.5W
Subwoofer Power Consumption TBD
Subwoofer Standby Power Consumption <0.5W
Sound Bar (W x H x D) Each x2 Primary & Secondary 340 x 74 x 110mm (x2)
13.4” x 2.9” x 4.3” (x2)
Subwoofer (W x H x D) 170 x 320 x 252mm
6.7” x 12.6” x 9.9”
Shipping Size (W x H x D) 491 x 456 x 223mm
19.33” x 17.95” x 8.78”
Sound Bar Weight Primary 1.7 kg / 3.75 lbs
Secondary 1.8 kg / 4.0 lbs
Subwoofer Weight 4.3 kg / 9.26 lbs
Shipping Weight 9.9 kg / 21.83 lbs
Remote Control MA5 (Black)
Batteries Yes (AAA x 2)
Optical Cable Yes
Wall Mount Bracket No
Cable Management No
Warranty Card Yes
Limited Warranty 1 Year Parts & Labour
UPC 772454068577

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