SJ7
Sound Bar Flex with Wireless Subwoofer
  • Dual Speaker Flexible Setup
  • Rear Surround Sound
  • Portable Bluetooth
  • Built-in Li-ion Battery
  • Vertical Positioning
Sound Bar Flex with Wireless Subwoofer

PRODUCT HIGHLIGHTS

  • Rear Surround
    Yes
    Built-in Battery
    Yes
  • Bluetooth Streaming
    Yes
    Adaptive Sound Control (ASC)
    Yes
  • Sound Sync Wireless
    Yes
    HDMI In/Out
    Yes
  • Wireless Active Subwoofer
    Yes

SPEAKER - CHANNEL / OUTPUT POWER

  • Soundbar Mode - Channels
    2.1ch
    Soundbar Mode - Total Output Power
    320W (Secondary Speaker Using AC Power) 140W (Secondary Speaker Using Li-ion Battery)
  • Rear Surround Mode - Channels
    4.1ch
    Rear Surround Mode - Total Output Power
    320W (Secondary Speaker Using AC Power) 140W (Secondary Speaker Using Li-ion Battery)
  • Portable Mode - Channels
    2.1ch (Primary Speaker) 2.0 (Secondary Speaker)
    Portable Mode - Total Output Power
    160W 30W

FEATURES

  • Bluetooth Remote App (Android)
    Yes
    Bluetooth Stand-By
    Yes
  • Auto Music Play (BLE)
    Yes
    TV Remote Compatibility
    Yes
  • Audio Return Channel (ARC)
    Yes
    LCD Display Auto Dimming
    Yes
  • Subwoofer Level Control
    Yes
    Wall Mountable
    Yes

SOUND MODES

  • Adaptive Sound Control (ASC): Default
    Yes
    Standard
    Yes
  • Bass Blast
    Yes
    Cinema
    Yes

AUDIO FORMAT

  • LPCM
    Yes
    Dolby Digital
    Yes
  • DTS Digital Surround
    Yes

CONNECTIVITY

  • 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
    Yes (1)
    HDMI 1.4 In
    Yes (1)
  • Optical Input
    Yes (1.0)
    USB Host
    No (Service Only)
  • SIMPLINK (HDMI CEC)
    Yes

SPEAKER

  • Front
    60W x 2
    Subwoofer
    200W (Wireless)

BUILT-IN BATTERY (SECONDARY SPEAKER)

  • Battery Type
    Li-ion Battery
    Battery Capacity
    5200mAh
  • Battery Charging Time
    3hr 40min
    Battery Life
    Up to 4 hours of playback

POWER

  • Soundbar Standby Power Consumption
    Less than 0.5W
    Subwoofer Standby Power Consumption
    Less than 0.5W

DIMENSIONS / WEIGHT

  • Recommended TV Size
    43" and above
    Speakers (WxHxD)
    13.4" x 2.9" x 4.3"
  • Subwoofer (W x H x D)
    6.7" x 12.6" x 9.9"
    Subwoofer Net Weight
    9.26 lbs

INCLUDED ACCESSORIES

  • Remote Control
    Yes
    Batteries
    Yes (AAA)
  • Optical Cable
    Yes
    Vertical Table Stand
    Yes

WARRANTY / UPC

  • Limited Warranty
    1 Year Parts and Labor
    UPC
    719192610132
What people are saying
Rated 1 out of 5 by from great sound when it works sound is great when the speakers work they keep cutting in and out very annoying i have been a loyal lg customer but these speakers make me wanna try another brand sent the speakers to lg to get fixed after nearly 3 weeks was told they had to order a part so the part came in and was sent back to me well after about 2 days it’s doing the same thing again
Date published: 2019-03-05
Rated 1 out of 5 by from great idea but horrible execution I have never experienced buyer's remorse as badly as this purchase. It produces good sound, but only when it wants to. The left/secondary speaking is constantly cutting out. The subwoofer randomly cuts out every 20-30 seconds. Sometimes it makes this weird rumbling/rattling sound. We were watching a movie and the dialogue was so low we had to turn the volume up high and then the sound effects would be too loud. I really wanted to love this but I would give anything to be able to return it and get something better.
Date published: 2019-01-09
Rated 1 out of 5 by from Delay on tv Significant delay on tv where people talking on tv don’t match thier lips. Also had it set up and now the one wireless speaker won’t connect. Complet junk. So upset I spent that much money and get such poor performance
Date published: 2018-10-28
  • y_2019, m_7, d_21, h_8
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_35
  • loc_en_US, sid_MD05794509, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 5ms
  • REVIEWS, PRODUCT
ASK & ANSWER

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.

Can I use a different subwoofer? My sub got smashed during a move. Do I have to use the exact subwoofer model or can I use a different LG sub or a different brand all together

Asked by: Martin R
You cannot add speakers to the LG Sound Bar Flex with Wireless Subwoofer, Model # SJ7. Parts and accessories can be obtained through our parts distributor, Encompass Parts. Their contact number, for placing orders and pricing information, is 866-779-7906. You can also use their website, at https://www.encompassparts.com/ ^CP
Answered by: ChrisPSM
Date published: 2019-02-21

I need a remote Control for my flex sound bar

Asked by: Mr WILL
Hello, please see the below link for the part. ^AC https://encompass.com/item/11497810/LG/AKB74815381/
Answered by: Amber C
Date published: 2018-09-05

The sound bar is connected to the tv and shows that it is connected and it is on the correct function. However sound doesn't come from the sound bar. I even paired it with my Bluetooth phone and it still wouldn't play. Ideas?

Asked by: Kiki123
Hello, we do need more information to be able to assist. Please give us a call at 1-800-243-0000 when you are with the unit. ^AC
Answered by: Amber C
Date published: 2018-02-19

Does the surround button have any effect on the audio if you are in Sound Bar mode or does this only apply if you are using the 2nd speaker in Back mode? Does Cinema mode give you separation (stereo) between the 2 speakers in Sound Bar mode?

Asked by: CGinSD
In soundbar mode the Primary unit and Secondary unit play as FRONT L/ R (Left/Right) speaker like a sound bar. The surround sound button would give you the feeling of sound to the left and to the right but would not give you the rear sound. With cinema mode you can enjoy more immersive and cinematic surround sound. ^CP
Answered by: ChrisPSM
Date published: 2018-02-10

Can the Subwoofer placed horizontally?

Asked by: LG007
The subwoofer is designed to be placed vertically. ^CP
Answered by: ChrisPSM
Date published: 2018-02-10

What is the AC input voltage?

Asked by: LG007
The LG Sound Bar Flex with Wireless Subwoofer, Model # SJ7 has an AC/DC Adapter, Model # DA-38A25 that has an Input of 100 - 240 V ~ 50-60 Hz, 1.2 A and a DC output of 25 V, 1.52 A...^IFV
Answered by: LGJoel
Date published: 2018-02-09

Can a nearby electronic device cause interference with the two speakers? I have the system connected to the tv but sometimes I get a loss of audio between the two. Sometimes the left side cuts off for a second then the right. I have multiple devices near

Asked by: Danhernan78
In the 'Using BLUETOOTH® technology' on page 27 of your owner's manual for the LG Sound Bar Flex with Wireless Subwoofer, Model # SJ7, the second paragraph explains that "The sound may be interrupted when the connection has interference from other electronic waves or when you connect Bluetooth in the other rooms." Devices like your phone, your microwave oven or other devices that operate in the same frequency range (i.e. between 2402 and 2480 MHz, or 2400 and 2483.5 MHz including guard bands 2 MHz wide at the bottom end and 3.5 MHz wide at the top.) can cause interference and depending on what material your walls are made of, electrical conduits within the walls can also cause interference. Then on page 35 of your owner's manual under 'NOTES to use wireless' is also advises that if the problem is "This device may have wireless interference", that the Cause and correction may be that {1}Wireless may not operate normally in weak signal area. {2} Please install the device close enough to wireless subwoofer, or {3} Do not install the device on metal furniture for optimum performance. It also explains that if the problem is "Bluetooth device may malfunction or make noise in the following cases.", that the cause and correction are: {1} When any part of your body makes contact with the transceiver of the Bluetooth device or sound bar. {2} When there is an obstacle or wall or the device is installed in a secluded spot. {3} When there is a device (a wireless LAN, medical equipment or a microwave) using the same frequency, make the distance between the products as far as possible away from each other. {4} When connecting the device to a Bluetooth device, make the distance between the products as close as possible. {5} When the device gets too far from the Bluetooth device, the connection is disconnected and the unit may malfunction...^IFV
Answered by: LGJoel
Date published: 2018-02-07

Is the soundbar able to be mounted on the wall? 

Asked by: Danhernan78
The specifications for the LG Sound Bar Flex with Wireless Subwoofer, Model # SJ7 list it as a Wall Mountable unit, however, it does not come with a mounting bracket as an included accessory. You can check Consumer Electronic Retail stores like Best Buy etc., to see if they carry aftermarket mounting brackets that you might be able to use...^IFV
Answered by: LGJoel
Date published: 2018-02-07
  • y_2019, m_7, d_21, h_8CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_22
  • loc_en_US, sid_MD05794509, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 206ms
  • QUESTIONS, PRODUCT
Compare (0)