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LG SC9S Powered 3.1.3-channel sound bar and wireless subwoofer system with Wi-Fi, DTS:X, and Dolby Atmos®

Item # 689SC9S

The SC9S features three up-firing channels for detailed overhead effects — plus a ton of music streaming options.

The SC9S features three up-firing channels for detailed overhead effects — plus a ton of music streaming options.

2 questions - 2 answers

Item # 689SC9S

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About the LG SC9S

Colin M.

Triple up-firing design

The LG SC9S sound bar system offers immersive home theater sound with support for Dolby Atmos and DTS:X multi-channel audio formats. The bar has six built-in speakers driven by a 180-watt amplifier, including a robust trio of height channels that coordinate to bounce effects off your walls and ceiling for immersive 3D audio. Plus, an included powered sub adds low-end impact to help you feel the action on-screen.
LG SC9S powered 3.1.3-channel sound bar with Bluetooth, Wi-FI, DTS:X, and Dolby Atmos

The SC9S delivers cinematic Atmos sound that's a perfect match for the pristine picture of LG's OLED evo C Series TVs.

Triple up-firing design

The LG SC9S sound bar system offers immersive home theater sound with support for Dolby Atmos and DTS:X multi-channel audio formats. The bar has six built-in speakers driven by a 180-watt amplifier, including a robust trio of height channels that coordinate to bounce effects off your walls and ceiling for immersive 3D audio. Plus, an included powered sub adds low-end impact to help you feel the action on-screen.

That all adds up to give you a truly impressive home listening experience without the complexity or cost of a traditional system with multiple speakers and a receiver. Thanks to a dedicated center channel, quieter moments and dialogue are also easier to follow and won't be lost in the process.

Streaming options aplenty

Built-in Wi-Fi and Bluetooth let you wirelessly stream your favorite tunes from your phone directly to the sound bar. Or connect to the Apple AirPlay® 2 wireless ecosystem using an iOS® device. Android™ fan? No problem. This bar also streams content through Chromecast built-in, via a wide range of compatible apps. If you want to minimize cord clutter, you can even use the sound bar's Bluetooth to receive a stereo signal from a compatible LG TV.

Made to work with LG TVs

The SC9S is designed to work seamlessly with 2023 LG TVs. You can reduce the clutter on your coffee table by controlling the sound bar with your TV remote. You can also enhance audio performance with TV Sound Mode Share, letting the bar benefit from your TV's built-in audio processing, or activate WOW Orchestra, which synchronizes the bar and TV's speakers to let them work together for a fuller soundstage.

Convenient setup with LG OLED C3 TVs

This bar comes with LG's Synergy Bracket, which gives you a clean-looking installation when paired with LG OLED "evo" C-Series TVs. This versatile bracket lets you easily attach the bar directly to compatible C3 and C2 TVs (55", 65" and 77" models). You can use it as a pedestal TV stand or wall-mount bracket, and it positions your sound bar direclty below the TV.

Voice control with Alexa or Google

You can use the sound bar's built-in Wi-Fi to connect to an Amazon Alexa or Google Assistant device. This lets you to control the sound bar with just your voice. You can also ask your preferred voice assistant to play music, check the weather, or even snag recipes while you're cooking.

Enjoy high-res audio

If you have a collection of high-resolution music files, you can play them on this sound bar system. It handles audio files up to 24-bit/192kHz. So, if you've got quality tracks stashed on a USB drive, you can plug it right in and rock out. You can also stream uncompressed tracks with services like TIDAL (subscription required). The bar even upsamples low-res or compressed digital files, so you can benefit from improved quality no matter what you're listening to.

Easy to use and install

The sound bar can connect directly to your TV with either the included HDMI cable or via an optical digital input (optical digital cable sold separately). The included powered subwoofer connects to the sound bar wirelessly, giving you additional wiggle room for placement. Plug both the bar and sub into AC power and you're good to go.

Matching your sound up to your space is easy, too, with AI Room Calibration Pro. This technology automatically tailors your sound to the shape of your room. There's also AI Sound Pro, which quickly analyzes what you're watching to optimize your audio settings for better sound quality.

4K/HDR passthrough with HDMI

The bar's HDMI connections allow 4K video passthrough with support for HDR (High Dynamic Range), including HDR10 and Dolby Vision®. That lets you maintain a high-contrast Ultra HD picture from your Blu-ray player or video game console through to your TV. If you're a gamer, you'll also benefit from passthrough for both VRR (Variable Refresh Rate) and ALLM (Auto Low Latency Mode).

The bar also supports eARC (enhanced Audio Return Channel), so it can receive uncompressed audio signals — including DTS:X and Dolby Atmos — from an eARC-equipped TV.


Product highlights:

  • sound bar and wireless subwoofer
  • delivers 3.1.3-channel sound enhanced by DTS:X and Dolby Atmos
  • enhanced compatibility with 2023 LG TVs
    • WOW Orchestra allows bar to synchronize with select LG TVs to create a fuller soundstage
    • TV Sound Mode Share lets your sound bar take advantage of the TV's sound processing
    • WOW Interface lets you control sound bar modes with your LG TV remote
    • works with the LG WOWCAST wireless transmitter for a sleek, lag-free connection to your TV (sold separately)
  • LG OLED Synergy Bracket lets you attach the bar directly to LG OLED evo C-Series TVs
    • bracket can be used as a pedestal TV stand or wall mount
    • compatible with 55", 65", and 77" models
  • allows passthrough of 4K and IMAX Enhanced content through HDMI
    • supports HDR (High Dynamic Range), including HDR10 and Dolby Vision
    • ALLM (Auto Low Latency Mode) passthrough for seamless gaming
    • VRR (Variable Refresh Rate) passthrough up to 120 Hz
  • quickly adjust your audio with preset sound modes including Cinema, Music, Sports, Game, Clear Voice, Night Time, and Bass Blast+
  • AI Room Calibration Pro automatically tailors the sound to the characteristics of your room
  • AI Sound Pro analyzes what you're watching and adjusts audio settings in real time to enhance sound quality
  • Smart Up-Mixer converts stereo signals into multi-channel audio
    • not available when using Bass Blast mode
  • plays high-res audio files up to 24-bit/192kHz
    • upsamples compressed digital files for improved quality
  • built-in Dolby decoding, including Dolby TrueHD, Dolby Digital Plus, and Dolby Atmos
  • supports DTS Digital Surround, DTS-HD Master Audio, and DTS:X
  • total system power: 400 watts
Smart features:
  • built-in Wi-Fi and Bluetooth 5.0 for wireless music streaming from compatible devices
    • connect to compatible LG TVs with Bluetooth
  • built-in Spotify® Connect for music streaming (subscription required)
  • compatible with Apple AirPlay 2 to allow wireless streaming from your iOS® devices
  • Chromecast built-in for streaming music from the cloud with compatible mobile apps
  • stream high-res music with services like TIDAL HiFi/HiFi Plus (subscription required)
  • control the sound bar with your voice using a Google Assistant or Amazon Alexa device
Sound bar:
  • six built-in speakers powered by a 180-watt amplifier (30 watts each)
    • front left/right channels
    • height left/right channels
    • dedicated center channel
    • height (center) channel
  • designed to fit under TVs 55" or larger
  • wall-mountable (bracket included)
  • dimensions (measured by Crutchfield): 38-7/16"W x 2-1/2"H x 4-15/16"D
  • weight: 9.1 lbs.
  • 7" woofer driven by a 220-watt amplifier
  • wirelessly connects to the sound bar for flexible placement
  • AC power required, cord included
  • dimensions (measured by Crutchfield): 8-11/16"W x 15-3/8"H x 12-7/8"D
  • weight: 17.2 lbs.
Connections and general info:
  • 1 HDMI input, 1 HDMI output (cable included)
    • supports enhanced Audio Return Channel (eARC)
    • 4K video passthrough with support for Dolby Vision and HDR10
  • optical digital audio input (cable not included)
  • USB input for playing music from a thumb drive
    • plays MP3, AAC, OGG, FLAC, and WAV files
  • includes remote control
  • control the sound bar with a remote app using an Android or iOS device
  • warranty: 1 year
  • MFR # SC9S

No A/V receiver required.

What's in the box:

  • Active soundbar speaker (SC9S)
  • Wireless powered subwoofer (SPS8-W)
  • AC power adapter (attached 5' DC cord)
  • 39" AC power cord
  • 5' AC power cord
  • Remote control
  • 2 "AA" batteries
  • 58" HDMI cable
  • Front bracket
  • Rear bracket
  • 2 Spacers
  • Four M4x26mm screws
  • 8 M4x12mm screws
  • Simple Manual
  • Install Guide

Customer reviews for LG SC9S

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More details on the LG SC9S

Stacey B.

Features & specs

Design Bar
Amplification Self-powered
Separate Subwoofer Yes
Wireless Surrounds Optional
Number Of Channels 3.1.3
Surround Formats
Dolby Digital Yes
Dolby Atmos Yes
Audio Enhancements
Dialogue Enhancement Yes
Auto Volume Yes
Night Mode Yes
Virtual Surround Cinema Mode
Room Correction Yes
Audio Connections
Optical Digital Inputs 1
Coaxial Digital Inputs None
HDMI ARC Input Yes
HDMI eARC Input Yes
3.5mm Stereo Analog Inputs None
RCA Stereo Analog Inputs None
USB Type-A Input No
Subwoofer Output Wireless
Audio Specs
Tweeter Dome (2)
Midrange None
Woofer Cone (6)
Subwoofer Driver 7" Cone
Enclosure Sealed(bar),Ported(sub)
System Frequency Response Not Given
Sound Bar RMS Power 180
Subwoofer RMS Power 220
Video Connections
HDMI Inputs 1
HDMI Outputs 1
Video Specs
HDMI Version 2.1
HDMI Video Pass-through Resolution 4K
HDR Video Compatible Yes
Includes Remote Yes
Voice Control Alexa & Google Assistant optional
Control by App Apple iOS, Android
Remote IR Passthrough No
Learns TV Remote Pre-programmed
Audio Streaming
Bluetooth Connectivity Built-in
Bluetooth Audio Playback Yes
Bluetooth Transmitter Mode No
Online Music Sources via Chromecast, Alexa
Apple AirPlay AirPlay 2
Chromecast built-in Yes
Amazon Music Yes
Apple Music
Pandora Yes
SiriusXM Yes
Spotify Yes
TuneIn Yes
YouTube Music Yes
Files on Your Network No
Wi-Fi Networking
Built-in Wi-Fi Version 802.11ac
Bands 2.4, 5.0 GHz
Other Info
Wall-mountable No
Mounting Bracket Included No
Sound Bar Size (inches) 2-1/2H x 38-7/16W x 4-15/16D
Sound Bar Weight 9.1 lbs
Subwoofer Size (inches) 15-3/8H x 8-11/16W x 12-7/8D
Subwoofer Weight 17.2 lbs
Speaker Parts Warranty 1 Year
Speaker Labor Warranty 1 Year
Amplifier Parts Warranty 1 Year
Amplifier Labor Warranty 1 Year

Product Research

Audio Section
Network, Bluetooth, & USB Audio
Control & Mounting Options

Audio Section

3.1.3ch Surround Sound: The LG SC9S soundbar system is capable of delivering up to 3.1.3-channel surround with the included active soundbar speaker and wireless powered sub. You can step up to 5.1.3ch surround with LG's SPQ8-S wireless rear speaker kit (sold separately),

  • Active Soundbar Speaker: The active soundbar speaker incorporates an eight driver array that includes front-firing front left, center, and front right channels; along with up-firing left, center, and right Dolby Atmos/DTS:X enabled channels. Each Front channel consists of a tweeter and woofer, while the Center channel and up-firing channels each consist of a full-range driver. All drivers are powered by a built-in 180W amplifier with 30 watts delivered to each of the Front Left and Right channels, as well as 30 watts delivered to each of the up-firing Height channels, plus 30 watts delivered to each of the Center channel and Height Center channel.
  • Wireless Powered Subwoofer: The wireless powered subwoofer houses a front-firing 7" woofer powered by a built-in 220W (RMS) amplifier inside a bass reflex cabinet with a rear-firing port. Because its wireless, you can place the subwoofer almost anywhere in your room (up to 33' from the soundbar). The wireless powered subwoofer does require an AC power outlet connection.
  • Optional Wireless Rear Speakers: The SC9S soundbar system has been designed to integrate with LG's SPQ8-S wireless rear speaker kit (sold separately), adding dedicated rear channels with wireless convenience for 5.1.3ch surround sound. The SPQ80-S includes an amplifier/receiver unit and pair of speakers that link wirelessly to the LG soundbar. The LG Wireless Surround Sound Kit (SPK8-S) will require an AC power outlet connection and speaker wire connection. The kit's wireless receiver/amplifier receives its audio signal wirelessly from a compatible LG soundbar speaker. The rear surround speakers connect to the wireless receiver/amplifier using speaker wire. The wireless receiver/amplifier also requires connection to an AC power outlet.

Note: The included mounting bracket system is designed specifically for LG's 2022-2023 LG evo C Series OLED TVs (55", 65", or 77")

LG's Triple Sound Technology: The LG SC9S soundbar delivers accurate sound reproduction and enhanced clarity for a more complete home cinema experience thanks to LG's Triple Sound Technology, which includes a Triple Up-Firing Speaker Array. LG's Triple Level Spatial Sound Technology employs channel analysis performed by an HRTF-based 3D engine to add a virtual mid-layer. The result is incredibly lifelike sound with a convincing sense of space that puts your at the center of an immersive audio environment.

AI (Artificial Intelligence): The SC9S incorporates LG's AI Room Calibration Pro, AI Sound Pro, and Smart Up-Mixer to ensure the soundbar and subwoofer system sounds great in your room and with your source content. These artificial intelligent audio technologies optimize your listening experience every time, regardless of room configuration and source content.

  • AI Room Calibration Pro: AI Room Calibration Pro is an automatic sound tuning technology that compensates for the environment the soundbar and sub is placed, by using sophisticated algorithms that improve the system's sonic performance. It uses the soundbar's integrated microphones and the LG Sound bar app's spatial awareness software to measure your room's unique characteristics. It then balances the soundbar's audio settings to the environment (room) for optimized surround with a more accurate sweet spot that sounds natural and accurate.
  • AI Sound Pro: AI Sound Pro automatically and intelligently analyzes source content in real-time to enhance sound quality. It automatically adjust sound levels (including Bass & Treble) based on the content you are watching and listening. From powerful action to dramatic dialog, you'll hear your entertainment with crystal-clear, detailed audio. If you have a 2021-up LG TV with AI Sound Pro, you can turn on the TV Sound Mode Share feature to allow for even more superior audio processing power and additional sound effect modes.
  • Smart Up-Mixer: The Smart Up-Mixer feature allows the LG SC9S soundbar system to create a wider soundstage to fill your room for a richer immersion of surround sound, converting 2-channel stereo content into an immersive multichannel audio experience.

Note: An internet connection and the LG Sound Bar app is required to use AI Room Calibration Pro.

Digital Surround Sound Formats: The LG SC9S soundbar and sub system supports the following multichannel digital audio formats through its HDMI & optical digital inputs.

Digital Connector
Audio Signal Type Audio Signal Format
HDMI Bitstream Dolby Atmos, Dolby TrueHD, Dolby Digital Plus, Dolby Digital
DTS:X, DTS HD, High Resolution, DTS HD Master Audio, DTS
PCM 2ch / 5.1ch / 7.1ch
Bitstream Dolby Digital, DTS
PCM 2ch

3D Surround Sound: The LG SC9S is capable of delivering a 3D immersive surround experience (up to 3.3.1ch) for Dolby Atmos, DTS:X, and IMAX Enhanced.

  • Dolby Atmos: With Dolby Atmos sound comes alive from all directions, including overhead, to fill your home theater with astonishing clarity, power, detail, and depth. Rather than being constrained to channels, sounds exist as individual entities that are precisely placed and moved in three-dimensional space. A new sensation of height immerses you in the action, creating a full audio atmosphere and realistically depicting objects moving overhead. Dolby Atmos renders everything from dialogue to quiet scenes to whirlwind action with astonishing clarity, richness, detail, and depth. It all comes together in sound that excites your senses and inspires your emotions to deliver the full impact of entertainment.
  • DTS:X: DTS:X is the next generation object-based, multi-dimensional audio technology from DTS. Unbound from channels, DTS:X conveys the fluid movement of sound to create an incredibly rich, realistic and immersive soundscape - in front of, behind, beside and above the audience - more accurately than ever before. DTS:X offers the ability to automatically adapt the audio to the speaker layout that best fits your space.
  • IMAX Enhanced: Get the most premium at-home entertainment experience with IMAX Enhanced. IMAX and DTS have partnered together with award-winning Hollywood sound mixers to create a special variant of the DTS:X codec technology integrated in home audio equipment (like the LG SC9S soundbar system) to deliver an IMAX signature sound experience that is dynamic, immersive, theatrical, and powerful.

Note: Because the soundbar does not have discrete surround drivers, surround channel information from Dolby Digital, Dolby Atmos, DTS, DTS:X, and other surround formats are mixed with the soundbar's front channels and up-firing drivers.

Sound Effect Modes: You can choose from preset Sound Effect Modes to tailer the system's sound to your application, content, and preference. You can choose from a variety of sound effect modes.

  • Standard: Standard mode provides a flat frequency response from the original 2ch or 5.1ch soundtrack.
  • Music: The Music mode produces 2ch stereo sound that is enriched with Meridian Horizon technology for high resolution audio that sounds closer to the real thing.
  • Cinema: The Cinema mode allows you to enjoy cinematic 3D sound produced by multiple audio channels from the speakers, regardless of the channels in the originally recorded content.
  • Sports: The Sports mode delivers realistic sound like in a stadium.
  • Game: The Game mode optimizes the system's sound for gaming.
  • Clear Voice: Voice sound clear, improving the quality of voice sound
  • Bass Blast+: Bass Blast+ reinforces the system's low frequency bass response, resulting in more powerful sound.
  • Night: Using Night mode, you can enjoy sound effects and hear the dialog clearly even at a low volume levels. This reduces the general sound volume, but raises the volume of soft and delicate sounds. This is useful when enjoying music or a movie late at night.

Sound Tuning: You can adjust the output level of the soundbar's center and front channels, as well as the output level of the powered subwoofer. You can also enhance the soundbar's vocal and dialog clarity, as well as boost the powered subwoofer's bass.

  • Output Levels: You can adjust the bass & treble level of the soundbar's front-channel drivers; as well as the output level of the soundbar's discrete center-channel driver, up-firing drivers, and the output level of the system's powered subwoofer. You can also adjust the output level of the optional rear speaker kit (sold separately).
  • Auto Volume: The LG SC9S features Auto Volume which automatically adjusts the volume level of the soundbar speaker system during loud and low passages, keeping the volume level constant across all programs and advertisements.
  • DRC: The Dynamic Range Compression (DRC) function allows you to compress the dynamic range of Dolby Digital and DTS sound tracks. Only accessible from the LG Soundbar App for Apple iOS and Android.

WOWCAST Ready: Use LG's WOWCAST (sold separately) for a wireless connection between the SC9S soundbar system and your ARC/eARC enabled TV to enjoy lossless, multichannel audio in a more convenient way. WOWCAST allows the SC9S soundbar system to connect wirelessly with select 2022-2023 LG TVs, providing cable-free convenience and a tidier look in the living room without any sacrifice to audio quality. WOWCAST can wirelessly transmit up to 7.1.4 channels and output Dolby Atmos/DTS:X for a more immersive audio experience (However, the SC9S is limited to 3.1.3 channels). WOWCAST connects to your TV's ARC or eARC HDMI input for audio transmission and to your TV's USB port for power. It then wirelessly sends a lossless multichannel audio signal from your TV to the LG SC9S soundbar. The LG Sound Bar App (for Apple iOS and Android OS) will be required for setup. Additional features when using WOWCAST include -

  • WOW Orchestra: WOW Orchestra creates seamless sound and control when the SC9S is paired with a compatible 2022-2023 LG TV. WOW Orchestra utilizes every one of the two product's (soundbar & TV) audio channels to create an expanded soundstage with improved height, depth and power.
  • WOW Interface: The WOW Interface brings an intuitive interface to the Home Dashboard on select 2022-2023 LG TVs, enabling your to easily manage the soundbar's settings and share sound modes with the TV.


  • When used with a TV with an eARC HDMI input, WOWCAST will support uncompressed audio formats like Dolby Atmos, DTS:X, Dolby TrueHD, DTS-HD, DTS HD Master Audio, and LPCM.
  • When used with a TV with an ARC HDMI input, WOWCAST is limited to Dolby Digital, Dolby Digital Plus, DTS, and LPCM.
  • WOWCAST has limited range and should be mounted near the TV and compatible LG soundbar. It can be mounted to the back of the TV using double-sided tape.
  • The LG WOWCAST only wirelessly transmits an audio signal (not video).

eARC (Enhanced Audio Retain Channel): Along with standard ARC (Audio Return Channel), the LG SC9S supports eARC (Enhanced Audio Return Channel). ARC and eARC allows audio to be sent from your compatible TV to the soundbar system through the same HDMI cable already being used to send audio and video to your television. This eliminates the need for extra cables connected to your television. our TV will also need to support eARC or ARC for this feature to work. Many newer TVs will support eARC, while most older TVs are limited to ARC.

  • eARC will support uncompressed audio formats like Dolby Atmos (Dolby TrueHD), DTS:X, Dolby TrueHD, DTS-HD, DTS HD Master Audio, and 2/5.1/7.1ch PCM.
  • ARC is limited to Dolby Atmos (Dolby Digital Plus), Dolby Digital, Dolby Digital Plus, DTS, DTS ES, and 2/5.1/7.1ch PCM.
Note: The ARC-enabled HDMI input on some TVs will only pass 2ch PCM from devices connected to the TV via HDMI or analog, we recommend that you connect your Blu-ray/DVD player, Satellite/Cable box, or Gaming console to the soundbar system directly; and then connect the system's ARC-enabled HDMI output to your TV's ARC-enabled HDMI input. This setup will give you with the best overall sound performance.

Optical Digital Input: In addition to HDMI connectivity, the LG SC9S is equipped with a optical (toslink) digital input. The optical digital input supports Dolby Digital (up to 5.1ch), DTS (up to 5.1ch), and PCM (up to 2ch) audio signals. 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz sampling frequencies are supported.

  • The optical digital input does not support Dolby Atmos or DTS:X.
  • The LG SC9S is not equipped with any analog audio inputs.

Note: The digital optical output terminals of some flat-panel TVs only send an audio signal in 5.1ch when receiving Dolby Digital/DTS surround sound from the TV's built-in tuner, network connection, or connected USB device; and will output only 2ch stereo from sources connected to the TV via HDMI, or RCA (like your Blue-ray/DVD player or satellite/cable box).

Video Section

HDM 2.1: The LG SC9S soundbar speaker system is equipped with a HDMI 2.1 input and HDMI 2.1 eARC output that support up to 4K and HDR video pass-through with HDCP 2.3, plus support for VRR and ALLM. The HDMI jacks also support Dolby Digital/DTS multichannel audio formats (including Dolby Atmos & DTS:X). The eARC (Enhanced Audio Return Channel) function of the soundbar's HDMI output enables an HDMI eARC capable TV to send its audio stream to the HDMI output of the soundbar system.

  • 4K Pass-Through: 4K pass-through allows the SC9S to receive ultra high-definition resolution video and pass the video signal to a 4K compatible TV or display monitor. The system supports 4K, 1080p, 1080i, 720p, and 480p video signals.
  • HDCP 2.3: The soundbar's HDMI input and output also support HDCP 2.3, which fully complies with the latest copyright protection standard for 4K video transmission. HDCP 2.3 is supported by the soundbar system's HDMI input and output. HDCP 2.3 is short for "High bandwidth Digital Content Protection" and is used for 4K video copyright protection

HDR (High Dynamic Range): HDR (High Dynamic Range) reproduces a greater dynamic range of luminosity or brightness levels, bringing greater contrast & wider color spectrum to the screen. This increased contrast reveals the subtle nuances of the image, from detailed blacks and shadows to the brightest whites and colors. The LG SC9S supports the following HDR formats - HDR10 and Dolby Vision.

  • HDR10: HDR10 is an open standard and currently the most popular HDR format on the market. It supports 10-bit color and 1,000 nits. It uses static metadata at the start of a movie to tell the receiver and your TV that the video content is encoded using HDR.
  • Dolby Vision: Dolby Vision Content has dynamic metadata that is produced during content creation, capturing the dynamic properties of each scene. This dynamic metadata is used to optimize the picture brightness curve on a frame-by-frame basis. Dolby Vision is the preferred HDR format by major Hollywood Studios and delivers the cinematic experience the creator intended by optimizing the picture frame-by-frame.

Note: Use a premium high-speed 18Gbps HDMI cable for the best HDR performance.

Enhanced Gaming: The LG soundbar system offers ALLM (Auto Low Latency Mode) and VRR (Variable Refresh Rate) for an optimized gaming experience. When you connect a gaming console via HDMI, you can enjoy the reduced input lag and minimized screen tearing delivered by Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM) technology.

  • ALLM: ALLM (Auto Low Latency Mode) lets the soundbar automatically recognize when a gaming console or gaming PC is connected and in use.
  • VRR: VRR (Variable Refresh Rate) delivers smooth action gaming with less studdering and tearing from PC games and gaming consoles with a pass-through refresh rate up to 4K/120Hz. Use an ultra high-speed 48Gbps HDMI cable for 4K/120Hz.

Note: Your gaming console and TV must also support VRR and ALLM.

Network, Bluetooth, USB Audio

Wireless Network Connectivity: The LG SC9S offers dual-band 2.4/5GHz WiFi (802.11ac) that allows you to wirelessly connect to your home network and access your internet provider. Via the wireless connection to your network and internet, you can enjoy select online music apps from Chromecast built-in with Google Assistant, AirPlay 2 with Siri, and Amazon Alexa. WiFi setup can be done via the LG Sound Bar App (for Apple iOS and Android OS )

Note: There is no Ethernet (RJ45) LAN jack on this unit for a hardwired connection.

Wireless Network Connectivity: The LG SC9S offers dual-band 2.4/5GHz WiFi (802.11ac) that allows you to wirelessly connect to your home network and access your internet provider. Via the wireless connection to your network and internet, you can enjoy select online music apps from Chromecast built-in with Google Assistant, AirPlay 2 with Siri, and Amazon Alexa. WiFi setup can be done via the LG Sound Bar App (for Apple iOS and Android OS)

Note: There is no Ethernet (RJ45) LAN jack on this unit for a hardwired connection.

Works With Alexa: The LG SC9S Soundbar speaker system works with Alexa voice control using an external Alexa-enabled device (such as the Amazon Echo - sold separately). You'll need to download the LG Sound Bar App (for Apple iOS and Android OS) and the Amazon Alexa App (for Apple iOS and Android OS) to setup Alexa voice control. Using your voice and an external Alex-enabled device, you can stream Alexa compatible music apps (such as Amazon Music, Apple Music, Pandora, TuneIn, iHeartRadio, Tidal, Spotify, and more) to the LG soundbar. Simply ask for your favorite artist or song, or request a specific genre or mood - using only your voice.

  • The LGSC9S does not feature a built-in microphone for Alexa; you'll need an external Alexa-enabled device (sold separately) to use Alexa voice control.
  • The Alexa feature only supports audio streaming of compatible Alexa apps; it does not support control of other soundbar functions such as power on/off or source input selection.
  • In order to use Alexa voice control, you must consent to Amazon's Terms of Service and Privacy Policy.

Chromecast Built-In: Chromecast Built-in lets you cast many of your favorite music apps from your compatible Android or Apple iOS device to the LG SC9S. You'll be able to cast many of your favorite internet radio stations, online music services, and podcast to the LG active sound bar speaker system. Simply tap the Cast button from a Chromecast built-in compatible app on your Apple iOS or Android OS device to start streaming to the LG SC9S. While you are casting, you can still use your phone to answer a phone call, play a game, send a text, and even leave the room - all without interrupting what's playing through the LG soundbar speaker system. Use the Google Home app (for Apple iOS and Android OS) to setup Chromecast built-in on your mobile device and the LG SC9S active soundbar speaker system.

  • Music & Radio: Chromecast built-in streams audio directly from the cloud, so you get the 24-bit/96kHz sound quality and the ability to enjoy crystal clear sound exactly the way the artist intended. Chromecast built-in supports FLAC, WAV, AAC, and MP3 music files. Play music from popular music services and search by artist, song, genre, album playlist, mood, or activity. You can also listen to your favorite internet radio stations and podcasts. Compatible music and internet radio apps include Tidal, Spotify, Pandora, TuneIn, iHeart Radio, YouTube Music, and more (subscriptions and fees will apply). For a list of all compatible Chromecast Built-in apps click here. You'll also be able to stream your favorite music, playlists, podcasts, and more that are stored on your Android (OS 5.0+) device to the LG SC9S. You cannot stream stored content on an Apple iOS device using Chromecast built-in. If you're on your laptop or computer, you can also cast any music streaming website through the Chrome web browser to the speaker.
  • Multiroom Audio: The LG SC9S delivers multiroom audio capability by adding additional Chromecast built-in speakers (sold separately - see Accessories Tab) to create a whole house audio experience. You can play the same Chromecast built-in compatible music app (like Tidal, Spotify, or Pandora) on all speakers or groups of speakers in different rooms of your home. You'll be able control the multiroom audio system from the Google Home app on your Apple iOS or Android device, or using the built-in Google Assistant and your voice.
  • Optional Voice Control: With a Google Assistant enabled smart speaker (sold separately - see Accessories Tab), you can use your voice to control playback of compatible Chromecast built-in music apps (no microphone built-in). With a simple voice command, you can play music from Chromecast compatible music services by artist, song, genre, album, playlist, mood or activity. You can also turn up the volume, skip to the next track, or stop the music. In order to use Google Assistant, you must consent to Google's Terms of Service and Privacy Policy.

AirPlay 2 w/ Siri: AirPlay 2 is an advanced and easy-to-use wireless multiroom audio platform for iTunes, Apple Music, and other compatible Apple iOS apps. With AirPlay 2 you can play any sound from your Apple iOS device (running iOS 11.4 or later) or Mac computer (running OS X 10.13.2) on the LG SC9S soundbar system and other compatible AirPlay 2 speakers throughout your home. You will also be able to ask Siri-enabled devices (like your Apple iPhone, iPad, or Watch) to control playback of your Apple Music on the LG SC9S soundbar speaker and sub. You can choose to play audio in one room, play the same audio in grouped rooms, or play the same audio in every room. If you are an Apple Music subscriber, you can even play different music in different rooms (you can control and group directly from Apple's Music App and Home app on your Apple iOS device). You can even watch videos and movies from YouTube and Netflix on your compatible Apple iOS device or Mac computer with perfectly synced audio on the LG SC9S.

Spotify & Tidal Connect: The LG SC9S offers the integration of Spotify Connect & Tidal Connect, allowing you to wirelessly stream your favorite music from two of the most popular online music services (fees will apply).

  • Spotify Connect: The integration of Spotify Connect enables Spotify users to instantly select and wirelessly stream music to the LG SC9S soundbar system from within the Spotify app on your Apple iOS or Android OS device, as well as your Windows PC or Mac computer. Spotify is a digital music service that gives you on-demand access to one of the largest music libraries in the world. Spotify makes it easier than ever to discover, manage, and share music with your friends. You can browse music by artist, album, track, or most popular; and create your own music library with customized playlists. Spotify offers free and paid services.
  • TIDAL Connect: The integration of Tidal Connect will enable Tidal users to instantly select and wirelessly stream music to the LG SC9S from within the Tidal app (for Apple iOS and Android OS). TIDAL is a global streaming service offers millions of songs in high-fidelity CD sound quality. TIDAL has two pricing tiers; either $9.99 or $19.99 a month. Both pricing levels allow you to access TIDAL's entire music library. The $19.99 tier has the added benefit of high-fidelity sound at CD-level quality.

Built-In Bluetooth: The LG SC9S features built-in Bluetooth 5.0 with support for for wireless audio streaming (A2DP) and control (AVRCP), as well as wireless TV connectivity. You can pair up to multiple devices, but only one device can be connected and used at a time. The system has a wireless Bluetooth range of approximately 33'.

  • Wireless Audio Streaming: You'll be able to wirelessly stream stored music, music apps, and other audio content from your Bluetooth source device (including smartphone, tablet, laptop, or computer) to the LG soundbar system. In addition to the standard SBC Bluetooth codec, the system is also compatible with AAC for higher-quality playback from Apple iOS devices. Basic control (such as Play/Pause and Previous/Next Track) can be done from the included IR remote. Advanced music browsing and song/artist/album display will still need to be done through your Bluetooth source device (not the soundbar).
  • Wireless TV Connection: You can even setup your Bluetooth-enabled TV to stream its audio wirelessly to the LG SC9S soundbar speaker system. When connected to a Bluetooth-enabled TV, the LG SC9S only decodes 2ch audio. Dolby Atmos, DTS:X, Dolby Digital, DTS, and other multichannel audio formats are not supported via Bluetooth. During a wireless Bluetooth connection, you can use the TV's remote or the soundbar's remote to raise and lower the volume.

USB-A 2.0 Port: The rear-panel USB-A 2.0 port allows you to connect a USB MSC (mass storage class) device for playback of select music files, including Hi-Res music files. Your USB MSC device (such as a USB thumbdrive) must be formatted in FAT 16, FAT 32, or NTFS with a maximum total of 2,000 folders and 2,000 files. You can control Folder/File Search, Play/Pause, Previous/Next Track, Random/Repeat from the include IR remote. The USB port is rated at 5V/500mA and can also be used to charge small USB-enabled electronic devices. Compatible music files include -

  • FLAC: 32-192 kHz (176.4 and 192 kHz will be down-converted to 96kHz) / 16 or 24-bit
  • WAV: 32-192 kHz (176.4 and 192 kHz will be down-converted to 96kHz) / 16 or 24-bit
  • MP3: 32-48 kHz / 8-320 kbps
  • AAC: 32- 48 kHz / 8-320 kbps
  • OGG: 32-48 kHz / 64-320 kbps

Note: This USB port does not support playback from Apple or Android iOS devices, laptops or computers, and USB hubs or card-readers.

Control & Mounting Options

Top-Panel Controls: There are 5 buttons on top of the soundbar speaker. The buttons operate Power On/Off, Source Selection, Volume Up, Volume Down, and Bluetooth Pairing.

Remote Control: The LG SC9S soundbar speaker system comes with an IR remote control. It is also pre-programmed to operate with select TV remote controls and supports HDMI-CEC.

  • TV Remote Compatible: You can reduce remote control clutter by using your TV remote to operate the LG soundbar speaker system. Eight brands of television remotes are pre-programmed and currently supported (including LG, Samsung, Sony, Vizio, Philips, Panasonic, Toshiba, Sharp), enabling volume adjustment on the soundbar.
  • HDMI-CEC (SimpLink): Some functions of the soundbar speaker system can also be controlled by your TV's remote when the speaker system and your HDMI-CEC compatible TV are connected via HDMI. Controllable functions by your TV's remote control include power on/off, volume up/down, and mute.

LG Sound Bar App: The LG Sound Bar App (for Apple iOS and Android OS) lets you setup and control various functions of the LG SC9S soundbar and sub system from your compatible smartphone or tablet device. The LG Sound Bar App requires an internet connection between your compatible Apple iOS or Android OS device and the LG SC9S.

Mounting Options: The LG SC9S is designed specifically for LG's 2022-2023 LG evo C Series OLED TVs (55", 65", or 77") with flexible mounting options for the included active soundbar speaker and wireless powered subwoofer. The soundbar should be centered above or below your flat-panel television. Make sure there are no obstructions above the the up-firing Dolby Atmos/DTS:X enabled drivers.

  • Soundbar: The included bracket enables you to place the SC9S soundbar directly below your 2022-2023 LG evo C Series OLED TV, creating a visually seamless and premium look. The bracket, which attaches to the rear of your compatible 55" 65", or 77" LG evo C2/C3 Series OLED TV, can be used to wall-mount or stand-mount the soundbar at a height or location that ensures the best sound experience.
    • When used with a wall-mounted LG evo C Series OLED TV, the included bracket attaches the soundbar directly to the back of the TV (not the actual wall).
    • When used with a tabletop mounted LG evo C Series OLED TV, the included bracket replaces the pedestal stand that originally comes with the TV. As a tabletop stand, the footprint measures 26.75" (w) x 10.125" (d). However, the soundbar measures 38.4375" in width.
  • Subwoofer: Because its wireless, you can place the subwoofer almost anywhere in your room (up to 33' from the soundbar). But, it is better to place the subwoofer near the soundbar for optimum sound quality. Turn it slightly toward the center of the room to reduce the wall reflections.

Note: The LGS SC9S does mount directly to the wall for use with other brands and models of flat-panel TVs that are wall-mounted. The included bracket can also not be used as a tabletop stand for other brands and models of TVs.

Power Requirements: The active soundbar speaker and wireless powered sub will both need to be plugged into an AC wall outlet or surge protector (sold separately - see Accessories Tab). The active soundbar speaker comes with an external AC power adapter with an attached 5' DC cable and a detachable 39" AC power cord. The wireless powered subwoofer comes with a detachable 5' AC power cord.

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Customer Q&A

2 questions already asked

I have a 49" LG SMART TV I purchase in 2015. Is this soundbar compatible?
bobby  Apr 03, 2024
1 answer
Greetings Bobby. Thank you for your question. Your TV would need to have either an HDMI ARC output or an optical output to connect this bar. Enhanced options this bar has will only be available with 2023 and up models.
hogan  Apr 03, 2024 (Staff)
Will this sub/soundbar work well with my Samsung 65" TV that I purchased in 2022?
joseph  Jun 11, 2023
1 answer
The LG SC9S could be used with your 2022 Samsung TV. You would not benefit from some of the LG TV enhanced capabilities/compatibilities, but this would still be useable with other brands of televisions.
zachary  Jun 11, 2023 (Staff)

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