LG USC9S 3.1.3 Soundbar 400W with Wireless Subwoofer

Bring cinema-level sound into your home cinema or gaming setup with the LG USC9S 3.1.3 wireless soundbar, designed for users who want immersive, detailed audio without the complexity of a full surround system. Built to enhance movies, TV, sports and gaming, it delivers a rich three-dimensional soundstage that transforms everyday entertainment into a theatre-style experience.

At the heart of the system is a 3.1.3 channel layout with 9 integrated speakers, including up-firing drivers that create height and depth for Dolby Atmos and DTS:X audio. This ensures sound doesn’t just come from the front of the room, but surrounds and flows around you for a more realistic and engaging experience whether you're watching films or playing games.

Powered by 400W of total output, the system delivers strong, balanced performance across dialogue, effects and bass. The wireless subwoofer adds deep low-end impact, while Meridian Sound Technology enhances clarity and precision, ensuring every detail is delivered with accuracy and depth even at higher volumes.

Triple AI Sound Optimiser automatically analyses what you’re watching and adjusts audio output to suit your space and content. From clear dialogue in dramas to explosive action scenes or detailed game audio, the sound is continuously refined for optimal listening without manual adjustment.

For seamless modern connectivity, the LG USC9S supports Chromecast built-in, Apple AirPlay, Spotify Connect and Tidal Connect, allowing effortless streaming from smartphones, tablets and laptops. HDMI eARC and optical connections ensure easy integration with TVs, consoles and media devices, while 4K pass-through maintains high-quality visuals alongside premium audio.

With LG WOW Orchestra and TV Sound Mode Share, compatible LG TVs can combine their built-in speakers with the soundbar for an expanded, more immersive sound field. Voice assistant compatibility with Google Assistant and Alexa adds convenient hands-free control for everyday use.

Ideal for home cinema setups, gaming rooms and entertainment-focused living spaces, this LG soundbar delivers premium surround sound performance with smart features and refined audio tuning in a streamlined, modern design.

Features

• 3.1.3 channel sound system with 9 speakers for immersive cinematic surround sound
• Dolby Atmos and DTS:X support for true 3D audio with height, depth and directional effects
• Wireless subwoofer delivers powerful, controlled bass without cable clutter
• 400W total audio output for rich, room-filling performance
• Meridian Sound Technology for enhanced clarity, detail and high-resolution tuning
• Triple AI Sound Optimiser automatically adjusts audio based on content and room environment
• WOW Orchestra and TV Sound Mode Share for enhanced integration with compatible LG TVs
• Built-in Chromecast, Apple AirPlay and Spotify Connect for seamless music streaming
• HDMI eARC and Optical connectivity for flexible setup with TVs and consoles
• Multiple sound modes including Cinema, Game, Music and Clear Voice Pro for tailored listening

Specifications

• Model: LG USC9S
• System Type: 3.1.3 channel soundbar with wireless subwoofer
• Total Output Power: 400W
• Number of Speakers: 9
• Speaker Configuration: Soundbar + wireless subwoofer
• Audio Technologies: Dolby Atmos, Dolby TrueHD, Dolby Digital Plus, DTS:X, DTS-HD Master Audio
• Sound Enhancement: Meridian Technology, AI Sound Pro, Triple AI Sound Optimiser
• High-Resolution Audio Support: Yes
• Video Pass-Through: 4K, Dolby Vision, HDR10 support
• Connectivity: HDMI eARC, Optical input, USB, Bluetooth 5.0, WiFi
• Streaming Support: Chromecast built-in, Apple AirPlay, Spotify Connect, Tidal Connect
• Voice Assistant Support: Amazon Alexa and Google Assistant compatible
• Soundbar Power Output: 180W
• Subwoofer Power Output: 220W
• Soundbar Dimensions: 63 x 975 x 125 mm
• Subwoofer Dimensions: 390 x 221 x 313 mm
• Soundbar Weight: 4.1 kg
• Subwoofer Weight: 7.8 kg
• Power Consumption (On): 65W
• Standby Power: 0.5W
• Colour: Black