LG 7.1-Channel Soundbar with 12 Wireless Subwoofer Owner's Manual

The LG 7.1-Channel Soundbar with 12 Wireless Subwoofer delivers immersive surround sound with 7.1 channel audio, wireless subwoofer connectivity, multiple input options including HDMI ARC, optical, and Bluetooth, sound modes (Standard, Cinema, Music, Game), voice enhancement, AI Sound Pro, Dolby Atmos and DTS:X support, remote control, wall-mount capability, and auto power on/off. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Wireless Subwoofer Setup 8. Sound Modes and Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 7.1-channel soundbar, Wireless Subwoofer, Remote Control, HDMI ports, Optical input, Bluetooth connectivity, Wall-mount brackets.

FeatureDescription
HDMI ARCAudio Return Channel for single-cable connection to TV
Optical inputDigital audio connection for TV and other devices
BluetoothWireless streaming from mobile devices
Wireless subwoofer12-inch subwoofer with automatic wireless pairing
Sound modesStandard, Cinema, Music, Game presets
AI Sound ProAutomatic sound optimization based on content
Dolby Atmos/DTS:XImmersive 3D audio formats support
Voice enhancementClarifies dialogue and vocals
Wall-mount readyIncludes brackets and template for wall installation
Auto powerTurns on/off with connected TV

Installation

Unpack and inspect contents. Choose placement location.

  1. Position soundbar: Place below TV or mount on wall using included brackets.
  2. Place subwoofer: Position wireless subwoofer within 30 feet of soundbar for optimal connection.
  3. Connect to TV: Use HDMI ARC or optical cable for audio connection.
  4. Plug into AC power: Connect both soundbar and subwoofer to power outlets.

WARNING! Ensure proper ventilation; do not block soundbar vents. Keep away from heat sources.

First-Time Setup

Power on soundbar and subwoofer; follow pairing process.

  1. Automatic subwoofer pairing: Power on both units; they should automatically connect within 30 seconds.
  2. Connect to TV: Use HDMI ARC (preferred) or optical cable to TV audio output.
  3. Select input source: Press INPUT button to cycle through available sources.
  4. Adjust sound settings: Use remote to select preferred sound mode and adjust bass/treble.

CAUTION! Ensure wireless subwoofer is within range and not obstructed by metal objects.

Specifications

Controls and Settings

Front panel: POWER, INPUT, VOLUME, Bluetooth pairing. Remote: POWER, INPUT, VOLUME, MUTE, SOUND MODE, BASS, TREBLE, VOICE, SUBWOOFER LEVEL.

Sound Settings: Sound Mode (Standard, Cinema, Music, Game, AI Sound Pro), Bass adjustment, Treble adjustment, Voice enhancement, Subwoofer level. Connection: Input selection (HDMI, Optical, Bluetooth), Bluetooth pairing. System: Auto power, LED brightness, Factory reset.

Connecting Devices

TV: HDMI ARC or optical cable. Bluetooth devices: Pairing mode. Other sources: Optical input.

  1. Turn off all devices before connecting cables.
  2. HDMI ARC: Connect to TV's HDMI ARC port for best audio quality and control.
  3. Optical: Use digital optical cable if HDMI ARC not available.
  4. Bluetooth: Put soundbar in pairing mode; search and connect from mobile device.

Tip: Enable HDMI-CEC on TV for auto power and volume control synchronization.

Wireless Subwoofer Setup

12-inch wireless subwoofer with automatic pairing.

  1. Placement: Position within 30 feet of soundbar, away from corners for balanced bass.
  2. Power: Plug into AC outlet; power LED should illuminate.
  3. Pairing: Power on soundbar; subwoofer should automatically connect within 30 seconds.
  4. Level adjustment: Use remote SUBWOOFER button to adjust bass level to preference.
  5. Manual pairing: If automatic fails, press and hold pairing button on subwoofer for 3 seconds.

WARNING! Do not place subwoofer in enclosed spaces. Ensure wireless signal path is clear.

Sound Modes and Features

AI Sound Pro: Automatically analyzes content and optimizes sound settings. Sound Modes: Standard (balanced), Cinema (enhanced surround), Music (wide soundstage), Game (spatial audio). Voice Enhancement: Boosts dialogue clarity. Subwoofer Level: Adjustable bass intensity.

Care & Cleaning

Unplug before cleaning. Use soft, dry cloth for exterior. For grille, use soft brush attachment on vacuum.

CAUTION! Do not use liquids or abrasive cleaners. Keep ports and vents clear of dust.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © 2024 LG Electronics; trademarks of LG Electronics Inc. Bluetooth: Bluetooth SIG registered. For support, visit www.lg.com or contact 1-800-243-0000.

Troubleshooting

SymptomPossible CauseCorrective Action
No sound from subwooferWireless connection/powerCheck power; ensure within range; re-pair if needed.
No audio from soundbarInput selection/connectionsVerify input source; check cable connections; ensure TV audio output set correctly.
Bluetooth not connectingPairing mode/rangePut soundbar in pairing mode; ensure device within 30 feet; remove obstacles.
Sound distortionVolume levels/placementReduce volume; check for rattling objects near subwoofer; adjust bass levels.
HDMI ARC not workingCEC settings/cableEnable HDMI-CEC on TV; try different HDMI cable; ensure connected to ARC port.

Reset: Hold POWER and INPUT buttons for 5 seconds to factory reset.

Service: 1-800-243-0000; www.lg.com

LG 7.1-Channel Soundbar with 12 Wireless Subwoofer Owner's Manual © - All Rights Reserved 2025