LG GX 420W 3.1-Channel Soundbar System

Model #GX

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Amplifier Output 220 W
Subwoofer Connectivity Wireless


Channel Configuration 3.1-Channel
Amplifier Output 200 W


Power Consumption 33 W (Subwoofer)
< 0.5 W (Soundbar, Subwoofer, Standby)


Weight 9.3 lb / 4.2 kg (Soundbar)
12.8 lb / 5.8 kg (Subwoofer)
Dimensions 56.7 x 5.9 x 1.2" / 144 x 15 x 3 cm (Soundbar)
8.7 x 15.4 x 12.3" / 22.1 x 39.1 x 31.2 cm
Recommended Screen Size 55" and Up
Wall Mountable Yes, with Included Hardware

Packaging Info

Box Dimensions (LxWxH) 60.5 x 17 x 10.35"
Package Weight 33.5 lb


Operating Humidity 5 to 90%
Operating Temperature 41 to 95°F / 5 to 35°C


Wireless Audio Protocols Bluetooth
USB Ports 1 x USB (Version Unspecified) (Audio) (Side)
Outputs 1 x HDMI - eARC/Audio/Video
Inputs 1 x HDMI - Audio/Video
1 x Optical TOSLINK - Audio
Bluetooth 4.0


Audio Decoding DTS Digital Surround, DTS-HD, DTS:X, Dolby Atmos, Dolby Digital, Dolby Digital Plus, Dolby TrueHD
HDMI Compliance eARC
HDR Compatibility HDR10, Dolby Vision
HDCP Compliance HDCP 2.3
Supported File Formats FLAC, LPCM, MP3, OGG, WAV, WMA
Supported File Systems FAT16, FAT32, NTFS
Sampling Frequencies Up to 192 kHz
Product Highlights
  • 3.1-Channel Configuration
  • Up to 420W of Total Power
  • Dolby Atmos & DTS:X Support
  • Bluetooth Audio Streaming
  • External Wireless Subwoofer
  • HDMI & Optical Inputs
  • HDMI Output with eARC
  • High-Resolution Audio Playback
  • Includes Soundbar Wall Mount Bracket
In The Box
  • LG GX 420W 3.1-Channel Soundbar System
  • Remote Control
  • AAA Batteries
  • Optical Cable
  • Wall Mount Bracket
  • Limited 1-Year Warranty
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