LG GX 420W 3.1-Channel Soundbar System (2021)

Model #GX

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MSRP: $796.00 ?


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Subwoofer Connectivity Wireless
Amplifier Output 220 W


Channel Configuration 3.1-Channel
Amplifier Output 200 W


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


Wall Mountable Yes, with Included Hardware
Recommended Screen Size 55" and Up
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
Weight 9.3 lb / 4.2 kg (Soundbar)
12.8 lb / 5.8 kg (Subwoofer)

Packaging Info

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


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


Wireless Audio Protocols Bluetooth
Bluetooth 4.0
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


Supported File Systems FAT16, FAT32, NTFS
HDMI Compliance eARC
Sampling Frequencies Up to 192 kHz
Audio Decoding DTS Digital Surround, DTS-HD, DTS:X, Dolby Atmos, Dolby Digital, Dolby Digital Plus, Dolby TrueHD
HDR Compatibility HDR10, Dolby Vision
Supported File Formats FLAC, LPCM, MP3, OGG, WAV, WMA
HDCP Compliance HDCP 2.3
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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