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LG S90TR 670W 7.1.3-Channel Dolby Atmos Soundbar System with Wireless Rear Speakers

BH #LGS90TR • MFR #S90TR.DUSALLK
69 reviews
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LG S90TR 670W 7.1.3-Channel Dolby Atmos Soundbar System with Wireless Rear Speakers
Key Features
  • True 7.1.3-Channel Configuration
  • 670W Total RMS Power
  • Left, Right, Center Dolby Atmos Speakers
  • Wireless Rear Speakers & Subwoofer
Immerse yourself in true Dolby Atmos surround sound with the S90TR 7.1.3-Channel Soundbar System from LG. Create a spatial audio dome that fills even the largest rooms with Dolby Atmos and DTS:X compatibility. Enjoy flexibility in placement and optimal sound quality with true wireless surround speakers and AI enhanced room calibration. Connect sources via HDMI, Optical, and USB inputs, or stream music wirelessly with Wi-Fi or Bluetooth connectivity. Additionally, you can combine the S90TR with a compatible LG TV using LG's WOW Orchestra and Interface for even more immersive sound and control convenience.
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LG S90TR Overview

Immerse yourself in true Dolby Atmos surround sound with the S90TR 7.1.3-Channel Soundbar System from LG. Create a spatial audio dome that fills even the largest rooms with Dolby Atmos and DTS:X compatibility. Enjoy flexibility in placement and optimal sound quality with true wireless surround speakers and AI enhanced room calibration. Connect sources via HDMI, Optical, and USB inputs, or stream music wirelessly with Wi-Fi or Bluetooth connectivity. Additionally, you can combine the S90TR with a compatible LG TV using LG's WOW Orchestra and Interface for even more immersive sound and control convenience.

True Surround with Dolby Atmos and DTS:X
Packing 670W of total RMS Power, the S90TR soundbar component consists of 70W two-way front-firing left and right speakers, a 35W front-firing center-channel speaker, 35W side-firing left and right middle-surround speakers, and three 35W up-firing height-channel speakers, including the unique up-firing center channel to enhance dialog clarity. With a powerful 220W subwoofer and 50W wireless rear speakers, the S90TR sets the stage for a fully immersive, cinematic experience.
WOW Orchestra
Create the perfect harmony using the audio from your compatible LG TV and LG Soundbar to produce the ultimate listening experience. Use the LG TV and LG Soundbar speakers combined while using one remote to adjust the settings interchangeably.
Advanced AI Room Calibration
Using the built-in microphone, this soundbar precisely measures the dimensions of the room where it is installed. AI then analyzes this spatial information and optimizes audio settings accordingly. You get a richer, deeper, and clearer surround sound experience, with no distortion or delay as well as flexibility in how you set up your speakers.
Additional Features
  • 3D Spatial Sound is available in CINEMA / AI Sound Pro Mode
  • Works with Google and Alexa voice assistants
  • Works with Airplay 2 and Chromecast
  • Stream Tidal and Spotify directly via Wi-Fi
  • LG TV Sound Sync
  • Supports audio resolution up to 24-bit / 96 kHz
UPC: 195174083550

LG S90TR Specs

Key Specs
Channel Configuration
7.1.3-Channel
Low-Frequency Drivers
0x
Midrange Drivers
2x Front-Firing
High-Frequency Drivers
2x Front-Firing
Full-Range Drivers
1x Front-Firing
3x Up-Firing
2x Side-Firing
Amplifier Output
280 W RMS
Satellite Speaker Configuration
Full-Range
Subwoofer Driver
1
Subwoofer Amplifier Output
220 W RMS
Subwoofer Inputs/Outputs
Wireless
Inputs
1x HDMI - Audio/Video
1x Optical TOSLINK - Audio
Outputs
1x HDMI - eARC
Wireless
Wi-Fi 4 (802.11n) / Bluetooth 5.1
Audio Decoding
DTS Digital Surround, DTS-HD, DTS-HD High-Resolution, DTS-HD Master Audio, DTS:X, Dolby Atmos, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, PCM
HDMI Compliance
ARC, CEC, eARC
Wall Mountable
Yes (with Optional Hardware)
Soundbar
Channel Configuration
7.1.3-Channel
Low-Frequency Drivers
0x
Midrange Drivers
2x Front-Firing
High-Frequency Drivers
2x Front-Firing
Full-Range Drivers
1x Front-Firing
3x Up-Firing
2x Side-Firing
Amplifier Output
280 W RMS
Impedance
6 Ohms (Soundbar)
Total Harmonic Distortion (THD)
10%
Satellite Speakers
Speaker Positioning
Rear
Speaker Configuration
Full-Range
Full-Range Drivers
2x Front-Firing
Power Rating
50 W RMS per Speaker
Satellite Inputs/Outputs
Wireless
Total Harmonic Distortion (THD)
10%
Placement & Mounting Options
Rear:
Tabletop/Bookshelf
Wall-Mount (with Optional Hardware)
Subwoofer
Enclosure Type
Bass-Reflex
Drivers
1
Amplifier Output
220 W RMS
Impedance
3 Ohms
Total Harmonic Distortion (THD)
10%
Subwoofer Inputs/Outputs
Wireless
Connectivity
Inputs
1x HDMI - Audio/Video
1x Optical TOSLINK - Audio
Outputs
1x HDMI - eARC
USB I/O
1x USB-A (Unspecified Interface) (Audio, Power)
Ethernet I/O
No
Wireless Audio Protocols
AirPlay 2, Bluetooth, Chromecast built-in, Proprietary
Wireless
Wi-Fi 4 (802.11n) / Bluetooth 5.1
Bluetooth
Bluetooth 5.1
NFC
No
Bluetooth Codec Support
AAC
SBC
Mobile App Compatible
Yes: Android & iOS
Compatibility
Audio Decoding
DTS Digital Surround, DTS-HD, DTS-HD High-Resolution, DTS-HD Master Audio, DTS:X, Dolby Atmos, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, PCM
Sampling Frequencies
Up to 192 kHz
HDMI Compliance
ARC, CEC, eARC
HDR Support
Yes: HDR10/Dolby Vision
HDCP Support
Yes: Version 2.3
Supported File Formats
AAC, FLAC, MP3, OGG, WAV
Supported File Systems
FAT16, FAT32, NTFS
Physical
Environmental Resistance
No
Operating Conditions
41 to 104°F / 5 to 40°C at 5 to 80% Humidity
Wall Mountable
Yes (with Optional Hardware)
Recommended Screen Size
55" and Up
Dimensions
49.2 x 2.5 x 5.3" / 125 x 6.4 x 13.5 cm (Soundbar)
7.9 x 16 x 15.9" / 20.1 x 40.6 x 40.4 cm (Subwoofer)
3.9 x 6.9 x 4.7" / 9.9 x 17.5 x 11.9 cm (Satellites)
Weight
12.5 lb / 5.7 kg (Soundbar)
22.1 lb / 10 kg (Subwoofer)
5.1 lb / 2.3 kg (Each Satellite)
Packaging Info
Package Weight
55.5 lb
Box Dimensions (LxWxH)
52.5 x 22.5 x 10.5"

LG S90TR Reviews

WiFi Connectivity is rough

By William
Rated 2 out of 5
Date: 2026-09-17

If you’re able to get it set up, it sounds pretty decent though I wish the upward firing speakers were a bit more pronounced. It’s the WiFi connectivity that is a really frustrating experience. It only accepts 2.4/5ghz networks so if you have a newer network with 6ghz, good luck. I split my networks and had to set it up again, and still doesn’t work right away. Reset, pair attempt, reset, pair attempt. Almost to the point that I want to get it replaced because it’s not working as it should.

S95TR sounds bar

By My new sound system
Rated 5 out of 5
Date: 2026-03-13

It's a system that totally integrated with my LG tv very easy to set up or I was able to find readily available info for my purposes online.

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