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LG S40TR

LGSoundbar

S40TR

Released April 2024.7Reviewaudio-play.com/product-reviews/lg-s40tr-home-theater-soundbar-reviewRead 16 October 2026Review states the model first became available in April 2024, from its Amazon listing. A US retailer calls it a 2024 model and LDLC Switzerland listed it on 2024-10-24. LG published its 2024 soundbar lineup at CES 2024. The month is the best supported and may be off by a few months. No LG launch announcement for the S40TR was found. Last checked 16 October 2026.

System channel configuration
4.1
Dolby Atmos
No
Separate subwoofer included
Yes
HDMI eARC
No

50 of 98 fields known.

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At a glance

Ports

  • HDMI
  • Optical
  • USB-A
  • DC power

All specs

SourceCalculated

Audio system

System channel configuration
4.11Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026Page name: Home Theater Soundbar with Dolby and Rear Speakers, 4.1 channel.
Physical drivers in the package
54Maker product pagelg.com/in/audio/soundbars/s40trRead 16 October 2026Spec table: number of speakers 5 EA. It is not split by component. The subwoofer and each rear speaker are one speaker per the manual.
Physical drivers in the bar
Not available
Up-firing drivers in the package
Not available
Driver layout
ComponentDriver typeCount
SubwooferWoofer, 1-way, 3 Ω1
Rear speakersFull-range speaker, 1-way, 4 Ω2
Source3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Specifications: wireless subwoofer type 1-way 1 speaker, 3 ohm. Each rear speaker type 1-way 1 speaker, 4 ohm. The manual lists no soundbar driver count. LG lists number of speakers 5 EA, which fits two in the bar, one in the subwoofer and one in each rear speaker, but the bar count is not published and is not stored.
Separate subwoofer included
Yes1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026Key features: home theater surround sound with subwoofer and rear speakers.
Included subwoofer connection
Wireless3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Installation chapter: the wireless subwoofer connects to the soundbar automatically and has its own power cable.
Included subwoofer driver diameter
Not available
Rear speakers included
21Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026Page title and key features: home theater surround sound with subwoofer and rear speakers. The manual covers two rear speakers.
Included rear speaker connection
Wireless1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026Page says wireless rear speakers. Its footnote says the rear speakers need a wired connection between them and one rear speaker needs AC power. Gizmodo says the same. The audio link from the bar is wireless and the manual describes a wireless receiver inside the rear speaker.
Detachable rear speakers
No3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026The rear speakers are separate enclosures. The bar has no detachable ends.
Compatible optional subwoofers
Not available
Compatible optional rear speakers
Not available
Total RMS audio output power
400W4Maker product pagelg.com/in/audio/soundbars/s40trRead 16 October 2026Spec table: output power 400 W. The page does not say RMS. The Spanish page also says 400 W. Retailers describe 100 W for the bar, 200 W for the subwoofer and 100 W for the rear speakers, which sums to 400 W, but no maker document splits it.
Total peak audio output power
Not available
Published frequency response lower limit
Not available
Published frequency response upper limit
Not available

Audio formats

Dolby Atmos
No3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026The manual format list has no Dolby Atmos. Audio-play says the system has no height channels. A Dolby.com listing title names Dolby Atmos among decoders, which does not match the maker list.
DTS:X
No3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026The manual format list has DTS Digital Surround only. No DTS:X is listed.
Supported audio formats
Dolby Digital, DTS Digital Surround, PCM3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Specifications: available digital input audio format Dolby Digital, DTS Digital Surround and PCM. No connection is named.
Audio formats by connection
Not available
Music file formats
MP3, WMA, OGG, FLAC, WAV3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026USB file table: MP3, WMA, OGG, FLAC and WAV. AAC is listed for Bluetooth only.
Max wired audio sample rate
192kHz3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Specifications: available digital input audio sampling frequency 32, 44.1, 48, 88.2, 96, 176.4 and 192 kHz. The manual does not name the HDMI ARC or optical route or the codec.
Max music file sample rate
192kHz3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026USB file table: FLAC and WAV at 16 bit or 24 bit and up to 192 kHz. MP3, WMA and OGG are 48 kHz at most.
Max wired audio bit depth
Not available
Max music file bit depth
24bits3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026USB file table: FLAC (16 bit/24 bit) and WAV (16 bit/24 bit).

Connectivity

Ports on the bar
ConnectorCountRole
HDMI1TV connection with ARC
Optical1Digital audio input
USB-A1USB storage music playback, 5 V 500 mA
DC power1Power input for the supplied AC adapter
Source3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Back panel: DC IN, HDMI TV (ARC), USB port and OPTICAL IN. Specifications: HDMI 19-pin Type A x 1, optical x 1, USB bus power 5 V 500 mA. The USB connector type is not named in text. A type A socket is assumed from the flash drive use that the manual describes.
HDMI ARC
Yes3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Specifications and connection chapter: HDMI TV (ARC) terminal.
HDMI eARC
No3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026The manual and the LG pages list HDMI ARC only. No eARC is named by the maker.
HDMI-CEC
Yes3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026SIMPLINK is described as the HDMI-CEC function. LG pages list CEC (Simplink) yes.
HDMI video passthrough
No3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026The only HDMI connector is the TV ARC output. There is no HDMI input.
Video passthrough modes
Not available
HDR passthrough formats
Not available
VRR passthrough
Not available
ALLM passthrough
Not available
HDCP version
Not available
Bluetooth audio input
Yes3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Bluetooth section: connect a smartphone or LG TV through Bluetooth.
Bluetooth version
5.33Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Bluetooth section: Bluetooth 5.3 technology. LG Spain and India pages also say 5.3. A Reliance Digital listing for S40TR.CINDLLK says 5.1 and is not used.
Bluetooth audio codecs
SBC, AAC3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Bluetooth section: codec SBC and AAC.
Wi-Fi
No6Retailer pageldlc.com/fr-ch/fiche/PB00651234.htmlRead 16 October 2026Retailer table: Wi-Fi Non, Bluetooth Oui. The maker pages list no Wi-Fi.
Wi-Fi standard
Not available
Wi-Fi bands
Not available
Built-in Ethernet speed
Not available

Streaming and control

Streaming protocols
Not available
Voice assistants
Not available
Built-in microphone
Not available
Microphone mute control
Not available
Companion apps
LG ThinQ3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026The manual describes the LG ThinQ app for settings and voice feedback.
Companion app platforms
iOS, Android3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Android 9.0 or higher and iOS 15.0 or higher.
Multiroom audio
No6Retailer pageldlc.com/fr-ch/fiche/PB00651234.htmlRead 16 October 2026Retailer table: Multiroom Non.
Remote included
Yes3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Remote control chapter with AAA battery replacement. LG pages list Remote Control yes.

Sound processing

Sound modes
AI Sound Pro, Standard, Cinema, Game3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Sound effects table: AI Sound Pro, Standard, Cinema and Game.
Automatic room calibration
Not available
Room calibration system
Not available
Dialogue enhancement
Yes1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026Key features: Clear Voice Plus for dialogue clarity.
Night mode
Yes3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Settings button: NIGHT TIME reduces general volume and raises soft sounds.
Equalizer controls
Treble, Mid, Bass, Subwoofer level, Rear speaker level1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026Key features: 3-band equalizer. The manual names the bands treble, mid and bass, and adds subwoofer and rear levels.
TV speaker integration
WOW Orchestra1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026Key features: WOW Orchestra with an LG TV. A footnote says it is only available on select LG TV and soundbar models. The LG India page lists WOW Orchestra yes.

Power

Published operating power
22W4Maker product pagelg.com/in/audio/soundbars/s40trRead 16 October 2026Spec table: power consumption of the main unit 22 W. The rear speaker is 20 W and the subwoofer 35 W, which are excluded. The Spanish page agrees.
Published standby power
0.5W4Maker product pagelg.com/in/audio/soundbars/s40trRead 16 October 2026Spec table: power off consumption of the main unit 0.5 W. The Spanish page shows 0.5 W with a down arrow, so the value is an upper limit. Rear speaker and subwoofer are also 0.5 W.
Published networked standby power
Not available
Power supply
External AC adapter, input 100 to 240 V, 50/60 Hz, output 23.0 V 1.31 A. The wireless subwoofer and the powered rear speaker have their own power cables.3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Specifications: AC adapter A702-230131W-M21, input 100 to 240 V 50/60 Hz, output 23.0 V 1.31 A. Subwoofer and rear receiver power values are on labels and not stated. The powered rear speaker is described in the installation chapter.
Detachable rear battery life
Not available
Detachable rear charge time
Not available

Measured

We could not find any of these 8 fields. Show them
Low-frequency extension (measured)
Not available
High-frequency extension (measured)
Not available
Max sound pressure (measured)
Not available
Frequency response deviation (measured)
Not available
Measured latency
Not available
Operating power (measured)
Not available
Standby power (measured)
Not available
Soundbar weight (measured)
Not available

Dimensions and weight

Front and side, drawn to scale.

Soundbar dimensions
Width720Height63Depth87mm(28.3 × 2.5 × 3.4 in)3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Specifications: approx 720.0 x 63.0 x 87.0 mm including the base.
Soundbar weight
1,650g(3.6 lb)4Maker product pagelg.com/in/audio/soundbars/s40trRead 16 October 2026Spec table: main 1.65 kg. The Spanish and Italian pages agree.
Component dimensions and weight
ComponentWidth (mm)Height (mm)Depth (mm)Weight (g)
Subwoofer1713202524,200
Each rear speaker100176.5120Not available
Rear speaker pairNot availableNot availableNot available2,100
Source3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Specifications: subwoofer approx 171.0 x 320.0 x 252.0 mm. Each rear speaker approx 100.0 x 176.5 x 120.0 mm. Weights come from the LG India page.
Package dimensions
Not available
Package weight
10,000g(22 lb)4Maker product pagelg.com/in/audio/soundbars/s40trRead 16 October 2026Spec table: gross weight 10.0 kg. The Spanish and Italian pages agree.
Wall mountable
Not available

In the box

In the box
Soundbar, Wireless subwoofer, Rear speakers (2), Remote control, AC adapter, Speaker cables for the rear speakers, Cable ties, Warranty card3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026The manual mentions the supplied AC adapter, supplied speaker cables and supplied cable ties. LG pages list remote control and warranty card as accessories.
Wall mount hardware included
Not available
HDMI cable included
Not available
Optical cable included
Not available

General

Series
Not available
Model numbers
S40TR, S40TR.DUSALLK, S40TR.DEUSLLK, S40TR.CINDLLK2Maker product pagelg.com/us/support/product/lg-S40TR.DUSALLKRead 16 October 2026US support page identifies S40TR.DUSALLK. The LG Spanish page shows images named S40TR.DEUSLLK and the LG India page images are named S40TR.CINDLLK.
GTIN / EAN
88060960614045Maker product pagelg.com/es/barras-de-sonido/s40tr-desbRead 16 October 2026Spanish page lists EAN 8806096061404 for the EU model. The Italian page lists the same EAN. The US UPC was not found.
Announced
Not available
Status
Available1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026US page offers the soundbar with Add to Cart at $249.99, shown as $30 off $279.99. Those prices are not launch prices.
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
US, EU, IN1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026US page for the US model. The Spanish, Italian and Indian LG pages carry the same specifications for the EU and India models.4Maker product pagelg.com/in/audio/soundbars/s40trRead 16 October 2026Indian page lists the S40TR with an Indian importer.
Colours
Black1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026US page lists Black as the only colour.

Warranty

Manufacturer warranty (source market)
1year2Maker product pagelg.com/us/support/product/lg-S40TR.DUSALLKRead 16 October 2026US limited warranty: labor 1 year and parts 1 year.

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Sources

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  1. Read 16 October 2026Backs 11 fields
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