Soundbars / Compare

LG S40TR vs TCL S55H

A

Product A: LG

S40TR

50 of 98 known

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B

Product B: TCL

S55H

56 of 98 known

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Every value links to where we found it.

Only differences

ALG S40TR

BTCL S55H

Audio system

13 of 17 differ

System channel configurationiMaker-stated channel layout of the exact package, such as 5.1.2. This can include virtual channels. It is not a count of physical drivers. Optional speakers do not count.

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.

2.11Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Product title and spec table: 2.1 channel sound bar system with wireless subwoofer.

Physical drivers in the packageiCount of physical active speaker drivers across the supplied bar, subwoofer and rear speakers. Passive radiators, microphones and virtual channels do not count. A coaxial driver, such as KEF Uni-Q, counts once, as makers count it.

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.

31Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table lists Total Speakers 3 for the 2.1 system.

Physical drivers in the bariCount of physical active speaker drivers in the soundbar alone. Passive radiators and virtual channels do not count. A coaxial driver, such as KEF Uni-Q, counts once, as makers count it.

Not available

22Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Not published directly. Derived from the maker's Total Speakers 3 minus the single 5.5 inch subwoofer driver. The bar driver layout is not published.

Up-firing drivers in the packageiPhysical active drivers explicitly firing upwards across the supplied package. Virtual height channels and passive radiators do not count. A driver that fires upwards only when the bar is wall mounted is not counted.

Not available

07Press articlegizmodo.com/tcl-soundbar-now-priced-like-budget-earbuds-and-the-wireless-subwoofer-is-basically-free-dolby-atmos-dtsx-auto-room-calibration-2000777326Read 15 October 2026Gizmodo says Dolby Atmos is handled virtually, with no upward-firing drivers. Maker documents list no up-firing drivers.

Driver layoutiPublished physical driver layout for the supplied components. A row names one driver type in one component. Do not translate channel count into driver count.

ALG S40TR

Component	Driver type	Count
Subwoofer	Woofer, 1-way, 3 Ω	1
Rear speakers	Full-range speaker, 1-way, 4 Ω	2

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.

BTCL S55H

Component	Driver type	Count	Diameter (mm)
Subwoofer	Woofer	1	139.7

Source2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Only the subwoofer row is stored. The 5.5 inch (139.7 mm) woofer comes from the product page. The sound bar drivers are not described by the maker.

Separate subwoofer includediA separate powered subwoofer is supplied with the reference package. A built-in woofer does not count.

Yes1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026Key features: home theater surround sound with subwoofer and rear speakers.

Yes1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026

Included subwoofer connectioniAudio link used by the supplied separate subwoofer. Wireless subwoofers can still require an AC power cable.

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.

Wireless1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026

Included subwoofer driver diameteriPublished diameter of an active driver in the supplied separate subwoofer. Do not use enclosure size or passive radiator size.

Not available

139.7mm1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Feature text: wireless subwoofer with a 5.5 inch driver. Converted exactly to 139.7 mm.

Rear speakers includediCount of separate rear speaker enclosures supplied with the reference package. Detachable bar ends count when usable as rears. Optional rear speakers do not count.

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.

02Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Box contents list no rear speakers.

Included rear speaker connectioniAudio link to the supplied rear speaker enclosures. Their power connection is separate.

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.

Not available

Detachable rear speakersiThe bar has supplied detachable end sections usable as separate 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.

Not available

Compatible optional subwoofersiMaker-named compatible additional subwoofer models. These do not contribute to the reference package layout, dimensions or measurements.

Not available

Not available

Compatible optional rear speakersiMaker-named compatible additional rear speaker models. These do not contribute to the reference package layout, dimensions or measurements.

Not available

Not available

Total RMS audio output poweriMaker-stated RMS or rated continuous amplifier output for the exact supplied package. Peak or unspecified maximum claims do not qualify. Distortion, load and rating conditions belong in the source note. Power consumption is separate.

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.

56.6W2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Specifications page gives FTC Power Output Rating 26.6 W for the sound bar and 30 W for the subwoofer. The 56.6 W total is their sum. Distortion and load are not stated. Sound bar impedance 8 ohm, subwoofer 4 ohm.

Total peak audio output poweriMaker-stated peak or maximum amplifier output for the exact supplied package. This is separate from RMS or continuous output and from electrical consumption. Rating conditions belong in the source note.

Not available

220W1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table Total Audio Power 220 and the feature list say up to 220 watts total power. One overview paragraph on the same page says up to 200 watts. 220 is stored. No rating conditions or RMS label are given.

Published frequency response lower limitiMaker-published lower limit for the exact supplied package. Tolerance and test conditions belong in the source note. Reviewer extension measurements are separate.

Not available

40Hz2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Subwoofer frequency response is 40 Hz-180 Hz. The lower limit of the system is the subwoofer lower limit.

Published frequency response upper limitiMaker-published upper limit for the exact supplied package. Tolerance and test conditions belong in the source note.

Not available

20kHz2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Sound bar frequency response is 180 Hz-20 kHz. The upper limit of the system is the sound bar upper limit. No tolerance is stated.

Audio formats

7 of 9 differ

Dolby AtmosiExplicit support for Dolby Atmos playback. Transport codec and connection restrictions belong in source notes.

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.

Yes1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026

DTS:XiExplicit support for DTS:X playback. Virtual surround processing alone does not establish DTS:X decoding.

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.

Not available

Supported audio formatsiAudio formats explicitly decoded by the device. Codec and connection restrictions belong in source notes. Bluetooth codecs and music-file formats are separate.

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.

Dolby Atmos1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table Dolby Processing: Dolby Atmos. DTS Virtual:X is listed as a processing feature, not as a decoded format.

Audio formats by connectioniExplicitly supported audio decoding combinations. Max input channels counts decoded input audio channels, including LFE. A 5.1 layout has 6 channels and 7.1 has 8. Output speaker layouts and Atmos objects do not count. Atmos over Dolby Digital Plus and over Dolby TrueHD are separate rows. Format support on one input does not prove support on another.

Not available

Not available

Music file formatsiPublished local or network music-file playback formats. Playback route and app restrictions belong in source notes.

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.

MP3, WMA, WAV, FLAC2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026USB playback supports MP3, WMA, WAV and FLAC on devices up to 64 GB, within 5 folder levels.

Max wired audio sample rateiHighest explicitly published supported sample rate for decoded wired audio input. Name the exact HDMI, ARC, eARC or optical connection and codec in source notes. This is the published route limit, not proof of a device-wide maximum across all inputs. Local or network music-file limits and Bluetooth do not qualify. A chipset limit is not device evidence.

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.

Not available

Max music file sample rateiHighest explicitly published supported local or network music-file sample rate. Name the playback route and file format in source notes. This is the published route and format limit, not proof of a device-wide maximum across all music formats. Wired HDMI or optical input and Bluetooth are separate.

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.

Not available

Max wired audio bit depthiHighest explicitly published supported bit depth for decoded wired audio input. Name the exact HDMI, ARC, eARC or optical connection and codec in source notes. This is the published route limit, not proof of a device-wide maximum across all inputs. Local or network music-file limits and Bluetooth do not qualify.

Not available

Not available

Max music file bit depthiHighest explicitly published supported local or network music-file bit depth. Name the playback route and file format in source notes. This is the published route and format limit, not proof of a device-wide maximum across all music formats. Wired HDMI or optical input and Bluetooth are separate.

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).

Not available

Connectivity

3 of 17 differ

Ports on the bariPhysical connectors on the soundbar alone. Record input, output, ARC or eARC, service, subwoofer and power roles explicitly. Count identical connectors per row. Component connectors are described in source notes.

ALG S40TR

Connector	Count	Role
HDMI	1	TV connection with ARC
Optical	1	Digital audio input
USB-A	1	USB storage music playback, 5 V 500 mA
DC power	1	Power 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.

BTCL S55H

Connector	Count	Role
HDMI	1	HDMI eARC/ARC connection to the TV
Optical	1	Digital audio input
3.5 mm audio	1	AUX audio input
USB-A	1	Music playback and firmware update, 5 V 500 mA max
AC power	1	Detachable AC power cord input

Source2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Overview of the Sound Bar: AC input, AUX, HDMI (eARC), optical and USB Type A. USB is 5 V 500 mA max and is also used for firmware updates.

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.

Yes1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026

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.

Yes1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table lists HDMI eARC with the value 2.0. The meaning of 2.0 is not explained, so no port version is stored.

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.

Yes2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Manual tells the user to enable CEC on the TV for the HDMI eARC connection.

HDMI video passthroughiCan pass video from a dedicated HDMI source input to a television output. ARC or eARC alone does not qualify.

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.

No1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table: HDMI Input No. The only HDMI connector is the eARC connection to the TV.

Video passthrough modesiPublished supported passthrough combinations, not inferred maxima at untested resolutions. State chroma, bit depth, HDR and firmware restrictions in source notes.

Not available

Not available

HDR passthrough formats

Not available

Not available

VRR passthrough

Not available

Not available

ALLM passthrough

Not available

Not available

HDCP versioniHighest HDCP version the maker states for an HDMI port of the soundbar, such as 2.3. When the source inputs and the TV output differ, the source input version is stored. A bar with no HDMI input stores the version of its TV output, also when that output carries video from a built-in streaming player.

Not available

Not available

Bluetooth audio inputiCan receive audio from a Bluetooth source. A Bluetooth remote alone does not qualify.

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.

Yes2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026

Bluetooth versioniPublished version of the soundbar audio connection. An optional remote or detachable rear can use a different 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.

5.32Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Specifications page: Bluetooth 5.3 with A2DP and AVRCP. The product page says 5.2. The manual is used. No codec list is published.

Bluetooth audio codecsiExplicitly supported codecs for received Bluetooth audio. A Bluetooth version alone does not establish a codec.

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.

Not available

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.

No6Reviewwhich.co.uk/reviews/sound-bars/tcl-s55hRead 15 October 2026Which? lists No Wi-Fi. The maker manual lists only Bluetooth, USB and wired inputs.

Wi-Fi standardiPublished Wi-Fi standards for the soundbar, written as 802.11 names without IEEE, such as "802.11a/b/g/n/ac/ax". A Wi-Fi generation is written as its standard, so Wi-Fi 5 is "802.11ac" and Wi-Fi 6 is "802.11ax". Do not infer the standard from frequency bands.

Not available

Not available

Wi-Fi bandsiPublished radio bands, such as 2.4 GHz and 5 GHz.

Not available

Not available

Built-in Ethernet speediRated speed of the built-in port. An optional adapter does not count.

Not available

Not available

Streaming and control

2 of 8 differ

Streaming protocolsiNamed network playback protocols, such as AirPlay 2, Google Cast, Spotify Connect and Tidal Connect. Bluetooth is separate.

Not available

Not available

Voice assistantsiNamed assistants supported by the soundbar. Built-in and external-device routes and market restrictions belong in source notes.

Not available

Not available

Built-in microphoneiPhysical microphone in the bar for voice or calibration. An external setup phone or remote microphone does not count.

Not available

Not available

Microphone mute controliA physical control on the soundbar explicitly disables its built-in voice microphone. State whether this is an electrical switch or software-controlled button when known.

Not available

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.

TCL Home2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026The sound bar can be fully controlled with the TCL Home app.

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.

iOS, Android8Maker product pagesupport.tcl.com/en_US/tcl-home-app-overviewRead 15 October 2026TCL support page says the TCL Home app runs on iOS 10.0 or higher and Android 5.0 or higher. The manual says to download the app from the app stores. The support page lists air conditioning and air purifier products and does not name sound bars. The S55H manual says the sound bar can be fully controlled with the TCL Home app.

Multiroom audioiCan play synchronised audio with other rooms through a supported network platform. Optional surround expansion alone does not qualify.

No6Retailer pageldlc.com/fr-ch/fiche/PB00651234.htmlRead 16 October 2026Retailer table: Multiroom Non.

Not available

Remote includediA separate remote control supplied with the reference package. Phone apps and TV remotes do not count.

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.

Yes1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table: Remote Control Yes, with 2 AAA batteries.

Sound processing

5 of 7 differ

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.

Standard, Movie, Music, Voice, Game, Sports2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Remote cycles Standard, Movie, Music, Voice, Game and Sports. Separate Surround Enhance and Voice Enhance levels exist.

Automatic room calibrationiExplicit acoustic measurement or analysis used to adapt playback to the room. Manual EQ alone does not qualify. Setup phone requirements belong in source notes.

Not available

Yes1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026

Room calibration system

Not available

TCL AI Sonic-Adaptation2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Remote key opens the AI Sonic-Adaptation menu with Position 1, 2, 3 and OFF scenes. Scenes take effect only after being set in the TCL Home app.

Dialogue enhancementiA dialogue or voice mode counts, also when the maker lists it as an EQ preset.

Yes1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026Key features: Clear Voice Plus for dialogue clarity.

Yes2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Voice mode and a Voice Enhance key on the remote.

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.

Yes2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Night Mode key on the remote.

Equalizer controlsiPublished user-adjustable EQ controls. Bass and treble controls are distinct from multi-band EQ.

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.

Bass, Treble2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Treble and bass keys on the remote.

TV speaker integrationiNamed features allowing compatible television speakers to play with the bar. TV models and connection requirements belong in source notes.

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.

TCL Tutti Choral2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026TCL Tutti Choral adds an Internal Speaker+Sound Bar (HDMI) TV output option. It works with some TCL TVs only. The launch release calls a related feature TV as Center Channel Mode.

Power

2 of 6 differ

Published operating poweriMaker-published operating electrical consumption of the soundbar alone. Included subwoofer and rear-speaker consumption do not count. Keep workload and method in source notes. Audio amplifier output is separate.

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.

38W2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Sound bar power consumption 38 W. The subwoofer is listed separately at 50 W.

Published standby poweriMaker-published non-networked standby consumption of the bar alone. Networked standby and other components are separate.

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.

0.5W2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Published as < 0.5 W after a 3 second long press of the power button. The manual also lists < 2 W with the TCL Home app on after 19 minutes without signal. That figure is not stored as networked standby.

Published networked standby poweriMaker-published networked standby consumption of the bar alone. Enabled radio and network conditions belong in source notes.

Not available

Not available

Power supplyiPublished AC input range or external DC adapter arrangement. Electrical input ratings are not operating consumption.

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.

Sound bar: AC 100-240 V, 50/60 Hz. The wireless subwoofer has its own power cord, AC 100-240 V, 50/60 Hz.2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Sound bar and subwoofer each list AC 100-240 V, 50/60 Hz.

Detachable rear battery lifeiMaker-stated runtime of the supplied detachable rear speakers. Volume, mode and recharge conditions belong in source notes.

Not available

Not available

Detachable rear charge timeiMaker-stated full recharge time of supplied detachable rear speakers. Charging route belongs in source notes.

Not available

Not available

Measured

None of 8 known

Low-frequency extension (measured)iReviewer-measured lower extension for the exact tested package. Test threshold, mode, room correction and configuration belong in source notes.

Not available

Not available

High-frequency extension (measured)iReviewer-measured upper extension for the exact tested package. Test threshold and configuration belong in source notes.

Not available

Not available

Max sound pressure (measured)iReviewer-measured maximum sound pressure. Signal, distance, sound mode and supplied or optional speaker configuration belong in source notes.

Not available

Not available

Frequency response deviation (measured)iReviewer-measured standard error against the stated target. Target, averaging range, preset and test method belong in source notes.

Not available

Not available

Measured latencyiReviewer-measured audio latency. Keep source/TV, firmware, codec, synchronisation correction and exact tested speaker configuration in source notes. Negative offsets are valid when the method reports them.

Not available

Not available

Operating power (measured)iReviewer-measured operating consumption of the soundbar alone. Optional or supplied external speakers do not count. Workload and enabled radio conditions belong in source notes.

Not available

Not available

Standby power (measured)iReviewer-measured bar-only standby consumption. Network state and test conditions belong in source notes.

Not available

Not available

Soundbar weight (measured)iReviewer-measured bar-only weight. Excludes subwoofer, rears, mounting hardware and cables.

Not available

Not available

Dimensions and weight

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Soundbar dimensionsiBar alone in its normal tabletop orientation, without detachable rears, wall brackets or external cables. A source that includes detachable ends must use component_dimensions instead. A size labelled L x W x H, as on Amazon, is width x depth x height.

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.

Width810Height59.9Depth98mm(31.9 × 2.4 × 3.9 in)2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Published as 31.89 x 2.36 x 3.86 in (W x H x D). Converted exactly and rounded to 0.1 mm.

Soundbar weightiBar alone, without detachable rears, subwoofer, wall brackets or external cables. Source-published masses including detachable ends belong in component_dimensions.

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.

2,046g(4.5 lb)2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Published as 4.51 lb. Converted exactly and rounded to 1 g.

Component dimensions and weightiPublished dimensions and mass for named supplied components, including a bar with detachable rears attached when stated. Each row describes one enclosure, not the pair, unless the component label explicitly states a set. Width, height and depth use normal installed orientation.

ALG S40TR

Component	Width (mm)	Height (mm)	Depth (mm)	Weight (g)
Subwoofer	171	320	252	4,200
Each rear speaker	100	176.5	120	Not available
Rear speaker pair	Not available	Not available	Not available	2,100

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.

BTCL S55H

Component	Width (mm)	Height (mm)	Depth (mm)	Weight (g)
Subwoofer	195.1	320	195.1	3,062

Source2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Subwoofer 7.68 x 12.6 x 7.68 in (W x H x D) and 6.75 lb, converted exactly. The product page gives the same values.

Package dimensions

Not available

Width875Height257Depth326.9mm(34.4 × 10.1 × 12.9 in)1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table Package Size (WxHxD) 34.45 x 10.12 x 12.87 in. Converted exactly and rounded to 0.1 mm.

Package weightiShipping package including supplied components and packaging.

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.

6,754g(14.9 lb)1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table Package Weight 14.89 lb. Converted exactly and rounded to 1 g.

Wall mountable

Not available

Yes1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026

In the box

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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.

Sound bar, Wireless subwoofer, Remote control, 2 AAA batteries, 2 power cords, HDMI cable, 2 wall mount brackets, 2 wall mounting screws (M5 x 40 mm), 2 wall anchors, Wall mount template, Warranty card, Manual2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026Manual What is in the box. The product page spec table also lists an RCA 3.5 mm cable as Yes, which the manual does not show. The manual says the audio cable is not supplied. The cable is left out.

Wall mount hardware includediSupplied bar mounting brackets or mount. Screws alone do not establish that a complete mount is included.

Not available

Yes1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table: Wall Mount kit Yes. The manual shows 2 brackets, 2 screws, 2 anchors and a template.

HDMI cable included

Not available

Yes1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table lists an HDMI cable and the product page says free HDMI cable.

Optical cable included

Not available

No1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table: Optical Cable No. The manual box contents list no optical cable.

General

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Series

Not available

S Class1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026Spec table title: TCL S Class - S55H.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

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.

S55H1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026

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.

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

13 May 20245Press articleaphnetworks.com/news/28662-tcl-reveals-2024-soundbars-dolby-atmos-and-auto-calibrationRead 15 October 2026Article of 2024-05-13 reports the TCL announcement of the 2024 sound bars.

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.

Available1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

$219.994Press articlegstylemag.com/2024/05/15/tcl-2024-sound-bars-dolby-atmosRead 15 October 2026The S55H is available for 219.99 USD MSRP. US price, tax treatment not stated.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

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.

US4Press articlegstylemag.com/2024/05/15/tcl-2024-sound-bars-dolby-atmosRead 15 October 2026US launch.

ColoursiThe maker's own colour names

Black1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026US page lists Black as the only colour.

Not available

Links

Not compared

Product page

www.lg.com/us/soundbars/lg-s40tr-home-theater-soundbar1Maker product pagelg.com/us/soundbars/lg-s40tr-home-theater-soundbarRead 16 October 2026

us.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streaming1Maker product pageus.tcl.com/products/tcl-s55h-s-class-2-1-channel-sound-bar-with-dolby-atmos-wireless-subwoofer-and-bluetooth-music-streamingRead 15 October 2026

Spec sheet

Not available

Not available

Manual

www.manualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.html3Owner's manualmanualslib.tech/guide/739600/lg-s40tr-spt41-w-spt8-s-spt8-spk-manual.htmlRead 16 October 2026Copy of the LG owner's manual for S40TR with subwoofer SPT41-W and rear speakers SPT8-S and SPT8-SPK, on a manual library. The LG US support page lists an owner's manual PDF but gives no direct link.

static.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdf2Owner's manualstatic.helpjuice.com/helpjuice_production/uploads/upload/image/5306/6031216/S55H-US_UM_V2.2_20260106.pdfRead 15 October 2026S55H-US_UM_V2.2, dated 2026-01-06.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

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

1year3Maker product pagetclusa.helpjuice.com/tcl-sound-bar-warranty-informationRead 15 October 2026TCL North America sound bar warranty: one year for parts and labor for non-commercial use, for units bought new from an authorized dealer in the US or Canada.

Both are also in the API. Back to all soundbars.