Soundbars / Compare

LG S70TR vs Yamaha SR-B40A

A

Product A: LG

S70TR

64 of 98 known

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B

Product B: Yamaha

SR-B40A

49 of 98 known

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Every value links to where we found it.

Only differences

ALG S70TR

BYamaha SR-B40A

Audio system

12 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.

5.1.11Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Speakers: Channel 5.1.1 ch.

Not available

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.

91Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Features text: With 9 total speakers. This is the 6 bar speakers, the subwoofer and the 2 rear speakers.

73Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

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.

62Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 20269 speakers in total (LG USA) minus the subwoofer and the 2 rear speakers, each listed as 1 speaker in the manual specifications. The manual does not state the bar count itself.

63Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

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.

11Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Product highlights: Up-Firing Center Channel Yes. Features: up-firing center speaker.

Not available

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 S70TR

Component	Driver type	Count	Orientation
Soundbar	Up-firing center speaker	1	Up-firing
Soundbar	Other speakers (types and sizes not published)	5	Not available
Subwoofer	1-way speaker	1	Not available
Rear speakers	1-way speaker, one per rear speaker	2	Not available

Source2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Specifications: the wireless subwoofer is 1-way 1 speaker and each rear speaker is 1-way 1 speaker. LG states 9 speakers in total, so the bar has 6. The up-firing center speaker is the top center speaker for overhead sound. The other 5 are not described by type or size.

BYamaha SR-B40A

Component	Driver type	Count	Diameter (mm)
Soundbar	Full-range cone (front left and right)	4	46
Soundbar	Dome tweeter	2	25
Subwoofer	Cone woofer	1	160

Source3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Specifications: sound bar front L/R 4.6 cm cone x 4 and 2.5 cm dome tweeter x 2. Subwoofer 16 cm cone x 1, bass reflex. Converted from the published cm.

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-s70tr-home-theater-soundbarRead 23 October 2026

Yes3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

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

Wireless1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Connectivity: Wireless Active Subwoofer Yes. The subwoofer has its own AC power cable (user manual).

Wireless3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 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

160mm3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

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-s70tr-home-theater-soundbarRead 23 October 2026Warranty group: Rear Speaker Included Yes. Features text: 2.0 Ch rear surround speakers. Footnote: the rear speakers require a wired connection between them and one rear speaker requires AC power.

03Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

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

Wireless2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Installation: the rear speakers connect to the soundbar automatically after power-up, with a LED on the rear speaker and a pairing button. The wireless receiver is in the rear speaker. The two rear speakers are joined by a speaker cable and one of them needs AC power.

Not available

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

No2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026The rear speakers are separate enclosures with their own receiver and are not bar end sections.

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.

500W3Maker product pagelg.com/ca_en/speakers/soundbars/s70trRead 23 October 2026General: 5.1.1 channels, 9 speakers, 500 W output.4Maker product pagelg.com/in/audio/soundbars/s70trRead 23 October 2026General: output power 600 W reference (THD 30 percent) and 500 W rated (THD 10 percent). The 500 W rated figure is stored. The 600 W figure is not called a peak or maximum rating, so it is not stored.

Not available

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

200W3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Maker lists maximum rated output power 50 W x 2 channels for the bar and 100 W for the subwoofer. The Yamaha USA specs page totals 200 W. Rating conditions are not stated.

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

33Hz3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Subwoofer 33 Hz to 210 Hz. The maker publishes ranges per component and no single system figure.

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

Not available

22kHz3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Front L/R 210 Hz to 22 kHz. Tweeter 9 kHz to 22 kHz. Per component, no tolerance stated.

Audio formats

7 of 9 differ

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

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Audio Format: Dolby Atmos Yes.

Yes2Maker product pageusa.yamaha.com/products/audio_visual/sound_bar/sr-b40a/specs.htmlRead 13 October 2026Specs page lists Dolby Atmos as the sound technology and Dolby TrueHD, Dolby Digital Plus and Dolby Digital as Yes. DTS Digital Surround is No.

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

Yes2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Specifications: available digital input audio format includes DTS:X. Page 34: eARC supports DTS-HD Master Audio, DTS:X, Dolby TrueHD and Dolby Atmos. The LG USA table says DTS:X No, which conflicts.3Maker product pagelg.com/ca_en/speakers/soundbars/s70trRead 23 October 2026Audio formats list includes DTS:X.5Maker product pagelg.com/uk/tvs-soundbars/qned/55qned86t6a-us70trRead 23 October 2026LG UK bundle page for the US70TR, the UK model of the S70TR: Dolby Atmos and DTS:X fill your room with a 500W 5.1.1ch surround sound system, subwoofer, and rear speakers. The page was read in Chrome. Cookies were rejected.

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, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos, DTS Digital Surround, DTS-HD High Resolution Audio, DTS-HD Master Audio, DTS:X, PCM1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Audio Format table on this page: Dolby Atmos, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, DTS Digital Surround and LPCM Yes. The same table says DTS:X, DTS-HD High Resolution and DTS-HD Master Audio No. The manual, LG UK, LG Canada and LG India state DTS:X, so the manual list is stored.2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Specifications, Available Digital Input Audio format: Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos, DTS Digital Surround, DTS-HD HRA, DTS-HD MA, DTS:X and PCM. The LG USA table lists fewer DTS formats.

Linear PCM, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

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.

ALG S70TR

Connection	Format	Max input channels
HDMI eARC	Dolby TrueHD	Not available
HDMI eARC	Dolby Atmos	Not available
HDMI eARC	DTS-HD Master Audio	Not available
HDMI eARC	DTS:X	Not available
HDMI input	Dolby Atmos	Not available
HDMI input	DTS:X	Not available
HDMI input	PCM	6

Source2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Page 34: eARC supports DTS-HD Master Audio, DTS:X, Dolby TrueHD and Dolby Atmos. Page 37: Dolby Atmos or DTS:X from an external device on HDMI IN supports 3.1.1 channels, and 5.1.1 with the rear speakers. The PCM 5.1 (6 channel) row over HDMI IN comes from the LG Digital Customer Care answer on the Best Buy page. No other maximum channel counts are published.9Retailer pagebestbuy.com/product/lg-5-1-1-channel-s70tr-home-theater-soundbar-with-wireless-subwoofer-and-rear-speakers-dolby-atmos-wow-orchestra-black/JJ8VPZQWVTRead 23 October 2026Questions and Answers: LG Digital Customer Care replies that the S70TR supports 5.1 channel PCM through the HDMI input. This gives the PCM row with 6 channels. The page was read in Chrome. Best Buy lists 499.99 USD and a current price, not a launch price.

BYamaha SR-B40A

Connection	Format	Max input channels
HDMI eARC	Linear PCM	8
HDMI eARC	Dolby Digital	Not available
HDMI eARC	Dolby Digital Plus	Not available
HDMI eARC	Dolby TrueHD	Not available
HDMI eARC	Dolby Atmos	Not available
HDMI ARC	Linear PCM	2
HDMI ARC	Dolby Digital	Not available
HDMI ARC	Dolby Digital Plus	Not available
HDMI ARC	Dolby Atmos	Not available
Optical	Linear PCM	2
Optical	Dolby Digital	Not available

Source3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Supported digital audio signal formats tables. eARC: 2-channel PCM, multichannel PCM up to 7.1 channels (8), and Dolby Digital, TrueHD, Digital Plus and Atmos bitstreams. ARC: 2-channel PCM, Dolby Digital, Digital Plus and Atmos. Optical: 2-channel PCM and Dolby Digital. The tables do not state Atmos transport per format.

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

MP3, WMA, AAC, FLAC, WAV1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Audio Format table: MP3 and WAV Yes, WMA No. The manual playable file table lists MP3, WMA, AAC, FLAC and WAV, so the manual list is stored.2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Playable file specifications over USB: MP3, WMA and AAC at 32 to 48 kHz, FLAC and WAV (16 bit or 24 bit) at 32 to 192 kHz.

Not available

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.

192kHz2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Specifications: available digital input audio sampling frequency 32, 44.1, 48, 88.2, 96, 176.4 and 192 kHz. The line names no connection or codec. LG markets High Resolution Audio up to 24bit/96kHz, so the sources differ. The manual figure is stored.

96kHz3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026PCM over HDMI eARC, HDMI ARC and optical: up to 96 kHz. Multichannel PCM over eARC also tops out at 96 kHz.

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.

192kHz2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Playable file specifications: FLAC and WAV up to 192 kHz over USB.

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.

24bits1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Product highlights: High Resolution Audio up to 24bit/96kHz. The line names no input or codec, so this is the route-independent maker figure.

24bits3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Same tables: PCM at 16, 20 and 24-bit on eARC, ARC and optical.

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.

24bits2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Playable file specifications: FLAC and WAV 16 bit or 24 bit over USB.

Not available

Connectivity

8 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 S70TR

Connector	Count	Role
HDMI	1	HDMI IN for an external source, with video passthrough to the TV
HDMI	1	HDMI OUT to the TV, eARC and ARC
Optical	1	Optical digital audio input
USB-A	1	Music playback from a USB storage device, 5 V 500 mA
AC power	1	Soundbar power input

Source2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Specifications input and output and the back panel: AC IN, HDMI IN, HDMI TV (eARC / ARC), USB port and OPTICAL IN. USB bus power 5 V 500 mA. The subwoofer and rear speakers connect wirelessly.

BYamaha SR-B40A

Connector	Count	Role
HDMI	1	TV connection with eARC or ARC (HDMI OUT)
Optical	1	Digital audio input
USB-A	1	Firmware update only
AC power	1	Soundbar power input

Source3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Specifications: one OPTICAL input, one HDMI OUT/TV (eARC/ARC) and one USB marked UPDATE ONLY. Power cords are listed for the bar and subwoofer.

HDMI ARC

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Convenience: HDMI ARC Yes.

Yes3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

HDMI eARC

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Convenience: HDMI eARC Yes.

Yes3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

HDMI-CEC

Yes2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026SIMPLINK is LG's name for HDMI-CEC.

Yes2Maker product pageusa.yamaha.com/products/audio_visual/sound_bar/sr-b40a/specs.htmlRead 13 October 2026

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

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Product highlights: 4K Passthrough (HDCP 2.3) Yes.

No3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026The only HDMI connector is the TV output. A device other than a TV cannot be connected with the HDMI cable.

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

ALG S70TR

Width (px)	Height (px)	Refresh rate (Hz)
3840	2160	120

Source2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026HDMI TV (eARC / ARC) output: 4K resolution is supported for 4K sources with HDCP 2.3, 4K@120 Hz (YCbCr 4:2:0). 4K is stored as 3840 x 2160.

BYamaha SR-B40A

Not available

HDR passthrough formats

Dolby Vision, HDR101Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Product highlights: Dolby Vision and HDR10 Passthrough Yes.

Not available

VRR passthrough

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Connectivity: Gaming Enhanced VRR/ALLM Yes (Up to 120 Hz). One line covers both features.

Not available

ALLM passthrough

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Connectivity: Gaming Enhanced VRR/ALLM Yes (Up to 120 Hz). One line covers both features.

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.

2.31Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Product highlights: 4K Passthrough (HDCP 2.3).2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026HDCP 2.3 for 4K sources.

Not available

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

Yes2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026The soundbar plays music from a Bluetooth device. Function button selects Bluetooth.

Yes3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

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

5.12Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Connecting via Bluetooth: Bluetooth 5.1 technology. LG India and LG Canada also say 5.1. The LG Brazil, Italy and Hungary pages show 5.3 in their tables, which this manual does not.

5.13Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Bluetooth Ver 5.1, Class 1, A2DP, sink function only.

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

SBC, AAC2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Connecting via Bluetooth: Codec SBC, AAC.

SBC, AAC3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Sink function: SBC and MPEG4-AAC.

Wi-Fi

Not available

No2Maker product pageusa.yamaha.com/products/audio_visual/sound_bar/sr-b40a/specs.htmlRead 13 October 2026Specs page lists Wi-Fi No, AirPlay No and MusicCast Surround No for the SR-B40A.

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

1 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 ThinQ2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026The manual says to use the LG ThinQ app for the product functions. The LG USA page calls it a Smartphone Remote App.

Sound Bar Remote3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Free Sound Bar Remote app. Tone control works only in the app.

Companion app platforms

iOS, Android1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Convenience: Smartphone Remote App (iOS/Android) iOS / Android OS.

iOS, Android3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

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

Not available

Not available

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

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Included accessories: Remote Control Yes.

Yes3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

Sound processing

4 of 7 differ

Sound modes

AI Sound Pro, Standard, Cinema, Clear Voice Pro, Sports, Music, Game, Bass Blast1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Sound Modes: AI Sound Pro, Bass Blast +, Cinema, Game, Music, Sports, Standard. The US list has no Clear Voice Pro. The manual and LG Canada list it.2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Sound effects: AI Sound Pro, Standard, Music, Cinema, Clear Voice Pro, Sports, Game and Bass Blast (Bass Blast+). Stored as one Bass Blast mode.

Stereo, Standard, Movie, Game3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026One stereo mode and three surround modes: Standard, Movie and Game.

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

Not available

Room calibration system

Not available

Not available

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

Yes2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Clear Voice Pro sound effect improves the clarity of voices.

Yes3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

Night mode

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Convenience: Night Mode Yes.2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Settings: NIGHT TIME reduces the general volume and raises soft sounds.

Not available

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

Bass, Mid, Treble, Subwoofer level, Center level, Rear level1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Convenience: Customize EQ Remote / App Yes.2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Sound tuning: Treble, Mid and Bass from -6 to 6, Subwoofer from -15 to 6, Center from -6 to 6 and Rear from -6 to 6.

Treble, Bass, Subwoofer level, Bass Extension3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Tone control in the app adjusts treble and bass from -6 to +6. The remote has an independent subwoofer level control. Bass Extension is an on or off function.

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-s70tr-home-theater-soundbarRead 23 October 2026Product highlights: WOW Orchestra Yes. The manual says it works on some LG TV and soundbar models over HDMI with eARC enabled.

Not available

Power

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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.

33W3Maker product pagelg.com/ca_en/speakers/soundbars/s70trRead 23 October 2026Power consumption: main unit 33 W, rear speakers 20 W and subwoofer 33 W. Only the main unit is stored. Retailer totals of 66 W (MediaMarkt, bar and subwoofer) and 106 W (bar, subwoofer and two rear speakers) add the other parts.

25W3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Sound bar power consumption 25 W. The subwoofer is listed separately at 20 W rated.

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

0.5W3Maker product pagelg.com/ca_en/speakers/soundbars/s70trRead 23 October 2026Standby 0.5 W for the main unit, the rear speakers and the subwoofer.

0.3W3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Sound bar standby 0.3 W with HDMI Control and Bluetooth Standby off.

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

2W6Maker spec sheet (PDF)lg.com/uk/lgecs.downloadFile.ldwfRead 23 October 2026WEB INFO document for the US70TR, the UK model of the S70TR, linked from the LG UK page: standby 0.5 W, networked standby 2.0 W, also 2.0 W with all network ports activated. The document does not cover the US model code. It is the EU power management information.

0.6W3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Sound bar standby 0.6 W with HDMI Control and Bluetooth Standby on. The bar has no Wi-Fi.

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

Not available

Sound bar: AC 100 to 120 V, 50/60 Hz (US, Canada, Taiwan and Mexico models). The wireless subwoofer has its own power cord, AC 100 to 120 V, 50/60 Hz.3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

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.

Width950Height63Depth115mm(37.4 × 2.5 × 4.5 in)2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Approx. 950.0 x 63.0 x 115.0 mm (W x H x D) including the base.

Width910Height68Depth133mm(35.8 × 2.7 × 5.2 in)3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Sound bar installed in front of a TV: 910 x 68 x 133 mm. With wall spacers: 910 x 66 x 139 mm.

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

3,000g(6.6 lb)3Maker product pagelg.com/ca_en/speakers/soundbars/s70trRead 23 October 2026Weights: main unit 3.0 kg. The US page gives 6.6 lbs.

2,900g(6.4 lb)3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Sound bar 2.9 kg (6.4 lb). Subwoofer 8.1 kg (17.9 lb).

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 S70TR

Component	Width (mm)	Height (mm)	Depth (mm)	Weight (g)
Subwoofer	200	377	285	5,700
Rear speaker (each)	100	176.5	120	Not available
Rear speakers (set of 2)	Not available	Not available	Not available	2,100

Source2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Wireless subwoofer approx. 200.0 x 377.0 x 285.0 mm and rear speakers each approx. 100.0 x 176.5 x 120.0 mm (W x H x D) including the base. Weights come from the LG Canada page.3Maker product pagelg.com/ca_en/speakers/soundbars/s70trRead 23 October 2026Weights: subwoofer 5.7 kg and rear speakers (pair) 2.1 kg. The US page gives 12.7 lbs for the subwoofer.

BYamaha SR-B40A

Component	Width (mm)	Height (mm)	Depth (mm)	Weight (g)
Subwoofer SR-WSWB40A	194	419	407	8,100

Source3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

Package dimensions

Width1,013.5Height454.7Depth259.1mm(39.9 × 17.9 × 10.2 in)1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Carton Size (WxHxD) 39.9 x 17.9 x 10.2 in. Converted exactly and rounded to 0.1 mm. The LG USA sheet for the S70TY gives the same carton size.

Not available

Package weightiShipping package including supplied components and packaging.

15,400g(34 lb)3Maker product pagelg.com/ca_en/speakers/soundbars/s70trRead 23 October 2026Weights: gross 15.4 kg. LG India and LG Spain give the same figure. The US page gives 33.9 lbs, which is 15.38 kg.

Not available

Wall mountable

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Features: this soundbar can be mounted on the wall. A wall mount bracket is in the box.2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Mounting the Product to a Wall section.

Yes1Maker product pageusa.yamaha.com/products/audio_visual/sound_bar/sr-b40a/index.htmlRead 13 October 2026Page lists built-in keyholes for wall mounting.

In the box

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In the box

Soundbar, Wireless subwoofer, Rear speakers (2), Remote control, HDMI cable, Optical cable, Rear speaker cable, Wall mount bracket, Wall bracket installation guide1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Included accessories: HDMI cable, optical cable, rear speaker cable, remote control, wall mount bracket. Rear Speaker Included Yes. The soundbar and subwoofer are the product itself. The manual adds the wall bracket installation guide. LG Canada and LG India list no optical cable for their markets.2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Page 47: components for mounting are the wall bracket, soundbar screws and the wall bracket installation guide. Page 24: the remote uses two AA batteries, and the manual does not say they are supplied.

Soundbar, Wireless subwoofer, Remote control, Remote battery (CR2025), Two power cords, HDMI cable (1.5 m), Mounting template, Two spacers, Quick guide, Safety guide3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026Confirming the included items: sound bar, subwoofer SR-WSWB40A, remote with CR2025 battery, two power cords, 1.5 m HDMI cable, mounting template, two spacers, quick guide and safety guide.

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

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Included accessories: Wall Mount Bracket Yes. The manual lists the wall bracket, soundbar screws and a wall bracket installation guide as components. Bracket screws and wall plugs are sold separately.

Not available

HDMI cable included

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Included accessories: HDMI Cable Yes.

Yes3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

Optical cable included

Yes1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Included accessories: Optical Cable Yes, US. The LG Canada page does not list an optical cable.

No3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026No optical cable is in the included items list.

General

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Series

Not available

Not available

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

S70TR2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Cover lists model S70TR (S70TR, SPT5-W, SPT8-S, SPT8-SPK). SPT5-W is the subwoofer and SPT8-S the rear speakers. The UK model US70TR and the German model DS70TR are stored as aliases.

SR-B40A, SR-B40ABL1Maker product pageusa.yamaha.com/products/audio_visual/sound_bar/sr-b40a/index.htmlRead 13 October 2026Yamaha USA page for the SR-B40A bar with wireless subwoofer. SR-B40ABL is the US SKU used by retailers. The subwoofer model SR-WSWB40A comes from the user guide.

GTIN / EAN

195174074367, 88060919693851Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026UPC 195174074367 in the Warranty group. The EAN 8806091969385 comes from the LG Spain page for S70TR.DESB.10Maker product pagelg.com/es/barras-de-sonido/s70tr-desbRead 23 October 2026LG Spain page for S70TR.DESB lists EAN 8806091969385. It is a Spanish SKU. The base list holds every option.

0271089619274Retailer pageworldwidestereo.com/products/yamaha-sr-b40a-dolby-atmos-sound-bar-with-wireless-subwooferRead 13 October 2026US retailer lists model SR-B40ABL with UPC 027108961927. The ABL suffix is the black US SKU as listed by the retailer.

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

March 20247Press articleareadvd.de/news/lg-stellt-neue-soundbars-fuer-2024-vorRead 23 October 2026Same article of 2024-03-13 lists the DS70TR in LG's 2024 soundbar range. A second AREA DVD special of 2024-03-19 gives the same.

20 July 20235Press releaseusa.yamaha.com/news_events/2023/yamaha-expands-its-lineup-of-dolby-atmos-sound-bars.htmlRead 13 October 2026

Status

Available1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026The page offers the soundbar for sale at 499.99 USD. This is a current price and not a launch price.

Available1Maker product pageusa.yamaha.com/products/audio_visual/sound_bar/sr-b40a/index.htmlRead 13 October 2026The Yamaha USA product page, specs and downloads pages are live in 2026. The page offers no price.

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

$399.955Press releaseusa.yamaha.com/news_events/2023/yamaha-expands-its-lineup-of-dolby-atmos-sound-bars.htmlRead 13 October 2026US press release: SR-B40A $399.95 MSRP. Tax treatment is 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.

€5997Press articleareadvd.de/news/lg-stellt-neue-soundbars-fuer-2024-vorRead 23 October 2026LG DS70TR from July 2024 at 599 euros. The article does not state VAT, and a German list price normally includes VAT. No US launch price was found. The 499.99 USD on LG USA is a current price.

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, CA, GB, DE, ES, IN8Spec databasegeizhals.at/lg-ds70tr-a3189592.htmlRead 23 October 2026Geizhals lists DS70TR.ADEULLK (Germany and Austria) as 500 W 5.1.1 with a wireless subwoofer and 2 wireless surround speakers, 950 x 63 x 115 mm. US and Canada from the LG USA and LG Canada pages. United Kingdom from the LG UK page. Spain from the LG Spain page. India from the LG India page.10Maker product pagelg.com/es/barras-de-sonido/s70tr-desbRead 23 October 2026Spain from this page. The page lists the same dimensions and weights as the other LG pages.

US1Maker product pageusa.yamaha.com/products/audio_visual/sound_bar/sr-b40a/index.htmlRead 13 October 2026

ColoursiThe maker's own colour names

Black1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Warranty group: Color Black.

Not available

Links

Not compared

Product page

www.lg.com/us/soundbars/lg-s70tr-home-theater-soundbar1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026LG USA product page, read in Chrome because curl returns 403. Specifications tab expanded with the See All toggle.

usa.yamaha.com/products/audio_visual/sound_bar/sr-b40a/index.html1Maker product pageusa.yamaha.com/products/audio_visual/sound_bar/sr-b40a/index.htmlRead 13 October 2026

Spec sheet

Not available

Not available

Manual

ch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdf2Owner's manualch3j39t5.media.zestyio.com/S70TR.AUSALLK_WEB.pdfRead 23 October 2026Owner's manual 2407_Rev02, 66 pages, for S70TR (S70TR, SPT5-W, SPT8-S, SPT8-SPK). It is a media CDN copy of the LG manual. The LG USA support page lists a newer English file dated 07/09/2026 that could not be downloaded.

usa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdf3Owner's manualusa.yamaha.com/files/download/other_assets/8/1624438/web_AV23-0002_SR-B40A_ug_UABGRIN_En_B0.pdfRead 13 October 2026

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.

1year1Maker product pagelg.com/us/soundbars/lg-s70tr-home-theater-soundbarRead 23 October 2026Limited Warranty 1 Year Parts and Labor, US.

Not available

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