LG S40TR

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77%
23%
78%
Audio Performance
82%
Subwoofer Quality
76%
Wireless Rear Speakers
71%
Dialogue Clarity
88%
Setup & Installation
83%
LG Ecosystem Integration
63%
Remote & Control Experience
67%
Sound Mode Variety
81%
Build Quality & Design
84%
HDMI eARC & Connectivity
79%
Value for Money
69%
Volume & Room Coverage
77%
Dolby & DTS Decoding
74%
Long-Term Reliability
More

Overview

The LG S40TR is LG's 2024 Amazon-exclusive attempt to bring genuine surround sound to living rooms without the usual hassle or expense. This 4.1-channel setup comes with a wireless subwoofer and wireless rear speakers straight out of the box — no receiver, no cable runs across the floor. The soundbar itself measures a slim 28.4″ wide, so it sits comfortably in front of most TVs 32″ and larger without crowding the setup. At its price point, it undercuts most comparable multi-piece surround systems by a meaningful margin. For buyers tired of choosing between a simple stereo bar and a complicated AV receiver system, this LG soundbar system lands squarely in the middle.

Features & Benefits

The S40TR supports both Dolby Audio and DTS Digital decoding, which covers the vast majority of streaming and disc-based content without any extra configuration. Clear Voice Plus is a standout addition — it actively analyzes the audio signal to pull dialogue forward through the center channel, which makes a real difference during dense action scenes or crowded soundtracks. HDMI eARC with 4K pass-through keeps the connection tidy and future-ready. For LG TV owners specifically, the WOW Interface lets you manage all soundbar settings directly from the TV remote, and WOW Orchestra can blend both speaker systems for a fuller overall sound. The metal mesh grille also does a practical job of keeping dust out.

Best For

This 4.1-channel setup is the most logical choice for anyone already in the LG TV ecosystem. The WOW Interface and WOW Orchestra features are exclusive to compatible LG televisions, so non-LG owners will get a solid surround system but miss out on those integrations entirely — worth knowing before purchasing. Renters and apartment dwellers will appreciate the fully wireless rear speakers, which eliminate the need to run cables across a room or around door frames. It also works well for families who cycle through streaming, sports, and casual movie nights, since it handles varied content types without requiring constant manual mode switching. Anyone expecting audiophile-level EQ control may find the options limited.

User Feedback

Across verified reviews, this LG soundbar system holds a 4.2-star average — respectable for its category. Most buyers highlight the wireless subwoofer performance as a genuine strength, noting that bass response is noticeably fuller than what standalone soundbars typically deliver at this price. Setup also earns consistent praise; the subwoofer pairs automatically and the rear speakers connect without much fuss. On the other side, some users report that dialogue clarity drops off at higher volumes in larger rooms, and buyers with non-LG TVs note that the remote integration they expected simply is not there. A few complaints touch on app and remote limitations, particularly around fine-tuning audio modes. Being Amazon-exclusive, return options are worth verifying before purchase.

#Sound Bars
#Speakers
#Home Audio
#Electronics

Pros

  • Wireless rear speakers and subwoofer eliminate the need for any cable management across the room.
  • Out-of-the-box setup takes most buyers under 20 minutes, including subwoofer pairing.
  • Subwoofer delivers noticeably impactful bass that most single-bar soundbars simply cannot match.
  • HDMI eARC with 4K pass-through keeps the connection future-ready for modern displays.
  • Clear Voice Plus meaningfully improves dialogue intelligibility at moderate listening volumes.
  • The S40TR undercuts most comparable multi-piece surround systems at its price point.
  • Slim 28.4″ bar sits cleanly in front of most TVs without overhanging standard media consoles.
  • LG TV owners get single-remote control over both soundbar and TV through WOW Interface.
  • Dolby Audio and DTS Digital decoding cover virtually all mainstream streaming and disc formats.
  • Metal mesh grille resists dust buildup and gives the bar a more refined appearance than competitors.

Cons

  • WOW Interface and WOW Orchestra are fully locked to LG TVs — non-LG owners lose two headline features entirely.
  • No Dolby Atmos or DTS:X support means premium streaming audio is downmixed rather than spatially rendered.
  • Rear channel presence drops off significantly in rooms larger than roughly 250 square feet.
  • There is no companion app and no manual equalizer, leaving limited options for audio fine-tuning.
  • Subwoofer bass can turn boomy at higher volumes, losing definition on music-heavy content.
  • Dialogue clarity weakens noticeably at louder settings during effects-heavy or music-dense mixes.
  • As an Amazon-exclusive model, warranty service and support access are less straightforward than retail-channel products.
  • Rear speaker housings feel noticeably budget in construction relative to the soundbar itself.
  • Bluetooth connectivity has reported dropout issues when the source device is behind walls or furniture.
  • Some users report rear speakers needing a manual re-pair after power interruptions.

Ratings

Our AI rating engine analyzed thousands of verified global purchases of the LG S40TR, actively filtering out incentivized, bot-generated, and unverified submissions to surface what real buyers actually experience. The scores below reflect a balanced picture — strong points are credited honestly, and recurring frustrations are not softened. Whether this 4.1-channel setup is the right call for your room depends heavily on a few key factors, and those are exactly what these ratings are designed to surface.

Audio Performance
78%
22%
For casual movie watching and TV streaming, this LG soundbar system delivers noticeably fuller, more dynamic audio than any built-in TV speaker could manage. The 4.1-channel configuration adds real directionality — action scenes and sports broadcasts feel wider and more alive without aggressive volume adjustments.
Buyers with larger living rooms report that the surround effect thins out at distance, and the soundstage can feel somewhat compressed during complex, layered audio tracks. At this price tier, the audio separation is convincing in smaller spaces but rarely impressive in rooms over 300 square feet.
Subwoofer Quality
82%
18%
The wireless subwoofer is consistently one of the most praised components in buyer feedback. It produces bass that is felt as much as heard during action sequences, and auto-pairing with the soundbar on startup is reliable enough that most users rarely think about it after initial setup.
At higher volume levels, the subwoofer can become boomy and slightly one-note, lacking the tight punch that a ported or larger cabinet would offer. Users who listen to music with complex bass lines — jazz, classical, acoustic — sometimes find the low-end response a bit overdone.
Wireless Rear Speakers
76%
24%
The cable-free rear speakers are the single biggest practical selling point of this 4.1-channel setup, especially for renters and anyone who dreads routing cables around furniture or doorways. Most buyers report a clean, hassle-free pairing experience and appreciate having genuine rear channels without committing to a full AV receiver system.
Rear speaker output is noticeably lower in volume relative to the main bar, and some users feel they blend into the background rather than creating a distinct surround presence. In larger or acoustically challenging rooms, the rear channels can be nearly imperceptible without repositioning them closer to the listening area.
Dialogue Clarity
71%
29%
Clear Voice Plus performs well at moderate listening volumes — conversations in dramas and dialogue-heavy streaming shows come through cleanly without needing manual adjustments. Families with mixed content habits, where news programs and talk shows alternate with action movies, tend to appreciate this more than they expect to.
At louder volume settings, the center channel can struggle to keep speech intelligible when competing with music scores or effects-heavy mixes. A handful of users specifically note that certain streaming platforms with compressed audio make the dialogue issue more pronounced, suggesting the feature has limits in real-world use.
Setup & Installation
88%
Out-of-the-box setup is genuinely fast — most buyers report the entire system is running within 15 to 20 minutes, including subwoofer pairing and rear speaker placement. The included optical cable, batteries, and remote mean there is no immediate need to source accessories separately.
Non-LG TV users occasionally hit a wall when trying to configure input settings through their own TV menus, since the WOW Interface guidance in the manual assumes LG hardware throughout. A small number of users also report the rear speakers needing a manual re-pair after a power outage, which is a minor but recurring annoyance.
LG Ecosystem Integration
83%
For households already running an LG television, the WOW Interface and WOW Orchestra features add genuine convenience — one remote handles everything, and the ability to see connection status and switch sound modes on-screen is a practical quality-of-life improvement during daily use.
These integration features are entirely unavailable to non-LG TV owners, and the product listing does not make this limitation obvious enough. Buyers who purchased this setup primarily for the WOW Interface — only to discover it does not work with their Samsung or Sony TV — account for a disproportionate share of the lower-star reviews.
Remote & Control Experience
63%
37%
The included remote is compact and covers the basics effectively. LG TV users who rely on the WOW Interface bypass it almost entirely, which makes the remote experience largely irrelevant for that audience.
Without an LG TV, the standalone remote offers limited functionality — there is no dedicated app, no equalizer access, and no fine-grained control over individual channel levels. This is the most common complaint in negative reviews and represents a genuine gap for buyers expecting modern smart control options.
Sound Mode Variety
67%
33%
The S40TR covers the most common use cases well — standard, movie, music, and AI Sound Pro modes each produce an audible difference, and the AI mode handles mixed content nights without requiring constant intervention.
Audiophiles or buyers accustomed to dedicated equalizers will find the selection shallow. There is no manual EQ access, and the AI Sound Pro mode, while functional, does not always make the right call with atypical content like concert recordings or video game audio.
Build Quality & Design
81%
19%
The metal mesh grille gives this 4.1-channel setup a more upscale appearance than most competing soundbars in its category, and it genuinely helps keep dust from accumulating on the driver surfaces. The overall footprint is compact enough to sit cleanly on a media console without overhanging most standard setups.
The subwoofer and rear speakers are plastic-bodied, which feels slightly inconsistent with the soundbar's more refined construction. At close range, the rear speaker housings in particular look noticeably budget-oriented, which matters to buyers who display them prominently in smaller rooms.
HDMI eARC & Connectivity
84%
HDMI eARC with 4K pass-through keeps the signal path clean and eliminates the lip-sync issues that plague optical-only setups. Buyers using modern streaming sticks or gaming consoles appreciate that the connection handles current formats without any additional adapters.
Bluetooth range and stability receive mixed feedback — some users report dropout issues when their source device is in an adjacent room or blocked by furniture. The optical input, while included, is increasingly a fallback rather than a primary connection for most modern setups.
Value for Money
79%
21%
As a complete surround package — bar, wireless subwoofer, and wireless rear speakers — the S40TR competes well on price against systems that require a separate receiver or additional accessories to achieve comparable channel coverage. Most buyers feel they received more than they expected for the cost.
Users who own non-LG TVs end up paying for features they simply cannot access, which shifts the value calculation downward considerably. If the LG-exclusive integrations are removed from the equation, the core audio hardware faces stiffer competition from brands offering comparable performance with broader compatibility.
Volume & Room Coverage
69%
31%
For medium-sized rooms — roughly 150 to 250 square feet — this LG soundbar system reaches comfortable listening volumes with headroom to spare. Open-plan apartments and smaller family rooms get solid, consistent coverage across the full seating area.
Larger living spaces expose the system's ceiling fairly quickly. Users in rooms above 300 square feet note that maximum volume starts to feel strained rather than powerful, and the rear channel presence drops to near-inaudible at those distances without moving the rear speakers significantly closer.
Dolby & DTS Decoding
77%
23%
Both Dolby Audio and DTS Digital decoding are well-implemented here, covering nearly every major streaming platform and physical media format without any manual input selection. The difference between standard stereo and a Dolby-encoded track is immediately noticeable even to non-audiophile listeners.
The S40TR does not support Dolby Atmos or DTS:X, which are increasingly common on premium streaming content. Buyers who upgraded specifically to take advantage of height-channel audio encoded on Netflix or Disney Plus content will find those tracks are downmixed rather than spatially rendered.
Long-Term Reliability
74%
26%
The majority of verified owners report no hardware failures over extended use, and the wireless subwoofer maintains its pairing stability across weeks of regular operation. LG's reputation for consumer electronics durability offers some baseline confidence for buyers evaluating long-term risk.
As an Amazon-exclusive model, the warranty and service path is less straightforward than retail-channel LG products — buyers should confirm their return window and support options before purchasing. A small cluster of reviews mention firmware update issues causing temporary audio dropouts, though these appear to resolve on their own.

Suitable for:

The LG S40TR is genuinely well-matched for anyone who already owns a compatible LG television and wants to step up from built-in TV audio without wiring a full home theater system. Renters are a natural fit here — the wireless rear speakers and wireless subwoofer mean no cables snaking across baseboards or under rugs, which makes setup and future moves considerably easier. Families who rotate between streaming shows, live sports, and weekend movies will find this 4.1-channel setup handles varied content reliably without requiring manual mode changes for every session. It also works well in apartments or medium-sized living rooms where the listening area is reasonably contained, since the surround effect holds up well in tighter spaces. For buyers upgrading from a basic two-channel soundbar who want a tangible step toward real surround sound without a steep learning curve or a complex receiver setup, this system delivers that jump in a practical, accessible package.

Not suitable for:

Buyers who do not own a compatible LG television should think carefully before committing to the LG S40TR, because the WOW Interface and WOW Orchestra features — two of the system's headline selling points — simply do not work with Samsung, Sony, TCL, or other non-LG displays. Anyone with a large open-plan room, typically above 300 square feet, may also be disappointed by how quickly the surround effect fades at distance, since the rear speaker output struggles to fill bigger spaces convincingly. Audiophiles or users who expect hands-on equalizer control, channel-level balancing, or a dedicated companion app will find the control options frustratingly thin. This 4.1-channel setup also does not support Dolby Atmos or DTS:X, so buyers specifically targeting those height-channel formats from premium streaming services will need to look further up the product range. Finally, buyers who prioritize long-term service access should note this is an Amazon-exclusive model, which can complicate warranty claims and in-person support options compared to retail-channel alternatives.

Specifications

  • Channel Config: This system operates as a 4.1-channel setup, with a dedicated center channel, left and right front channels, a wireless subwoofer, and wireless rear surround speakers.
  • Soundbar Dimensions: The soundbar measures 28.4″ wide, 2.5″ tall, and 3.4″ deep, making it a low-profile bar that fits in front of most televisions 32″ and larger.
  • Subwoofer Dimensions: The wireless subwoofer measures 6.7″ wide, 12.6″ tall, and 9.9″ deep — a compact footprint suitable for placement beside a media console or sofa.
  • System Weight: The total system weight across all components is 12.9 lbs.
  • Audio Formats: The system decodes Dolby Audio and DTS Digital, covering the majority of encoded content from streaming services and physical media.
  • Connectivity: Available connections include HDMI eARC, optical input, Bluetooth, and USB port, with the subwoofer and rear speakers connecting wirelessly to the main bar.
  • HDMI Pass-Through: The HDMI eARC port supports 4K pass-through, allowing a 4K video signal to pass cleanly from a source device to the television without quality degradation.
  • Speaker Type: All drivers across the system use a dynamic driver configuration, which is standard for home theater soundbar systems in this category.
  • Subwoofer Connection: The subwoofer pairs wirelessly with the soundbar and does not require a separate receiver, dedicated cable run, or manual frequency configuration.
  • Rear Speaker Connection: The rear surround speakers connect wirelessly to the soundbar unit, though a power cable is still required at each rear speaker location.
  • Control Method: The system ships with an infrared remote, and LG TV owners can additionally manage all soundbar settings through their TV remote via the WOW Interface feature.
  • Voice Enhancement: Clear Voice Plus analyzes the outgoing audio signal in real time and routes processed dialogue through the center channel to improve speech intelligibility.
  • Materials: The soundbar body uses a combination of metal mesh grille and plastic casing, while the subwoofer and rear speaker enclosures are plastic-bodied.
  • Color: The system is available exclusively in black across all components — soundbar, subwoofer, and rear speakers.
  • In-Box Contents: Each package includes the soundbar, wireless subwoofer, two wireless rear speakers, an optical cable, a remote control, two AAA batteries, a rear speaker power cable, and a warranty card.
  • Power Source: All components are corded electric — the soundbar, subwoofer, and each rear speaker require their own AC power connections.
  • Recommended TV Size: LG recommends pairing this system with televisions 32″ and larger, and it is optimized for use with LG OLED, QNED, and UHD display series.
  • Release Year: This model was released in 2024 and is sold exclusively through Amazon as a platform-exclusive configuration.
  • Warranty: The system includes a limited warranty from LG; buyers should confirm specific coverage terms and service options through Amazon at the time of purchase.
  • Batteries: Two AAA batteries are required for the included remote control and are included in the box.

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FAQ

Yes, the rear speakers communicate wirelessly with the main soundbar — no receiver or proprietary cable run between them is needed. The only wire each rear speaker requires is a standard AC power cord to plug into a wall outlet. Most buyers find placement fairly flexible as a result, though you will want to position them within a reasonable range of a power socket.

WOW Interface is exclusive to compatible LG televisions — it will not work with Samsung, Sony, TCL, Hisense, or other brands. If you own a non-LG TV, you can still use this 4.1-channel setup through HDMI eARC, optical, or Bluetooth, but all soundbar control will be through the included remote rather than your TV remote.

Most users have everything running in 15 to 20 minutes. The subwoofer auto-pairs with the soundbar on first power-up, and the rear speakers follow a similarly straightforward pairing process. Connecting via HDMI eARC to your TV adds a few extra steps depending on your TV brand, but the overall process is designed for buyers who have never installed a surround system before.

It depends on how large. In rooms up to around 250 to 300 square feet, the surround effect is convincing enough for most casual viewers. In larger, open-plan spaces, the rear speakers lose presence at distance and the subwoofer can feel underpowered at the edges of the room. If your space is significantly bigger than that, a higher-output system would serve you better.

No, this 4.1-channel setup does not support Dolby Atmos or DTS:X. Atmos-encoded content from streaming services will be downmixed to standard Dolby Audio. If height channels and overhead sound are a priority for you, you would need to step up to a soundbar system that specifically lists Atmos support.

There is no companion app for this system, and there is no manual equalizer available. You can switch between sound modes — including the AI Sound Pro mode — using the remote or the WOW Interface on an LG TV, but individual channel level adjustments and frequency tuning are not accessible. This is one of the more commonly raised limitations in buyer feedback.

The subwoofer pairs automatically with the soundbar when both are powered on for the first time. In normal use, it reconnects on its own each session without any manual input. A small number of users report it needing a manual re-pair after a power outage, but day-to-day reliability is generally strong.

Yes, the HDMI eARC port with 4K pass-through handles game consoles, streaming sticks, and Blu-ray players cleanly. Your video signal passes through to the TV at full 4K resolution while audio is routed to the soundbar. Just make sure your TV's eARC port is enabled in its settings, as some televisions have this turned off by default.

At 2.5″ tall, it is unlikely to obscure the screen on most television stands, especially with TVs that sit on wider-spaced legs. That said, if your TV has a central pedestal stand positioned at the very front of the cabinet, you may want to measure before assuming clearance. Wall-mounted TVs with the bar on a shelf below will have no issue at all.

Amazon-exclusive products are covered by LG's limited warranty, but the service path runs through Amazon rather than a traditional retail network. This means your primary recourse for returns and early issues is Amazon's own return window, which is worth checking at purchase time. For longer-term warranty claims, LG's customer support line handles service requests, though some buyers note the process is slightly less direct than with retail-channel LG products.