The LG S40TR is a 4.1-channel home theater soundbar system that aims to bring surround sound to smaller living spaces without a massive investment. It comes with a wireless subwoofer and actual rear satellite speakers, which is still somewhat rare at this price point. After spending a few weeks with it in a typical apartment living room, here is a realistic look at what it does well and where it falls short.
Out of the box, setup is straightforward. The soundbar connects to your TV via HDMI ARC or optical cable, and the subwoofer and rear speakers pair wirelessly to the main unit. The included remote is basic but functional. The Wow Interface is a nice touch—it overlays simple controls on compatible LG TVs, reducing the need to juggle remotes. For everyday use, this system is easy enough for anyone to get running in minutes.
In real-world usage, the S40TR does a decent job of filling a medium-sized room with sound. The front soundbar handles dialogue and main audio clearly, and the rear speakers add noticeable ambient effects during movies and games. Explosions and action scenes have more presence than a standard TV speaker, and the wireless subwoofer provides a thump that you can feel, though it is not particularly tight or nuanced. For casual movie nights or streaming shows, the soundstage feels wider and more immersive than a typical soundbar alone.
Key features include support for Dolby Audio (not Atmos, which is expected at this level) and AI Sound Pro, which attempts to automatically adjust sound modes based on content. In practice, AI Sound Pro works reasonably well for switching between movies and music, but it can sometimes make dialogue sound a bit hollow or overly processed. You might prefer to manually select a standard or cinema mode for clearer speech. The system also includes Bluetooth for streaming music from a phone or tablet, which is convenient but audio quality is average—fine for background listening, not critical sessions.
However, there are clear limitations. The rear speakers are small and lack the power and separation you would get from a higher-end setup. They add some sense of space, but the surround effect is subtle rather than dramatic. The subwoofer, while adding bass, can sound boomy in rooms with hard floors or poor acoustics, and there is no way to adjust its crossover frequency. The soundbar itself has a somewhat narrow soundstage; it does not project sound as wide as some competitors with more drivers or Dolby Atmos virtualization. Additionally, the build quality feels a bit plasticky, and the overall volume maxes out at levels that are adequate for a living room but might not satisfy those wanting to rattle windows.
Compared to a traditional 5.1 home theater system with separate speakers and an AV receiver, the S40TR is far simpler and cheaper, but it cannot match the clarity, power, or precise channel separation of a dedicated setup. It is more comparable to other budget soundbar systems like the Vizio V-series or Samsung’s entry-level offerings. The main advantage here is the inclusion of actual rear speakers, which many competitors at this price omit. If you prioritize having physical surround speakers over a virtual soundstage, the LG S40TR has an edge.
Who is this for? It suits casual viewers who want a noticeable upgrade from TV speakers without dealing with complex wiring or spending a lot. It works well in apartments or smaller rooms where space is limited. It is also a decent choice for gamers who want basic surround for immersive play. Who should skip it? If you are an audiophile or demand precise, room-filling sound, you will likely be frustrated by its limitations. Those with large, open-concept living areas may find the sound lacks authority. Also, if your TV does not have an HDMI ARC port, you will lose some convenience features and audio quality.
In summary, the LG S40TR is a practical, no-fuss soundbar system that delivers on its promise of adding rear speakers and a subwoofer at a reasonable price. It is not a game-changer, but it does what it sets out to do for its intended audience. Just keep expectations in check regarding bass control and surround precision.