REVIEW: LG S70TY Soundbar delivers cinematic sound with powerful bass without a high price tag.

With power of up to 400W RMS and support for Dolby Atmos, LG S70TY soundbar It fits into the mid-range market and could be a good option for those who have a smart TV from [Brand Name]. LGSince it's possible to use the soundbar and TV speakers simultaneously for high sound power, is the R$2 investment worthwhile? See our full review:

Design

Completely in black, the LG S70TY soundbar It focuses on practicality: in about fifteen minutes it's already assembled and connected to your smart TV. The set includes a dedicated wireless subwoofer For low frequencies, designed to be positioned on the floor, preferably near the TV, ensuring greater physical impact and sound immersion.

The main bar measures 950 × 63 × 115 mm It was cleverly designed to integrate into the environment. It features structural cutouts in the base that accommodate the feet of compatible smart TVs from the same brand, allowing the unit to fit perfectly into the furniture.

But if you prefer, LG also sends wall mounts that can be attached below the smart TV you plan to connect the model to.

The subwoofer, in turn, has dimensions of 200 × 377 × 285 mm. Its cabinet features a robust construction with a simple and functional design, including a fabric front grille that protects the internal components without causing any obstruction or acoustic distortion. Also noteworthy is the LED indicator: green for connected, red for on but disconnected, and white for off, present on both the soundbar and the subwoofer.

The major technical highlight of this model's engineering lies in its configuration of 3.1.1 channelsThis means that the bar consists of three conventional front channels (left, right and a center channel dedicated to making dialogues clearer), an external subwoofer (.1) for bass, and a dedicated central channel for top firing (up-firing, indicated by the last .1).

This driver, positioned at the top of the bar, is responsible for projecting the sound towards the ceiling, generating the height effect necessary to bring spatial audio content to life, such as... Dolby AtmosThe integration of the ecosystem is immediate: the subwoofer It connects automatically via Bluetooth as soon as the soundbar is turned on, eliminating the need for manual configuration.

In the packaging, LG includes a remote control that inherits the visual identity of the famous [brand/brand]. Magic Remote Similar to the brand's TVs, but with a simplified and straightforward interface. In addition to volume and power controls, there are dedicated buttons for muting the audio, navigating between preset sound modes, and switching to Bluetooth connectivity for quick pairing with mobile devices. The accessory is powered by two AAA batteries.

Audio quality

The sound power of 400W RMS from the LG S70TY It immediately transforms the dynamics of the environment. The difference compared to the native speakers of a smart TV is striking from the first use, making returning to the standard TV audio practically unthinkable. When playing tracks with more noticeable guitar and bass, the system demonstrates excellent balance: the initial fingerpicking of the guitar exhibits great resonance in the low frequencies and rich textures in the high frequencies.

When the instrumentation takes shape, bass lines, drums, guitars, and vocals receive equal attention in the mix. The subwoofer also does its job powerfully, providing the complement that the ears need to feel at the center of the music, bringing immersion to the entire environment.

It's also worth mentioning the automatic sound modes. The AI SoundPro It adapts the sound settings to the type of media being streamed, with the smart TV sending the data to the soundbar. It will only work well if you already have an LG TV, as the soundbar cannot identify the type of sound being emitted, although you can navigate using the remote control.

Although the system cannot pinpoint the exact location of each individual effect in space, the three main horizontal channels expand the sound far beyond conventional stereo, delivering an immersive sound that is quite impressive for the product's price point.

The model has support for the standard. DTS digital surround (including the virtualized DTS:X decoder) and the technology of VRR (Variable refresh rate) via HDMI. Support for the DTS ecosystem ensures that soundtracks from major physical or streaming productions maintain the signature multichannel cinema audio quality with fidelity.

Compatibility with VRR directly eliminates synchronization delays and input lag during matches in games of PS5 ou Xbox Series S / XThis means that the game's variable frame rate fluctuates on the TV without the soundbar's audio processing falling behind, keeping the sound effects perfectly matched to each frame of image rendered on the screen.

But it's worth highlighting that the biggest selling point of the LG S70TY for movie buffs is its native support for... Dolby AtmosThis object-based audio technology abandons the old concept of "fixed sound channels" to treat each effect, such as a helicopter flying overhead or a raindrop falling, as an independent element that moves freely through three-dimensional space.

In the S70TY, this experience is enhanced by the superior trigger driver (up-firing), which reflects sound waves off the ceiling to simulate speakers installed in your living room ceiling.

The feature can be widely used on major current streaming platforms, such as Netflix, Max, Apple TV+ and Disney+, which already offer a large portion of their catalogs of big-budget films and series (such as science fiction, action, and fantasy productions) with soundtracks mastered in Dolby AtmosSimply ensure that your subscription plan supports the format and that the soundbar is connected to the TV via cable. HDMI and ARC.

Connectivity

A LG S70TY It belongs to a mid-range segment focused on cost-effectiveness and, therefore, incorporates some design choices to keep the price down. The main one is the absence of Wi-Fi connectivity. As the soundbar only has Wi-Fi, it doesn't have a built-in Wi-Fi connection. Bluetooth 5.3 In terms of wireless connectivity, it doesn't come with built-in virtual assistants or native internet streaming capabilities (like Chromecast or AirPlay).

Although this lack of network connectivity limits the artificial intelligence capabilities directly on the soundbar, the decision is consistent with the model's purpose. Those who want to use voice commands can still use the smart TV's own assistant; in this scenario, the soundbar will function purely as the main audio output system. It's worth noting that, even without Wi-Fi, it can still be integrated with the LG ThinQ app on your smartphone via Bluetooth for equalization adjustments and usage control.

If you have an LG smart TV, you can also control this soundbar directly on the big screen. The benefits are even greater if you are fully integrated into the South Korean brand's ecosystem, as this allows you to take advantage of the feature. WOW Orchestra, which seamlessly combines the TV's native speakers with the soundbar's channels to deliver an even more immersive and integrated audio experience.

In terms of physical design, the model offers versatility with one optical input, one HDMI input The LG S70TY soundbar features a traditional HDMI input and an HDMI port with eARC/ARC network support for use with the most advanced sound standards. LG includes an HDMI cable in the box, and it is highly recommended that you use it. To get the most out of your movies and games, the HDMI eARC connection is essential. See all the available inputs on the LG S70TY soundbar:

• 1x HDMI 2.0 input
• 1x HDMI eARC/ARC input
• 1x Digital Optical Input (Optical In)
• 1x USB-A port

Applications (Android and iPhone (iOS))

The control and fine-tuning of LG S70TY These can be done directly from your smartphone via the app. LG ThinQ, available to Android e iOSTo ensure a stable experience with the app, the ideal scenario is for the soundbar to be connected to your smart TV via HDMI cable.

That's because, if you decide to pair the soundbar with the TV entirely by BluetoothThe device's antenna will prioritize the audio stream from the mobile phone, which may cause conflicts or disconnections when trying to use the app on the mobile phone simultaneously.

The interface of the ThinQ It is clean, intuitive, and functions as a complete virtual remote control, allowing you to turn the equipment on and off and adjust its volume. Through it, the user can also manage firmware updates and navigate equalization profiles.

One of the app's greatest strengths is its management of... Night modeInstead of simply lowering the overall volume, this feature, according to LG, "applies dynamic range compression that drastically reduces subwoofer bass peaks (preventing late-night noises) while preserving the clarity of voice frequencies," ensuring that dialogue remains perfectly audible.

In short, if your primary display ecosystem already consists of an LG smart TV, the convenience is doubled, as the soundbar will be integrated and managed within the same app you already use to control your TV.

Because it is a model with only Bluetooth Without open network connections, management is restricted to the brand's proprietary ecosystem, and is not compatible with hubs or other applications such as Samsung's SmartThings (since it does not support the Matter protocol).

Price and availability

Located in the mid-range category, despite having high sound power and premium sound standards such as Dolby Atmos, the LG S70TY soundbar It can be found for under R$2 with a quick internet search. See the options at major stores in Brazil:

• Free market: R$1.842 on Pix
• Luiza Magazine: R$1.899 on Pix
• Amazon: 2.361 BRL

Conclusion: is it worth buying?

A LG S70TY It positions itself as an excellent cost-effective option in the mid-range market, delivering a robust technological package at a competitive price. The great advantage of this model is that it brings technologies that truly transform the practical experience of home entertainment, especially its support for... Dolby Atmos and DTS: X, powered by its superior physical firing channel. Furthermore, the soundbar masterfully caters to the gaming audience by ensuring signal transmission with high refresh rates, VRR, and ALLM for next-generation consoles.

The result is a truly immersive sound experience, crowned by a wireless subwoofer that delivers deep, full-bodied bass without distortion, even during the most demanding acoustic moments.

Although the lack of native Wi-Fi connectivity might seem like a limitation on paper, in daily use it ends up not being missed. LG has cleverly overcome this design choice by ensuring excellent wireless communication with the app. LG ThinQ via Bluetooth, allowing the user to manage profiles, updates, and the useful Night Mode without any complications directly from their cell phone.

All the convenience and essential audio and physical connectivity features are retained, ensuring that the device delivers exactly what it promises in its price range: cinema-quality sound without breaking the bank.

However, your satisfaction level with the product may vary depending on your current screen. The soundbar will perform even better if you are already part of the South Korean manufacturer's ecosystem and own an LG smart TV, allowing you to activate exclusive features such as... WOW Orchestra to match the TV speakers with those of the device.

If you use the device with a TV from another brand, the practical use and the extreme audio quality in movies and games will not be altered in any way, but it is worth noting that software functions and design integration exclusive to the brand will no longer be available.

Technical specifications

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reviewed by Tiago Rodrigues in 29 / 06 / 2026