LG S70TY.CUSALLD Review: QNED-Matching 3.1.1-Channel Soundbar with WOW Orchestra
The LG S70TY.CUSALLD is a soundbar designed for seamless integration with LG QNED TVs, delivering Dolby Atmos audio and simplified control through a single remote.
By Elvis Dicki
Updated October 20, 2026
For owners of LG QNED televisions seeking to elevate their home audio without the clutter of a complex receiver system, the LG S70TY.CUSALLD presents a compelling, integrated solution. This 3.1.1-channel soundbar is engineered specifically to match the aesthetic and functional profile of LG’s QNED series, offering a path to immersive spatial sound. It stands out as a system designed for harmony, aiming to blend the audio from your TV and soundbar into a unified, richer experience controlled by a single remote.
This review analyzes the LG S70TY.CUSALLD’s specifications, design philosophy, and key features like its up-firing center channel and WOW Orchestra technology to determine its value proposition. The bottom line is that this soundbar is best suited for LG QNED TV owners who prioritize a clean, integrated setup with enhanced dialogue clarity and the convenience of unified control over raw, expandable power.
LG S70TY 3.1.1-Channel Dolby Atmos Soundbar
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated.
LG S70TY.CUSALLD at a Glance
| Specification | Detail |
|---|---|
| Model | LG S70TY.CUSALLD |
| Audio Channels | 3.1.1 |
| Key Audio Technologies | Dolby Atmos, DTS, Immersive 3D Spatial Sound |
| Special Features | WOW Orchestra, WOW Interface, Up-firing Center Channel |
| Connectivity | HDMI, Bluetooth |
| Subwoofer | Wireless (included) |
| Rear Speaker Support | Ready (2.0 Ch, sold separately) |
| TV Compatibility | Optimized for LG QNED Series; works with any LG TV |
| Control | LG TV Remote (via WOW Interface) |
| Dimensions (W x D x H) | 37.4″ x 4.5″ x 2.5″ |
Design and Build
The LG S70TY.CUSALLD is built with a focus on visual integration. Its compact, slim profile is specifically dimensioned to nest perfectly beneath LG QNED TVs on a stand, creating a cohesive look. The design features what LG calls a “crest” shape and is finished with a metal grill. This grill serves a dual purpose: contributing to a sleek, stylish appearance and acting as a barrier to keep dust and debris away from the internal speakers. The soundbar can also be wall-mounted, and for the cleanest possible installation with a QNED TV, it is compatible with the optional LG QNED Synergy Bracket, which attaches the soundbar directly to the TV itself. The enclosure material is listed as metal, suggesting a robust build quality.
Performance and Features
Audio Performance and Immersion
At its core, the S70TY is a 3.1.1-channel system. This configuration includes three front channels (left, center, right), a wireless subwoofer for bass, and a unique up-firing center channel. This dedicated upward-firing driver is highlighted as an industry-exclusive feature focused on enhancing dialogue clarity, ensuring voices remain distinct amidst sound effects and music. The system supports Dolby Atmos and DTS audio codecs, including Dolby TrueHD and Dolby Digital Plus, which are essential for high-quality spatial audio from streaming services and physical media. LG’s Immersive 3D Spatial Sound technology is designed to create a virtual dome of audio, aiming to deliver a more cinematic experience. The soundbar also features an upmixing function to convert 2-channel audio into a multi-channel soundstage.
Connectivity and Gaming
Connectivity is handled primarily via HDMI, which carries both audio and video signals. A key specification for gamers is the support for a passthrough refresh rate of up to 120Hz, which is intended to provide a smooth, low-lag gaming experience by allowing high-frame-rate video signals to pass through the soundbar to the TV without interference. Wireless connectivity is provided by Bluetooth for streaming audio from smartphones and other devices. The subwoofer connects wirelessly to the main soundbar unit, simplifying placement and reducing cable clutter. The system is also rear-speaker ready, supporting the addition of optional 2.0-channel wireless rear speakers to expand the system to a more complete surround sound setup.
Key Integration Features: WOW Orchestra and WOW Interface
The most distinctive software features are WOW Orchestra and WOW Interface, though manufacturer notes specify they are only available on select LG TV models. WOW Orchestra is designed to use the speakers of both the compatible LG TV and the LG soundbar simultaneously, combining their output to create what LG describes as the “ultimate listening experience” with more detailed sound. This is managed through a single remote via WOW Interface. This feature allows users to control the soundbar’s volume, audio settings, connection status, and sound mode selections directly from their LG TV remote, eliminating the need for a separate soundbar remote and streamlining the user experience.
Setup, Support and Ownership
Setup appears straightforward, with the main connection being a single HDMI cable to the TV. The included wireless subwoofer should pair automatically, reducing initial configuration steps. The soundbar comes with a remote control, wall mount bracket, HDMI cable, and warranty card. Expansion is a clear path with this model; users can purchase optional wireless rear speakers to create a more enveloping surround sound experience. For the ideal aesthetic setup with a QNED TV, the LG QNED Synergy Bracket is a separately sold accessory. The manufacturer provides a one-year limited warranty covering parts and labor. Specific details regarding firmware update procedures or long-term software support are not listed in the provided data.
What Owners Say
Based on the aggregated rating data, user reception of the LG S70TY.CUSALLD is positive. The soundbar holds a favorable rating, indicating general satisfaction among purchasers. While specific review excerpts are not provided in the data, the consistent rating suggests that owners find it delivers on its core promises of improved audio quality and integration for their home theater setups, particularly with matching LG TVs.
Pros and Cons
Pros
- Seamless physical and control integration with LG QNED TVs
- Dolby Atmos and DTS support for immersive spatial audio
- Up-firing center channel enhances dialogue clarity
- Wireless subwoofer and rear-speaker readiness for easy expansion
- WOW Interface allows control via a single TV remote
- Compact, stylish design with dust-resistant metal grill
Cons
- Full WOW Orchestra and Interface features limited to select LG TVs
- Rear surround speakers and QNED Synergy Bracket sold separately
- Lacks advanced features like AI room calibration found in higher-end models
- Specific compatibility details for non-LG TVs are not extensively listed
Who Should Buy It (and Who Should Skip It)
The LG S70TY.CUSALLD is an ideal choice for owners of LG QNED series televisions who want a significant audio upgrade that looks like it was made for their TV. It’s perfect for those who value a clean, minimalist setup with minimal wires and the convenience of using one remote for everything. Users who prioritize clear dialogue in movies and TV shows will appreciate the dedicated up-firing center channel. It’s also a sensible starting point for buyers who may want to build a system over time, thanks to its wireless rear speaker readiness.
This soundbar is less suitable for owners of non-LG televisions, as many of its hallmark integration features may not function fully. Audiophiles seeking the absolute highest fidelity or advanced room correction technology should look to higher-tier models. Those who want a complete, out-of-the-box surround sound system should note that the rear speakers are an additional purchase. For more options on complete surround sound solutions, explore our guide to the best surround sound soundbars.
Final Verdict
The LG S70TY.CUSALLD succeeds as a purpose-built audio companion for the LG QNED ecosystem. Its strength lies not in being the most powerful or feature-laden soundbar on the market, but in how elegantly it solves specific problems for its target audience. The design ensures a perfect fit, the WOW Interface eliminates remote clutter, and the 3.1.1-channel audio with Dolby Atmos provides a substantial leap over built-in TV speakers, particularly in delivering clear dialogue and a wider soundstage. The option to add wireless rear speakers in the future offers a clear upgrade path.
However, its value is intrinsically tied to your existing hardware. For a QNED TV owner, it is a highly logical and satisfying upgrade that enhances both the aesthetics and performance of their entertainment center. For others, especially those with TVs from different brands, many of its standout features may be inaccessible, making it a less compelling choice compared to more universally focused soundbars. If you’re considering soundbars for other specific needs, such as exceptional voice clarity, our resource on the best TV soundbars for voice clarity is worth reviewing.
FAQs
Does the LG S70TY work with non-LG TVs?
Yes, the LG S70TY.CUSALLD can connect to any television with an HDMI ARC/eARC port and will function as a standard soundbar, providing audio from its own speakers and subwoofer. However, its signature WOW Orchestra and WOW Interface features, which enable synchronized audio with the TV’s own speakers and control via the TV remote, are designed specifically for select LG TV models and may not be available with other brands.
What is included in the box with the soundbar?
According to the manufacturer’s data, the package includes the main soundbar unit, a wireless subwoofer, a remote control, an HDMI cable, a wall mount bracket, and a warranty card. The optional rear surround speakers and the LG QNED Synergy Bracket for attached mounting are sold separately.
What does “3.1.1 channels” mean?
A 3.1.1-channel configuration refers to three front channels (left, center, right), one subwoofer channel (.1) for low-frequency effects, and one height channel (the second .1). In the S70TY, this height channel is realized through the up-firing center speaker, which is designed to reflect sound off the ceiling to add a sense of vertical immersion, particularly for Dolby Atmos content, and to enhance dialogue projection.
Is this soundbar good for gaming?
The specifications indicate features beneficial for gaming, including HDMI passthrough with a refresh rate of up to 120Hz. This is intended to minimize audio-visual lag, providing a more responsive gaming experience. The wide soundstage and immersive audio formats can also enhance the atmosphere of games. For further insights into home theater tech, you can browse our broader Tech Gear coverage.
About the author
Elvis Dicki writes reviews and buying guides for CyberSecLabs.