LG S20A.AUSALLK Review: Can WOW Orchestra Synch LG TVs for Perfect Harmony?
The LG S20A.AUSALLK soundbar delivers a significant audio upgrade for compatible LG TVs, leveraging seamless integration and AI optimization in a compact, bass-forward package.
By Elvis Dicki
Updated October 20, 2026
The LG S20A.AUSALLK is a 2.0 channel soundbar designed to enhance your television’s audio, particularly if you own a compatible LG TV. This compact all-in-one unit focuses on delivering richer sound and deeper bass than standard TV speakers, without the need for a separate subwoofer. It aims for users who want an uncomplicated audio boost with deep integration into the LG ecosystem, offering features like one-remote control and synchronized audio between the TV and soundbar. For LG TV owners seeking a streamlined, feature-rich sound upgrade that prioritizes seamless setup and cohesive operation, the S20A presents a compelling option.
This soundbar’s core proposition is its ability to fit discreetly into your entertainment setup while delivering a substantial auditory improvement. It leverages LG’s proprietary technologies like WOW Orchestra and AI Sound Pro to tailor the listening experience automatically. The bottom line is this: the LG S20A.AUSALLK is engineered as a plug-and-play audio enhancement for the modern LG television, making it a strong candidate for those who value simplicity and brand ecosystem synergy over raw, expansive surround sound power.
LG S20A 2.0 Channel Soundbar with Dolby Audio
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LG S20A.AUSALLK at a Glance
| Specification | Detail |
|---|---|
| Audio Channels | 2.0 |
| Connectivity | HDMI ARC, Bluetooth, Wi-Fi |
| Key Audio Features | Dolby Audio, DTS Digital Surround, Passive Radiator for Bass |
| Control Methods | TV Remote (WOW Interface), LG ThinQ App |
| Special Features | WOW Orchestra, AI Sound Pro, WOW Interface |
| Dimensions (W x H x D) | 25.6″ x 2.5″ x 3.9″ |
| Enclosure Material | Metal with Metal Grill |
| Compatibility Note | Optimized for select LG TVs |
| Additional Ports | USB Port |
Design and Build
The LG S20A.AUSALLK sports a clean, modern aesthetic with what LG calls its “crest” design, giving it a sleek and low-profile look suitable for placement in front of most televisions. With dimensions of 25.6 inches wide, 2.5 inches high, and 3.9 inches deep, it is compact enough to fit into a variety of spaces without dominating your TV console. The build utilizes a metal enclosure, and the front is covered by a metal grill. LG states this grill serves a dual purpose: it contributes to the soundbar’s stylish appearance and helps protect the internal speakers from dust and debris, promoting long-term performance.
The unit is designed for tabletop mounting, featuring rubber feet to prevent slipping and screw holes on the bottom for optional mounting to a compatible stand. The overall design philosophy is one of minimalist integration, aiming to blend into your setup visually while making a clear impact audibly. The black finish is standard, and the construction quality from the specifications suggests a focus on durability through its metal components.
Performance and Features
Audio Performance and Technologies
As a 2.0 channel soundbar, the S20A.AUSALLK delivers stereo sound left and right. Its standout feature for a model without a dedicated subwoofer is the inclusion of a passive radiator. This component is engineered to enhance bass response, allowing the compact soundbar to produce richer, deeper low-end frequencies than its size might suggest. For audio decoding and immersion, it supports Dolby Audio and DTS Digital Surround, technologies aimed at providing clearer dialogue, detailed effects, and a more cinematic feel from movie and TV show content.
The AI Sound Pro feature is a core part of its performance profile. This function uses artificial intelligence to analyze the audio signal in real-time and automatically adjust the equalizer settings. The goal is to optimize sound based on content type, such as enhancing vocal clarity for television shows, boosting bass for music, or increasing dynamic range for sports and action scenes. This hands-free optimization is a key selling point for users who prefer not to manually tweak settings.
Connectivity and Ports
Primary connection to a television is intended via a single HDMI cable using the HDMI ARC (Audio Return Channel) port. This setup allows for audio to be sent from the TV to the soundbar and enables control functions like power synchronization and volume adjustment through the TV remote. The manufacturer emphasizes this “one cord” approach to reduce cable clutter. It is crucial to note that this HDMI ARC functionality requires a compatible TV port; the product data indicates it may not work with standard HDMI-IN ports lacking ARC support.
Beyond HDMI ARC, the soundbar offers Bluetooth and Wi-Fi wireless connectivity. Bluetooth allows for direct streaming from smartphones or tablets, while Wi-Fi connectivity likely supports integration with the LG ThinQ app and other smart features. A USB port is also listed among its additional features, though its specific use (e.g., for firmware updates or media playback) is not detailed in the provided specifications. Notably, the specifications do not list an optical audio input, which is a common alternative connection method for older televisions.
LG Ecosystem and Control Features
The S20A.AUSALLK’s performance is deeply intertwined with the LG ecosystem, particularly through two features: WOW Orchestra and WOW Interface. WOW Orchestra is designed to synchronize the audio output from compatible LG TVs with the soundbar’s own speakers. The intent is to create a unified, harmonious soundstage using all available speakers as a cohesive system, potentially offering a more immersive experience than the soundbar alone.
WOW Interface tackles control simplification. When connected to a compatible LG TV, it allows users to operate both the television and the soundbar with a single remote—the TV remote. Functions like power, volume adjustment, audio mode selection, and connection status can be managed directly from the television’s on-screen menus. For more granular control, the LG ThinQ App provides a mobile interface. Through the app, users can customize a 3-band equalizer, adjusting bass, treble, and mid-range (for loudness) frequencies to their personal preference.
Setup, Support and Ownership
Setup for users with compatible LG TVs is described as straightforward, primarily involving connecting the included HDMI cable between the TV’s HDMI ARC port and the soundbar. Owner reviews frequently mention that the system guides them through a quick setup process via the TV screen, after which the soundbar powers on and off automatically with the television. For non-LG TVs or TVs without HDMI ARC, setup options are more limited, relying on Bluetooth connectivity.
The product is a standalone unit; the manufacturer data does not mention optional accessory subwoofers or rear satellite speakers for creating a wider surround sound system. Support is provided through a standard limited warranty covering parts and labor for one year. As a smart device with app connectivity, it may receive firmware updates via its network connection, though a specific update policy or schedule is not provided in the data. Ownership is geared towards a simple, integrated experience with minimal ongoing maintenance, aided by features like the dust-resistant metal grill.
What Owners Say
Owner feedback highlights a generally positive experience, particularly regarding the improvement over built-in TV speakers and the simplicity of setup with matching LG televisions. Many reviews praise the soundbar for delivering surprisingly deep and rich bass from its compact form factor, noting it exceeds expectations for a system without a separate subwoofer. The clarity of dialogue and highs is also frequently commended. The integration features, like automatic power syncing and single-remote volume control via the TV, are consistently cited as major conveniences that enhance daily use.
The overall rating distribution shows a high percentage of five-star reviews, with a smaller but notable number of one-star reviews. The primary source of dissatisfaction stems from compatibility issues. Several owners report that the soundbar did not work with their older LG or non-LG televisions, specifically due to the lack of an HDMI ARC port on their TV and the soundbar’s absence of an optical audio input. These users found the product description lacking clear warnings about this compatibility limitation. This feedback underscores that the S20A.AUSALLK’s optimal performance is tightly coupled with having a modern, compatible LG TV.
Pros and Cons
Pros
- Significant audio upgrade over standard TV speakers
- Powerful bass output for a compact, subwoofer-less design
- Seamless integration and automatic setup with compatible LG TVs
- Convenient single-remote (TV) control for power and volume
- AI Sound Pro automatically optimizes audio for different content
- WOW Orchestra synchronizes TV and soundbar speakers
- LG ThinQ App allows for detailed equalizer customization
Cons
- No dedicated subwoofer for the deepest bass extension
- Lacks HDMI eARC support for highest-quality audio formats
- Limited connectivity options, missing an optical audio input
- Compatibility heavily dependent on having a modern LG TV with HDMI ARC
- 2.0 channel sound is less immersive than multi-channel or surround setups
- Control features like WOW Interface are exclusive to LG TVs
Who Should Buy It (and Who Should Skip It)
The LG S20A.AUSALLK is an ideal purchase for owners of recent LG televisions that support HDMI ARC. If you are looking for a simple, substantial improvement to your TV’s audio that requires minimal extra equipment and setup fuss, this soundbar delivers. Its deep integration with the LG ecosystem, offering features like one-remote control and synchronized audio, makes it a natural and convenient upgrade. Users who value AI-driven sound optimization and a compact form factor with robust bass will find it particularly appealing. It fits well in spaces where a separate subwoofer is impractical.
You should skip this soundbar if you do not own a compatible LG TV, especially an older model without an HDMI ARC port. The lack of an optical input severely limits your connection options. Audiophiles or home theater enthusiasts seeking a true multi-channel surround sound experience with a dedicated subwoofer should look at more advanced soundbar systems. Similarly, if your primary goal is future-proofing for high-resolution audio formats like Dolby Atmos, which typically require HDMI eARC, this model is not equipped for that task. For more options, you can explore other soundbars or guides on finding the best TV soundbars for voice clarity.
Final Verdict
The LG S20A.AUSALLK successfully achieves its goal of providing a powerful, integrated audio upgrade for the modern LG television. Its strengths lie in its thoughtful design, which pairs a compact metal chassis with a passive radiator for impressive bass, and its deep software integration with the LG ecosystem. Features like AI Sound Pro, WOW Orchestra, and single-remote control via WOW Interface create a user experience that is both high-performing and exceptionally convenient for the target audience. For LG TV owners, it removes the typical friction of adding external audio, making it feel like a natural extension of the television itself.
However, this focused design is also its main limitation. The soundbar’s value proposition diminishes sharply outside the LG TV environment, especially for owners of older televisions lacking specific ports. Its 2.0 channel configuration and lack of HDMI eARC also place a ceiling on its immersive potential compared to more expansive systems. Ultimately, the LG S20A.AUSALLK is a specialist, not a generalist. It is a highly recommended choice for its intended user—an LG TV owner seeking a simple, bass-enhanced audio boost with seamless control—but a poor fit for those outside that specific scenario. For broader tech solutions, consider reading about AI smart home devices or other tech gear.
FAQs
Does the LG S20A.AUSALLK come with a subwoofer?
No, the LG S20A.AUSALLK is a 2.0 channel soundbar and does not include a separate subwoofer. It uses a built-in passive radiator designed to enhance bass response within the compact soundbar unit itself. This provides richer low-end frequencies than standard TV speakers but does not deliver the ultra-deep bass of a dedicated subwoofer.
Can I use this soundbar with a non-LG television?
Yes, but with significant limitations. You can connect it via Bluetooth to stream audio. However, the key integration features like WOW Orchestra, WOW Interface (single remote control), and the simplified HDMI ARC setup are designed for and may only function with compatible LG TVs. Crucially, if your non-LG TV lacks an HDMI ARC port, you cannot use the primary HDMI connection method, and the soundbar does not have an optical audio input as an alternative.
What is AI Sound Pro and how does it work?
AI Sound Pro is a feature that uses artificial intelligence to automatically adjust the soundbar’s equalizer in real-time based on the content you are watching. It analyzes the audio signal to detect whether you are listening to dialogue-heavy content like a TV show, music, or dynamic scenes like sports and action movies. It then optimizes the sound profile to enhance clarity for voices, boost bass for music, or increase the dynamic range for excitement, respectively.
What cables are included with the soundbar?
According to owner reviews, the LG S20A.AUSALLK comes with a supplied HDMI cable for connecting to your television. It also includes a power supply cord and a remote control. The product specifications list that the remote requires two AAA batteries, which may or may not be included. For mounting, it has rubber feet for tabletop use and screw holes on the bottom for attachment to a stand.
About the author
Elvis Dicki writes reviews and buying guides for CyberSecLabs.