OXS S21 Review: Works with TV, PC, and Gaming Consoles
The OXS S21 2.1 Channels Sound Bar with Subwoofer delivers powerful, immersive audio for movies, music, and gaming through versatile connectivity and dedicated EQ modes.
By Elvis Dicki
Updated October 20, 2026
In the crowded market of home audio upgrades, the OXS S21 2.1 Channels Sound Bar with Subwoofer presents itself as a versatile contender designed to enhance a wide range of entertainment setups. This system is engineered for users seeking a significant audio improvement over built-in TV or monitor speakers without the complexity and expense of a full surround sound system. It targets movie enthusiasts, gamers, and music listeners who value deep bass, clear dialogue, and straightforward connectivity across multiple devices. The bottom line: the OXS S21 offers a compelling package of power, dedicated low-frequency performance, and universal compatibility at a competitive price point.
The appeal of the OXS S21 lies in its integrated 2.1-channel design, which pairs a slim soundbar with a separate, compact subwoofer. This configuration promises to deliver the cinematic rumble and impact that a standalone soundbar often lacks. With a stated total power output and a suite of connectivity options including HDMI ARC, Optical, and Bluetooth 5.3, it aims to be a central hub for audio from your television, computer, gaming console, and mobile devices. For those considering an audio upgrade that bridges multiple uses from home theater to desktop gaming, the OXS S21 warrants a closer look at its specifications and user-reported performance.
OXS S21 2.1 Soundbar with Subwoofer
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OXS S21 at a Glance
| Specification | Detail |
|---|---|
| Audio Configuration | 2.1 Channels (Soundbar + Subwoofer) |
| Total Power Output | Up to 240W (Manufacturer stated) |
| Subwoofer | 5.25-inch MDF driver, wired connection |
| Frequency Response (Subwoofer) | Down to 45Hz |
| Connectivity | HDMI ARC, Optical, USB-A, 3.5mm AUX, Bluetooth 5.3 |
| EQ Modes | Movie, Game, Music |
| Included Accessories | Remote control (batteries included), HDMI cable, Optical cable, AUX cable, wall-mount kit |
| Compatible Devices | TV, PC, PlayStation 4/5, Xbox, Mobile Devices (iOS/Android) |
| Soundbar Profile | Ultra-slim 42mm height |
| Warranty | 2-Year Limited |
Design and Build
The OXS S21 adopts a minimalist and practical design philosophy. The soundbar itself is notably slim, with a 42mm profile that allows it to sit discreetly in front of a television or be mounted on a wall without significant visual intrusion. Its enclosure combines ABS plastic and metal mesh, which is typical for the category, aiming to protect the drivers while allowing sound to pass through clearly. The separate subwoofer, featuring a 5.25-inch driver housed in an MDF (Medium-Density Fiberboard) enclosure, is designed to deliver the low-frequency effects. The use of MDF is a positive note, as this material is commonly used in higher-quality audio products for its acoustic properties, helping to reduce unwanted resonance for cleaner bass.
The overall aesthetic is understated and black, intended to blend into most home entertainment environments. The physical controls on the soundbar are supplemented by a dedicated remote control, which is included along with the necessary batteries. The package’s completeness is a highlight; it comes with all essential cables for multiple connection types (HDMI ARC, Optical, AUX) and a wall-mounting kit. This eliminates the need for immediate additional purchases and facilitates a straightforward setup process right out of the box, whether you choose a tabletop or wall-mounted placement for the soundbar.
Performance and Features
Audio Performance and Power
At the core of the OXS S21’s performance is its 2.1-channel configuration. The dual racetrack drivers in the soundbar handle the mid and high frequencies, with a claimed maximum sound output level. The dedicated 5.25-inch subwoofer is tasked with delivering the deep bass, with manufacturer specifications indicating it can reach down to 45Hz. This separation of channels is key for creating a more immersive and spatially distinct soundscape compared to a single-unit solution, particularly for action movies and games where bass impact is crucial. The system’s total power output is stated by the manufacturer, which should translate to a capable volume level suitable for small to medium-sized rooms.
Connectivity and Ports
Connectivity is a major strength of the OXS S21. It provides a comprehensive set of ports designed for universal compatibility. The HDMI ARC (Audio Return Channel) port allows for a single-cable connection to compatible televisions, simplifying control and audio routing. An Optical (Toslink) input offers a reliable digital connection for older TVs or other sources. For desktop or laptop computer use, it includes a USB-A port and a standard 3.5mm AUX input. Wireless streaming is handled by Bluetooth 5.3 technology, which should provide a stable connection for music playback from smartphones and tablets. This all-in-one approach means the soundbar can seamlessly switch between a TV for movies, a PC for gaming or work, and a phone for music, as detailed in our guide to the best connectivity options for modern audio setups.
Key Features and EQ Modes
Beyond basic playback, the OXS S21 includes three precision-tuned equalizer (EQ) modes accessible via the remote control. Movie Mode is optimized to enhance dialogue clarity, a common concern with standard TV speakers. Game Mode is designed to provide more pinpoint directional audio cues, which can be an advantage in competitive gaming scenarios. Music Mode aims to balance the mids and highs for clearer vocal and instrumental playback. These presets allow users to tailor the sound profile for different types of content without needing to manually adjust complex audio settings. The inclusion of a remote for source switching, mode selection, and bass adjustment adds significant convenience to daily use.
Setup, Support and Ownership
Setup is designed to be simple. With all necessary cables and a wall-mount kit included, users can connect the soundbar to their preferred source immediately. The subwoofer connects to the soundbar via a wired cable, which requires consideration for placement during setup but ensures a stable, lag-free bass signal. The manufacturer provides a 2-year limited warranty, which offers a standard level of protection for the product. Long-term support details, such as firmware update availability or direct customer service channels, are not specified in the provided data. The product is a closed system and does not offer expansion options for additional surround speakers, positioning it as a complete 2.1 solution rather than a modular one.
What Owners Say
Overall feedback from owners is positive, reflected in the product’s aggregated rating. The majority of reviews award the highest rating, with a significant portion also giving the second-highest rating. This suggests that most users are satisfied with their purchase. Common points of praise from this feedback likely align with the key selling points: the value for money, the noticeable improvement in bass from the dedicated subwoofer, and the ease of setup with the included accessories. A smaller percentage of reviews award mid-range ratings, and a minimal percentage give the lowest rating. While specific excerpts are not provided, this distribution indicates that while the OXS S21 meets or exceeds expectations for most, it may not satisfy all users in every scenario, potentially related to room size or specific audio preferences.
Pros and Cons
Pros
- Exceptional value with premium features like a dedicated subwoofer
- Versatile all-in-one connectivity for TV, PC, console, and mobile devices
- Genuine bass impact significantly enhances movies and games
- Simple, complete setup with all cables and mounting hardware included
- Useful preset EQ modes for different content types
- Convenient remote control for easy adjustments
Cons
- Power output may be limiting for very large rooms
- Limited to 2.1 channel sound without surround expansion options
- Subwoofer requires a wired connection to the soundbar
- Audio performance is dependent on source material and room acoustics
Who Should Buy It (and Who Should Skip It)
The OXS S21 is an ideal choice for users with a small to medium-sized living room, bedroom, or gaming setup who want a substantial audio upgrade over built-in speakers. It’s perfectly suited for movie watchers who crave deeper bass for action scenes, gamers who want more immersive directional audio, and music listeners who appreciate a fuller sound. Its multiple inputs make it excellent for a shared space where a TV, a game console, and a computer might all need audio support. It also fits well for those who prefer a clean, simple installation without the hassle of buying extra cables.
This soundbar may not be the best fit for users with very large, open-concept spaces where its power could be insufficient to fill the room. Audiophiles seeking the highest fidelity, nuanced soundstage, or support for high-resolution audio codecs might find it lacking. Those who desire a true wireless surround sound experience with rear speakers should look at systems designed for expansion, like some featured in our roundup of the best surround sound solutions. Similarly, if your primary need is crystal-clear dialogue for news and television, you might prioritize models specifically tuned for voice clarity, a topic we explore in our guide to the best soundbars for speech.
Final Verdict
The OXS S21 2.1 Channels Sound Bar with Subwoofer successfully delivers on its promise of powerful, immersive audio for a multi-use entertainment setup. Its combination of a slim soundbar and a dedicated, punchy subwoofer addresses a key weakness of many budget audio solutions. The extensive connectivity suite, covering both modern HDMI ARC and legacy Optical/AUX inputs, alongside Bluetooth 5.3, ensures compatibility with virtually any device in your home. The inclusion of three tailored EQ modes and a full complement of cables and mounting hardware demonstrates a user-centric design philosophy that maximizes value and minimizes setup friction.
While it is not without limitations—namely its fixed 2.1 configuration and wired subwoofer—these are reasonable trade-offs at its price segment. For the vast majority of users looking to dramatically improve their TV, gaming, or music listening experience without venturing into complex or prohibitively expensive audio systems, the OXS S21 represents a smart, capable choice. It stands as a compelling example of how feature-packed home audio technology has become accessible, a trend also seen in other smart home categories like the latest AI-integrated devices. If your priority is impactful bass, clear sound, and hassle-free connectivity across multiple platforms, the OXS S21 is easy to recommend.
FAQs
Does the OXS S21 support 4K or HDR passthrough via HDMI?
The provided specifications confirm the OXS S21 has an HDMI ARC (Audio Return Channel) port. This port is primarily for transmitting audio from a compatible TV to the soundbar. The product data does not specify if this HDMI port supports video passthrough features like 4K or HDR. For optimal video quality, it is generally recommended to connect video sources directly to your television and use the HDMI ARC or another audio output to send sound to the soundbar.
Can I connect the OXS S21 subwoofer wirelessly?
No. According to the specifications, the subwoofer uses a wired connectivity technology. It connects to the main soundbar unit via a physical cable. This means the placement of the subwoofer is somewhat constrained by the length of this cable, unlike systems with a wireless subwoofer that can be placed more freely in a room.
What is the difference between the Movie, Game, and Music EQ modes?
Based on the manufacturer’s description, each mode applies a different audio tuning profile. Movie Mode is designed to enhance dialogue clarity, making it easier to hear speech in films and TV shows. Game Mode focuses on providing more distinct directional audio cues, which can help locate in-game sounds. Music Mode adjusts the balance of mid and high frequencies to aim for clearer and more detailed music playback. You can switch between these modes using the included remote control.
Does the OXS S21 work with voice assistants like Alexa or Google Assistant?
The product specifications and feature list provided do not mention any built-in support for voice assistants like Amazon Alexa or Google Assistant. The primary control methods listed are the remote control and physical buttons on the soundbar itself. For voice control, you would need to use the assistant built into your connected source device (like a smart TV, Fire Stick, or smartphone) and control the soundbar’s volume through that device’s interface.
About the author
Elvis Dicki writes reviews and buying guides for CyberSecLabs.