Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer vs TCL S55H 2.1 Sound Bar with Wireless Subwoofer for
Updated July 2026 — Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer wins on width and weight, TCL S55H 2.1 Sound Bar with Wireless Subwoofer for wins on subwoofer height and height.
The TCL S55H offers advanced audio features at a lower price, making it the better choice for budget-conscious consumers. However, the Polk Audio Signa S2 excels in dialogue clarity.
Why Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer is better
Dialogue Clarity
Polk's VoiceAdjust technology enhances dialogue.
Build Quality
Polk has a solid build and design.
Setup Ease
Polk offers a quick setup with included cables.
Why TCL S55H 2.1 Sound Bar with Wireless Subwoofer for is better
Price
TCL is significantly cheaper at $129.99.
Audio Features
TCL includes Dolby Atmos and DTS Virtual:X.
Power Output
TCL has a total output of 220W.
Overall score
Specifications
| Spec | Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer | TCL S55H 2.1 Sound Bar with Wireless Subwoofer for |
|---|---|---|
| Audio Tech | VoiceAdjust | Dolby Atmos |
| Power Output | 100W | 220W |
| Bluetooth | Yes | Yes |
| Setup Type | Plug & Play | Plug & Play |
| Connectivity | HDMI, AUX | HDMI eARC, AUX |
Dimension comparison
Design and Build Quality
The design and build quality of the Polk Audio Signa S2 and the TCL S55H are both appealing, but they cater to slightly different preferences. The Polk Audio Signa S2 features an ultra-slim profile at just over 2 inches tall, allowing it to easily fit in front of most TVs without blocking the screen or remote sensors. Its design is simple yet effective, making it suitable for a wide range of home setups. Conversely, the TCL S55H boasts a sleek, low-profile design that measures 31.89 inches wide and 2.36 inches high. This model is designed for a premium feel, standing out more as a stylish addition to your entertainment space while maintaining a clean look with minimal visible wires.
Audio Performance
The Polk Audio Signa S2 is engineered with five powerful full-range drivers and features Polk's exclusive VoiceAdjust technology, which enhances dialogue clarity and reduces voice delays. This sound bar is particularly noted for delivering rich audio with deep bass, making it ideal for an immersive home theater experience. On the other hand, the TCL S55H integrates Dolby Atmos and DTS Virtual:X technologies, providing cinematic audio that envelops the listener. With a total power output of 220W, this sound bar is designed to fill larger spaces with sound while maintaining crisp dialogue and detailed mid-range frequencies. Thus, while both sound bars excel in audio performance, the TCL S55H offers a more advanced sound processing experience.
Connectivity Options
In terms of connectivity, both sound bars offer versatile options, but the TCL S55H provides slightly more advanced features. The Polk Audio Signa S2 includes HDMI, optical input, and AUX, along with Bluetooth for wireless streaming from devices. This makes it a solid choice for users looking for straightforward connectivity. Conversely, the TCL S55H supports HDMI eARC/ARC, optical, Bluetooth 5.2, and AUX, allowing for a more seamless connection, especially with newer TVs. Additionally, the TCL model includes an app for easy adjustments and room calibration, enhancing the user experience.
Setup and Installation
Setting up the Polk Audio Signa S2 is designed to be a quick and hassle-free process, as it comes with all necessary cables, including an HDMI cable. It allows users to connect their TVs and start enjoying enhanced audio in minutes. The TCL S55H also emphasizes ease of installation, featuring a simple plug-and-play setup with a full-function remote and including an HDMI cable and wall-mount kit. However, the added complexity of the app for room calibration may require a slightly longer setup time, especially for those unfamiliar with smart features.
Price Comparison
When it comes to pricing, the Polk Audio Signa S2 is listed at $249.00, whereas the TCL S55H is significantly more affordable at $129.99. This means the TCL model is about 48% cheaper than the Polk Audio option. The significant price difference may be attractive for budget-conscious consumers who still seek quality sound performance. This disparity also reflects the varying features and technologies each sound bar offers, with the TCL providing advanced audio processing at a lower price point.
Brand Reputation and Sales Rank
Both Polk Audio and TCL have established themselves as reputable brands in the audio market. The Polk Audio Signa S2 has a sales rank of 3,206, indicating a solid position among consumers; however, the TCL S55H outperforms it with a sales rank of 1,884. This suggests that the TCL sound bar is currently more popular among buyers, potentially due to its competitive pricing and advanced features, making it a favored choice in the sound bar category.
User Experience and Features
The user experience can vary between the two models, particularly in terms of unique features. The Polk Audio Signa S2’s VoiceAdjust technology is aimed at providing clear dialogue, which is a standout feature for movie enthusiasts. Meanwhile, the TCL S55H includes AI Sonic Auto Room Calibration, which automatically adjusts audio settings based on the room layout and listening position. This feature can significantly enhance the listening experience in varying environments, making it a great choice for users who prioritize adaptability in their sound system.
Which should you buy?
Ultimately, the choice between the Polk Audio Signa S2 and the TCL S55H depends on your specific needs and priorities. If you're seeking advanced audio features like Dolby Atmos and DTS Virtual:X, alongside a lower price point, the TCL S55H is the clear winner. However, if you prioritize dialogue clarity and a solid build quality, the Polk Audio Signa S2 may be more appealing despite its higher price. Both sound bars offer distinct advantages, making them suitable for different types of users and home setups.

