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LG S20A 2.0 ch. Soundbar, Dolby Digital, TV vs Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer

Updated July 2026 — LG S20A 2.0 ch. Soundbar, Dolby Digital, TV wins on price and features, Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer wins on design.

The LG S20A offers better value and features for budget-conscious consumers, while the Polk Audio Signa S2 excels in dialogue clarity and home theater experience.

Why LG S20A 2.0 ch. Soundbar, Dolby Digital, TV is better

Price

LG S20A is significantly cheaper at $116.99.

Features

LG S20A includes AI Sound Pro for real-time EQ adjustments.

Sales Rank

LG S20A has a higher sales rank of 2046.

Why Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer is better

Subwoofer

Polk Audio Signa S2 includes a wireless subwoofer.

Voice Clarity

Polk Audio Signa S2 features VoiceAdjust technology.

Design

Polk Audio Signa S2 has an ultra-slim profile.

Overall score

LG S20A 2.0 ch. Soundbar, Dolby Digital, TV
85
Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer
78

Specifications

SpecLG S20A 2.0 ch. Soundbar, Dolby Digital, TVPolk Audio Signa S2 Sound Bar for Smart TV with Subwoofer
Current Price$116.99$249.00
Average Price$97.84$248.74
Sales Rank20463206
SubwooferNoYes
Voice TechnologyNoYes

Dimension comparison

LG S20A 2.0 ch. Soundbar, Dolby Digital, TVPolk Audio Signa S2 Sound Bar for Smart TV with Subwoofer

Pricing Comparison

When it comes to pricing, the LG S20A is significantly more budget-friendly at $116.99, making it about 53% cheaper than the Polk Audio Signa S2, which retails for $249.00. This price difference of $132.01 may be a crucial factor for consumers looking for quality sound without breaking the bank. The LG S20A has also shown a better average price over the last 30 days at $97.84 compared to the Signa S2’s average of $248.74, suggesting that the LG soundbar offers better value in terms of current market pricing.

Sound Quality

Both soundbars promise to enhance your audio experience, but they do so in different ways. The LG S20A features Dolby Audio and DTS Digital Surround, which aims to deliver a rich and immersive sound experience. Its passive radiator is designed to boost bass, ensuring that viewers can enjoy deep, resonant audio with everything they watch. On the other hand, the Polk Audio Signa S2 includes a wireless subwoofer and utilizes VoiceAdjust technology to enhance dialogue clarity, making it a great choice for movie lovers who prioritize sound detail. While both products aim for immersive audio, the specific features cater to different listening preferences.

Design and Build

The LG S20A offers a sleek design with a new crest style that’s not only visually appealing but also practical, as its metal grill helps keep dust and debris away. This small design footprint makes it easy to fit into various setups. In contrast, the Polk Audio Signa S2 boasts an ultra-slim profile, measuring just over 2 inches in height, ensuring it won't block your TV or remote sensor. While both soundbars are designed to blend seamlessly with your home entertainment system, their distinct aesthetics cater to different consumer tastes.

Connectivity Options

Connectivity is crucial for modern soundbars, and both the LG S20A and Polk Audio Signa S2 offer versatile options. The LG S20A simplifies the connection process with HDMI ARC, allowing for a single cable setup between the soundbar and TV. This reduces cable clutter, making it user-friendly. Conversely, the Signa S2 also supports HDMI and optical connections, as well as Bluetooth streaming from devices like smartphones and tablets, which adds additional flexibility for users who enjoy wireless music streaming. Both soundbars provide essential connectivity, but the LG’s single-cable solution may appeal more to those seeking a tidy setup.

Features and Technology

The LG S20A is equipped with innovative features like AI Sound Pro, which adjusts equalizer settings in real-time for a tailored listening experience. It also allows control of both the soundbar and LG TV with a single remote, creating a seamless user experience. The Polk Audio Signa S2 focuses on voice clarity with its exclusive VoiceAdjust technology, ensuring that dialogue is not lost in the mix of sound. It also supports streaming through Bluetooth, making it suitable for users who want to enjoy music from various apps. Each soundbar excels in its own technological offerings, catering to different listening needs.

User Experience and Setup

Both soundbars are designed for easy setup and use. The LG S20A can be quickly set up with a single HDMI cable, making it straightforward for users who may not be tech-savvy. The LG ThinQ App further enhances the user experience by allowing customization of sound settings directly from a smartphone. Meanwhile, the Polk Audio Signa S2 includes all necessary cables for setup, ensuring that users can start enjoying their soundbar right out of the box. The quick setup and easy-to-use features of both soundbars make them accessible to a wide range of users.

Brand Reputation

Brand reputation can influence consumer decisions, and both LG and Polk Audio have established themselves in the audio market. The LG S20A holds a sales rank of 2046, while the Polk Audio Signa S2 is ranked slightly lower at 3206. This indicates that the LG soundbar has gained more traction in terms of sales, potentially reflecting higher consumer satisfaction or brand trust. Both brands offer reliable products, but LG's stronger sales performance may appeal to buyers looking for trusted quality.

Which should you buy?

The choice between the LG S20A and the Polk Audio Signa S2 ultimately depends on your specific needs and budget. If you're looking for an affordable soundbar that enhances your TV's audio with rich bass and smart features, the LG S20A is a compelling choice at $116.99. However, if you prioritize dialogue clarity and a complete home theater experience with a dedicated subwoofer, the Polk Audio Signa S2 at $249.00 may be worth the investment. Consider what features matter most to you—whether it’s price, sound quality, or specific technological advantages—to make the best decision for your audio setup.