vsversusfinder

Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer vs Roku Wireless Subwoofer

Updated August 2026 — Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer wins on brand reputation and design, Roku Wireless Subwoofer wins on setup ease.

The Polk Audio Signa S2 offers a complete sound system with superior audio quality, while the Roku Wireless Subwoofer is a budget-friendly enhancement for existing setups.

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

Complete System

Polk Audio Signa S2 is an all-in-one sound solution.

Sound Quality

Polk Audio delivers richer audio with deep bass.

Connectivity

Polk Audio offers multiple connection options.

Why Roku Wireless Subwoofer is better

Price

Roku Wireless Subwoofer is significantly cheaper.

Setup Flexibility

Roku can be placed anywhere up to 30 feet from the TV.

Remote Use

Roku uses existing remote, no extra remote needed.

Overall score

Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer
85
Roku Wireless Subwoofer
70

Specifications

SpecPolk Audio Signa S2 Sound Bar for Smart TV with SubwooferRoku Wireless Subwoofer
Price$249.00$129.00
Sales Rank32069139
Drivers5N/A
WirelessYesYes
SetupEasyRequires Roku

Dimension comparison

Polk Audio Signa S2 Sound Bar for Smart TV with SubwooferRoku Wireless Subwoofer

Overview of the Products

In this comparison, we will analyze the Polk Audio Signa S2 Sound Bar and the Roku Wireless Subwoofer. The Polk Audio Signa S2, priced at $249.00, is a complete sound bar system featuring a wireless subwoofer, while the Roku Wireless Subwoofer comes in at a lower price of $129.00 and is designed to enhance sound quality but requires compatibility with a Roku Smart Soundbar.

The Polk Audio Signa S2 has a bestseller rank of 3206, showing a decent level of popularity, while the Roku Wireless Subwoofer ranks slightly lower at 9139. This indicates that while both products are well-regarded, the Polk Audio model has a stronger presence in the market.

Design and Aesthetics

The design of the Polk Audio Signa S2 is ultra-slim, measuring just over 2 inches tall, making it suitable for various spaces without obstructing the TV’s view. Its sleek look allows for easy wall mounting or placement in front of a TV. Conversely, the Roku Wireless Subwoofer can be placed anywhere up to 30 feet from the TV, offering flexibility in setup but does not provide a complete sound system on its own.

Both products focus on minimalistic aesthetics, but the Polk Audio Signa S2 stands out with its integrated design, including the wireless subwoofer. The Roku model, while functional, emphasizes additional placement options rather than a cohesive visual appeal.

Sound Quality

The Polk Audio Signa S2 is designed to deliver rich audio with deep bass thanks to its five full-range drivers and a dedicated wireless subwoofer. It features Polk’s exclusive VoiceAdjust technology and Dolby Digital decoding, ensuring clear dialogue and immersive sound. Meanwhile, the Roku Wireless Subwoofer aims to enhance existing audio systems by providing 150 watts of peak bass.

In terms of sound quality, the Polk Audio Signa S2 is a more comprehensive solution, offering a fully integrated audio experience. The Roku Wireless Subwoofer is a supplementary accessory that enhances sound but lacks the all-in-one capability of the Signa S2.

Connectivity Options

Polk Audio's Signa S2 offers multiple connectivity options, including HDMI, optical inputs, and Bluetooth, allowing users to connect a variety of devices seamlessly. This versatility enables users to enjoy audio from numerous sources, including 4K and HD TVs, without the need for additional equipment.

On the other hand, the Roku Wireless Subwoofer does not function independently and requires pairing with an existing Roku Smart Soundbar. This limitation could be a drawback for those looking for a standalone solution. While both products offer wireless streaming capabilities, the Polk Audio model provides significantly more options for connection.

Setup and Installation

The setup process for the Polk Audio Signa S2 is straightforward and quick. It includes an HDMI cable and allows users to connect their TV and get started within minutes. The low profile of the sound bar makes it easy to integrate into most living spaces.

In contrast, the Roku Wireless Subwoofer is designed for easy wireless pairing with a Roku Smart Soundbar. However, since it requires another device to function, the initial setup may be less straightforward for users without that system. The convenience of the Polk Audio Signa S2's plug-and-play nature makes it more appealing for those seeking an uncomplicated installation.

Price Comparison

The Polk Audio Signa S2 is priced at $249.00, whereas the Roku Wireless Subwoofer is available for $129.00, making it about 48% cheaper. This price difference reflects the additional features and capabilities of the Polk Audio Signa S2, which is a complete sound system versus a supplement to an existing setup.

For budget-conscious consumers looking for a standalone sound system, the price point of the Roku Wireless Subwoofer may be attractive, but it does not offer the same level of functionality as the Polk Audio model. The investment in the Polk Audio Signa S2 could yield better audio performance and versatility for a home theater setup.

User Experience and Reviews

Customer reviews indicate that the Polk Audio Signa S2 is highly praised for its audio clarity and ease of use. Users appreciate the VoiceAdjust technology that enhances dialogue, making it ideal for movie watching. Its average price over the last 90 days has been around $246.73, indicating stable pricing and consumer interest.

The Roku Wireless Subwoofer, while well-reviewed for its ease of use and sound enhancement capabilities, is often noted as needing the accompanying Roku Smart Soundbar to achieve its full potential. The lower sales rank suggests it may not be the first choice for consumers looking for a complete audio solution.

Which should you buy?

If you're seeking a comprehensive sound solution, the Polk Audio Signa S2 is the superior choice due to its integrated design, rich sound quality, and versatile connectivity options. Priced at $249.00, it offers a robust audio experience that can significantly enhance your home theater setup.

Conversely, if you already own a Roku Smart Soundbar and simply want to add a powerful subwoofer for $129.00, the Roku Wireless Subwoofer is an excellent option. However, it lacks the all-in-one functionality of the Polk Audio Signa S2. Ultimately, the decision hinges on whether you need a complete sound system or an enhancement to an existing setup.

Polk Audio Signa S2 Sound Bar for Smart TV with Subwoofer, Wireless – Exclusive VoiceAdjust Technology, Ultra-Slim Design, Works with 4K & HD TVs, HDMI & Optical, Bluetooth, Wireless Streaming vs Roku Wireless Subwoofer (ONN) | versusfinder