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Polk Audio Signa S4

Polk Audio Signa S4

Dolby Atmos sound bar and wireless subwoofer system for immersive home theater audio.

hardwareSoundbars & Home Theater SystemsSoundbarDolby AtmosHome Theater
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Our Verdict

Best for

Movie lovers wanting immersive Dolby Atmos and deep bass.

Skip if

Users needing built-in Wi-Fi or smart assistant integration.

What is Polk Audio Signa S4?

The Polk Audio Signa S4 delivers immersive, cinematic sound to your living room through advanced Dolby Atmos technology and an included wireless subwoofer. Designed to seamlessly integrate with modern 4K and 8K TVs, it transforms everyday television viewing, movie nights, and music listening into a true surround sound experience. Featuring Polk's patented Voice Adjust technology, the sound bar ensures crystal-clear dialogue so you never miss a word. Setup is effortless with the included HDMI eARC and optical cables, allowing you to control the volume using your existing TV remote while enjoying robust, room-filling bass from the down-firing subwoofer.

SpecificationsAI-estimated

msrp$399
weightSoundbar: 3.1 lbs; Subwoofer: 9.2 lbs
warranty1 Year Limited
dimensionsSoundbar: 41.3 x 2.4 x 3.7 inches; Subwoofer: 7.9 x 12.8 x 15.6 inches
open source❌ No
connectivityHDMI eARC, Optical In, Bluetooth, Aux In, USB-A (for service)
power sourceAC Powered

Key Features of Polk Audio Signa S4

The sound bar features advanced Dolby Atmos certification to deliver height effects and multidimensional spatial audio for a truly cinematic experience.
An included wireless subwoofer pairs automatically with the sound bar to deliver deep, impactful bass without the clutter of physical cables.
Polk Voice Adjust technology allows users to customize voice levels independently to ensure crisp, easy-to-understand dialogue during quiet scenes.
HDMI eARC connectivity simplifies setup with a single cable connection to modern televisions while supporting uncompressed high-resolution audio formats.
Built-in Bluetooth capability lets users easily stream their favorite music, podcasts, and playlists directly from a smartphone or tablet.
Dedicated sound modes optimize audio output specifically for movies, music, or late-night viewing with compressed dynamic range.

Use Cases for Polk Audio Signa S4

1

Movie Nights

Delivers cinematic surround sound and deep bass to elevate home movie viewing experiences.

2

TV and Dialogue Enhancement

Uses Voice Adjust technology to make whispered or fast-paced dialogue completely clear during broadcasts.

3

Music Streaming

Streams high-quality wireless audio directly from mobile devices via Bluetooth connectivity.

4

Gaming Audio

Enhances gaming sessions with spatial accuracy and immersive sound effects for compatible consoles.

Pros & Cons of Polk Audio Signa S4

Pros

  • Immersive Dolby Atmos height effects
  • Included wireless subwoofer for deep bass
  • Voice Adjust technology for clear dialogue
  • Simple setup with HDMI eARC and optical cables

Cons

  • Lacks built-in smart assistant integration
  • No Wi-Fi streaming support built-in
  • Limited physical audio inputs beyond HDMI and optical

Frequently Asked Questions

Does the Polk Audio Signa S4 support Dolby Atmos?

Yes, the Signa S4 is fully certified for Dolby Atmos to deliver height channels and multidimensional sound.

How does the subwoofer connect to the sound bar?

The wireless subwoofer pairs automatically to the sound bar upon powering up, requiring only an AC power outlet.

Can I use my existing TV remote to control the volume?

Yes, when connected via HDMI eARC or optical, the sound bar typically responds to your standard TV remote commands.

Does this sound bar support Bluetooth streaming?

Yes, you can easily pair your smartphone, tablet, or laptop via Bluetooth to stream music wirelessly.

Pricing Overview

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Paid (One-time)

Detailed plans are not listed. Visit the official website for pricing information.

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Target AudienceHome theater enthusiasts and movie lovers

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Tags

SoundbarDolby AtmosHome TheaterWireless SubwooferAudio

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