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Polk Audio Signa S4 Dolby Atmos 3.1.2 Soundbar with Wireless Subwoofer

Regular price $299.00
Sale price $299.00 Regular price
$399.00 Save $100.00 (25%)

Limited time offer! Sale ends 6/16/2024.
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Polk Signa S4 Overview

Product Information

Model: 300443-01-00-101 | UPC: 747192135829


What's In The Box

Product Documents

Product Information

Model: 300443-01-00-101 | UPC: 747192135829

True Dolby Atmos Sound Bar with Wireless Subwoofer, eARC, and Bluetooth

The Signa S4 Dolby Atmos 3.1.2 soundbar with wireless subwoofer delivers powerful, crystal clear, cinematic 3D surround sound—at an unbeatable value. Features VoiceAdjust™, Bass Adjust, and Night, Music, and Movie modes for customizable sound. Set up with virtually any TV by simply connecting one cable. Enjoy Bluetooth music streaming and more.


  • Enjoy movies, TV & games in stunning Dolby Atmos 3D surround sound
  • Seven speaker soundbar with up-firing drivers for fully immersive sound
  • Powerful wireless subwoofer for deep, effortless bass
  • Low-profile design won’t block your TV or your remote and can also be wall-mounted

Lifelike Movie Sound

Signa S4 is Dolby Atmos Certified* to immerse you in 360 degrees of surround sound. From added ambience in music to special effects flying overhead, Signa S4 provides an incredibly realistic sound environment. Plus, standard audio played through the Signa S4 can be up-mixed to create a virtualized Atmos experience. * Requires HDMI eARC connection between sound bar and TV. 

Advanced 3.1.2 Sound Bar

Enjoy the latest blockbuster releases, immersive music, and your favourite TV shows in the amazing 3D sound provided by Dolby Atmos and the Signa S4. Its advanced seven-driver array and wireless subwoofer deliver a lifelike Atmos listening experience with a huge soundstage and effortless bass. With Signa S4, you’ll hear sounds flying overhead courtesy of up-firing speakers that support Atmos height channels, and any non-Atmos content you watch can also be enjoyed in a virtual Atmos experience.

Polk VoiceAdjust™- Hear Every Word

Tired of riding the volume control to hear the dialogue during quiet scenes? Have trouble picking out voices when the bass kicks in? Polk’s VoiceAdjust was designed to make sure that you hear every word. This patented technology combines with Signa S4’s dedicated center channel to allow you to raise the volume of only the voices, making them clear and easy-to-understand, while leaving the rest of the soundtrack untouched.

Customizable Sound - Music, Movie, Night Modes

Late night binge-watching session? Don’t worry about waking your family or neighbors. With Night Mode, one button lowers the bass while increasing VoiceAdjust™ so you can hear every word, without raising the master volume. Plus, one-button, preset sound modes optimize the Signa S4 so you can have the best sonic experience for movie watching and music listening.

Deep Effortless Bass

Signa S4’s powerful wireless subwoofer provides the deep, effortless bass that Polk is famous for, at loudness levels that are surprising for its size. Polk's exclusive BassAdjust mode controls bass on both the sound bar and sub ensuring seamless blending. The subwoofer connects automatically on start-up and can be conveniently placed nearly anywhere in the room. Put it up front for maximum impact or try behind the couch to feel the rumble.

Sets Up in Seconds

Set up is easy: simply connect the included HDMI or optical cable (or aux-in on older TVs) for the ultimate sound quality for any TV—even the latest 8K Ultra-HD TVs. Signa S4 is pre-programmed to work with most TV remotes and it quickly pairs to your mobile device via Bluetooth to stream your favorite music. Signa S4’s low-profile design won’t block your TV or your remote. Signa S4 can be wall-mounted for flexible placement.


  • Inputs
    • (1) HDMI (eARC) output
    • (1) optical input
    • (1) Analog 3.5mm input, Bluetooth
    • (1) USB-A (for firmware updates)
  • Drivers
    • Sound Bar:
      • L/R Tweeter = 2 x 1"
      • L/R Mid = 2 x 4.7" x 1.6"
      • Center Full Range = 1x 1"
      • Left Elevation/Right Elevation = 2 x 2.6"
    • Subwoofer:
      • Woofer = 1 x 5.9" (Round)
  • Dimensions
    • Sound Bar: (W x H x D): 41.2" x 2.4" x 3.7"

What's In The Box

  • Signa S4 Dolby Atmos 3.1.2 Soundbar with Wireless Subwoofer
  • Remote Control
  • Power Cord
  • HDMI Cable
  • Optical Cable
  • Quick Start Guide
  • Wall-Mount Template
  • Wall-Mount Spacers

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