Polk Audio Signa S4 Dolby Atmos Soundbar with Wireless Subwoofer

$349.00 OR

Regular Price: $399.00

Save: $50.00 (13%)

Savings include $50 instant rebate. Offer ends 6/11/2023.
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Model: 300443-01-00-101 UPC: 747192135829 Item: 177364

Product Information

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

Five Decades of Engineering for the Perfect Home Theater Sound

Signa S4 was designed in Polk's Acoustic Research and Development center outside Baltimore, MD by the speaker experts at Polk. They have leveraged over 50 years of American hi-fi loudspeaker engineering so Signa S4 will deliver the surround sound experience you’ve always dreamed of in your home—but at a value, you could never imagine.

Dolby Atmos Certified 3.1.2 Sound Bar System

Enjoy the latest blockbuster releases, immersive music, and your favorite 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. *Requires HDMI eARC connection.

Customizable Sound to Hear Every Word and More

Polk’s patented VoiceAdjust™ technology combines with Signa S4’s dedicated center channel for clear, easy-to-understand dialogue. Bass Adjust controls bass on both the soundbar and sub ensuring maximum impact. Plus, one-button presets for movie watching and music listening, along with Night Mode—so you won’t wake the neighbors or kids during late-night binge-watching sessions.

Sets Up in Seconds

One simple connection via the included HDMI or optical cable (or aux-in for older TVs) ensures the ultimate listening experience with virtually any TV—even the latest 8K Ultra-HD TVs. For added convenience, Signa S4 is pre-programmed to work with most TV remotes out of the box and it quickly pairs to your mobile device via Bluetooth to stream your favorite music.



  • 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 x 2.4" x 3.7"

What's in the Box

What's in the Box

  • Soundbar
  • Subwoofer
  • Remote control
  • Power cord
  • HDMI cable
  • Optical cable
  • 2x AAA batteries
  • Quick Start Guide
  • Wall-mount template
  • Wall-mount spacers


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Jean G on Mar 12, 2022
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Jean G on Mar 12, 2022