Signa S4D

Dolby Atmos 3.1.2 Sound Bar System in online exclusive finish

C$ 529.00
3.8 out of 5 Customer Rating
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Experience award-winning Dolby Atmos sound with deep, extended bass, whether you’re enjoying your favorite movies, music, TV shows, or games.

  • 3D Audio with Dolby Atmos & DTS:X
  • VoiceAdjust™ technology
  • Bluetooth
  • 7 driver array
  • 5.9" wireless subwoofer
  • 41.2" x 3.7" x 2.4" (Bar)

  • In Stock

C$ 529.00

Signa S4D

Signa S4D

C$ 529.00
C$ 529.00
Estimated to ship on {0}
True Dolby Atmos Surround Sound

Award-Winning Immersive Sound

Signa S4D is Dolby Atmos Certified®, immersing you in a multidimensional soundstage that extends above and around you—from rich, immersive music to ultra-lifelike sounds flying overhead. But don’t take our word for it: Rolling Stone named Signa S4 the “2022 Best Sound Bar for Home Theater."

Signature Polk sound

Get Ready for Bass you can Feel

Bring arena vibes to your living room with powerful, room-shaking bass, thanks to Signa S4D’s companion wireless subwoofer. Place the subwoofer anywhere in the room and use Signa S4D’s BassAdjust™ mode to dial in seamless sound balance in this perfect pairing.

Hassle-Free, Clutter-Free Setup

Get up and running in seconds—even with 8K Ultra HD TVs—using Signa S4D’s included HDMI or optical cable; for older TVs, simply connect your aux in. Signa S4D automatically works with leading TV remotes and effortlessly streams your favorite music via Bluetooth.

Signa S4D

Cinematic Dolby Atmos sound at home

Signa S4D

Cinematic Dolby Atmos sound at home

Signa S4D’s two dedicated upfiring speakers deliver Atmos “height” sound, for an incredibly lifelike 360-degree sound field.

Place Signa S4D under your TV or on the wall, for sound that you can’t miss in a speaker you barely notice.

We’ve poured 50 years of hi-fi innovation into Signa S4D to deliver the ultimate in performance and value.

Key Technologies

  • Upgrade your home theater with height speakers to unleash a fully immersive 3D audio experience, or engage all speakers to create a 3D audio sensation from legacy content even without height speakers.
  • Connect and play music directly from your smartphone, tablet or other compatible device.
  • eARC (Enhanced Audio Return Channel) makes playing TV audio simple with a single HDMI connection. eARC supports HD and 3D audio formats such as Dolby TrueHD, DTS HD Master Audio, Dolby Atmos and more.
  • Connect your audio source, such as a TV, Blu-ray player, or game console using an optical cable. This digital connection ensures high-quality audio transmission, delivering clear and accurate sound.
  • Connect audio sources such as smartphones, tablets, or MP3 players using a standard 3.5mm auxiliary cable. The aux input provides a simple and versatile way to play audio from your portable devices.
  • Adjust the vocal levels from the sound bar with Polk Voice Adjust technology for clear, easy-to-understand dialogue.
  • 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 bingewatching sessions.
  • Proudly engineered and designed in Baltimore, Maryland, Polk products are crafted to meet high standards of quality, performance, and reliability, ensuring a premium audio experience that is the pinnacle of American Hi-Fi.

Compare Polk Sound Bars

Signa S4D
Details & Specifications

Slim, elegant design

Slim, elegant design


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What is the total wattage of the signa sd4? What is the warranty?

Asked by: East Coaster
Hello, since this is not a passive speaker and is instead a powered sound bar, we do not have published specs on wattage. As for the warranty, it is as followed Powered SurroundBar Systems – 1 Year Amplifiers / 3 Years Speakers for more warranty information, you can follow this link
Answered by: Polk Audio
Date published: 2023-12-20

How is it different from Signa S4?

Asked by: Pramod
Hello, The Signa SD4 and the Signa S4 are identical in specification.
Answered by: Polk Audio
Date published: 2023-12-07
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