Signa S4

Dolby Atmos 3.1.2 Sound Bar with Wireless Subwoofer

$399.00
5 out of 5 Customer Rating
Signa S4 is rated 4.6 out of 5 by 106.
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Enjoy the latest blockbuster releases, immersive music, and your favorite TV shows in the amazing 3D sound provided by Dolby Atmos* and the award-winning Signa S4.

  • Dolby Atmos Certified 3.1.2 Sound Bar System
  • VoiceAdjust™ Technology—Hear Every Word
  • Customizable Sound—Movie, Music, and Night Modes
  • One Cable Set Up With Any TV (eARC or ARC HDMI, Optical, or Aux)

Color
Black
Availability:
  • In Stock

$399.00

Signa S4

Signa S4

$399.00
$399.00
Estimated to ship on {0}
True Dolby Atmos Surround Sound

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

Signature Polk sound

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.

Signa S4

Powerful Home Cinema

Signa S4

Powerful Home Cinema

Eleven drivers—including two dedicated upfiring height speakers—expand the sound field above and around you.

It’s never been easier to fill your room with sound, without filling your room with speakers.

Leveraging 50 years of Polk hi-fi engineering innovation, Signa S4 is designed to deliver and built to last.

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 S4
Details & Specifications

Slim, elegant design

Slim, elegant design

Reviews

Rated 5 out of 5 by from Great sound Sounds great, easy to connect to my LGTv. Love that you can change it from music to movie and can increase the dialogue volume.
Date published: 2023-06-29
Rated 5 out of 5 by from Not the most expensive and great sound I replaced my previous Polk sound bar with the S4. What a world of difference between the two! The spatial sound that comes from this bar is amazing. As others mentioned the bass is limited, but it works well enough for me.
Date published: 2023-06-02
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Questions

If the soundbar is sitting flat on a stand, what angle are the up-firing speakers pointing with respect to straight upward?

Asked by: Hal9
Hello, the up-firing speakers have a 15-degree offset.
Answered by: Polk Audio
Date published: 2024-02-06

I’m interested in the Signa 4 but am curious whether I could pt the sound bar in a shelf that is only 6” high and how that will affect the atmos up-firing drivers sound. I can put it right up to the edge would that give the drivers enough of an angle to ?

Asked by: Tjf59
Hello, and thank you for your interest in our S4 Soundbar. Yes, I believe you have the correct approach to successfully placing the S4 soundbar on a shelf while maximizing the up-firing Atmos speakers. Yes, the Atmos effect is best when placed on an open shelf, but pulling the Bar forward with a 6" clearance and a slight angle forward should prove successful.
Answered by: Polk Audio
Date published: 2024-02-02

Can Polk S4 be mounted on bottom of TV?

Asked by: DTG57
Hello Kingsport, yes, the Polk Audio S4 Soundbar can be mounted to the bottom of a Television using a third-party soundbar mount. However, it is important not to cover the up-firing Atmos speakers as this will prevent the soundbar from providing an Atmos effect. Some soundbar mounts allow the soundbar to be placed forward of the Television, allowing you to mount the soundbar to the TV while not losing the Atmos effect. Please consult with your local AV store for soundbar mount options.
Answered by: Polk Audio
Date published: 2024-01-31

Will this sound bar work well if mounted well above the tv? Say 7 feet high.

Asked by: RJinKY
The performance of the soundbar is best just above ear level when seated. With that being said, the Polk Audio S4 is capable of providing a large soundstage and works well in most all environments. If possible, I recommend tilting the soundbar towards the listening position.
Answered by: Polk Audio
Date published: 2024-01-16

My tv is hooked to my soundbar using the ARC hdmi port. My Roku 4k device and blu ray player are hooked into the soundbars extra hdmi ports. Since the S4 only has one hdmi port, will it matter if everything else is plugged directly into the tv?

Asked by: Bengi
My tv has optical and ARC but not eARC. In what way will that limit my experience? Also does this system have bluetooth?
Answered by: Toad
Date published: 2023-12-11

Hi  I am interested in adding additional rear Polk speakers to the Signa s4. Would this be possible to add or could you please advise which ones I could add rear surround speakers to. Many Thanks  Brad

Asked by: Brad001
Hello, As the Signa S4 is a self-contained unit. unfortunately it does not support additional speakers. The SR-2 wireless surround speakers are supported by the following Polk Audio Soundbars; MagniFi 2, MagniFi Mini AX, MagniFi Max AX, and Polk React. Here is a link to the details: MagniFi Series https://www.polkaudio.com/en-us/category/magnifi-series/ React Series https://www.polkaudio.com/en-us/category/react-series/
Answered by: Polk Audio
Date published: 2023-11-30

What is the power output for the S4?

Asked by: Bob308
Hello, and thank you for your question. The power output is not provided as each driver has a dedicated amplifier providing the power needed during playback.
Answered by: Polk Audio
Date published: 2023-12-24

Which sound mode would be used for general TV watching if not watching a movie or listening to music? Night mode?

Asked by: Bob0422
Hello, This is entirely up to you. Each sound mode will change how the sound is output and you may find that you prefer one over the other. Try switching through sound modes and voice adjust modes to see if you prefer one over the others. As reference, Night mode Compresses the dynamic range (difference between loud and soft sounds) to make audio easier to hear at low volumes so you can lower your volume at night and still hear the sound clearly.
Answered by: Polk Audio
Date published: 2023-11-28
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