SKU: 44819434346

Polk Audio Signas S4 Soundbar Dolby Atmos 3.1.2ch

Sale price$314.55 Regular price$349.50
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

Polk Audio Signas S4 Soundbar Dolby Atmos 3.1.2chDolby Atmos Certified 3. 1. 2 Sound Bar System VoiceAdjust TechnologyHear Every Word Customizable SoundMovie, Music, and Night Modes One Cable Set Up With Any TV (eARC or ARC HDMI, Optical, or Aux) True Dolby Atmos Surround 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

  • 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)

True Dolby Atmos Surround 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

The Signa S4 sound bar’s advanced seven speaker array was designed to deliver a lifelike Dolby Atmos 3.1.2 listening experience. Its dedicated center channel provides crystal clear dialogue and its optimized left and right tweeters and woofers deliver a huge, wide sound stage. Plus, dual, up-firing speakers take advantage of Atmos’ height channels to send sounds over your head, rounding out your 3D sound immersion.

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

Optimized Sound Modes

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

Sets Up In Seconds

Set up is easy: simply connect the included HDMI or optical cable (or aux-in for 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. Lastly, Signa S4’s low-profile design won’t block your TV or your remote and can also be wall-mounted for flexible placement.

50 Years of Engineering The Perfect Home Theater Sound

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

Tech Specs

 

SOUND BAR

 

 

  • HDMI (eARC) output,optical input, Analog 3.5mm input, Bluetooth, USB-A (for firmware updates)
  • Dolby Atmos, Dolby TrueHD, Dolby Digital Plus, Dolby Digital, MPEG-2 AAC, MPEG-4 AAC, Linear PCM(7.1ch)
  • Movie, Music, Night, Voice Adjust
  • SBC
  • L/R Tweeter = 2 x 1" (25mm)
    L/R Mid = 2 x 4.7 x 1.6" (120mm x 40mm) Center Full Range = 1x 1" (25mm)
    Left Elevation/Right Elevation = 2 x 2.6" (66mm)
  • Woofer = 1 x 5.9" (15cm) (Round)
  • Sound bar, Subwoofer, Remote control, Power cord, HDMI cable, Optical cable, 2x AAA batteries, Quick Start Guide, Wall-mount template, Wall-mount spacers
  • Sound Bar: (W x D x H): 1046 x 95 x 60mm
    Subwoofer: 200×328×280mm
  • Weight
    Sound Bar: 2.9 kg
    Subwoofer: 4.1 kg

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 44819434346

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4.2 ★★★★★
Based on 21 reviews
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M
Verified Purchase
Mike
Birmingham, US
★★★★★ 5
Great sound mat for the price!
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
This is a good product. Many people go with KILMAT because of the value to price point. I did as well. When you clean the surface (in my case it was all painted metal) this stuff sticks very well. I do recommend you use a seam roller of some type, I used Lumiteco 3 piece roller set. This will help with adhesion and mostly flatten the overlapped edges. It also helps you see where you have rolled as it leaves little grooves. The difference when we had no sound mats and after was very impressive. We haven't finished our install yet and it is quieter than when we had an interior in the van. There are thicker mats available in other brands, but this will work great for our van build, but this helps keep the weight down. It is quality material, just be careful when you are removing the backing, the edge of the foil face can cut you. I suggest you layout where you are installing the mat and cut to fit. From what I have read, you don't need to cover every inch in the vehicle, just spot install for a big difference. I chose to cover most surfaces to help keep sound out when we are sleeping in the van. We haven't finished putting the van yet, but we have driven it around and been very satisfied with this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
P
Verified Purchase
Paul
Bozeman, US
★★★★★ 5
Excellent sound deadening mats
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
Purchased these for a 2020 Lexus RX350 due to the hollow sound of the car doors when shutting. They sounded cheap. The mats are super sticky and I applied them when the doors were hot from sitting in the sun. They alubutyl sticks like crazy and the end result was perfect. Now I have solid sounding doors. Good quality product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
Awesome product 👌
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
I love this stuff. I use it alot. Sticks great Easy to use Molds super easy Really helps with sound. Great product. I wish I could get sponsored for this product on my projects..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
J
Verified Purchase
john l fields
Charlottesville, US
★★★★★ 5
Good product at a good price
Style: 80 mil 36 sqft
This product works great and easy to install. I do two or more vehicles a month. I switch to this brand a year ago and would recommend to everyone of my customers
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
N
Verified Purchase
napoli
Omaha, US
★★★★★ 4
Good deal for the price
Style: 80 mil 18 SqFt
The product is good and contrary to some comments I read it was not a mess to install and went on very nicely. That said I placed on a 71 Baracudda and starting from a 71db I was able to drop that down to about 66 with two layers Kilmatt 80mil
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026

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