---
product_id: 206249362
title: "Signa S3 Sound Bar & Wireless Subwoofer, Low-Profile Design | Built-in Chromecast & Google Assistant, Exclusive VoiceAdjust Technology, For 8K, 4K & HD TVs, Bluetooth, Wireless Streaming"
brand: "polk audio"
price: "$978.06"
currency: USD
in_stock: true
reviews_count: 13
category: "Polk Audio"
url: https://www.desertcart.us/products/206249362-signa-s3-sound-bar-and-wireless-subwoofer-low-profile-design
store_origin: US
region: United States of America
---

# 2" ultra-slim profile Wi-Fi + Bluetooth streaming 80W max output power Signa S3 Sound Bar & Wireless Subwoofer, Low-Profile Design | Built-in Chromecast & Google Assistant, Exclusive VoiceAdjust Technology, For 8K, 4K & HD TVs, Bluetooth, Wireless Streaming

**Brand:** polk audio
**Price:** $978.06
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your home theater game with sleek sound that speaks volumes!

## Quick Answers

- **What is this?** Signa S3 Sound Bar & Wireless Subwoofer, Low-Profile Design | Built-in Chromecast & Google Assistant, Exclusive VoiceAdjust Technology, For 8K, 4K & HD TVs, Bluetooth, Wireless Streaming by polk audio
- **How much does it cost?** $978.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/206249362-signa-s3-sound-bar-and-wireless-subwoofer-low-profile-design)

## Best For

- polk audio enthusiasts

## Why This Product

- Trusted polk audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Setup:** Includes HDMI and optical cables for effortless connection to 4K/8K TVs—get theater-grade sound in minutes.
- • **Tailored Audio Clarity:** Polk’s exclusive Voice Adjust technology and Dolby Digital 5.1 decoding ensure every word and note is perfectly balanced.
- • **Sleek & Space-Savvy Design:** At just 2" tall, the Signa S3 fits seamlessly under any TV without blocking your view or remote sensor.
- • **Smart Streaming & Voice Control:** Built-in Chromecast and Google Assistant compatibility let you stream music and control sound hands-free.
- • **Immersive 2.1 Channel Surround Sound:** Dual mid-range drivers, tweeters, and a wireless 5.25" subwoofer deliver deep bass and crystal-clear dialogue.

## Overview

The Polk Audio Signa S3 is a low-profile 2.1 channel soundbar system featuring 80W output, a wireless 5.25" subwoofer, and advanced voice clarity tech. Compatible with 4K/8K TVs, it supports Bluetooth and Wi-Fi streaming via built-in Chromecast and Google Assistant, offering a quick setup and immersive surround sound experience tailored for modern living spaces.

## Description

The low-profile Signa S3 sound bar delivers an incredible, room-filling home theater experience. Built to work with any HD, 4K and 8K TV via HDMI ARC, the Signa S3 sound bar for smart TVs is easy to set up and can be controlled with a single remote. This Polk audio soundbar features Polk-patented Voice Adjust technology for clear dialogue, and Dolby Digital decoding for immersive, performance-tuned surround sound. Comes equipped with a wireless subwoofer for deep bass impact. Plus, stream your favorite music with Chromecast built-in and Google Play Music, desertcart Music HD, Apple Music, Roon, Qobuz, Spotify, Tidal and many more. This narrow, sleek sound bar can fit in most spaces be it on a tabletop or a mantle and can also be wall mounted.

Review: Happy To Have This Polk Signa S3 with WiFi - Aug 30, 2020 Update: Still loving it ... We have, since first review, tried and succeeded in getting our Google speaker (Google Assistant) to cast its music to the Polk Signa S3 Soundbar/subwoofer - which is precisely why I anted up for the S3 model. (The secret seems to be to assign a name to the soundbar as a device, in my case 'Living Room Speaker', using the Google Home app (done on my phone) and then you can use a voice command to just tell Ms Google 'OK Google, play music on the Living Room Speaker'). Anyway, that wifi access is a feature of the S3 level of this Polk product - very happy with that feature. (If I have this correctly, this works because the Google Assistant device and the Polk device are on the same wifi router - I don't know that it works of you have one on 2.4GHz and the other on your 5GHz, just sayin'.) We stream a lot of music from YouTube on the Sony Smart TV, also, so having the Polk Signa for that is a big upgrade from the TV speakers. Love this soundbar, incl the bluetooth access and wifi access, and would definitely buy this Signa S3 again. I had in mind a $300 budget while shopping for such a device and I'm very happy to have come in under budget with a great audio outcome. --- We haven't tried the access from our Google Assistant/Speaker yet, but very happy with this Soundbar/Subwoofer set. I first set it up on our LG Smart UHD with the ARC HDMI connection to try it out. It went so smoothly and easily (the LG TV setup has a selection to route audio to the ARC HDMI port) - this went so quickly that I decided to plug in the Subwoofer also to see how that went and bingo - came right on line (subwoofer has a button in back to press to sync with soundbar). But that LG system of ours normally is optical audio out to a stereo with our BIG JBLs (quad 10" :) so I then moved the Polk to our Sony Bravia, also using ARC HDMI for audio connection. For the Sony, no TV Setting selection change was required - Sony just routed the audio out ARC HDMI once the Polk soundbar was plugged in and powered up. Had the same quick success with subwoofer - came on line immediately after button push on the back of subwoofer speaker. The Sony TV and our Xfinity Cable/DVR remotes both cause the soundbar to power up/down when 1/0 pressed on remote. They also control the volume on the soundbar appropriately. (Of course, the Polk remote still controls audio properly, also.) Bluetooth came up and worked easily. Will update once we've experimented with bluetooth and Google Assistant access. I see in the manual, page 4, that there is a way to disable the auto-standby feature which many purchasers seem to complain about. I have not played with that (hold down Night Mode button for 5+ seconds). BTW, I love that for both the soundbar and subwoofer, the power cords plug right into the box with NO bricks - I hate bricks (aka, external transformers).
Review: Budget minded - Awesome for the price! If you’re on a budget like me, this is a great choice!

## Features

- ULTRA-SLIM SOUNDBAR WITH WIRELESS SUBWOOFER – Features 2.1 channel performance-tuned drivers - (2) 1.25” x 4.4”oval mid-range drivers & (2) 1” Tweeters, and the included 5.25” subwoofer delivers incredible room-filling surround sound with deep bass
- POLK’S EXCLUSIVE VOICE ADJUST TECHNOLOGY & Dolby Digital 5.1 decoding help maximize sound clarity and reduce voice delays in this soundbar for TV with subwoofer; hear clear, crisp dialogue from movies, TV shows & sports with three distinct settings
- EXCELLENT SOUND & VALUE on par with any mid- to high-range soundbars; at 2" tall, the Signa S3 Polk soundbar with subwoofer fits most spaces; easily wall-mount it or place in front of your TV; it won’t block your TV’s bottom edge or IR remote sensor
- UPGRADE YOUR HOME THEATER SURROUND SOUND SYSTEM – Watch favorite shows on your 4K/8K HD Smart TV with exceptional picture quality & clear sound, then plug in any audio source via HDMI ARC, optical input or 3.5mm jack for great home theater audio
- WIRELESSLY STREAM MUSIC to these bluetooth speakers from streaming apps like Pandora, Spotify, TuneIn, and more using a smartphone, tablet or other devices via Bluetooth, or use Google Chromecast for music over Wi-Fi with a Google Home speaker
- SET UP YOUR TV SOUNDBAR WITH SUBWOOFER IN MINUTES — the included HDMI and optical cables quickly connect your TV and subwoofer to the sound bar

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B089HY2K1R |
| Additional Features | Soundbar |
| Age Range Description | Adult |
| Antenna Location | For Televisions |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #4,216 in Electronics ( See Top 100 in Electronics ) #20 in Home Audio Sound Bars |
| Bluetooth Range | 10 Meters |
| Brand | Polk Audio |
| Built-In Media | HDMI cable, Optical cable, Remote control with batteries, Sound Bar, Subwoofer |
| Color | Black |
| Compatible Devices | Phones, Smartphone, Tablet, Television |
| Connectivity Protocol | Bluetooth, Wi-Fi |
| Connectivity Technology | wired, wireless |
| Control Method | Remote, Voice |
| Controller Type | Voice Control |
| Customer Package Type | FFP |
| Customer Reviews | 4.2 out of 5 stars 1,731 Reviews |
| Enclosure Material | Plastic |
| Frequency Response | 20 KHz |
| Is Waterproof | False |
| Item Dimensions D x W x H | 3.25"D x 35.37"W x 2.12"H |
| Item Type Name | Soundbar |
| Item Weight | 8.6 Kilograms |
| MP3 player | No |
| Manufacturer | Sound United |
| Model Name | Signa S3 |
| Model Number | Signa S3 |
| Mounting Type | Wall Mount |
| Number of Audio Channels | 5.1 |
| Number of Items | 2 |
| Power Source | AC |
| Speaker Maximum Output Power | 80 Watts |
| Speaker Size | 2 Inches |
| Speaker Type | Soundbar |
| Specific Uses For Product | Home entertainment, Music streaming, Improving audio quality in various environments |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 5.25 Inches |
| Tweeter Diameter | 2.54 Centimeters |
| UPC | 747192131920 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 year manufacturer |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 5.25 Inches |

## Product Details

- **Audio Output Mode:** Surround
- **Brand:** Polk Audio
- **Connectivity Technology:** wired, wireless
- **Frequency Response:** 20 KHz
- **Speaker Maximum Output Power:** 80 Watts

## Images

![Signa S3 Sound Bar & Wireless Subwoofer, Low-Profile Design | Built-in Chromecast & Google Assistant, Exclusive VoiceAdjust Technology, For 8K, 4K & HD TVs, Bluetooth, Wireless Streaming - Image 1](https://m.media-amazon.com/images/I/41IYSayTo2L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: What are the length and height dimensions of the soundbar? How many watts is the soundbar and subwoofer?**
A: The wattage of the sound bar is 40 watts.  The subwoofer is also 40 watts!  That’s 40 watts each!  This is a very nice sounding sound bar!  The room the sound bar is in is 28 feet by 28 feet!  If your not happy with this sound bar, you don’t need a sound bar.  You need a sound system like I replaced with this bar.  My old sound system would shake the house and rattle the windows with 150 watts of awesomeness !  I now have hearing lose from all of the loudspeakers.  It may be impressive to shake the house, but believe me, it’s not worth your hearing.  My wife and kids are always getting mad because of having to repeat themselves so often.  I can hear fine.  I just wish everyone would talk louder! 😂  I was a sound man in a Art Center for over 15 years before retiring.  The hearing specialist said I need a pair of 5,000 dollar hearing aids.

**Q: Does it come with the arc hdmi cable?**
A: The HDMI cables I purchased clearly say they support HDCP 2.2 & 2.3, Enhanced Audio Return Channel (eARC) Dolby Atmos Vision and Hot Plugging.
My advice is look for a cable that has at least a 8K @ 60Hz refresh rate. 7680x4320 ultra HD resolution, compatible with 4K@120Hz and 2K@ 240Hz
I use a much more powerful sound bar but this applies to any TV that has a dedicated eARC port

**Q: What size is the subwoofer speaker**
A: Did anyone actually read his question? he asked the size of the subwoofer SPEAKER...It's 5.25" tiny little guy you aren't gonna get much bass

**Q: Will it work well with a samsung tv? or is it better to use a samsung sound bar?**
A: I have an older Samsung 56in TV built in 2009 (doesn't have a dARC connector) I have it attached with the optic fiber. It works great, but I do use the Polk remote to turn the sound on and off and adjust volume. I was using a Samsung soundbar and subwoofer, but Polk provides a vastly improved sound. And I don't have to continually adjust the volume to hear the dialog like I used to do with the Samsung sound bar.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Happy To Have This Polk Signa S3 with WiFi
*by J***T on August 23, 2020*

Aug 30, 2020 Update: Still loving it ... We have, since first review, tried and succeeded in getting our Google speaker (Google Assistant) to cast its music to the Polk Signa S3 Soundbar/subwoofer - which is precisely why I anted up for the S3 model. (The secret seems to be to assign a name to the soundbar as a device, in my case 'Living Room Speaker', using the Google Home app (done on my phone) and then you can use a voice command to just tell Ms Google 'OK Google, play music on the Living Room Speaker'). Anyway, that wifi access is a feature of the S3 level of this Polk product - very happy with that feature. (If I have this correctly, this works because the Google Assistant device and the Polk device are on the same wifi router - I don't know that it works of you have one on 2.4GHz and the other on your 5GHz, just sayin'.) We stream a lot of music from YouTube on the Sony Smart TV, also, so having the Polk Signa for that is a big upgrade from the TV speakers. Love this soundbar, incl the bluetooth access and wifi access, and would definitely buy this Signa S3 again. I had in mind a $300 budget while shopping for such a device and I'm very happy to have come in under budget with a great audio outcome. --- We haven't tried the access from our Google Assistant/Speaker yet, but very happy with this Soundbar/Subwoofer set. I first set it up on our LG Smart UHD with the ARC HDMI connection to try it out. It went so smoothly and easily (the LG TV setup has a selection to route audio to the ARC HDMI port) - this went so quickly that I decided to plug in the Subwoofer also to see how that went and bingo - came right on line (subwoofer has a button in back to press to sync with soundbar). But that LG system of ours normally is optical audio out to a stereo with our BIG JBLs (quad 10" :) so I then moved the Polk to our Sony Bravia, also using ARC HDMI for audio connection. For the Sony, no TV Setting selection change was required - Sony just routed the audio out ARC HDMI once the Polk soundbar was plugged in and powered up. Had the same quick success with subwoofer - came on line immediately after button push on the back of subwoofer speaker. The Sony TV and our Xfinity Cable/DVR remotes both cause the soundbar to power up/down when 1/0 pressed on remote. They also control the volume on the soundbar appropriately. (Of course, the Polk remote still controls audio properly, also.) Bluetooth came up and worked easily. Will update once we've experimented with bluetooth and Google Assistant access. I see in the manual, page 4, that there is a way to disable the auto-standby feature which many purchasers seem to complain about. I have not played with that (hold down Night Mode button for 5+ seconds). BTW, I love that for both the soundbar and subwoofer, the power cords plug right into the box with NO bricks - I hate bricks (aka, external transformers).

### ⭐⭐⭐⭐⭐ Budget minded
*by S***E on May 19, 2026*

Awesome for the price! If you’re on a budget like me, this is a great choice!

### ⭐⭐⭐⭐ Great, but...
*by S***Y on November 12, 2022*

I got this for my mom as a mother's day gift. She loves it and I thought i would be a great addition to add to her google home speakers. It was fine for a few months and then the connectivity issues began to happen. Mainly google chromecast. Seems like every couple of weeks my mom is calling or texting regarding connectivity issues. It's annoying! I don't want to blame the soundbar because polk has made a soild and great sounding system. And I also have chromecast built-in speakers at home and I too have these issues occasionally, if not a lot, on my system as well. Clearly google is pushing out and imposing a mediocre, if not faulty, product on companies and consumers and we're just now suffering the concequences. The other problem that I have with this and other chromecast devices is that, while you are suffering with connectivity issues, you rarely see any updates to fix these problems. I have an LG chromecast built-in in my bedroom and it's been two years since its last update. meanwhile I am constatly deleating and adding it to my google home just to get it working again. This Polk system hasn't seen an update since i got it for my mom last year and it could probably use one. That being said, If you buy this equiptment, buy it for the sound quality. The remote is a little lack luster and I wouldn't recommend that you buy it if the chromecast is what's drawing you to purchase it, as it will leave you frustrated over time.

## Frequently Bought Together

- Polk Audio Signa S3 Sound Bar for TV & Wireless Subwoofer with Built-in Chromecast & Google Assistant, Low-Profile Design, Works with 8K, 4K & HD TVs, Bluetooth and Wireless Streaming
- KabelDirekt Optical Audio Cable – 10ft Digital Optical Cable for soundbars, Fiber Optic Lead (Digital S/PDIF Cable, Stereo Systems/amplifiers/amps, Home Cinema, Xbox One/PS4)
- Highwings 8K 10K 4K HDMI Cable 48Gbps 6.6FT/2M, Certified Ultra High Speed HDMI Cable Braided Cord-4K@120Hz 8K@60Hz, DTS:X, HDCP 2.2 & 2.3, HDR 10 Compatible with Roku TV/PS5/HDTV/Blu-ray

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-30*