---
product_id: 87168998
title: "Signa S2 Ultra-Slim Sound Bar for Smart TV with Subwoofer"
brand: "polk audio"
price: "$919.36"
currency: USD
in_stock: true
reviews_count: 13
category: "Polk Audio"
url: https://www.desertcart.us/products/87168998-signa-s2-ultra-slim-sound-bar-for-smart-tv-subwoofer
store_origin: US
region: United States of America
---

# Wireless subwoofer 5 full-range drivers VoiceAdjust tech Signa S2 Ultra-Slim Sound Bar for Smart TV with Subwoofer

**Brand:** polk audio
**Price:** $919.36
**Availability:** ✅ In Stock

## Summary

> 🎬 Elevate your home theater game with Polk’s sleek sound powerhouse!

## Quick Answers

- **What is this?** Signa S2 Ultra-Slim Sound Bar for Smart TV with Subwoofer by polk audio
- **How much does it cost?** $919.36 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/87168998-signa-s2-ultra-slim-sound-bar-for-smart-tv-subwoofer)

## 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

- • **Stream Your Vibe:** Built-in Bluetooth lets you wirelessly stream playlists from Spotify, Pandora, and more, turning your living room into a party.
- • **Bass That Moves You:** Wireless subwoofer delivers deep, room-filling bass with effortless placement freedom—no messy cables required.
- • **Crystal-Clear Dialogue:** Exclusive VoiceAdjust technology lets you customize voice clarity for flawless conversations in every scene.
- • **Plug & Play Perfection:** Includes HDMI ARC and optical cables for a lightning-fast setup—get immersive sound in minutes, no tech headaches.
- • **Cinematic Sound, Zero Clutter:** Ultra-slim 2" profile fits seamlessly under any 4K or HD TV without blocking IR sensors or screen edges.

## Overview

The Polk Audio Signa S2 is a premium ultra-slim soundbar paired with a wireless subwoofer, designed to enhance your 4K and HD TV audio experience. Featuring 5 powerful full-range drivers, exclusive VoiceAdjust technology for clear dialogue, and Dolby Digital decoding, it delivers immersive surround sound. With versatile connectivity options including HDMI ARC, optical input, and Bluetooth streaming, it offers easy setup and seamless integration into any home theater setup.

## Description

The low-profile Signa S2 universal TV sound bar—a TV soundbar with subwoofer—delivers an incredible, room-filling home theater experience far beyond anything you get from your set’s small built-in speakers. It works with 4K and HD screens so you can watch your favorite shows with exceptional contrast and clarity. An included HDMI cable enables quick, easy setup. Polk’s patented VoiceAdjust technology ensures clear dialogue, while Dolby Digital decoding provides immersive, performance-tuned surround sound. A wireless subwoofer adds deep bass impact. Plus, you can stream music through Bluetooth directly from a smartphone, tablet, or any compatible device—a true polk soundbar solution used for cinematic home theater audio. At just 2" tall, the bar fits most spaces and is simple to wall-mount or place in front of the television

Review: Easy to setup, easy to use, great sound - This relatively low cost sound bar has remarkably good sound for such a low profile. Setup was easy. It came with HDMI and optical cables for attachment to the TV. I attached the HDMI to the ARC (Audio Return Channel) HDMI connection of my flat panel and just turned it on. The TV recognized the sound bar by turning off its internal speakers and playing sound through the sound bar. Additionally, it shows the audio level bar on-screen whenever the TV or sound bar remotes are used to adjust the audio level. I plugged in the wireless subwoofer and it connected automatically to the sound bar, but there is also a manual process if necessary. It is also easy to use. There are various adjustments that can be made with the sound bar remote, but once these were made we only use the TV remote. The sound bar appears to go into sleep mode when the TV is off and comes back on when the TV is turned on. It is compatible with Dolby 2.1 content, but it cannot be upgraded with additional speakers. There are five inconspicuous buttons on the top of the sound bar: on/off, source selection, Bluetooth on/off, volume down, and volume up. Bluetooth is used for playing sound from other sources like a smart phone. These buttons also appear on the sound bar remote along with other buttons for mode selections. There are three sound buttons: Movie, Night, and Music. We use the Movie mode mostly as it “expands” the soft and loud sounds as if in a movie theater but with 2.1 speakers. The Night mode “compresses” the sound levels, making “quiets” a little louder and “louds” a little lower. This mode is good for late night listening with the sound turned down so that others aren’t disturbed by loud explosions and you can still hear the “quiet” portions. The final sound mode, Music, is for listening to music with the frequencies set at a more equal distribution. There are also three buttons for Voice Adjustment. These adjust the voice frequencies to make voices easier to understand. At the highest level, number 3, we can tell that voices are much clearer but they sound somewhat unnatural. Consequently, we normally use level 1 and occasionally level 2 when necessary. There are a series of lights on the front screen to indicate operation and when modes are selected. The main light comes on when the sound bar is in operation and goes off when it goes into sleep mode. This is a soft light and I do not notice it when watching the TV. The color changes whenever the Dolby 2.1 signal is received and being used. Other lights on the front will turn on momentarily whenever a new mode or source is selected to indicate that the signal has been received and the change made. There is also a light that comes on when Bluetooth is turned on. This goes off when Bluetooth is turned off or when Bluetooth goes into sleep mode if it is not in use for more than 15 minutes. Note, the auto sleep mode is not the default and this option has to be manually selected to be in use. This sound bar produces much better sound than the TV speakers and requires little attention once the adjustments are set; we mostly use the TV remote. My only criticism regards adjusting the subwoofer levels. The subwoofer has bass minus and plus adjustment buttons on the remote but, unlike the other mode adjustments, there is no visual indication that anything is happening when this is used. There isn’t even an indicator that it is wirelessly linked except for the lights used when manually connecting it. The bass can be adjusted up to the point that deep voices and drums rattle items on the shelves in the room. When adjusted down to reduce such rattles we have no way of knowing if we are at a mid or lowest level. The bass can be adjusted to what is being listened to, but it would be nice to know the actual setting so that a “standardized” level could be selected for particular circumstances.
Review: Good sound, clear dialog, turns on/off automatically - June 2020: still functioning perfectly. I think once or twice I’ve had to unplug the subwoofer to get it work again. Very rare occurrence. The remote can be slightly difficult to get to work (needs the right angle) but I almost never have to use it because the TV controls it. Great sound bar, 100% recommend. December 2019 update: still working great. Original 2018: I got this speaker a couple weeks ago and it's been working great so far (November 2018). I plugged in both the HDMI ARC cable and the optical cable, per the instructions and it started working after I turned the TV off and then on. It turns on instantly along with my TV when I press the Apple TV remote. The volume changes through my TV remote (or Apple Remote). There are three different buttons for levels of voice clarity, but I haven't had to use it at all which is a huge plus. The bluetooth syncing works very easily, again a problem that many other sound bars have. There is no Alexa integration, but that probably helps keep the price low (no mics or networking hardware, a plus in my opinion). The wireless subwoofer has totally satisfactory sound for a semi-large living room, and was completely plug-and-play. I just plugged it in behind the couch and it works perfectly, no syncing needed. This model also doesn't have any problems that affected the last generation (namely turning off after 30 seconds if no audio input), which is great. The price is fair, and it mounted to the bottom of my TV easily. I was not able to figure out what the two "spacers" are that were included in the package. The instructions didn't seem to say what they are.

## Features

- A PREMIUM ULTRA-SLIM SOUNDBAR WITH WIRELESS SUBWOOFER INCLUDED – 5 powerful full-range drivers deliver rich audio with deep bass. Polk’s exclusive VoiceAdjust technology & Dolby Digital Decoding maximizes audio clarity & reduces voice delays
- EXCELLENT SOUND AND VALUE on par with any mid- to high-range sound bars for TV with subwoofer. At just over 2" tall it fits most spaces — easily wall-mount or place in front of your TV. It won’t block your TV’s bottom edge or IR remote sensor
- UPGRADE YOUR HOME THEATER SOUND SYSTEM – Watch your favorite shows on 4K HD Smart TV with exceptional picture quality and crystal clear sound using numerous connection possibilities, plug any audio source via HDMI, ARC optical input, and AUX
- WIRELESSLY STREAM MUSIC from your favorite streaming apps like Pandora, Spotify, TuneIn, and others directly from your smartphone, tablet or other compatible device to this wireless sound bar for smart tv through the built-in Bluetooth technology
- SET UP YOUR SOUND BAR IN MINUTES — With the included soundbar for tv with subwoofer, HDMI and optical cables, quickly connect your TV to the sound bar then get set up and listening in minutes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07H1B3PY9 |
| Additional Features | VoiceAdjust |
| Age Range Description | Adult |
| Antenna Location | For Surround Sound Systems, For Smartphones or Tablets, For Televisions |
| Audio Driver Size | 5.25 inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #3,133 in Electronics ( See Top 100 in Electronics ) #16 in Home Audio Sound Bars |
| Bluetooth Range | 10 meters |
| Brand | Polk Audio |
| Built-In Media | 5' (1.5m) HDMI cable, 5' (1.5m) Optical cable, Literature, Remote, Two power cords and sound bar, power supply |
| Color | Black |
| Compatible Devices | Smartphone, Tablet, Television |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | wired, wireless |
| Control Method | Remote |
| Controller Type | Corded Electric |
| Customer Reviews | 4.4 out of 5 stars 21,913 Reviews |
| Enclosure Material | Plastic |
| Frequency Response | 20 KHz |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 3.31"D x 35.43"W x 2.15"H |
| Item Type Name | Polk Audio SIGNA S2 Polk TV Sound Bar and Wireless Subwoofer Speaker with HDMI and Bluetooth Black |
| Item Weight | 3.9 pounds |
| Manufacturer | Polk Audio |
| Maximum Range | 7 meters |
| Model Name | SIGNA S2 |
| Model Number | AM6214-A |
| Mounting Type | Bar Mount,Tv Sound Bar |
| Number of Audio Channels | 5.1 |
| Number of Items | 1 |
| Power Source | AC |
| Speaker Maximum Output Power | 25 watts |
| Speaker Size | 2 inches |
| Speaker Type | Soundbar, Subwoofer |
| Specific Uses For Product | Home Theatre |
| Subwoofer Connectivity Technology | Wireless |
| Subwoofer Diameter | 2 inches |
| Tweeter Diameter | 2.54 centimeters |
| Unit Count | 1 Count |
| Warranty Description | Electronics: 1 year / Drivers: 2 year |
| 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:** 25 Watts

## Images

![Signa S2 Ultra-Slim Sound Bar for Smart TV with Subwoofer - Image 1](https://m.media-amazon.com/images/I/71cDO8bNXPL.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

### ⭐⭐⭐⭐⭐ Easy to setup, easy to use, great sound
*by R***B on December 16, 2022*

This relatively low cost sound bar has remarkably good sound for such a low profile. Setup was easy. It came with HDMI and optical cables for attachment to the TV. I attached the HDMI to the ARC (Audio Return Channel) HDMI connection of my flat panel and just turned it on. The TV recognized the sound bar by turning off its internal speakers and playing sound through the sound bar. Additionally, it shows the audio level bar on-screen whenever the TV or sound bar remotes are used to adjust the audio level. I plugged in the wireless subwoofer and it connected automatically to the sound bar, but there is also a manual process if necessary. It is also easy to use. There are various adjustments that can be made with the sound bar remote, but once these were made we only use the TV remote. The sound bar appears to go into sleep mode when the TV is off and comes back on when the TV is turned on. It is compatible with Dolby 2.1 content, but it cannot be upgraded with additional speakers. There are five inconspicuous buttons on the top of the sound bar: on/off, source selection, Bluetooth on/off, volume down, and volume up. Bluetooth is used for playing sound from other sources like a smart phone. These buttons also appear on the sound bar remote along with other buttons for mode selections. There are three sound buttons: Movie, Night, and Music. We use the Movie mode mostly as it “expands” the soft and loud sounds as if in a movie theater but with 2.1 speakers. The Night mode “compresses” the sound levels, making “quiets” a little louder and “louds” a little lower. This mode is good for late night listening with the sound turned down so that others aren’t disturbed by loud explosions and you can still hear the “quiet” portions. The final sound mode, Music, is for listening to music with the frequencies set at a more equal distribution. There are also three buttons for Voice Adjustment. These adjust the voice frequencies to make voices easier to understand. At the highest level, number 3, we can tell that voices are much clearer but they sound somewhat unnatural. Consequently, we normally use level 1 and occasionally level 2 when necessary. There are a series of lights on the front screen to indicate operation and when modes are selected. The main light comes on when the sound bar is in operation and goes off when it goes into sleep mode. This is a soft light and I do not notice it when watching the TV. The color changes whenever the Dolby 2.1 signal is received and being used. Other lights on the front will turn on momentarily whenever a new mode or source is selected to indicate that the signal has been received and the change made. There is also a light that comes on when Bluetooth is turned on. This goes off when Bluetooth is turned off or when Bluetooth goes into sleep mode if it is not in use for more than 15 minutes. Note, the auto sleep mode is not the default and this option has to be manually selected to be in use. This sound bar produces much better sound than the TV speakers and requires little attention once the adjustments are set; we mostly use the TV remote. My only criticism regards adjusting the subwoofer levels. The subwoofer has bass minus and plus adjustment buttons on the remote but, unlike the other mode adjustments, there is no visual indication that anything is happening when this is used. There isn’t even an indicator that it is wirelessly linked except for the lights used when manually connecting it. The bass can be adjusted up to the point that deep voices and drums rattle items on the shelves in the room. When adjusted down to reduce such rattles we have no way of knowing if we are at a mid or lowest level. The bass can be adjusted to what is being listened to, but it would be nice to know the actual setting so that a “standardized” level could be selected for particular circumstances.

### ⭐⭐⭐⭐⭐ Good sound, clear dialog, turns on/off automatically
*by C***N on December 9, 2018*

June 2020: still functioning perfectly. I think once or twice I’ve had to unplug the subwoofer to get it work again. Very rare occurrence. The remote can be slightly difficult to get to work (needs the right angle) but I almost never have to use it because the TV controls it. Great sound bar, 100% recommend. December 2019 update: still working great. Original 2018: I got this speaker a couple weeks ago and it's been working great so far (November 2018). I plugged in both the HDMI ARC cable and the optical cable, per the instructions and it started working after I turned the TV off and then on. It turns on instantly along with my TV when I press the Apple TV remote. The volume changes through my TV remote (or Apple Remote). There are three different buttons for levels of voice clarity, but I haven't had to use it at all which is a huge plus. The bluetooth syncing works very easily, again a problem that many other sound bars have. There is no Alexa integration, but that probably helps keep the price low (no mics or networking hardware, a plus in my opinion). The wireless subwoofer has totally satisfactory sound for a semi-large living room, and was completely plug-and-play. I just plugged it in behind the couch and it works perfectly, no syncing needed. This model also doesn't have any problems that affected the last generation (namely turning off after 30 seconds if no audio input), which is great. The price is fair, and it mounted to the bottom of my TV easily. I was not able to figure out what the two "spacers" are that were included in the package. The instructions didn't seem to say what they are.

### ⭐⭐⭐⭐ Pretty Good Sound Quality for the Price
*by B***P on May 26, 2026*

This speaker system is very reliable and works well with my Smart TV and my phones. I have been using it for the past six years with no issues. It is portable and durable, working just as well as it did when I first bought it. I have moved it to two different apartments and it easily transports from one apartment to the next. It is pretty discreet, blending well with my Smart TV console. My main critiques are that the sound system doesn't always interpret the sound as best as it could, especially the lower registers of the bass guitar and the bass drum. It is good at highlighting the treble sound but I find that I have to increase the volume significantly to appreciate the richness of the bass sounds. I also don't think that switching between the 3 different voice/sound controls on the remote are very helpful, or pressing the musical note button. Moreover, I wish the cables were longer, especially the cord for the subwoofer. For this reason, I did not give the speaker system full stars. Overall, it is a great product for the price though as I paid just under $200 for the set. I have hosted multiple house gatherings and it never disappointed the crowd. I would recommend it to my friends and those who want a good sound system that won't break the bank.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-04*