Name: Polk Audio Signa S4 Dolby Atmos 3.1.2 Sound Bar with Wireless Subwoofer
Brand: Polk Audio
SKU: PKSIGNAS4
Price: 449.00 USD
Availability: BackOrder
Rating: 4.6 (58 reviews)

Polk Audio Signa S4 Dolby Atmos 3.1.2 Sound Bar with Wireless Subwoofer

Polk Audio Signa S4

Polk Audio

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Generally ships in 7-14 days, subject to availability Estimated to Ship: 08/01/2025.

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Polk Audio Soundbars

Polk Audio Signa S4 

Experience immersive sound with the Polk Audio Signa S4 Dolby Atmos soundbar. Wireless subwoofer, HDMI, and Bluetooth connectivity. Shop now for premium audio!

An embodiment of high-quality sound engineering, the Signa S4 Dolby Atmos 3.1.2 Sound Bar with Wireless Subwoofer is a stylish and powerful addition to your home theater or entertainment system. This advanced sound bar system, equipped with Dolby Atmos technology, delivers an immersive, cinematic 3D surround sound experience that brings your favorite movies, music, and TV shows to life. The Signa S4 is more than just a sound bar; it's an innovative audio solution that combines a seven-driver array and a wireless subwoofer to create a lifelike Atmos listening experience. The expansive soundstage and effortless bass enhance every audio detail, while the up-firing speakers support Atmos height channels, allowing you to hear sounds flying overhead for a truly immersive experience. Even non-Atmos content can be enjoyed in a virtual Atmos experience, ensuring you get the most out of every audio moment. Designed in Polk's Acoustic Research and Development center outside Baltimore, MD, the Signa S4 leverages over five decades of American hi-fi loudspeaker engineering. This ensures that you get the perfect home theater sound you've always dreamed of, but at a value that's hard to believe. The Signa S4 also features Polk's patented VoiceAdjust technology and a dedicated center channel, ensuring clear, easy-to-understand dialogue. With Bass Adjust controls, you can manage bass on both the sound bar and subwoofer for maximum impact. One-button presets for movie watching and music listening, along with a Night Mode, allow you to customize your sound experience without disturbing your neighbors or kids during late-night binge-watching sessions. Setting up the Signa S4 is a breeze. Simply connect it to your TV using the included HDMI or optical cable, or aux-in for older TVs. It's compatible with virtually any TV, including the latest 8K Ultra-HD TVs. For added convenience, the Signa S4 is pre-programmed to work with most TV remotes out of the box and quickly pairs with your mobile device via Bluetooth for easy music streaming. Experience the future of home theater sound with the Signa S4 Dolby Atmos 3.1.2 Sound Bar with Wireless Subwoofer. It's not just a sound bar, it's a revolution in audio technology.

I purchased the Signa S4 yesterday and believe me it sounds really great.

Although I have a question, Got little confused while reading the Guide.

Connecting through a HDMI cable is better or optical?

HDMI or optical

Sounds great, easy to connect to my LGTv. Love that you can change it from music to movie and can increase the dialogue volume.

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.

Not the most expensive and great sound

I am super impressed with my first soundbar and couldn't be happier with this Polk model. It was super easy to set up. The Bar required just a power cable and an HDMI (look for the HDMI port on your TV that says (ARC)). 
Amazingly, the woofer only required a power cable. After that, everything connected on its own. Power up your TV and the entire system powers up. No additional setup necessary. 
The sound system automatically powers up when your TV does.

Setup does NOT get easier than this.

The wife loves it good product for the price. I Would love to have a higher quality But. for the price This is very good Product

Dancing wife

I have been having a lot of trouble hearing and understanding talk vocals on my TV for many years. I have often blown my forgiving wife away with loud volumes to be able to maybe, understand what is being said. My new Signa S4 has changed all of that. I was truly amazed at how clearly I can hear and understand what is being said. I am still learning the ins and outs of settings for particular shows but, I can't say thank you enough for making my TV viewing experience a pleasure once again.

I can understand what is said.

I had a Sonos Beam2 and not matter what I'd did I could hear all the voices.  Yea I do have some heating issues, but even my wife who still has good hear would have a difficult time hearing dialogue during movies.  I decided to try the Signa 4 after reading reviews.  I have always been a Polk fan and don't know why I just didn't go to them first.  The Signa doesn't have the fancy app lik Sonos or an equalizer or ability to play music from other apps, but I can actually hear dialogue in movies.  The only reason it doesn't get five stars is the lack of an app likeSonos has.  I guess that's why the Sonos was $200 more when I bought it.  Definitely a good sound bar system for the money.  If you have hearing loss this sis a good choice.

Not the latest in features, but?

I have had my Signa S4 soundbar and subwoofer for two weeks. I absolutely love it. I am looking forward to hooking it up to a Samsung Neo QLED 50 inch. Good investment.

Love my Signa S4

This by far is the best soundbar I've ever owned, I'd been researching soundbars when I seen this ad for the Polk Signa S4,  I have to tell ya, it looked and sounded pretty amazing I wanted a soundbar for my Sony Bravia 75 inch TV, so I ordered it off that ad on Instagram it got here pretty fast, so I started to set it up, hooked it in to the HDMI, and it emediatly paired to TV the sound came on, and it scared me it was loud and it sounded dam good I was so impressed and happy, I highly recommend this soundbar

Best soundbar I've ever owned

I continue to have the an issue with the bar plugged into the HDMI ARC port.  When its on for a bit I lose the ability to raise or lower the volume with my TV remote.  I have checked every setting I can change and nothing seems to work.  If it wasn't for this continued issue it would have been 5 stars.

Signa S4 Black US

Very easy to hook up, sounds great, I would definitely recommend this sound bar

Great sound bar

Bought this over 2 weeks now and I couldn't be happier. The sound is amazing, and that bass is second to none, love how it bounces off the floor. Shall be investing in another one for my other tv.

Awesome!!!!

Awesome sound quality and very easy to set up.   I love the three different sound modes!

What a Great Product!

Excellent system and I can really hear the individuals talking during movies with a emphasis on quality of sound!

Had a rough start

Bluetooth awesome! HDMI issues w/ HDTV! Compatibility?

Check compatibility B4 purchasing

We just set up our new Polk Signa S4 soundbar hooked up to our Samsung TV. The wireless subwoofer is easy to use. The quality of the sound is great!

Polk Signa S4 sounds great!

Honestly I returned my Signa S4 and purchased a 
Magnifi Max AXSR 7.1 with surround sound speakers. 
Both were on sale and decided on the later. Great choice. Fed-Ex also were a day sooner in both deliveries and returning was easy.

Great Choice

Awesome sound quality great value .I would highly recommend as movies sound so much better

Awesome

First of all the build and looks are amazing ! very classy looks and I love it !!! . Though the sounds are amazing, I still miss the over head sound experience , I don't think it's crisp enough to get you that Dolby Atmos experience unless I am doing something wrong. Next thing I'd wish it has a DTS:X support. The sound bar will not support Dolby vision pass through which is another con . So I would recommend buying something else for a bit of extra money !!!!. I have checked the Dolby website for atmos supported sound bars and Polk was not listed so I doubt the credibility.

Average Sound Bar !!!!

The sound of the soundbar is real good. However, the bass leaves a lot to be desired. The bass is clear but there is no depth or rumble. I had to go with the Bose.

Good but need stronger subwoofer

After reading all the complaints about the remote and the auto off I have to say, this was no more than a plug in play for me. No issues at all, just the usual great Polk sound !

Great as usual

Great sound quality! The voice adjust really helps with movies where it's hard to hear the vocals.

Great sound and quality

Just finished setting it up and noticed it lacks those crisp highs I was looking for. Also you cannot adjust treble only bass? the voice adjust is useless! Then again I'm using it with my iPhone and my Apple Music playlist. Maybe it may sound better in Dolby Atmos?  It was very easy to setup and has a nice finish and weight to it. I will try a movie this weekend and hopefully can make me change my 3  ?? to a 5 ??.

Not blown away

One word.. Awesome..it was what I expected from Polk.

Setup effortless. I compared different soundbars in BestBuy and they're all very good at this price. Why I like the Polk: I can cycle through the options to find the best sound for what I'm watching. May not match what it's "meant" for but best for me.  Ex: I use the Music setting to watch/listen to NFL games.  Just like it better.  Also, Base level can be controlled with remote - also a plus.

Sound and Options for a good price

WARNING!! You must have a HDMI ARC port on your tv for this product to work properly. This is not stated anywhere while purchasing this product. Intentional?

WARNING!

I've heard the Polk is for now for about three months. I was very impressed with the sound especially since upgrading from a Bose TV speaker. I love that the subwoofer is connected wirelessly by Bluetooth. This allows me to place the sub in any part of the room and not have to worry about running wires thank God we finally reached that era.   Only negatives would be that the build quality of the subwoofer plastic covering which peels easily and a software glitch which mutes the output when woken by the TV.  I've checked and can't find any software updates for this unit either.

Great sound and price point

You can't beat this sound bar for the price. The highs and lows are crystal clear.  It's so easy to set up.  The sound is amazing and that really fills the room.  Polk makes a fine product!

Good price for a great sound bar.

purchased bose first, sent it back,signa s4 hands down #1.

top rated

Easy set up. Excellent sound and build quality. All in all a great sound bar.

Polk Audio Signa S4 Dolby Atmos 3.1.2 Sound Bar with Wireless Subwoofer

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