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Customer Reviews

Polk Audio Signa S4

Polk Audio Signa S4 Powered 3.1.2-channel sound bar and wireless subwoofer system with Bluetooth® and Dolby Atmos®

MFR # 300443-01-00-101

4.5 out of 5 stars
63 reviews
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Quality soundbar

Hector from West Hempstead, NY on 5/28/2025

Verified customer (What's this?)
Verified employee review (What's this?)

The Polk soundbar has great sound for my living room. I use it for both the tv and also to play music via the Bluetooth connection. I'm also impressed by the HDMI arc connection. Sound options available for the source playing is also a plus. It's a quality system for the price.

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Crutchfield response on

0 of 0 found this helpful

Bad driver.

Reinaldo from Mayaguez, PR on 5/28/2025

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Verified employee review (What's this?)

The overall sound when power up was distorted at low frequency. Found one of the front speaker defective ( picture). Remove the driver and now sound is good. Maybe was a situation during shipping or manufacture problem. The wireless subwoofer work perfect.

Pros: Very good sound overall.

Cons: Defective drive speaker, have no high frec. control.

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0 of 1 found this helpful

They look nice!

Greg from Etowah, NC on 3/6/2025

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Verified employee review (What's this?)

When they work they are good, but sometimes they disconnect. Sometimes they reconnect themselves, sometimes they don't. Then I have to reboot (ac plug) then they work again until they stop. My previous sound bar (different brand) purchased as a refurb from Crutchfield did the same until it stopped altogether so I tossed it. Most likely my tv resides in an evil vortex which causes the problem!

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0 of 1 found this helpful

Polk Audio Signa S4

Daniel from Cedaredge, CO on 2/16/2025

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The power out of such a small system is amazing.

Pros: Changed my tv watching experience totally.

Cons:

Crutchfield response on

1 of 1 found this helpful

Polk Audio Signa S4

Tommy from Trinity, TX on 1/20/2025

Verified customer (What's this?)
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It's "ok". Certainly not a Bose quality, but ok for the price point.

Pros: Easy to set up and use.

Cons: Not really a full sound.

Crutchfield response on

0 of 6 found this helpful

Polk Audio Signa S4

Dennis Raymond from ROCK HILL, SC on 1/5/2025

Verified customer (What's this?)
Verified employee review (What's this?)

I got this setup for the price and good reviews. However, I was very disappointed. I currently have an inexpensive big box store soundbar and subwoofer that I wanted to upgrade. This Polk setup was weak and only one step above TV sound. The soundbar frequently lost connection with the subwoofer and was all together just.weak.

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Crutchfield response on 1/13/2025
Dennis Raymond contacted our Customer Support team and set up a return. Purchases from Crutchfield can be returned or exchanged within 60 days.

1 of 3 found this helpful

Polk Audio Signa S4

Fran from Orange Park, FL on 1/3/2025

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My TV sound is exceptional. I really am enjoying the programs now.

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1 of 2 found this helpful

Easy as pie.

John from Clinton, NY on 12/24/2024

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Can't tell you how much I love my Polk Signa 4. It certainly enhances our audio on our tv. No buyers remorse here. I couldn't believe the cars happier and it was a breeze setting up.

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2 of 3 found this helpful

Polk Sound Bar

Jeffrey from Attleboro, MA on 12/6/2024

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Wonderful addition to our TV viewing. Great functionality, easy install. Great sound

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Cons: Non

Crutchfield response on

4 of 4 found this helpful

Polk Audio Signa S4

Donald from Sharon Hill, PA on 9/24/2024

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Very fast service ! Works great

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Crutchfield response on

2 of 5 found this helpful

Polk Audio Signa S4

James from Picayune, MS on 9/3/2024

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Very pleased with the sound for the price.

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Crutchfield response on

1 of 4 found this helpful

Polk Audio Signa S4

Howard from Gainesville, FL on 7/8/2024

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Works well. Does not display volume level on TV screen which is disappointing. I wear hearing aides and like a volume indicator displayed so I have a baseline. But overall, it's a good system.

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Crutchfield response on

6 of 6 found this helpful

Great sound from an easy to set-up system

Joseph from Pass Christian, MS on 6/9/2024

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Wasn't sure exactly what I wanted and wanted to stay within a reasonable budget. Sonny at Crutchfield walked me through several options and answered my questions to help vector me to this system. The Signa S4 doesn't disappoint. The S4 had a wide frequency range for my ears and noticeably enhanced the sound from my TV. Highly recommended for great sound and great value.

Pros: Easy to set-up, great sound. Like the long soundbar size and compact subwoofer. Seems very well constructed.

Cons: Nothing noticeable.

Crutchfield response on

6 of 6 found this helpful

Excellent value

Peter from Waitsfield, VT on 5/4/2024

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Verified employee review (What's this?)

Excellent sound bar at the price point for TV and movies. I especially appreciate the clear dialogue and dialogue enhancement options. All remotes should be like this one; simple, intuitive and highly functional, it controls dialogue enhancement levels, subwoofer level, listening mode (movie, night, music). The wireless sub is attractive and connects easily. Highly recommended for a budget/mid level sounder for clear dialogue and ease of use. My one gripe is with the sound quality for music via bluetooth - a big disappointment - sounds muffled, distant, and lacking any dynamics, even in music mode. If you aren't going to use the bar for music, or just using for background music, this a great value.

Pros: Excellent clear dialogue reproduction, intuitive and functional remote, attractive design, including the wireless sub. A great package at this price point.

Cons: Bluetooth music reproduction is dull and lifeless

Crutchfield response on

6 of 7 found this helpful

$ 299 well spent

Cliff from St Thomas, VI on 4/15/2024

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It's a beautiful thing when your New product operates just as advertised and more. It makes my little room seem bigger than it is. And it's clean and punchy when needed. I'm really enjoying my S4 And I would suggest it to anyone that has a tight budget like mine. Outstanding ????. Polk

Pros: Extremely easy to set up. Sounds are very clear and distinct. and Great flexibility in controlling what do you want to hear?

Cons: Wish High frequencies were more defined. But with everything the way it is, I could get used to this

Crutchfield response on

2 of 3 found this helpful

Great with a caution

Tahsin from Holliston, MA on 4/9/2024

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Verified employee review (What's this?)

Ok, the sound is exceptional... EXCEPT that you really can't put the sub just anywhere. We've experienced exceptional reverb or bass tonal delay when the sub is placed behind something. Placing the sub as close as possible to the soundbar seems to solve this. It's more evident with deep male voices who may have their tonal range split across the soundbar speakers and subwoofer. Otherwise the Atmos is great and it really does have room-filling sound.

Pros: Room filling sound Atmos works great

Cons: Subwoofer needs to be placed near the soundbar

Crutchfield response on

9 of 10 found this helpful

Polk Audio Signa S4

Fred from Hamilton Square, NJ on 4/5/2024

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Have only been using the Signa S4 a little over a week, but very satisfied so far. Great sound at a reasonable price, and once again Crutchfield delivered on time and a well packaged product! Will definitely continue to purchase from Crutchfield!

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Crutchfield response on

1 of 1 found this helpful

Polk Audio Signa S4

Crutchfield customer from Waterford, ME on 3/20/2024

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This sound bar works great. My wife and I have a hard time hearing the dialog when watching tv. We are both in our 70s. This sound bar makes it so much easer to listen to the dialog. The only thing that I didn't see in the instructions was how to get the sound bar tower on a Vizio. You have to go to settings and select audio, then click on AUTO speakers. After you do that it will connect to your tv and you can make adjustments. Great system.

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Crutchfield response on

5 of 5 found this helpful

Excellent Soundbar- Superb Value

Greggles from KY on 2/28/2024

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Verified employee review (What's this?)

This is a very nice soundbar. We bought a 65" tv that has poor sound so we needed a soundbar just to make dialogue audible. The Signa S4 reproduces dialogue beautifully. Our room is 30' X 45' and the S4 fills it with sound. The Night Mode works great, keeping dialogue clear and taming the big sound of the soundbar and sub. Setup was simple, just hooking up three cables, plugging in the soundbar and subwoofer, and putting batteries in the remote. The most difficult part of unboxing and setup was unwrapping the batteries for the remote; I kid you not. The soundbar Bluetooth-paired with my iPad easily and sounds good playing music. In my opinion this soundbar is an excellent value and I bought it on Weekly Special which makes it a ridiculous value. Watch those Weekly Specials folks.

Pros: Easy setup Excellent dialogue reproduction BIG sound Simple operation Small size Effective Night Mode

Cons: Only three settings for Voice Adjust rather than a separate volume setting (Still effective, though) Remote is a bit flimsy but adequate

Crutchfield response on

5 of 5 found this helpful

Buy This!

Thomas from Erie, PA on 2/20/2024

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I am using this in my back "music room" to listen to songs recorded using Dolby Atmos, for the most part. The sound is amazing so far, incredibly easy to connect the system. For the price, I am extremely happy.

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Crutchfield response on

1 of 1 found this helpful

Polk Audio Signa S4

Randy from Pembroke, VA on 2/20/2024

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Real easy setup. Great sound!

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1 of 1 found this helpful

Polk Audio Signa S4

Brad from Orange, VA on 1/20/2024

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works and sounds great.

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Crutchfield response on

1 of 1 found this helpful

Polk Audio Signa S4

Anthony from Jax Bch, FL on 12/24/2023

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Excellent audio for movies as well as music

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Crutchfield response on

2 of 2 found this helpful

Excellent Choice Sound Bar

Leonard from Oxford, FL on 12/23/2023

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Verified employee review (What's this?)

Simplest of installation, great sound with greatly enhanced voice quality. A great buy for an advanced system. Can't forget Crutchfield's excellent on-staff experts recommendation.

Pros: Simple and quick installation. Definitely improved sound over std. tv speakers with greatly improved voice clarity.

Cons: None that I could find.

Crutchfield response on

3 of 4 found this helpful

Polk Audio Signa S4

Jeffrey from Fairfield, PA on 12/15/2023

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Great sound very straightforward to hook up

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1 of 1 found this helpful

Polk Audio Signa S4

Jordan from Federal Way, WA on 12/8/2023

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Exceptionally happy with this purchase, especially for the price. Simple setup, intuitive working, great sound. This is our first soundbar - I had no idea how much of a difference it would make!

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4 of 4 found this helpful

Nice system

Vicki from Tucson, AZ on 12/6/2023

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Verified employee review (What's this?)

Replaced an old Polk SoundBAR (original!) and PSW10 sub. Very happy - great sound and we really like the dialog enhancement. The old soundbar/sub required a pre-amp, it's convenient that this doesn't although the new sub doesn't have quite the power of the PSW10.

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Crutchfield response on

3 of 3 found this helpful

Polk Audio Signa S4

Timothy from Asbury, NJ on 11/24/2023

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Overall a nice blended sound wish it did have a little bit more on the low end bass.

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Crutchfield response on

1 of 1 found this helpful

Signa S4 Delivers - 5 STARS!

Laurie from Metairie, LA on 10/24/2023

Verified customer (What's this?)
Verified employee review (What's this?)

The Polk Sign S4 soundbar is the clear winner in overall design, sound, and ease of setup. The Voice Assist feature is amazingly accurate at defining center channel spoken dialogue. The Bluetooth lets anyone effortless stream music from a phone to the soundbar. The Dolby Atmos is absolutely mind-blowing, and this bar can fill an entire room with incredible sound. Polk has always been my choice for outstanding audio designed by experts in the field of sound technology. Signa S4 is a clear 5-STAR winner!

Pros: Incredible sound, value, and overall design!

Cons: None to mention.

Crutchfield response on
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5 of 5 found this helpful

Polk Audio Signa S4

Scott from Silt, CO on 9/11/2023

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Verified employee review (What's this?)

Very pleased with the Polk Audio Signa S4. Huge overall improvement over the TV speakers and much clearer dialog. Great value for the price.

Pros: Incredibly easy to set up.

Cons: None

Crutchfield response on

2 of 2 found this helpful

Polk Audio Signa S4

Matt from Downers Grove, IL on 8/30/2023

Verified customer (What's this?)
Verified employee review (What's this?)

Similar to other reviews. When I volume up/down with my Xfinity remote, it skips a level or two. Using the remote with the S4 works better. Setup was easy using HDMI (eARC). Sounds really good.

Pros: Easy setup Sounds good Can plug in turntable directly to 3.5 input with the correct cord

Cons: Volume control via Xfinity remote not as accurate as I would like

Crutchfield response on

2 of 2 found this helpful

Polk Audio Signa S4

Gerald from Camp Hill, PA on 8/18/2023

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Verified employee review (What's this?)

A great system for the prize. My wife got annoyed by our old sound bar at not being able to change levels. This dound bar has mitigated that problem!

Pros: Ease of hookup Improved sound quaily

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Crutchfield response on

1 of 1 found this helpful

Polk Audio Signa S4

Nelda from Freeport, TX on 8/4/2023

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Very easy to install. Great sound.

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2 of 2 found this helpful

Polk Audio Signa S4

Philip from Sun City, AZ on 5/22/2023

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Significant improvement over using RCA connection through a Bose radio. Good value for the money.

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Crutchfield response on

3 of 3 found this helpful

Polk Audio Signa S4

John from Venice, FL on 3/27/2023

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Sound quality is better than my older Klipsch and much easier to set up (plug & play)

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2 of 2 found this helpful

Polk Audio Signa S4

Tanya from Copperas Cove, TX on 2/27/2023

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Got it for my husband . He loves it. He is currently using it in his Man Cave.

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2 of 2 found this helpful

Polk Audiso Signa S4 with voice enhancement

Joe from Maryville, TN on 2/19/2023

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Allows me to better hear voices without turning up the volume.

Pros: does everthing well

Cons: needs more than 3 levels of voice enhancement.

Crutchfield response on

5 of 5 found this helpful

Polk Audio Signa S4

Joanna from Arlington, VA on 2/13/2023

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The sound has been great. Our TV is an older Toshiba and it only has 3 HDMI slots which are used for other device connections, so we are using the provided optical cable. I think that may be the reason we have echoing occurring with the TV's speakers and the sound bar. I haven't had a chance to play with this other than muting the TV speakers so that we only have the sound bar in use.

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1 of 1 found this helpful

Great sound at a great price

Christopher from Fond Du Lac, WI on 2/2/2023

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Verified employee review (What's this?)

This is a great sound bar. The dialog is clear and the bass is enough to be effective. The wireless sub is great, you can put it anywhere in the room. I have it in a small room and it sounds great. Also very easy to set up. The settings are few and simple, but they work well.

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Crutchfield response on

3 of 3 found this helpful

Polk Audio Signa S4

John from MI on 1/18/2023

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Verified employee review (What's this?)

The sound bar and sub system really stepped up our television audio. Television dialog is much clearer and audible at a lower volume level. Movie audio greatly improved. Really like the separate bass control on remote. On/off and volume work through existing cable remote. Installation was very simple. Very pleased with this system.

Pros: Easy installation, sound quality, compatibility with existing cable remote.

Cons: None

Crutchfield response on

3 of 3 found this helpful

Polk Audio Signa S4

John from Des Plaines, IL on 1/9/2023

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Pros: Simple to set up. Easy to interface with existing equipment. Great sound...Deep ,rich, full at low volume levels. A 3.5mm audio in jack makes interfacing with my gaming PC a breeze. Cons: No availability to add rear surround speakers.

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Crutchfield response on

1 of 1 found this helpful

Polk Audio Signa S4

Alan from Kalamazoo, MI on 1/9/2023

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This system is wonderful. The various sound settings are great.

Pros: A value for the price.

Cons: None

Crutchfield response on

2 of 2 found this helpful

Polk, Signa S4

Jeffrey from Roswell, NM on 1/2/2023

Verified customer (What's this?)
Verified employee review (What's this?)

Very nice sounding sound bar, sounds better the more you use it. Dolby Atmos sounds nice but could be more pronounced, but overall worth every penny. Very simple to setup out of the box. But for the price, you can't beat it IMO.

Pros: Easy and great sound. You could spend more and not get this nice of sound

Cons: No Bluetooth, not expandable, subwoofer bass is there but could use a boost, but glad it has a one in this price range.

Crutchfield response on

1 of 1 found this helpful

Polk Audio Signa S4

Isaac from Great Mills, MD on 12/28/2022

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Great value for the price. Simple to setup and perfect for a 15 x14 room.

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Crutchfield response on

2 of 2 found this helpful

Rick

Richard from Edgewater, MD on 12/18/2022

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Verified employee review (What's this?)

Connections were very easy. Sound is crisp and clear. Good value. Delivers enough base without overpowering the remaining audio.

Pros: Good value. Will create satisfaction for the majority of people looking to increase their enjoyment of the television.

Cons: Not expandable to create a 5.1 system

Crutchfield response on

4 of 4 found this helpful

Polk Audio Signa S4

Terry from Austin, MN on 12/9/2022

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Sounds great!

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Crutchfield response on

2 of 2 found this helpful

No good sound quality

Crutchfield customer from Sacramento, CA on 10/30/2022

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For the price point this sound bar does not meet expectations. They quality of sound is not crisp compared to the Sony A80J. Technical issue I would turn off my TV but the audio wouldn't turn on. I would have to go to audio settings change to TV speakers then switch back to external speakers. Contacted Polk never got a response back. I'm returning this back. If they would like to help me let's try again by delivering a new soundbar with extra speakers to put around the house. I also contacted the other retailer no response to exchange hdmi 8K cable to see if that was the issue. No real help from, but only Crutchfield who are outstanding and attentive.

Pros: Solid build is at the low end speakers not a mid sound bar with Sonos and Bose.

Cons: Lacks sound quality. Can't add extra speakers.

Crutchfield response on 11/1/2022
This customer contacted our Customer Support team and set up a return. Purchases from Crutchfield can be returned or exchanged within 60 days.

1 of 3 found this helpful

Signa S4 - Big Step-

John from Apex, NC on 10/20/2022

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Verified employee review (What's this?)

Got the S4 to improve the sound on my new 50" Samsung 8000 Series TV. Big improvement over the Samsung stock speakers! The Quick Start manual included with the S4 could have used a few more details. Voice sync on initial setup was poor, but that turned out to be a problem with the TV "Expert Settings". Once I adjusted the "Audio Output Delay" setting, everything was fine. I recommend using HDMI-ARC connection if you can. Don't expect this to sound as good as the IMAX Theater speakers! Signa S4 is a $300 soundbar, not a $1000+ unit.

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Crutchfield response on

5 of 6 found this helpful

Polk Audio Signa S4

Donald from WEST CHESTER, OH on 10/2/2022

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Nice sound, compact footprint, good value

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Crutchfield response on

1 of 2 found this helpful

Polk Audio Signa S4

Patrick from Plainview, NY on 9/11/2022

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The voice enhancer feature make this stand out among the competition, especially if you have some hearing loss and conversation gets lost with the rest of the background noise. I should have bought this long ago. No more asking my wife "what'd they say?"

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Crutchfield response on

5 of 5 found this helpful

Polk Audio Signa S4

Edward from Sebring, FL on 8/25/2022

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Great sounding and easy set up, but I have a slight delay between picture and sound now.

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Crutchfield response on

3 of 5 found this helpful

Polk Audio Signa S4

Tom from Mars, PA on 8/14/2022

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very good sound, ease of operation

Pros: remote easy to use

Cons: thought subwoofer would be bigger

Crutchfield response on

1 of 3 found this helpful

Great Sound Bar

Mark from Smithville, TN on 8/14/2022

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Sounds great. Works better than expected. Very easy setup. Would highly recommend.

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Crutchfield response on

2 of 4 found this helpful

Very Good Value

Audio Fiend from Lewes, DE on 8/12/2022

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What a pleasant surprise! I hadn't been impressed with sounders until recently, and this one is quite a value. Beautiful, balanced sound for a very reasonable price. I like quality sound and my jaw dropped upon first listen.

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Crutchfield response on

2 of 2 found this helpful

Polk Audio Signa S4

Steven from Keaau, HI on 8/8/2022

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Easy setup and the voice feature helps when watching shows with the annoying background music

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Crutchfield response on

3 of 5 found this helpful

Polk Audio Signa S4

Robert from Baltimore, MD on 8/5/2022

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A giant upgrade from my old cheap sound bar. Great!

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Crutchfield response on

1 of 2 found this helpful

Polk Audio Signa S4

Jerry Edward from Fredericksburg, VA on 7/28/2022

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It was a gift to a friend, who really likes it so far.

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Crutchfield response on

1 of 2 found this helpful

Great system

Brad from Scarborough, ME on 7/28/2022

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Awesome soundstage and very clear voices!

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2 of 3 found this helpful

My 86 year old mom loves it!

Jim from Redondo Beach, CA on 7/8/2022

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I purchased this soundbar for my mom. After a very easy set up and watching a few shows, she gave it 2 thumbs up. The voice + button option is really nice. Works well. Music button option makes music sound decent for a soundbar output. The only con for me (And it's a small one.) is the size of the subwoofer.

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5 of 5 found this helpful

Polk Audio Signa S4

Seth from Salem, OR on 6/2/2022

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Works great! Love Dolby atmos.

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2 of 3 found this helpful

Polk Audio Signa S4

Ronald from Danville, CA on 5/23/2022

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This sound bar provides quite a nice surround effect, perfect for our bedroom. Very easy to set up and use.

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Crutchfield response on

3 of 4 found this helpful

Polk Audio Signa S4

Cathy from Middletown, DE on 3/1/2022

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Sounds great Had to dig for info on how to get soundboard to work with TV remote.

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Crutchfield response on

4 of 7 found this helpful

Solid purchase

Guest from La Nouvelle Orleans on 2/3/2022

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Verified employee review (What's this?)

PROS: easy connectivity, Subwoofer is wireless so can be moved around to find the sweet spot., audio quality is good when up mixing audio, excels with 5.1, atmos sources (if connecting from game console or STB, make sure sound is set to 'bitstream out', and tv settings need to be set to dolby digital (via ARC hdmi port) for 5.1 and dolby digital+ for atmos. If you have an eARC port on your tv, even better as its loss less.)., Height channels really shine despite having vaulted ceilings and not 7'-12' flat ceilings. To judge audio quality perfectly, you need an ideal room (ceiling, material of ceiling, wall, size, distance from bouncing sounds, etc.) so it's hard to pinpoint exactly how good this soundbar can be. CONS: comes with limited instructions, lack of features. Bottom line: if you're looking for a solid soundbar for good surround sound, and dont care about bells and whistles, you cant go wrong. I give it a 4/5.

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24 of 26 found this helpful

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