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VIZIO Sound Bar for TV with Wireless Subwoofer, 2.1 Home Audio Sound Bar with Bluetooth 38" SB3821-C6

4.5 4.5 out of 5 stars 8,428 ratings

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Brand VIZIO
Model Name SB3821-C6
Speaker Type Subwoofer
Connectivity Technology HDMI | USB
Special Feature Subwoofer, bass_boost

About this item

  • Enjoy 100 dB of room filling, crystal clear sound with less than 1 percent total harmonic distortion
  • Wireless subwoofer adds rich bass from anywhere in the room
  • Built in Bluetooth lets you lose the wires and listen to your music with a tap of a finger with built in Bluetooth. Sound pressure level - 100 dB. Sound bar frequency - 50 hertz - 19 hertz
  • Premium audio with Dolby digital decoding, plus DTS TruVolume and DTS audio post processing
  • Wireless remote for convenient volume, input and audio controls; Wireless subwoofer range approximately 60 feet – line of sight from sound bar
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Important information

Legal Disclaimer

Not liable

Visible screen diagonal

22" / 56 cm

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VIZIO Sound Bar for TV with Wireless Subwoofer, 2.1 Home Audio Sound Bar with Bluetooth 38" SB3821-C6
VIZIO Sound Bar for TV with Wireless Subwoofer, 2.1 Home Audio Sound Bar with Bluetooth 38" SB3821-C6
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PriceCurrently unavailable.$179.99$546.99-7% $149.00
List:$159.99
-13% $139.99
List:$159.99
-28% $179.99
List:$249.99
Delivery
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Tuesday, Apr 2
Customer Ratings
Bluetooth connectivity
4.3
4.3
4.2
4.4
4.4
4.8
Remote Control
4.2
4.1
4.1
4.3
4.3
4.5
Sound quality
4.2
4.3
3.9
4.3
4.3
4.0
Value for money
4.2
3.5
4.5
4.5
Easy to install
4.4
4.7
4.7
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
speaker size
38 inches
5 inches
4.5 inches
4.5 inches
31 inches
power source
Corded Electric
Corded Electric
AC
Corded Electric
Corded Electric
connectivity tech
HDMI | USB
HDMI
Bluetooth, Wi-Fi
HDMI, Optical
Bluetooth
Bluetooth, HDMI, USB, Optical
speaker type
Subwoofer
Soundbar
Soundbar
Soundbar
Surround
Surround Sound
mounting type
Bar Mount
Bar Mount
Wall Mount
Wall Mount
Sound Bar
Wall Mount
weight
5.8 pounds
18 pounds
33 pounds
14.74 pounds
3.84 pounds
4.32 pounds

From the manufacturer

Premium Audio, Immersive Bass.

Upgrade your TV audio experience with the VIZIO 38” 2.1 Sound Bar System. The wireless subwoofer delivers a room-filling audio experience with deep thumping bass.

2.1 Sound Bar System.

The 2.1 Sound Bar System features powerful speakers paired with a wireless subwoofer, delivering booming sound with crystal-clear audio quality. This combo brings an enticing home theater experience to the comforts of your home.

Expansive Audio.

Upgrade to premium audio with VIZIO’s 38” 2.0 Sound Bar. Best in class audio performance delivers up to 100 dB of room filling, crystal clear sound with less than 1% total harmonic distortion.

Wireless Subwoofer.

Rich, powerful bass transforms movies, music, and TV into an explosive experience. Wireless means your home stays free of clutter while you get great sound.

Seamless Streaming.

Built-in Bluetooth allows you to wirelessly stream audio from your mobile devices. Lose the wires and listen to your music with a tap of a finger from anywhere in the room.

Streamlined Design.

Premium Audio Technology.

Dolby Digital

The audio standard for cinema, broadcast, DVD, Blu-ray, and streaming content, Dolby Digital surround sound provides dramatic spatial dimension to soundtracks and enhanced audio definition for an engaging listening experience.

DTS TruSurround

DTS TruSurround is a virtual surround sound solution that delivers a realistic surround sound environment on sound bars.

DTS TruVolume

DTS TruVolume is a revolutionary solution that provides a consistent and comfortable volume level for a more enjoyable multimedia experience. Simply set the volume once.

What's in the box

  • VIZIO 38” 2.1 Sound Bar System
  • Product guides and documents

    Product information

    Technical Details

    Additional Information

    Warranty & Support

    Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
    Product Warranty: For warranty information about this product, please click here. [PDF ]

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    VIZIO Sound Bar for TV with Wireless Subwoofer, 2.1 Home Audio Sound Bar with Bluetooth 38" SB3821-C6


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    Product Description

    Upgrade your TV audio to a premium experience with the VIZIO 38” 2.1 Sound Bar System and Wireless Subwoofer, a great fit for 42”+ Class TVs. The Sound Bar system packs a punch with a wireless subwoofer and integrated Dolby and DTS audio technologies, delivering a room filling audio experience with deep thumping bass—all in a sophisticated new design. The built in Bluetooth feature allows you to wirelessly stream music from your phone, tablet, or computer. With everything you need for a quick and easy setup, upgrading your TV audio to a home theater experience has never been easier.

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    8,428 global ratings

    Customers say

    Customers like the sound quality, value, and ease of installation of the speakers. For example, they mention that it has a True Volume feature that normalizes audio, and has 5 different audio inputs. Some are satisfied with appearance. That said, opinions are mixed on performance, quality, and connectivity.

    AI-generated from the text of customer reviews

    2,566 customers mention2,048 positive518 negative

    Customers like the sound quality of the speakers. For example, they say the sound is surprisingly full and loud when you crank it. They also appreciate the True Volume feature that normalizes audio so they don't have to adjust the volume. The unit has 5 different audio inputs, and they use the optical to connect to their TV.

    "...The sound is surprisingly full and loud when you crank it, more than enough to blast out an average living room, and having the dedicated subwoofer..." Read more

    "...The Vizio TV remote powered up the Vizio Sound Bar and controls its volume...." Read more

    "...The Subwoofer comes paired and ready to roll- The sound is very impressive for such a small device--as I mentioned, I wouldn't use it for my..." Read more

    "...The sound is crisp and clear and it's so much easier to make out what actors are saying when they tend to mumble...." Read more

    1,009 customers mention880 positive129 negative

    Customers like the value of the speakers. They say it's a good bang for the money, a fantastic sound bar for the price, and a great investment. Customers also appreciate the quality and features included at this price level. Overall, customers are happy with their purchase and recommend it to others.

    "...It is inexpensive, compact, convenient, flexible, and has enough features (the bluetooth worked flawlessly for me) and settings to keep most people..." Read more

    "...Vizio engineers for putting together a great product that is inexpensively priced without an obtrusive appearance...." Read more

    "...It's not just a great sound bar for the money. Instead, this sound bar beats other costing WAY more than this...." Read more

    "...Overall this is a great audio package for the price.Features: 5..." Read more

    901 customers mention811 positive90 negative

    Customers find the installation process of the speakers to be simple. They mention that the instructions are clear, and the product is easy to set up and use. Customers also say that the sound bar is easy mount onto a wall, and that the remote is simple to use.

    "...The instructions were clear enough, and the sub woofer paired with the system without a hitch...." Read more

    "...For those that are wondering, using this is very easy. Once you plug in the powers, then you have a few options for plugging in the audio...." Read more

    "Super easy to connect and get working. It was literally plug-n-play. It works with my LG TV & DISH remote without any programming needed...." Read more

    "...It's easy to set up and you'll love it!" Read more

    158 customers mention142 positive16 negative

    Customers like the appearance of the speakers. For example, they mention it has good looks, a well-designed unit, and a minimal design. That said, some say the picture is great and the sound is not so much.

    "...a wider 'sound stage' than its diminutive size, and it is well matched to the sub woofer. It can fill the room at higher volumes without distortion...." Read more

    "...it doesn't detract from the look by any means--it actually looks very niceCons:-..." Read more

    "...What’s Hot- Price- Minimal Design- Comes with all the wires that you will need to get started- Wireless Sub-woofer-..." Read more

    "...the devices on a floating shelf (Apple TV, BluRay player) which looks pretty nice, but it would be nice to attach those legs to the bar to make it..." Read more

    876 customers mention559 positive317 negative

    Customers are mixed about the performance of the speakers. Some mention that the sound bar and subwoofer performed exactly as expected, while others say that it stopped working. Some customers also mention that they have issues with the remote control and the Energy Star disable setting.

    "...Vocals are now very clear and quite natural sounding to my ear...." Read more

    "...It was literally plug-n-play. It works with my LG TV & DISH remote without any programming needed...." Read more

    "...It actually stopped working last night and I need to trouble shoot when I get home...." Read more

    "...So far, no audio sync issues with any sources or streaming apps...." Read more

    847 customers mention508 positive339 negative

    Customers are mixed about the quality of the speakers. Some mention it's a quality product, with a strong build quality. The remote is also well made, and it'll work well for most users. However, others say that the product has iffy reliability, with crackling on the right half of the speaker and intermittent cut outs.

    "...price (under $150), this system provides great value and more than acceptable quality, and I have no regrets about buying it." Read more

    "...The Bluetooth cracked a few times when I was about 10 feet away, but I'm not sure that was a problem with the unit, but rather the stream or..." Read more

    "...The build quality seems very strong. I have long been a fan of Vizio TVs, it seems they do a good job here too-..." Read more

    "...great reviews from a lot of techies and I can honestly say that it's a great system. It's not just a great sound bar for the money...." Read more

    452 customers mention260 positive192 negative

    Customers are mixed about the connectivity of the speakers. Some mention that the bluetooth pairing with their phone is fantastic, while others say that it takes some time to connect occasionally. They also mention that there is a little delay with response on the controller and that choosing an input source can take several minutes.

    "...The sound is great. The bass is great. Connectivity couldn't be easier!I am using the digital optical cable with my TV...." Read more

    "...Sure, the frequency response is still not perfect. For instance, some low tones really resonate, while some sound a bit flat...." Read more

    "...It has a solid construction, a wireless bluetooth subwoofer and a remote control...." Read more

    "...Sounds great even when not on blast- Easy to Connect to Bluetooth Devices- Supports Optical In- RCA and AUX In- USB-..." Read more

    238 customers mention21 positive217 negative

    Customers are dissatisfied with the power of the speakers. They mention that it turns itself off after not being in use for a while, the speaker will power down by default if there is no audio playing on it, and it simply won't power on. Some customers also report occasional power issues that magically resolve themselves.

    "...Twice since the purchase, the unit would not power up for no apparent reason. Power and signal cords were attached properly...." Read more

    "...- The device automatically turns off when it's not in use for a period of time--although I can see this as power saving, ultimately it's more of an..." Read more

    "...instructions, but if you pause what is on the tv, the sound bar will eventually shut off. Not sure the timeframe yet before it auto shuts off...." Read more

    "...Months 12-36: Occasional power issues that magically resolve themselves after unplugging for hours/days. That’s a little annoying but manageable...." Read more

    VIZIO has been upping its game in the A/V department for years. The question is are they up to par with the heavy hitter of Sony
    5 Stars
    VIZIO has been upping its game in the A/V department for years. The question is are they up to par with the heavy hitter of Sony
    What is itThis is an audio sound bar that is used in conjunction or to replace your current or most likely tinny sounding speakers. Even better it comes with a wireless sub-woofer that will add a thump to your entertainment.Key Features:- Wireless Sub-woofer- Bluetooth Connectivity- Remote- Wall Mountable- Comes with everything you need to set upWhat’s Hot- Price- Minimal Design- Comes with all the wires that you will need to get started- Wireless Sub-woofer- Sounds great even when not on blast- Easy to Connect to Bluetooth Devices- Supports Optical In- RCA and AUX In- USB- Easy SetupWhat’s Not- LED Indicators are confusing at first- Would have benefited from some sort of display- Technically it’s still a 2:1 setup- They way you plug the Inputs in seems weird to meBuild Quality / Design: 4.5This sound bar feels very high quality. Everything has a nice heft to it. I not a fan of the way you have to plug the inputs in though. The connectors face inwards rather than out the back. It feel a bit strange to me.Audio: 4.5The most important part of any audio system is how it sound and Vizio got it right here. This system sound great in most normal sized rooms. In my honest opinion it is a bit mid heavy but that can be adjusted by raising the treble. Given the size of the sub-woofer you wouldn’t expect it to thump but you would be in for a surprise. A well placed sub will add depth to whatever you are currently watching or listening to. Overall this is a great audio package for the price.Features: 5This is a fully loaded sound bar that features a multitude connectivity options, so you can amplify whatever audio you want. It also comes packed with all the cables you will need to get started. It has a True Volume feature that basically normalizes audio so you don’t have to worry about the extra loud commercials that will surely haunt you while you are watching TV.Value: 5All of this for under $150… Yeah this is definitely a no brainier…Around the Web: 4.4Via - Amazon.comThoughtsI just purchased a new Sony LED TV, and everything is great but the built-in speakers are notoriously terrible on all flat screen TV I have used so, an external sound source was a must. I been hearing good things about Vizio sound bars and other home media products for a while now and thought this would be a good chance to test one out. I can easily say it was a great thing I did give it a try. For what you get in this package you would easily spend more than $200 on competitors products. I highly recommend this.Score23.4 / 2594
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    Top reviews from the United States

    Reviewed in the United States on December 8, 2015
    299 people found this helpful
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    Reviewed in the United States on February 25, 2018
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    Top reviews from other countries

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    GARY
    5.0 out of 5 stars It's not new it's a refurb!!
    Reviewed in the United Kingdom on November 8, 2020
    One person found this helpful
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    Zisis Kerkides
    5.0 out of 5 stars Great Spatial Sound
    Reviewed in Germany on February 14, 2020
    One person found this helpful
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    Cliente de Amazon
    4.0 out of 5 stars Barra de sonido potente
    Reviewed in Mexico on March 9, 2017
    One person found this helpful
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    Zou
    5.0 out of 5 stars Super duper sound quality!
    Reviewed in Germany on January 27, 2021
    David Fraser
    5.0 out of 5 stars Great sound bar
    Reviewed in the United Kingdom on October 19, 2020