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

4.5 out of 5 stars 7,729 ratings

Brand VIZIO
Speaker Type Subwoofer
Connectivity Technology Bluetooth
Color Black
Item Dimensions LxWxH 38 x 3 x 3 inches

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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Customer Rating 4.5 out of 5 stars (7729) 4.6 out of 5 stars (372) 4.5 out of 5 stars (11918) 4.5 out of 5 stars (4175) 4.5 out of 5 stars (2886) 4.5 out of 5 stars (6858)
Price From $139.99 $169.99 $149.00 $198.00 $199.99 $149.99
Shipping FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details
Sold By Available from these sellers Amazon.com Amazon.com Amazon.com Electronics Expo PHEANOODirect
Color Black Black Black Black Black
Connectivity Technology Bluetooth Bluetooth HDMI, Wireless Bluetooth, HDMI Bluetooth, HDMI, 1 Analog, 1 Optical, USB Bluetooth, USB, HDMI, RCA, Auxillary
Item Dimensions 38 x 3 x 3 inches 36 x 3.19 x 2.17 inches 3.22 x 35.43 x 2.15 inches 41.02 x 20.35 x 9.8 inches 38.19 x 27.56 x 23.62 inches
Item Weight 5.80 lbs 15.87 lbs 3.90 lbs 22.50 lbs 2.60 lbs
Speaker Type Subwoofer Soundbar Soundbar Soundbar Soundbar Subwoofer

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.

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Technical Details

Additional Information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

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Not liable

Visible screen diagonal

22" / 56 cm


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Customer reviews

4.5 out of 5 stars
4.5 out of 5
7,729 global ratings
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Top reviews from the United States

Reviewed in the United States on February 28, 2018
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307 people found this helpful
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Reviewed in the United States on May 8, 2018
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3.0 out of 5 stars Snap, Crackle, Pop...okay just crackle
By Chris on May 8, 2018
So I'll start by saying the sound on these is great! We actually ordered two, however mine in particular had a rough transportation and the box arrived pretty mangled. I checked the contents and things seemed okay except for a small dent on the right side (how hard did it hit I wondered). Within a few days I started to notice a crackle from the right side of the sound bar. I had it connected directly to a PS4 Pro then the TV via optical cable. I figured it was related to the transportation issue, so swapped it out for another.

Several days later the other unit in the house ALSO started having a crackle coming from the right side of the sound bar. Coincidence? I checked some reviews and was seeing the same thing. Needless to say the replacement also started having this issue within days so I had the pleasure of showing up to the UPS store with 3 of these to send back. I'm going to replace it with the D6 in the hopes that whatever manufacturing problem that was causing this has since been addressed.
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159 people found this helpful
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Reviewed in the United States on November 27, 2017
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170 people found this helpful
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Reviewed in the United States on August 8, 2018
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3.0 out of 5 stars I know its tempting, but look elsewhere...
By William Dakota Clewis on August 8, 2018
I bought this system to pair with my Vizio Chromecast, but first I read 40 reviews (good and bad) before buying. I saw some reviews speaking of terrible shipping handling, sound bars not working at all and some stopped working after a few months to a year of use. There was an overwhelming amount of positive reviews.

However, there was one consistent criticism I've seen. The sound bar has a reputation for crackling from certain frequencies. Subwoofer sounds fine, fairly punchy and accurate. But the sound bar is interesting. When I installed mine it was working just fine, sounded great. But after a few short hours I heard it. The crackling. This thing ever so faintly will crackle randomly. Sometimes turning it off and on works. Sometimes unplugging it and waiting and plugging it back in makes it go away for a while. But it just crackles randomly... I don't understand how Vizio let this through any quality checks.
So should you buy it?
No.
I dont think this product is good enough even at this cheap a price point. People who buy something this cheap most likely arent looking for top notch sound and earth shattering bass. People who buy this just want something better than TV speakers. Something to provide a little more bass and clarity. I can't see this speaker being worth the endless bothersome crackling.

Stay away from this one, I'd spend a little more dough on something with higher quality.
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84 people found this helpful
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Reviewed in the United States on June 30, 2017
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151 people found this helpful
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Reviewed in the United States on January 11, 2018
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103 people found this helpful
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Top reviews from other countries

Jonathan
2.0 out of 5 stars DIED after 1 month
Reviewed in Canada on October 2, 2018
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6 people found this helpful
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Danielle J
3.0 out of 5 stars Stopped working
Reviewed in Canada on April 4, 2021
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Matthew Pires
4.0 out of 5 stars excellent sound, depth
Reviewed in Canada on January 22, 2016
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5 people 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
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One person found this helpful
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Doug MacLean
1.0 out of 5 stars Junk
Reviewed in Canada on April 6, 2021
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