Vizio SmartCast 2.1-Channel Sound Bar with Wireless Subwoofer (Manufacturer Refurbished)

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Product Details

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Vizio SmartCast 2.1-Channel Sound Bar with Wireless Subwoofer (Manufacturer Refurbished)

This sound bar and subwoofer add depth to film dialogue and TV theme songs, but that’s just the beginning: they also stream audio directly from your mobile devices over a wireless connection.

Cast From Apps You Already Know and Love

All Vizio SmartCast audio products have Google Cast built in (the same technology behind Chromecast), allowing you to cast your favorite content from your phone to your ​​​​TV, display, or Sound Bars. Access millions of songs, podcasts, and more.​

Detailed Sound, Minimal Clutter

The 2.1-channel setup elevates your TV’s audio to give you an experience that’s closer to that of surround sound. Laterally placed speakers produce wider distribution and more realistic depth, creating a sense that the action is unfolding around you. The subwoofer intensifies the effect by adding rumbly low notes that most TVs’ built-in speakers can’t match. With only two components to install, the 2.1-channel setup strikes a much cleaner look than full-blown home theater systems.

Bluetooth: Stream Wireless Music, Internet Radio, and Podcasts

Bluetooth lets you stream wireless music from an enabled mobile device, leaving you free to mingle with guests, clean the house, or do yoga—all without interrupting the music. Moreover, Bluetooth plays your favorite songs over the system’s speakers, filling the room with richer sound than most smartphones, tablets, or laptops can.

Dolby Digital

Dolby Digital helps you feel the passion in an actor’s voice, the beat of a song, and the gravity of a video game’s final battle. It enhances everything from movies to MP3s by elevating what you’re most likely to hear, such as heated dialogue or an ominous door closing, while suppressing static and other background noise. The result is clear digital sound in everything from home theater systems to wireless headphones.


  • Model number: SB3821-D6
  • 2.1-channel sound system with sound bar and subwoofer
  • Wireless Bluetooth 4.0 connectivity
  • Built-in Google Cast compatible with free Vizio SmartCast app
  • Up to 100dB sound pressure
  • Rumbling bass as deep as 50Hz
  • Auxiliary, RCA, optical, USB, and Ethernet inputs
  • Dolby Digital, DTS Studio Sound, DTS TruSurround, and DTS TruVolume audio processing
  • Wall mountable
  • Product dimensions and weight:
    • Sound bar: 38.2” (W) x 3” (H) x 3” (D); 5.8lb.
    • Subwoofer: 8.38” (W) x 9.16” (H) x 8.38” (D); 7lb.
  • 90-day warranty from DIVVY
  • Condition: manufacturer refurbished

About Vizio

Launching in 2002, when rival companies had been selling TVs for decades, Vizio may be a relative newcomer to the TV market, but it hit the ground running. By 2007, it sold the most LCD TVs in America. Its runaway success is thanks in large part to its bread-and-butter HDTV, the LED-backlit 1080p set that can be found in most living rooms. Yet the company also takes chances on the latest technologies. In 2015, for instance, it launched what is arguably one of the most high-end sets ever produced—the $130,000 Reference Series, a 120” 4K set with support for more than one billion colors and integrated 5.1-channel surround sound. While the hefty price tag will deter most TV shoppers, Vizio will inevitably find a way to pack the cutting-edge technologies into a more consumer-friendly set—the approach to TV-making that brought it success in the first place.

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The Fine Print

Customer Reviews

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Vizio SmartCast 2.1-Channel Sound Bar with Wireless Subwoofer (Manufacturer Refurbished)

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R J. Verified Purchaser
Dec 11th, 2017
I have had the Sound bar on my TV for several months now. It was slightly confusing to connect, but has worked like a champ ever sense. One minor annoyance is that when you turn the TV on, once the picture is live, you must tap the volume and it takes approx 90 seconds to respond. It took some time for me to figure that out. (Otherwise, its been great)
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Allen T. Verified Purchaser
Nov 5th, 2017
The base box doesn’t work
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Romulo J. Verified Purchaser
Nov 4th, 2017
Just like brand new.
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Robert S. Verified Purchaser
Oct 23rd, 2017
This soundbar works when it wants to. I have it hooked up to my Google home setup. I bought the bar is supposed to work with Google. I have to reset the soundbar every few days to keep it working. The autoselect feature doesn't work well either. I have to choose what i want it to work with. IT sounds pretty good for how cheap it is though.
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1 person found this review helpful
Theresa L. Verified Purchaser
Oct 22nd, 2017
Love it.
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Cole H. Verified Purchaser
Oct 18th, 2017
Sounds great!
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Patricio Q. Verified Purchaser
Oct 8th, 2017
The setup was slightly more challenging than other units I have purchased. Great sound for this lower price.
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ryan o. Verified Purchaser
Oct 7th, 2017
Easy to set up, sounds great rnjoy it so far
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Matthew A. Verified Purchaser
Sep 22nd, 2017
Extremely easy to set up and the sound is that of some of the $500+ systems I have been looking at. Can't believe the value for the price. Had to by a second for another room.
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William R. Verified Purchaser
Sep 20th, 2017
Very nice sound and portable. Easy to use and great price.
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Average of 165 ratings

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