VIZIO SB3821-C6 38″ -Inch 2.1 Channel Sound Bar System Review

 Are you looking for a sound bar with a compact design and top quality? Check our VIZIO SB3821-C6 38-Inch 2.1 Channel Sound Bar Review, and you’ll soon find out!


The soundbar is one of the most common choices when people want to get an ultimate TV audio entertainment. The VIZIO SB3821-C6 38-Inch 2.1 Channel with Wireless Subwoofer is designed to meet this need. I recently had the chance to experience this device, and I found it really good. It creates high-quality sound without breaking the bank.

Keep reading my VIZIO SB3821-C6 38-Inch 2.1 Channel Sound Bar Review, and you’ll soon find out why I said that!

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  • Speaker Types: Soundbar and Wireless Subwoofer
  • Dimensions: 3W x 38L x 3H inches (Soundbar) and 8.3W x 8.3L x 9.1H inches (Subwoofer)
  • Weight: 5.8 pounds (Soundbar) and 7.2 pounds (Subwoofer)
  • Channel: 2.1
  • Color: Black
  • Connectivity Technology: Bluetooth
  • Sound Quality: 100 dB clear sound with less than 1% of harmonic distortion
  • Wireless Range: 60 feet
  • Power Requirements: 120 VAC, 60 Hz


2.1 Sound System

Within the package, there are a solid-construction sound bar and a wireless subwoofer. The system is called 2.1, which means you’ll get both left and right channels for stereo. From my experience, the 2.1 channel system dramatically improves the sound quality coming from flat-screen televisions. And with such excellent sound quality, you can now bring an enticing home theater to your home.

Wireless Subwoofer

The word “wireless” reveals everything! As you connect the soundbar to the subwoofer, you have no physical connection wires to struggle with. This also means your home will be free of clutter while you’re watching awesome movies, music and TV shows. One more great thing, the wireless Range is up to 60 feet, which is just redundant in most cases.

Incredible Audio Quality

While the sound bar produces crystal-clear audio, the subwoofer creates deep, rich bass. The audio produced can be up to 100 dB of room filling, which is enough to cover a 400-square-feet living room. With less than 1% harmonic distortions, you are guaranteed of superb clear output. It’s obviously one of the best in the class!

Ease of Connection

Alternative solutions of connection of this sound bar system are really important. Let me explain why! Typically, competitive brands usually supply only one or two cables. If your television is older, let’s say 2007 or even more, some of the digital connectivity might not pass the audio signal down to the system. VIZIO is more thoughtful because they give you three options: digital Toslink cable, an RCA cable, and a digital coaxial cable.

Ease of Setting Up

You have two choices when it comes to installing this sound bar system: placing it on a stand in front of your TV or mounting it to the wall. If you decide that you want the second option, Vizio does provide a complete hardware and a paper wall mounting template included in the package. However, it might take you about 30 minutes to do mount the system properly and conceal all the wires.

Bluetooth Audio Streaming

If you’re a true fan of music, you’ll listen to music wherever it comes from. VIZIO knows, and they feature an integrated Bluetooth connectivity that lets wireless streaming of audio files to and from the sound bar and other devices (like smartphones or laptops) become easy.


I’ve had amazing sound experience with this soundbar system. According to the manufacturer VIZIO, they feature two advanced technologies called Dolby Digital (to provides impressive spatial dimension and enhance audio definition) and DTS TruSurround (to create faux surround sound effects) in their device. And from what I’ve heard, they truly work!

The sound coming from the system are full, clear and crisp. As I switched to stereo mode and sat directly in front of the soundbar, I could hear four walls of sound around my listening area. The bass is rich and could be adequate for most musical uses. It does offer enough punch to get the point across, but don’t worry, you won’t get chest pounding bass as listing to the subwoofer.

I played some blockbusters with this soundbar system. As I activated both the Dolby Digital and DTS TruSurround, I could feel how large and open the soundstage is. I also found the sound quality was really satisfying with indiscernible distortion, crackling or unexpected vibration even when I increased the volume to the peak level.

Moreover, the system features the DTS TruVolume which helps to keep the volume levels consistent for a more enjoyable multimedia experience.


  • The quality of sound is mind-blowing – very clear, crisp, full, rich and consistent!
  • It’s easy to connect with all the cables included and wireless subwoofer.
  • It’s easy to use with a remote control to control your tracks.
  • It looks much smaller and sleeker than many competitive sound bar systems. It’s also very eye-catching with brushed aluminum finish, black grille, and black panels.
  • The built-in Bluetooth takes only a few seconds to connect.
  • It allows connecting from and to other smart devices.



  • Using LED indicators is not the best way to indicate the bar’s current status, especially when comparing to an LCD.
  • The Bluetooth streaming sometimes lags, slowing the sound down.
  • The volume gets loud too fast when adjusting.

VIZIO SB3821-C6 38-Inch 2.1 Channel Sound Bar Review – Conclusion

Our Rating:

  • Sound Quality: 9

  • Design: 8

  • Features: 7.5

  • Value: 8

VIZIO SB3821-C6 looks simple and neat from the outside, but it’s outstanding in the core due to high-quality sound performance. Although there are a few drawbacks to this device, its merits far outweigh its demerits. If you’re seeking an ultimate way to enjoy your favorite media, you won’t go wrong with this VIZIO SB3821-C6.

It’s time to say goodbye! Thank you for stopping off my website and check my VIZIO SB3821-C6 38-Inch 2.1 Channel Sound Bar Review. I’ll see you later!

Read more: Vizio SB3851-C0 Review!

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[…] over their hometown, they started manufacturing the first model of sound bar in 2014, called the VIZIO SB3821-C6 2.1 Channel Sound Bar. In this review, I won’t lead you through the specifications, features and performance of this […]

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