VIZIO SB2821-D6 vs VIZIO SB3821-C6 review

Votes 1 1
Rating 5 5
VIZIO SB2821-D6
vs
VIZIO SB3821-C6

l would like to share my experience after comparing and testing two soundbars – VIZIO SB2821-D6 vs VIZIO SB3821-C6. The VIZIO SB2821-D6 was rated 4.4, while the VIZIO SB3821-C6 has a rating 4.5. Soundbars have the same set of buttons - power, input, Bluetooth, volume down, volume up.

Audio features

Each of the models under consideration has active amplification type. By the number of channels, the devices do not differ. The built-in subwoofer is not implemented in any of these models. An external subwoofer can be connected to any of the units in this comparison. Rate 6 out of 10 received the VIZIO SB2821-D6 for audio features and specs, but the VIZIO SB3821-C6 received 5 out of 10.

Streaming services

Soundbars do not have AirPlay support. Both devices do not have Google Play Music on board. The units in this comparison do not support Spotify.

Connectivity

Both models do not have a wireless Wi-Fi interface. Soundbars from this comparison have Bluetooth support. Neither the SB2821-D6 nor SB3821-C6 has the HDMI Audio Return Channel (ARC). Connecting devices via USB is possible in both models. We rated the connectivity of the SB2821-D6 at 5 out of 10, while the SB3821-C6 was rated 6/10.

Features

None of these soundbars can be controlled using the app. Soundbars in this review are not equipped with a microphone. The models under consideration cannot become part of a multiroom system.

Multichannel surround

Dolby Atmos audio decoder support is not implemented in either the SB2821-D6 or SB3821-C6. Devices from this comparison cannot process surround sound due to lack of DTS:X. DTS Virtual:X technology not supported by any of the soundbars in this review. The same score of 2/10 was put to the soundbars for multichannel surround support.

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Common

Product

VIZIO SB2821-D6
VIZIO SB3821-C6

Model

SB2821-D6
SB3821-C6

Brand

VIZIO
VIZIO

Reviews

921
4009

General

Placement type

table-top, wall-mountable
table-top, wall-mountable

Connection to source

wired, wireless
wired, wireless

Soundbar buttons

power, input, Bluetooth, volume down, volume up
power, input, Bluetooth, volume down, volume up

Audio features

Built-in channels

2.1
2.1

Amplification type

active
active

Output power, W

Separate speaker (in package)

0
0

Separate speaker connections

wired, wireless

Subwoofer

Built-in subwoofer

Separate subwoofer (in package)

1
1

Separate subwoofer connections

wireless
wireless

Streaming services

Apple Music (AirPlay)

Google Play Music

Amazon Music

Spotify

Other streaming services

TIDAL, VIZIO SmartCast, Chromecast
has not

Connectivity

WI-FI

Bluetooth

Ethernet (RJ45)

0
0

NFC

HDMI input/output

0/0
0/0

HDMI ARC

Optical digital input/output

1/0
1/0

USB

1 (USB 2.0)
1 (USB 2.0)

Coaxial digital input/output

1/0
1/0

Analog audio input/output (RCA)

1/0
1/0

Headphone output

0
0

Subwoofer output

0
0

Features

Voice control

App control

Microphone

Remote control

Multi-room

Multichannel surround

Dolby Atmos

Dolby Digital

Dolby Pro Logic II

DTS:X

DTS Virtual:X

User manual

Manual

Dimensions

Size (Wx H x D), cm/in

28 x 3 x 3/71.1 x 7.6 x 7.6
96.5 x 7.6 x 7.6/38 x 3 x 3

Weight, kg/pounds

1.3/3.8
2.6/5.8
VIZIO SB2821-D6
VIZIO SB3821-C6
VIZIO SB2821-D6
VIZIO SB3821-C6

Soundbars SoundStrokes Art comparison rating

  • better
  • worse
  • 4.4
  • 4.5
  • 4.4VIZIO SB2821-D6
  • 4.5VIZIO SB3821-C6

The VIZIO SB3821-C6 is better soundbar in this comparison. Check VIZIO SB3821-C6 price