LG SL9YG vs VIZIO SB3821-C6 review

Votes 1 1
Rating 5 5
LG SL9YG
vs
VIZIO SB3821-C6

l would like to share my experience after comparing and testing two soundbars – LG SL9YG vs VIZIO SB3821-C6. The LG SL9YG was rated 7.4, while the VIZIO SB3821-C6 has a rating 4.5. The soundbars are equipped with a different number of buttons, power, volume down, volume up, play/pause, microphone for the SL9YG and power, input, Bluetooth, volume down, volume up for the SB3821-C6.

Audio features

Each of the models under consideration has active amplification type. A noticeable difference is the number of channels that SL9YG has 4.1.2 and SB3821-C6 has 2.1. 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 8 out of 10 received the LG SL9YG for audio features and specs, but the VIZIO SB3821-C6 received 5 out of 10.

Streaming services

Soundbars do not have AirPlay support. Google Play Music service is only in the SL9YG. The SL9YG can play audio from Spotify.

Connectivity

Wireless Internet connection is realized only in the SL9YG. Soundbars from this comparison have Bluetooth support. The HDMI Audio Return Channel (ARC) is implemented only in the SL9YG. Connecting devices via USB is possible in both models. We rated the connectivity of the SL9YG at 7 out of 10, while the SB3821-C6 was rated 6/10. The manufacturer of the SL9YG provides a device control application. The LG SL9YG equipped with a microphone. The models under consideration cannot become part of a multiroom system.

Multichannel surround

Dolby Atmos audio decoder is onboard the SL9YG. The SL9YG can work with surround sound due to DTS:X support. DTS Virtual:X technology not supported by any of the soundbars in this review. The SL9YG was rated 7/10, while the SB3821-C6 received a mark of 2/10 for multichannel surround.

Soundbars comparison chart

Add soundbar to comparison
We didn't find anything to show here

Common

Product

LG SL9YG
VIZIO SB3821-C6

Model

SL9YG
SB3821-C6

Brand

LG
VIZIO

Reviews

254
4009

General

Placement type

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

Connection to source

wired, wireless
wired, wireless

Soundbar buttons

power, volume down, volume up, play/pause, microphone
power, input, Bluetooth, volume down, volume up

Audio features

Built-in channels

4.1.2
2.1

Amplification type

active
active

Output power, W

500 (overall)

Separate speaker (in package)

0
0

Separate speaker connections

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

Tuneln, Deezer Chromecast
has not

Connectivity

WI-FI

Bluetooth

Ethernet (RJ45)

0
0

NFC

HDMI input/output

1/1
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

0/0
1/0

Analog audio input/output (RCA)

0/0
1/0

Headphone output

0
0

Subwoofer output

0
0

Features

Voice control

Google Assistant

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

121 x 5.5 x 14.4/48 x 2.2 x 5.7
96.5 x 7.6 x 7.6/38 x 3 x 3

Weight, kg/pounds

6.3/13.9
2.6/5.8
LG SL9YG
VIZIO SB3821-C6
LG SL9YG
VIZIO SB3821-C6

Soundbars SoundStrokes Art comparison rating

  • better
  • worse
  • 7.4
  • 4.5
  • 7.4LG SL9YG
  • 4.5VIZIO SB3821-C6

The LG SL9YG is better soundbar in this comparison. Check LG SL9YG price