Polk Audio SIGNA S2 vs VIZIO SB4451-C0 review

Votes 1 1
Rating 5 5
Polk Audio SIGNA S2
vs
VIZIO SB4451-C0

l would like to share my experience after comparing and testing two soundbars – Polk Audio SIGNA S2 vs VIZIO SB4451-C0. The Polk Audio SIGNA S2 was rated 5, while the VIZIO SB4451-C0 has a rating 6.4. The soundbars are equipped with a different number of buttons, power, volume down, volume up, source, Bluetooth for the SIGNA S2 and power, input, Bluetooth, volume down, volume up for the SB4451-C0.

Audio features

Each of the models under consideration has active amplification type. A noticeable difference is the number of channels that SIGNA S2 has 2.1 and SB4451-C0 has 5.1. 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 6 out of 10 received the Polk Audio SIGNA S2 for audio features and specs, but the VIZIO SB4451-C0 received 8 out of 10.

Streaming services

AirPlay supported by both soundbars. Google Play Music service is only in the SB4451-C0. The SB4451-C0 can play audio from Spotify.

Connectivity

Wireless Internet connection is realized only in the SB4451-C0. Soundbars from this comparison have Bluetooth support. 1/0 HDMI inputs/outputs are in each of soundbars. As in the SIGNA S2, so in the SB4451-C0 there is the HDMI Audio Return Channel (ARC). We rated the connectivity of the SIGNA S2 at 6 out of 10, while the SB4451-C0 was rated 8/10.

Features

The manufacturer of the SB4451-C0 provides a device control application. 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 SIGNA S2 or SB4451-C0. 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 SIGNA S2 was rated 4/10, while the SB4451-C0 received a mark of 2/10 for multichannel surround.

Advantages VIZIO SB4451-C0 over Polk Audio SIGNA S2

  • Google Play Music compatible
  • Amazon Music compatible
  • Spotify support
  • WI-FI enabled
  • App control

Soundbars comparison chart

Overall
Polk Audio SIGNA S2
5
VIZIO SB4451-C0
6.4
4
5
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Common

Product

Polk Audio SIGNA S2
VIZIO SB4451-C0

Model

SIGNA S2
SB4451-C0

Brand

Polk Audio
VIZIO

Reviews

3428
118

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

Audio features

Built-in channels

2.1
5.1

Amplification type

active
active

Output power, W

Separate speaker (in package)

0
2

Separate speaker connections

wireless
wireless

Subwoofer

Built-in subwoofer

Separate subwoofer (in package)

1
1

Separate subwoofer connections

wireless
wireless

Streaming services

Apple Music (AirPlay)

AirPlay
AirPlay

Google Play Music

Amazon Music

Spotify

Other streaming services

has not
VIZIO SmartCast

Connectivity

WI-FI

Bluetooth

Ethernet (RJ45)

0
1

NFC

HDMI input/output

1/0
1/0

HDMI ARC

Optical digital input/output

1/0
1/0

USB

1 (USB 2.0)

Coaxial digital input/output

0/0
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

89.9 x 5.4 x 8.1/35.4 x 2.1 x 3.2
111.7 x 7.6 x 7.6/44 x 3 x 3

Weight, kg/pounds

4.5/10.8
Polk Audio SIGNA S2
VIZIO SB4451-C0
Polk Audio SIGNA S2
VIZIO SB4451-C0

Soundbars SoundStrokes Art comparison rating

  • better
  • worse
  • 5
  • 6.4
  • 5Polk Audio SIGNA S2
  • 6.4VIZIO SB4451-C0

The VIZIO SB4451-C0 is better soundbar in this comparison. Check VIZIO SB4451-C0 price