Polk Audio SIGNA S2 vs VIZIO SB36512-F6

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Votes 1 1
Rating 5 5

SIGNA S2 vs SB36512-F6 comparison chart

Polk Audio SIGNA S2
VIZIO SB36512-F6
Multichannel surround

Polk Audio SIGNA S2 vs VIZIO SB36512-F6 review

Polk Audio SIGNA S2
VIZIO SB36512-F6

Choosing a soundbar is not an easy task and the Polk Audio SIGNA S2 vs VIZIO SB36512-F6 comparison is meant to help you with that. As a result, it is clear that SB36512-F6 is much better designed and has a better sound performance than SIGNA S2. According to the results of our comparison, SIGNA S2 received 5 points out of 10 possible, and SB36512-F6 was rated 7.4 points.

Advantages Polk Audio SIGNA S2 over VIZIO SB36512-F6

  • We do not know advantages

Advantages VIZIO SB36512-F6 over Polk Audio SIGNA S2

  • Comes with 2 separate speakers
  • Available the Apple Music service
  • Stream music with Spotify
  • Supports object-oriented sound with Dolby Atmos technology
  • Possible to create a multi-room system
  • Wireless connection via Wi-Fi
  • Supports external media connection via USB
  • App for remote control

Audio features

The SIGNA S2 is rated 6 of 10 against 8 for the SB36512-F6 according to the audio features rating.


It worth understanding the difference between the two types of amplification: a passive soundbar does not have its own amplifier and receives amplification from the signal source, while an active soundbar has a built-in amplifier. The same active type of amplification is used in the SIGNA S2 and the SB36512-F6.

There are stereo soundbars and multichannel ones. It is with the help of multichannel devices that you can get volumetric sound. It is worth noting one of the main differences, the SIGNA S2 has 2.1 channels, while the SB36512-F6 has 5.1.2 channels.

SIGNA S2 SB36512-F6
Built-in channels2.15.1.2
Amplification typeactiveactive
Output power, WN/AN/A
Separate speaker (in package)02
Separate speaker connectionswirelesswireless


Soundbars can have a built-in or external subwoofer. The first type is inseparable from the soundbar body, but for the second, you can choose a good location for deep bass. Both reviewed devices are equipped with an external subwoofer. Competitors support wireless connection to a separate external subwoofer.

SIGNA S2 SB36512-F6
Built-in subwoofer
Separate subwoofer (in package)
Separate subwoofer connectionswirelesswireless

Multichannel surround

Unlike stereo, when reproducing multichannel sound, each specific direction of sound corresponds to its dedicated channel with a separate independent loudspeaker, which creates a three-dimensional sound stage. The SIGNA S2 received rating 4 out of 10 for multichannel audio processing, but the SB36512-F6, in the same category, earned 7 out of 10 points.


The peculiarity of Dolby Atmos is that this format is object-oriented, that is, each object of the audio signal is sounded separately and linked to its spatial location. Dolby Atmos surround sound support is implemented only in VIZIO SB36512-F6.

DTS:X is an algorithm for processing sound scenes by the processor, linking directly to objects, rather than channels, and calculating the optimal distribution of sound output in a room. This ability to reproduce surround sound with DTS:X technology is not implemented in any of the soundbars in this comparison.

SIGNA S2 SB36512-F6
Dolby Atmos
Dolby (other)Dolby DigitalDolby Digital
DTS (other)has nothas not

Streaming services

The possibility to listen online to millions of songs from one device has become a reality thanks to streaming services. For the ability to work with streaming services, the SIGNA S2 received 4 points, and the SB36512-F6 - 7 on a 10-point scale.


The popular Spotify service is available on the SB36512-F6.

SIGNA S2 SB36512-F6
Apple Music (AirPlay)AirPlay
Amazon Music
Other streaming serviceshas notPandora, TIDAL, VIZIO SmartCast, Chromecast


The existence of a sufficient number of current connectors significantly expands the functionality of the device. For example, only through HDMI is it possible to implement the transfer of object-oriented formats, and the presence of a Bluetooth connection will allow remote control, etc. The devices received different ratings for connectivity: Polk Audio SIGNA S2 was rated 6 out of 10, and VIZIO SB36512-F6 was rated 8 out of 10.


The presence of Wi-Fi in the soundbar allows you to get rid of wires when connected to a sound source and get minimal audio latency when playing content from streaming services. Wireless connection via Wi-Fi is possible on the SB36512-F6.

Bluetooth connection is now one of the main communication protocols for speaker systems, which provides excellent quality and minimal audio latency. The availability of Bluetooth protocol, we can see in both models. The competitors in this comparison has 1/0 HDMI inputs/outputs.

HDMI ARC is a very usefull technology that creates a two-way communication channel between a TV and another device. This is convenient since there is no need to use optical and other cables in the system. HDMI ARC is basic for both soundbars.

SIGNA S2 SB36512-F6
Ethernet (RJ45)01
HDMI input/output1/01/0
Optical digital input/output1/01/0
USB1 (USB 2.0)
Coaxial digital input/output0/01/0
Analog audio input/output (RCA)1/01/0
Headphone output00
Subwoofer output00


Voice control is designed to make operating the device more convenient. This allows you to control basic soundbar functions from anywhere in the room.

Proprietary applications allow you to control your soundbars remotely. This is possible both via Bluetooth and Wi-Fi. The SB36512-F6 has its own remote control application. None of these soundbars have a built-in microphone.

Some soundbars can be part of a multi-room system and it is an affordable solution for sounding the whole house. The SB36512-F6 has the ability to use a multiroom system.

SIGNA S2 SB36512-F6
Voice control
App control
Remote control


SIGNA S2 SB36512-F6
Size (Wx H x D), cm/in89.9 x 5.4 x 8.1/35.4 x 2.1 x 3.291.4 x 6.3 x 8.1/36 x 2.5 x 3.1
Weight, kg/poundsN/A2.5/5.6
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