Yamaha SR-C20A vs Polk Audio Signa S3

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Votes 1 1
Rating 5 5

SR-C20A vs Signa S3 comparison chart

Yamaha SR-C20A
Polk Audio Signa S3
Multichannel surround

Yamaha SR-C20A vs Polk Audio Signa S3 review

Yamaha SR-C20A
Polk Audio Signa S3

Comparing Yamaha SR-C20A and Polk Audio Signa S3 makes sense because it shows what devices in their segment can offer. Signa S3 offers better sound and bass than its opponent - SR-C20A. According to the results of our comparison, SR-C20A received 3.8 points out of 10 possible, and Signa S3 was rated 6.4 points.

Advantages Yamaha SR-C20A over Polk Audio Signa S3

  • Has an integrated subwoofer

Advantages Polk Audio Signa S3 over Yamaha SR-C20A

  • Separate subwoofer provided
  • Available the Apple Music service
  • Available the Amazon Music service
  • Stream music with Spotify
  • Wireless connection via Wi-Fi
  • Voice control supports
  • App for remote control
  • Built-in microphone

Audio features

The SR-C20A is rated 5 of 10 against 4 for the Signa S3 according to the audio features rating.

Signa S3

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 SR-C20A and the Signa S3.

There are stereo soundbars and multichannel ones. It is with the help of multichannel devices that you can get volumetric sound. The number of channels in the considered devices is the same - 2.1.

SR-C20A Signa S3
Built-in channels2.12.1
Amplification typeactiveactive
Output power, W100 (overall)N/A
Separate speaker (in package)00
Separate speaker connectionshas nothas not


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. A built-in subwoofer is only present in the SR-C20A. The Signa S3 comes with an external subwoofer.

SR-C20A Signa S3
Built-in subwoofer
Separate subwoofer (in package)
Separate subwoofer connectionswireless

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 SR-C20A received rating 6 out of 10 for multichannel audio processing, but the Signa S3, in the same category, earned 4 out of 10 points.

Signa S3

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. If we look at the models in terms of Dolby Atmos support, then none of these soundbars can work with this technology.

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.

SR-C20A Signa S3
Dolby Atmos
Dolby (other)Dolby Digital, Dolby Pro Logic IIDolby Digital
DTS (other)

Streaming services

The possibility to listen online to millions of songs from one device has become a reality thanks to streaming services.

Signa S3

The popular Spotify service is available on the Signa S3.

SR-C20A Signa S3
Apple Music (AirPlay)
Amazon Music
Other streaming serviceshas notPandora, SoundCloud


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: Yamaha SR-C20A was rated 4 out of 10, and Polk Audio Signa S3 was rated 5 out of 10.

Signa S3

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 Signa S3.

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 SR-C20A has 0/1 HDMI inputs/outputs, but the Signa S3 got 1/0 HDMI inputs/outputs from the manufacturer.

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. Connecting external devices via USB can be done on both models.

SR-C20A Signa S3
Ethernet (RJ45)00
HDMI input/output0/11/0
Optical digital input/output2/01/0
USB1 (USB 2.0)1 (USB 2.0)
Coaxial digital input/output0/00/0
Analog audio input/output (RCA)0/00/0
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 Signa S3 has its own remote control application. Only Polk Audio Signa S3 has 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. However, it is impossible to create a multiroom system based on each of these soundbars.

SR-C20A Signa S3
Voice control
App control
Remote control


SR-C20A Signa S3
Size (Wx H x D), cm/in60x6.4x9.4/23.5x2.5x3.789.8x5.6x8.3/35.3x2.1x3.2
Weight, kg/pounds1.7/3.92.9/6
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