LG SN9YG vs Polk Audio Signa S3 review

Votes 1 1
Rating 5 5

LG SN9YG vs Polk Audio Signa S3 comparison chart

LG SN9YG vs Polk Audio Signa S3 review

Polk Audio Signa S3

The LG SN9YG vs Polk Audio Signa S3 comparison shows that these models have some important differences and common features. The LG SN9YG was rated 7, while the Polk Audio Signa S3 has a rating 6.4. The soundbars are equipped with a different number of buttons, power, volume down, volume up, function, play/pause, microphone for the SN9YG and power, source, demo, volume down, volume up for the Signa S3.

Audio features

Each of the models under consideration has active amplification type. A noticeable difference is the number of channels that SN9YG has 5.1.2 and Signa S3 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 SN9YG for audio features and specs, but the Polk Audio Signa S3 received 4 out of 10.

Streaming services

The Signa S3 can play audio from Spotify.


Both models have a wireless Wi-Fi interface. Soundbars from this comparison have Bluetooth support. There are 1/1 HDMI inputs/outputs in the LG SN9YG versus 1/0 HDMIs in the Polk Audio Signa S3. As in the SN9YG, so in the Signa S3 there is the HDMI Audio Return Channel (ARC). Connecting devices via USB is possible in both models. We rated the connectivity of the SN9YG at 8 out of 10, while the Signa S3 was rated 5/10. Each of the soundbars can be controlled using the application. The soundbars in this review are equipped with a microphone. The models under consideration cannot become part of a multiroom system.

Multichannel surround

Dolby Atmos audio decoder is onboard the SN9YG. The SN9YG can work with surround sound due to DTS:X support. The SN9YG was rated 10/10, while the Signa S3 received a mark of 4/10 for multichannel surround.

Advantages LG SN9YG over Polk Audio Signa S3

  • Compatible with Dolby Atmos
  • Compatible with DTS:X

Advantages Polk Audio Signa S3 over LG SN9YG

  • Amazon Music compatible
  • Spotify support
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Polk Audio Signa S3


Signa S3


Polk Audio