Sony HT-X8500 vs Polk Audio Signa S3 review

Votes 1 1
Rating 5 5

Sony HT-X8500 vs Polk Audio Signa S3 comparison chart

Sony HT-X8500
Polk Audio Signa S3

Sony HT-X8500 vs Polk Audio Signa S3 review

Sony HT-X8500
Polk Audio Signa S3

The Sony HT-X8500 vs Polk Audio Signa S3 comparison shows that these models have some important differences and common features. The Sony HT-X8500 was rated 6, 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, input, Bluetooth for the HT-X8500 and power, source, demo, volume down, volume up for the Signa S3.

Audio features

Each of the models under consideration has active amplification type. By the number of channels, the devices do not differ. A built-in subwoofer is available only in the Sony HT-X8500. Rate 6 out of 10 received the Sony HT-X8500 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.


Wireless Internet connection is realized only in the Signa S3. Soundbars from this comparison have Bluetooth support. There are 1/1 HDMI inputs/outputs in the Sony HT-X8500 versus 1/0 HDMIs in the Polk Audio Signa S3. As in the HT-X8500, 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 HT-X8500 at 8 out of 10, while the Signa S3 was rated 5/10.


The manufacturer of the Signa S3 provides a device control application. The Polk Audio Signa S3 equipped with a microphone. The models under consideration cannot become part of a multiroom system.

Multichannel surround

Dolby Atmos audio decoder is onboard the HT-X8500. The HT-X8500 can work with surround sound due to DTS:X support. The HT-X8500 was rated 10/10, while the Signa S3 received a mark of 4/10 for multichannel surround.

Advantages Sony HT-X8500 over Polk Audio Signa S3

  • Built-in subwoofer
  • Compatible with Dolby Atmos
  • Compatible with DTS:X

Advantages Polk Audio Signa S3 over Sony HT-X8500

  • Separate subwoofer in package
  • Amazon Music compatible
  • Spotify support
  • WI-FI enabled
  • App control
  • Microphone
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Sony HT-X8500
Polk Audio Signa S3


Signa S3


Polk Audio