The Samsung HW-A550 vs Polk Audio Signa S3 comparison shows that these models have some important differences and common features. The Samsung HW-A550 was rated 4.6, while the Polk Audio Signa S3 has a rating 6.4. Soundbars have the same set of buttons - power, source, demo, volume down, volume up.
Each of the models under consideration has active amplification type. By the number of channels, the devices do not differ. 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 5 out of 10 received the Samsung HW-A550 for audio features and specs, but the Polk Audio Signa S3 received 4 out of 10.
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 Samsung HW-A550 versus 1/0 HDMIs in the Polk Audio Signa S3. As in the HW-A550, so in the Signa S3 there is the HDMI Audio Return Channel (ARC). We rated the connectivity of the HW-A550 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.
Dolby Atmos audio decoder support is not implemented in either the HW-A550 or Signa S3. Devices from this comparison cannot process surround sound due to lack of DTS:X. The HW-A550 was rated 6/10, while the Signa S3 received a mark of 4/10 for multichannel surround.