The ZVOX SB380 vs Polk Audio Signa S3 comparison shows that these models have some important differences and common features. The ZVOX SB380 was rated 4, 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 for the SB380 and power, source, demo, volume down, volume up for the Signa S3.
Each of the models under consideration has active amplification type. A noticeable difference is the number of channels that SB380 has 3.1 and Signa S3 has 2.1. A built-in subwoofer is available only in the ZVOX SB380. Rate 6 out of 10 received the ZVOX SB380 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. Bluetooth support integrated in the Signa S3. The HDMI Audio Return Channel (ARC) is implemented only in the Signa S3. We rated the connectivity of the SB380 at 4 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 SB380 or Signa S3. Devices from this comparison cannot process surround sound due to lack of DTS:X. The same score of 4/10 was put to the soundbars for multichannel surround support.