Polk Audio SIGNA S2 vs Denon DHT-S217 comparison definitely makes sense. Based on our rating, SIGNA S2 has a total rating of 5 out of 10 versus 4.8 for DHT-S217. The competitors' control buttons are different: power, volume down, volume up, source, Bluetooth and power, source, demo, volume down, volume up, respectively.
Both soundbars have active amplification type. Soundbars have the same number of channels on 2.1. Only the Denon DHT-S217 has a built-in subwoofer. The SIGNA S2 has a wireless connection to separate subwoofer, and the DHT-S217 - wired. The Polk Audio SIGNA S2 got our rating of 6 out of 10, and the Denon DHT-S217 4 for its audio features and specs. Spotify support not implemented in both soundbars.
Both models do not have WI-FI support. Rivals from our review have Bluetooth support. The Polk Audio SIGNA S2 has 1/0 HDMI inputs/outputs versus 1/1 of the Denon DHT-S217. The HDMI Audio Return Channel (ARC) feature supports both devices. For connectivity, the SIGNA S2 received a rating of 6/10 versus 7/10, respectively.
App control is available for the DHT-S217. None of the models under consideration have a built-in microphone. Soundbars do not have Multi-room support.
Only the DHT-S217 has a Dolby Atmos multichannel audio format support. The soundbars do not support the surround sound technology DTS:X. For multichannel surround Polk Audio SIGNA S2 got a rating of 4, and Denon DHT-S217 5 out of 10.