Polk Audio SIGNA S2 vs Samsung HW-R650 comparison definitely makes sense. Based on our rating, SIGNA S2 has a total rating of 5 out of 10 versus 5.2 for HW-R650. The competitors' control buttons are different: power, volume down, volume up, source, Bluetooth and volume down, volume up, power, source, respectively.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the Polk Audio SIGNA S2 has 2.1 versus 3.1 for the Samsung HW-R650. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The Polk Audio SIGNA S2 got our rating of 6 out of 10, and the Samsung HW-R650 7 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 Samsung HW-R650. 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.
Compared soundbars have no app control. None of the models under consideration have a built-in microphone. Soundbars do not have Multi-room support.
None of soundbars equipped with Dolby Atmos multichannel audio decoder. The soundbars do not support the surround sound technology DTS:X. For multichannel surround Polk Audio SIGNA S2 got a rating of 4, and Samsung HW-R650 5 out of 10.