It makes sense comparing Polk Audio SIGNA S2 vs Nakamichi Shockwafe Pro 7.1 because they both are able to give some premium features. Based on our rating, SIGNA S2 has a total rating of 5 out of 10 versus 7.8 for Shockwafe Pro 7.1. 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. A significant difference between the units in the number of channels, the Polk Audio SIGNA S2 has 2.1 versus 7.1.4 for the Nakamichi Shockwafe Pro 7.1. 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 Nakamichi Shockwafe Pro 7.1 8 for its audio features and specs. Spotify support is available on the Shockwafe Pro 7.1.
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 3/1 of the Nakamichi Shockwafe Pro 7.1. The HDMI Audio Return Channel (ARC) feature supports both devices. For connectivity, the SIGNA S2 received a rating of 6/10 versus 8/10, 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.
Only the Shockwafe Pro 7.1 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the Shockwafe Pro 7.1. For multichannel surround Polk Audio SIGNA S2 got a rating of 4, and Nakamichi Shockwafe Pro 7.1 10 out of 10.