It makes sense comparing Polk Audio SIGNA S2 vs LG SL9YG 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 7.4 for SL9YG. The competitors' control buttons are different: power, volume down, volume up, source, Bluetooth and power, volume down, volume up, play/pause, microphone, 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 4.1.2 for the LG SL9YG. 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 LG SL9YG 8 for its audio features and specs. Only the SL9YG supports Google Play Music. Spotify support is available on the SL9YG.
Only the LG SL9YG can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The Polk Audio SIGNA S2 has 1/0 HDMI inputs/outputs versus 1/1 of the LG SL9YG. 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 SL9YG. A built-in microphone is present only on the SL9YG. Soundbars do not have Multi-room support.
Only the SL9YG has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SL9YG. Compared devices do not have DTS Virtual:X support. For multichannel surround Polk Audio SIGNA S2 got a rating of 4, and LG SL9YG 7 out of 10.
The LG SL9YG is better soundbar in this comparison. Check LG SL9YG price