LG SN11RG vs Sony HT-S400 comparison definitely makes sense. Based on our rating, SN11RG has a total rating of 7.5 out of 10 versus 4.4 for HT-S400.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the LG SN11RG has 7.1.4 versus 2.1 for the Sony HT-S400. The output power is different and equal to 770 (overall) W for the SN11RG versus 330 (overall) W for the HT-S400. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The LG SN11RG got our rating of 9 out of 10, and the Sony HT-S400 6 for its audio features and specs.
Soundbars do not have AirPlay support. Spotify support not implemented in both soundbars.
Only the LG SN11RG can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The LG SN11RG has 2/1 HDMI inputs/outputs versus 0/1 of the Sony HT-S400. The HDMI Audio Return Channel (ARC) feature supports both devices. Both soundbars have a USB connector. For connectivity, the SN11RG received a rating of 9/10 versus 7/10, respectively. App control is available for the SN11RG. A built-in microphone is present only on the SN11RG. Soundbars do not have Multi-room support.
Only the SN11RG has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SN11RG. For multichannel surround LG SN11RG got a rating of 10, and Sony HT-S400 5 out of 10.