It makes sense comparing LG S75QR vs LG S90QY because they both are able to give some premium features. Based on our rating, S75QR has a total rating of 5.5 out of 10 versus 8 for S90QY.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the LG S75QR has 5.1.2 versus 5.1.3 for the LG S90QY. The output power is different and equal to 450 (overall) W for the S75QR versus 440 (overall) W for the S90QY. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. Both models received our 8 rating of 10 for their audio features and specs.
Spotify support is available on the S90QY.
Only the LG S90QY can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Each soundbar has 1/1 HDMI inputs/outputs. The HDMI Audio Return Channel (ARC) feature supports both devices. Both soundbars have a USB connector. For connectivity, the S75QR received a rating of 7/10 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.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review. For multichannel surround LG S75QR got a rating of 6, and LG S90QY 10 out of 10.