It makes sense comparing LG S90QY vs Samsung HW-A450 because they both are able to give some premium features. Based on our rating, S90QY has a total rating of 8 out of 10 versus 4 for HW-A450.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the LG S90QY has 5.1.3 versus 2.1 for the Samsung HW-A450. The output power is different and equal to 440 (overall) W for the S90QY versus 300 (overall) W for the HW-A450. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The LG S90QY got our rating of 8 out of 10, and the Samsung HW-A450 5 for its 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. Only the S90QY supports HDMI Audio Return Channel (ARC). For connectivity, the S90QY received a rating of 8/10 versus 5/10, 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 S90QY has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the S90QY. For multichannel surround LG S90QY got a rating of 10, and Samsung HW-A450 6 out of 10.