It makes sense comparing LG SN9YG vs Samsung HW-A450 because they both are able to give some premium features. Based on our rating, SN9YG has a total rating of 7 out of 10 versus 4 for HW-A450. The competitors' control buttons are different: power, volume down, volume up, function, play/pause, microphone 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 LG SN9YG has 5.1.2 versus 2.1 for the Samsung HW-A450. The output power is different and equal to 520 (overall) W for the SN9YG 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 SN9YG got our rating of 8 out of 10, and the Samsung HW-A450 5 for its audio features and specs.
Soundbars do not have AirPlay support. Spotify support not implemented in both soundbars.
Only the LG SN9YG can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the SN9YG supports HDMI Audio Return Channel (ARC). For connectivity, the SN9YG received a rating of 8/10 versus 5/10, respectively. App control is available for the SN9YG. A built-in microphone is present only on the SN9YG. Soundbars do not have Multi-room support.
Only the SN9YG has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SN9YG. For multichannel surround LG SN9YG got a rating of 10, and Samsung HW-A450 6 out of 10.