It makes sense comparing Yamaha YAS-209 vs LG SL9YG because they both are able to give some premium features. Based on our rating, YAS-209 has a total rating of 8.2 out of 10 versus 8 for SL9YG. The competitors' control buttons are different: power, source, demo, volume down, volume up, microphone mute 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 Yamaha YAS-209 has 2.1 versus 4.1.2 for the LG SL9YG. The output power is different and equal to 200 (overall) W for the YAS-209 versus 500 (overall) W for the SL9YG. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The Yamaha YAS-209 got our rating of 6 out of 10, and the LG SL9YG 8 for its audio features and specs.
Spotify is available on each of the soundbars.
These models have the ability to 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 YAS-209 received a rating of 8/10 versus 7/10, respectively. App control is available in every soundbar. A built-in microphone is present in each model. Multi-room is only available for the LG SL9YG.
Only the SL9YG has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SL9YG. For multichannel surround, each of the opponents received 8 points out of 10.