Yamaha YAS-209 vs Sony HT-S400 comparison definitely makes sense. Based on our rating, YAS-209 has a total rating of 8.2 out of 10 versus 4.4 for HT-S400.
Both soundbars have active amplification type. Soundbars have the same number of channels on 2.1. The output power is different and equal to 200 (overall) W for the YAS-209 versus 330 (overall) W for the HT-S400. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. Both models received our 6 rating of 10 for their audio features and specs.
Spotify support is available on the YAS-209.
Only the Yamaha YAS-209 can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The Yamaha YAS-209 has 1/1 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 YAS-209 received a rating of 8/10 versus 7/10, respectively.
App control is available for the YAS-209. A built-in microphone is present only on the YAS-209. Soundbars do not have Multi-room support.
None of soundbars equipped with Dolby Atmos multichannel audio decoder. The soundbars do not support the surround sound technology DTS:X. For multichannel surround Yamaha YAS-209 got a rating of 8, and Sony HT-S400 5 out of 10.