It makes sense comparing Yamaha YAS-109 vs Samsung HW-LST70T because they both are able to give some premium features. Based on our rating, YAS-109 has a total rating of 6.8 out of 10 versus 6.4 for HW-LST70T. The competitors' control buttons are different: power, volume down, volume up, input, microphone and volume down, volume up, power, source, respectively.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the Yamaha YAS-109 has 2.0 versus 3.0 for the Samsung HW-LST70T. The output power is different and equal to 120 W for the YAS-109 versus 210 (overall) W for the HW-LST70T. Competitors have a built-in subwoofer. The YAS-109 has a wired and wireless connection to separate subwoofer, and the HW-LST70T - wireless. Both models received our 6 rating of 10 for their audio features and specs.
Soundbars do not have AirPlay support. 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. The Yamaha YAS-109 has 1/1 HDMI inputs/outputs versus 1/0 of the Samsung HW-LST70T. Only the YAS-109 supports HDMI Audio Return Channel (ARC). Both soundbars have a USB connector. For connectivity, the YAS-109 received a rating of 8/10 versus 6/10, respectively.
Both models support voice control using Amazon Alexa. App control is available in every soundbar. A built-in microphone is present in each model. Multi-room is only available for the Samsung HW-LST70T.
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-109 got a rating of 6, and Samsung HW-LST70T 5 out of 10.