It makes sense comparing Denon HEOS BAR vs LG SL9YG because they both are able to give some premium features. Based on our rating, HEOS BAR has a total rating of 7 out of 10 versus 8 for SL9YG. The competitors' control buttons are different: volume down, volume up, sound off 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 Denon HEOS BAR has 3.0 versus 4.1.2 for the LG SL9YG. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The Denon HEOS BAR got our rating of 6 out of 10, and the LG SL9YG 8 for its audio features and specs.
Soundbars do not have AirPlay support. Spotify is available on each of the soundbars.
Only the LG SL9YG can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The Denon HEOS BAR has 4/1 HDMI inputs/outputs versus 1/1 of the LG SL9YG. The HDMI Audio Return Channel (ARC) feature supports both devices. Both soundbars have a USB connector. For connectivity, each of the soundbars received a rating of 7/10.
App control is available in every soundbar. A built-in microphone is present in each model. Multi-room is available to every soundbar.
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 Denon HEOS BAR got a rating of 5, and LG SL9YG 8 out of 10.