Denon DHT-S517 vs LG SLM4R comparison definitely makes sense. Based on our rating, DHT-S517 has a total rating of 5.4 out of 10 versus 5.2 for SLM4R. The competitors' control buttons are different: power, source, demo, volume down, volume up and power, volume down, volume up, function, respectively.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the Denon DHT-S517 has 3.1.2 versus 4.1 for the LG SLM4R. The output power is different and equal to 40 (overall) W for the DHT-S517 versus 420 (overall) W for the SLM4R. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The Denon DHT-S517 got our rating of 5 out of 10, and the LG SLM4R 7 for its audio features and specs.
Soundbars do not have AirPlay support. Spotify support not implemented in both soundbars.
Both models do not have WI-FI support. Rivals from our review have Bluetooth support. Only the DHT-S517 supports HDMI Audio Return Channel (ARC). For connectivity, the DHT-S517 received a rating of 7/10 versus 6/10, respectively.
App control is available in every soundbar. None of the models under consideration have a built-in microphone. Soundbars do not have Multi-room support.
Only the DHT-S517 has a Dolby Atmos multichannel audio format support. The soundbars do not support the surround sound technology DTS:X. For multichannel surround Denon DHT-S517 got a rating of 7, and LG SLM4R 5 out of 10.