Samsung HW-A550 vs LG SLM4R comparison definitely makes sense. Based on our rating, HW-A550 has a total rating of 4.6 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 Samsung HW-A550 has 2.1 versus 4.1 for the LG SLM4R. The output power is different and equal to 410 (overall) W for the HW-A550 versus 420 (overall) W for the SLM4R. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The Samsung HW-A550 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 HW-A550 supports HDMI Audio Return Channel (ARC). For connectivity, the HW-A550 received a rating of 8/10 versus 6/10, respectively.
App control is available for the SLM4R. None of the models under consideration have a built-in microphone. 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 Samsung HW-A550 got a rating of 6, and LG SLM4R 5 out of 10.