Sony HT-X9000F vs LG SLM4R comparison definitely makes sense. Based on our rating, HT-X9000F has a total rating of 7 out of 10 versus 5.2 for SLM4R. The competitors' control buttons are different: power, input, Bluetooth, 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 Sony HT-X9000F has 2.1 versus 4.1 for the LG SLM4R. The output power is different and equal to 300 (overall) W for the HT-X9000F versus 420 (overall) W for the SLM4R. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. Both models received our 7 rating of 10 for their audio features and specs. Spotify support is available on the HT-X9000F.
Both models do not have WI-FI support. Rivals from our review have Bluetooth support. Only the HT-X9000F supports HDMI Audio Return Channel (ARC). Both soundbars have a USB connector. For connectivity, the HT-X9000F received a rating of 7/10 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.
Only the HT-X9000F has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the HT-X9000F. For multichannel surround Sony HT-X9000F got a rating of 9, and LG SLM4R 5 out of 10.