JBL BAR 300 vs LG SLM4R comparison definitely makes sense. Based on our rating, BAR 300 has a total rating of 8.4 out of 10 versus 5.2 for SLM4R. The competitors' control buttons are different: power, 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 JBL BAR 300 has 5.0 versus 4.1 for the LG SLM4R. The output power is different and equal to 260 (overall) W for the BAR 300 versus 420 (overall) W for the SLM4R. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The JBL BAR 300 got our rating of 6 out of 10, and the LG SLM4R 7 for its audio features and specs.
Spotify support is available on the BAR 300.
Only the JBL BAR 300 can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the BAR 300 supports HDMI Audio Return Channel (ARC). Both soundbars have a USB connector. For connectivity, the BAR 300 received a rating of 10/10 versus 6/10, respectively.
App control is available in every soundbar. A built-in microphone is present only on the BAR 300. Soundbars do not have Multi-room support.
Only the BAR 300 has a Dolby Atmos multichannel audio format support. The soundbars do not support the surround sound technology DTS:X. For multichannel surround JBL BAR 300 got a rating of 7, and LG SLM4R 5 out of 10.