LG GX vs Samsung Q990B comparison definitely makes sense. Based on our rating, GX has a total rating of 6.5 out of 10 versus 9.8 for Q990B.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the LG GX has 3.1 versus 11.1.4 for the Samsung Q990B. The output power is different and equal to 420 (overall) W for the GX versus 656 (overall) W for the Q990B. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The LG GX got our rating of 7 out of 10, and the Samsung Q990B 10 for its audio features and specs.
Spotify support is available on the Q990B.
Only the Samsung Q990B can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The LG GX has 1/1 HDMI inputs/outputs versus 2/1 of the Samsung Q990B. The HDMI Audio Return Channel (ARC) feature supports both devices. Both soundbars have a USB connector. For connectivity, the GX received a rating of 8/10 versus 10/10, respectively.
App control is available in every soundbar. A built-in microphone is present only on the Q990B. Soundbars do not have Multi-room support.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review. For multichannel surround, each of the opponents received 10 points out of 10.