LG S95TR Owner's Manual page 12

Speaker sound based on input channels
Input
AI SOUND PRO
Sound customized with artificial intelligence
2.0 channels
5.1 channels
7.1 channels or more
7.1.4 channels
STANDARD
You can enjoy optimized sound.
2.0 channels
5.1 channels
7.1 channels or more
7.1.4 channels
12
Rear speakers not connected
DTS
Other
Sound Effects
Output
Rear speakers connected