Sony Bravia A80K Audio Settings



The A80K has decent in built speakers; the entire screen is a set of speakers.  From the spec it seems that there are 5 channels:
Audio Power Output: 10W + 10W + 10W + 10W + 10W
Speaker Configuration: Actuator x3, Subwoofer x2
It supports formats Dolby Audio & Atmos as well as DTS surround sound.

Please could someone recommend the best audio settings within Kodi for this TV.

Edit:  I assume that I should not switch on passthrough as the audio is not being passed to an external device?

TIA