Volume very low through television

*** edited with more info as requested ***

Using previous version (16) on android 6. Volume on kodi and box turned up to max but on tv comes out very quiet.

On other android media player on box volume is much louder (like tv volume).

Is this a known issue, is there a fix (if yes I’m a novice kodi non-tech head so simple instructions please).

Source of files = micro sd card plugged into box

box called – Mbox

TV = panasonic – bought maybe 2 years ago

debug log – sorry no idea what this is or how to obtain

Your advice gratefully received.