Best answer by Ken_Griffiths
My Sony TV and non-Sonos Home Theatre are exactly the same. The industry really needs some kind of 'standard' in place as TV audio can vary from a quiet ('can hardly make out what anyone is saying') whisper, to a very loud ('made me jump') bang, with the volume controls fixed.
It’s a damn nuisance sometimes, but not Sonos' fault. IMHO. A bit of tinkering around with TV/Beam EQ/Night Mode/Speech settings etc; can often result in some degree of happy medium being found, but then again, I still like to keep the remote control and volume adjustment within easy reach. Same goes for my Sony HT system too.