For residential space audio/visual solutions most often refer to entertainment. This can be a single TV for the bedroom, it can be a media room setup in the family room, or it can even be a dedicated home cinema room with a complete Dolby Atmos immersive experience.
Another important addition to the A/V spectrum is BGM (Background music System). This can for instance allows for the same music track to fill the general spaces of your home which is ideal when hosting events or simply when you wish to add a little extra to the environment at home. The control of this can be as simple as a press of a button in e.g. your living room and you can just easily mute the whole area in case you are leaving the space - everything is customizable.
Likewise it's ideal for when moving the experience outdoor, so that after a nice dinner you can move out for some fresh air where music will be flowing from the outdoor speakers.