AV Receivers are at the heart of a home cinema system. There are a various other sources that can improve the sound performance of your TV, but if you really want to experience home cinema then AV Receivers are the answer.
What is an AV Receiver?
Simply put it is the device that switches and connects audio sources. So by connecting every source within your home cinema to your receiver, you are allowing yourself to select the audio source you would like to listen to without any issues.
If you are looking into it from a technical perspective then the receiver does hold a variety of other complex features. For starters, it can connect and switch your VIDEO sources.