AV receiver as the central control unit in the home cinema
Connections on an AV receiverFor example, you can connect both your projector and your TV to an AV receiver with multiple outputs and inputs at the same time. On the input side, you will usually find a Blu-ray player, a satellite or cable receiver, and increasingly often a streaming stick from Amazon or Google. If you want to use your TV with a streaming stick during the day, simply select the corresponding inputs and outputs on the receiver. The picture is then displayed on the TV.
Another application is sound reproduction in the home cinema. In addition to the reproduction of Dolby Surround with 7 speakers and a subwoofer, which is now considered almost standard, modern AV receivers offer three-dimensional surround reproduction of audio signals such as Dolby Atmos or Auro 3D. For 3D sound, 2 additional speakers are installed on the ceiling of the room. You also need a suitable Blu-ray player as well as Blu-rays that support Dolby Atmos or Auro 3D.