Q:

How does a home theater stereo reciever work?

A:

Quick Answer

A home-theater stereo receiver accepts signals from different input devices, such as DVD players, game consoles or Blu-ray players. The receiver interprets the signal and amplifies it before sending the signal to different output sources, such as a television or a sound system. Although the receiver amplifies the sound from various sources, the device is used to consolidate and direct audio/video signals.

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Full Answer

The receiver accepts inputs from different devices and allows users to select an output source to route the sound. A receiver's components consist of audio/video inputs for video sources, a preamplifier, surround-sound decoder, power amplifiers and outputs for the television or additional speakers. The audio and video signals follow a straightforward path. The source component, such as the game console or DVD player, transfers a signal to the receiver unit. A user selects the input component that sends the signal to the output unit. The preamplifier receives the signal and slightly amplifies its line level. The receiver sends the audio signal to the decoder and the video signal to the television. A decoder is used to manage the video’s sound-channel, and it sends individual signals to the amplifiers of each sound-channel output. Amplifiers are connected to the appropriate speakers.

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