Complete home theater system

Many of us love to listen to music. Whatever sound system we are using nowadays is not developed over the night. While looking into the past we found a name David Edward Hughes for his preparative carbon microphone in 1875. He never sought a patent for his invention. Throughout the 1870s and 80s, the loudspeaker device existed, but the true moving-coil loudspeaker was invented by Oliver Lodge in 1898. A big breakthrough happened in 1906 when Lee De-Forest invented the first device that was capable to amplify an electrical signal. He named it Audion. The first documented example of an electric power amplifier system being used to amplify speech and music at a public event. And it was on 24 December 1915 at San-Francisco City hall, when Jensen and Pridham’s Magnavox system was publicly demonstrated.

Continuous improvement was still going on for the sound system. In 1990, Dolby proposed a five-channel surround-sound scheme for home theater systems. After that, the digital era had begun and digital audio systems were rapidly replacing analog sound systems. At present home theater system is a result of this evolution. Now we are going to introduce this gadget that makes the sound system alive.

What is a Home theater system?

It is difficult to define the home theater system in a single line. In general terms, a home theater system is a combination of several electronic components designed to recreate the experience of watching a video or movie in a theater. For example, when you watch a movie on this system, you are more immersed in the experience than when you watch one on simple or common television.

Units inside this system:

To see how home theaters do this; let’s take a look at some important units.

  1. Audio-Video receiver
  2. Speakers
  3. Input devices
  4. Output devices

Audio-Video receiver:

This unit is commonly known as an AV receiver. It is the hub or central point of the home theater system. The Audio-Video receiver is the electronic component that controls and drives input signals and sends them to output devices. And it is being done by several CMOS integrated circuits, micro-controllers present on the circuit board of the AV receiver.

AV receiver of home theater system

AV receiver of home theater system

The AV receiver per