Due to the ever increasing advancements in technology the field of electronics has a lot of new products to present. Gone are the days when people would crave to go to the movie theaters. Now after an exhausting day at work more and more people prefer to enjoy a good movie at the comfort of their home. This is where home cinema  theater systems make their appearance. Just have a high definition TV, a surround sound speaker system, perhaps a few comfortable chairs and you are ready for a relaxing and rewarding night in.

With the surround sound you will get even more the feeling of being into a real cinema theater. Usually, the surround sound components include two speakers, in the least, in the front of the viewers and a couple of speakers at the back or the side of the room. Current formats usually divide the various sounds to different speakers according to sound’s onscreen instigation.

What the receiver amplifier does is to take the sound from the different components and  reproduce them accordingly. The receiver usually consists of audio and video audio and video inputs, preamp, a surround-sound decoder, power amps for every speaker and outputs for the television and speakers. The receiver takes the signals from the various components, such as the television or the DVD, and after you select which signal you want to feed the signal is given to the selected component.