Home theatre systems use a 5.1 surround receiver to breathe life into the audio system and get high quality sound from the system. It not only improves the sound quality but also enhances the sound tone making it more pleasant to hear. The sound level is generally measured in decibels. This surround sound system provides sound in the range of 1 db to 6 db which means that the sound can actually be doubled. The surround sound system has a number of inputs and output that lets you connect a variety of devices say for instance television. The 5.1 surround sound receiver is very cost effective. It can be considered as the milestone in the history of sound devices. Some of the remarkable features of the systems are enlisted below

• It has a tuner for AM/FM radio. In some devices it also provides features for internet radio and high definition radio.
• It has controls for streaming video as well as audio signals to different devices like the video can be routed to the Television.
• It has a built in amplifier that can send signals to the speakers.

Components can be attached to the 5.1 surround sound receiver is three different ports of which two are meant for coaxial cable and one for optical cable. The level of distortion in the device is kept as minimum as possible. The device is easy to connect and provides not just high quality sound but also easy portability. The entire system also supports the universal serial bus connection that lets the listener to attach his hand held sound devices like iPod or a pen drive and amplify the sound and improve the sound quality.

Some of the features that can be improved in the surround sound receiver can be the remote, features like adjustment of bass and treble can be provided through the remote control. The input can be improved from 6108 to 925. To sum up[ the number of features that enhances the overall sound experience really out do the few short comings of the surround sound system. The best feature still being that it is offered at very affordable price and perhaps that is the reason for its growing popularity.