The processing of the audio signals in a home theater system is just as important as the processing of the video signals. This audio processing is typically done by a single component, called an audio/video receiver. An A/V receiver combines the functions of three separate components—a preamplifier, power amplifier, and surround sound processor.
A/V receivers are available at a variety of price points, from under $200 to more than $6,000. While all A/V receivers perform similar functions, the price differential comes from varying control capabilities and sound quality. Consider the following variables: