The real power behind any home entertainment system is the Audio & Video Receiver, or AVR. Your AVR holds your system together by powering your speakers, sending discrete signals to your subwoofer, and controlling the audio and video components that make up your system. With some effort you can find a cheap AVR that will accommodate all of your electronics--usually off of one universal remote control. On any modern AVR, you will be able to connect most, if not all, of your home electronics. There should be connection ports for your television, CD player, DVD player, turntable, tape deck, and perhaps even your video game system or computer. You can find a cheap AVR that may offer fewer ports or a more expensive one that offers multiple ports per accessory--ideal if you happen to own more than one DVD player, for example. High quality connecting cables can improve the performance of any receiver, so if you've opted for a cheaper AVR, you can upgrade your cables to improve your home theater. For your television, VCR, CD player, and tape deck, gold plated RCA cables will deliver the highest fidelity sound. For digital sound from a DVD player, SACD player, or video game system, fiber optic cables provide crystal clear digital to digital connections and at their best can create cinema quality surround sound. Home entertainment enthusiasts like to upgrade often with each new technology that becomes available, so you may be able to get a state-of-the-art cheap AVR used. These AVRs are usually kept in pristine condition and will perform to the highest standards.
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