How can you optimize the performance and functionality of your home theater system? A home theater receiver will do that and more! It serves as the brain of your system, accepting inputs from your Onkyo TX-SR606 DVD player, cable, satellite or video game system and sending the output to the speakers and TV. Most receivers will also serve as an amplifier boosting the signal to your speakers, and many have a tuner for FM/AM radio. You will find that different brands go by different names such as: A/V Receiver, Dolby Digital Receiver, etc. The one thing they all have in common is the ability to control and enhance all the various components of your home theater system from a single unit.