Raju

Well although I am listing to music since I can recall but I am just entering in to the world of Audio! Now I want a reasonable setup ($600 limit) by next weekend! Questions are very basic 1. What is difference between a amplifier and A/V receiver. Why video signal are connected to a A/V receivers. Do A/V receiver process video signal ? 2. What is difference between Promedia 5.1 + Promedia DD 5.1 setup and a equal wattage Home Theater system. Is sound quality changes ? 3. What would be a better setup Promedia 5.1 + Promedia DD 5.1 OR Cambridge Soundwork speakers -Ensemble IV + JVC RX8010 A/V Receiver ? for music and movies Hope somebody help me take correct decision!