As the title says. Looking for a little education. I see all the treads about separates and receivers, being a novice I would lean toward a receiver, but I would like to find out about separates so I can make a good decision. Ok, we have amps, I know this one. What about A/V Preamp? Intergrated Amp? Preamplifiers? And for the radio, will I have to buy a tuner?