I've had nothing but Bose for years so please excuse the naive question. Can most of the modern receivers also be used for sound processing and feeding (as in a true pre-amp) multi-channel amplifiers? So unless I'm laden with money, it's not necessary to buy the highest wattage receiver around if, at some point, I will use it with a separate amp. The reason, then, to upgrade the receiver is because newer models handle more/newer audio/video formats? If so, then shouldn't one invest in a quality amplifier as it is not as susceptible to becoming outdated as the receiver? Please steer me straight if you will. Thanks.