Most of us that chose separates did so because of the sound quality we can get from more powerful amps. Another great advantage is that the systems overall are more flexible to upgrade. With a high powered amp I can upgrade my speakers without worrying about whether it will be able to handle the new loads. Also I don't worry about mixing and matching impedances so much, because I know the Outlaw amps are "all channels driven" and generally outperform their specs. That is not generally true of receivers, and when it is, they tend to run hotter than I like. All that heat in the same box as all those electronics means premature failure down the road.