I want to upgrade my home theater system which i've had for about 7 years now, I want to upgrade to a blu-ray player also. This system i have now is a Sony out of the box home theater system. I've always heard that getting separate components is the way to go to get the best sound. I've seen a few systems on Amazon like the Yamaha and Onkyo systems that includes the receiver and speaker package but not a blu-ray player. How good are those systems? I'm thinking of buying the receiver speakers and blu-ray player all separately. Would that get me the best sound?