Summary: In general, I love this system, powerful enough except the subwoofer. It is kind of weak because I don't hear much low earth shaking bass even I turned it to maximum volumn. The manual says to set it at "THX" position, if I do that, I will almost don't hear any bass. I used "Animusic" BD to test the system. I don't know if I got a lemon subwoofer or it is just like that. Hopefully someone can tell me his experience with this system. So I only give 4 stars.