Kevin, so you are saying that there should be no bass summing with the analog 80hz engaged and using the 5.1 analog inputs? How come when I route my cd player analog ouput to the 5.1 analog input the bass becomes really boomy? The cd player analog output to the cd analog input and using analog bypass sounds great. I have been thinking about getting a pioneer 47a universal player and that is the reason I was experimeting with the 5.1 analog inputs. Thanks for all your input by the way.