I have noticed right away with new center and mains that the bass has really increased. I do not use the cinema eq function to much now on my kenwood 504 because of this. What I am wandering is with speakers set to small-sub on, receiver crossing over at 90 or a 100, "any one know for sure on the 504" is there still some lower information still sent to the speakers in DTS or DD? I know the same freq are being sent to my new speakers that were sent to my others. Does the more bass result come from speakers and center being much larger and the range going down to 30 versus 80 on prior speakers. Why would this matter If crossover is the same? Just what accounts for this? I would like a firm grip on this.