I just happenned to be fooling around with my DVD settings one day when listening to a CD/ DVD Audio ...i switched from large to small on the DVD player and I have to say it was night and day. 100% improvement in the bass department. Blew me away. I have my Denon 3805 set to small for my fronts too even though I have tower speakers with a power amp on the lows..
however, I am still using a Panny...the Denon I am sure is better and different with its settings as you can control bass crossover frequency, I can't.. But from what I have read, the bass is pretty much non existant with analog if you leave your DVD speaker settings at large.