I recently switched from a Sony DE series receiver to the Denon 3801. Before the switch, my Sony Sa-WM40 subwoofer was loud and boomy. Sucked for music, but nice for HT. Well after plugging it into the Denon, it is 180 degrees opposite. It now seems a little tighter, but man has it lost its balls. Even on the test tone it sounds like 12db lower than the other speakers. I have a standard Rat Shack RCA interconnect. It plugs into 2 holes which appear to be the sub preouts in the back of the Denon. On the other end, I had to use a combiner to plug it into 1 hole on the subwoofer. Note this is *exactly* the same way it was plugged in to my Sony receiver. Anyone have any suggestions? Edit: room placement has not changed either, so it isn't that.