FYI I called denon customer support to ask about the LFE+main setting....

I told the guy on the phone that I had my crossover set to 60 hz and my fronts set to small, with a sub setting of LFE+main. He said he suggested I change my crossover to 80hz because at 60 hz you risk voices being sent to the subwoofer???!?!?!?!?!?

I decided not to try and clarify the LFE+main questions with this guy and just hung up.

Apparently denon customer support reps are idiots...

-David