New Polk Amp and Speakers

I just recently bought a Polk Audio D4000.4 amp along with Polk DB6502 component speakers up front and DB652 coaxials for the rear.

I don't plan to use a sub for now but that may change in the future after I hear this system.

My issue is I bought the amp as a floor model from fry's electronics and it didn't come with the manual. The amp settings seem difficult to configure. How can I find the manual online? There wasn't one at the support section.