bruin, I would hook the speakers up as typical speakers, and use the 'hi level in' setting on the speaker panel. In the AVR, set the speakers to 'small'. This lets your dedicated subwoofers handle deep bass. The built-in speaker subwoofers can do bass, but it's better just to offload that to your other subs. The built-in subs aren't that powerful as subs go, so they are better used for mid-bass only.