The crossover points I would play around with. For the center channel you should also try a crossover point of 80hz. With the surrounds I might go with a lower crossover point than what auddessy set of 100hz, 90hz or 80hz. You might also want to set your M80's to small and try crossover points of 80hz, 60hz and 40hz. Some people prefer to set the M80's to large and like the "double bass" others can find the bass "boomy" depending on the room.

Good luck Adrian \:\)

I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne