Hey there guys,

I have a HTPC and a Onkyo 606 connected to a 9.5 front speakers a 9.1(back speakers) a CS(central) and a SW 150.

How much crossover should I use in my subwoofer? In the back I can choose from 35hz to 85hz

assuming you are using bass management in the 606, you should defeat the xover in the sub, or at least set it as high as it will go...

So if I have bass management on I should set my subwoofer to 85hz?