that set up is still in work... so i'll let you know when it gets done, lol
but for an 8" midbass driver in the door, i usually run a range between 100-300 hz.... keeps it low enough to feel the puch, but high enough that your mid range doesnt feel like its lacking either... but it all depends on each set up, u kno
as far as the cadence cwm's go... there are better speakers out there... but they really are a great component set for the price... eventually i would love to throw some focals in, but i just cant see myself paying that much for components, lol