How many capacitors should I use and why?

Hello guys..planning to upgrade the crossovers in my Magnepans.I am about to order the capacitors and inductors.What I need to know ..are there any benefits from using mutliple capacitors to achieve the correct value.Or would it be as good to use one high quality capacitor of the correct value. Please explain the benefits/negatives of each . Also what are the benefits/negatives of using a small bypass capacitor with one capacitor of the correct value?
Thanks guys for any and all comments.

Showing 1 response by zoya

The reason to use a small value bypass capacitor across a large value one, is that while in theory for "ideal" capacitors you add them together when connect in parallel, real capacitors work differently with different frequency. Like big value capacitors a good at storing energy, but not good at filtering high frequency noise. So for ideal world you don't practically change total value by adding 10pf to 1micro-f - but each capacitors performs its own function: 1 micro-f will work as a low pass or high pass filter (depending on the L or R connected to it) and 10pf will bypass High F noise.