Do you have a sub woofer? If you don't then just set the x-over to flat or defeat.
If you do have a sub then you'll have to do some tweaking to get the best sound that suites your taste. Usually 90-120Hz is good.
I know the Kappas don't have that good of bass response so if you do have a sub then go with a little higher x-over like 110Hz.
I'm going with Kappa components up front.
Hope that helps.
Brian
