Hi all, Hoping someone can help. I want to build a centre speaker for my Brother in Law to blend in with his main Hi-Fi pair (Accoustic Research) I have all the tools and skills to make it, other than either the design itself or the software to simply calculate with the emphasis on the word "simply." We have sort of decided on a tweeter/ 2 midrange setup. Can anyone point me in the right direction for either an easy to use software package or a completed design? While i'm beggin' ......... drive units, don't want to spend a fortune and stuff at places like Wilmslow seem to be exorbitant.........anyone have any recommendations? Thanks.