Well, first and foremost I am into audio, both home and car, big time. My home setup consists of a pair of B&W DM603 S3 hooked to a Denon DRA-697CI receiver. What I want to do isd build a set of bookshelf speakers for use at school or just in general. I want to use the Vifa XT25TG30-04 1" Dual Concentric Dome Tweeter for the tweeter and Tang Band W6-1721 6-1/2" Underhung Midbass Driver for the woofer. What I need is a crossover design, but I have no experience in this area. If anyone can at the very least assist me I would appreciate it greatly.