I don't know how many of you have noticed the "blog" link on the home page and checked it out. Jim has several very well done discussions, and he just added one I did on crossovers 101. You might want to check it out--losts of illustrations and I tried to keep it simple. If you're interested in this or the other topics, it's worth signing in and asking some questions. Uncle Sam gave me another day off, and we're expecting another 15" on top of the 2 feet that are already on the ground, so I ain't got much to do other than design new speakers and answer crossover questions. And walk to the Safeway.