Can somebody please help out a poor old oil-patch engineer here? I've read dozens of these cross-over design debates and most of it goes over my pipe-and-pumps head (if it ain't Ohm's Law it's beyond me). But what I conclude is that all these debates are eliminated by using an active crossover - no more worries about interaction of the load, etc... Am I way out in left field here? Can it really be that simple? Because if it is, people seem to be working awfully hard to perfect their buggy whips when a new set of sparkplugs would produce better results.