Wanna play around with what the crossover is doing electrically? Here is free circuit simulation software that runs on top of Pspice (if you care about that). Since it is a demo version it is limited to the number of components in the circuit. But this is usually more than adequate for crossovers. There is a bit of a learning curve but nothing you can't figure out pretty fast. When you build a circuit, you add a text to identify the nodes you want to probe, then run the AC analysis. It gives both amplitude and phase response graphs vs. freqency.
Micro-Cap
Micro-Cap