crossover design

I'm building the CSS Audio's 3TD-X and was planning on laying out the circuits just like they are on their 3D printed board (see attached photos), and thought it'd be fun to replicate Gabster's crosstalk experiments. I have a small speaker wired to an 0.75mH air core inductor (litz wire , but I...

Is it possible to represent a given passive crossover design as a gain function, like one could do with an active crossover/EQ curve? Assuming of course that we know the impedance curves of the driver that will be driven by it and there is no variation in the crossover component values. In...