I'd remove that "impedance eq" , I don't think you need that on the tweeter. Also, that L pad takes a lot of the signal. Think that electricity will take the easiest path, and between a 4 ohm resistor, and a 4 ohm tweeter, I think the easiest path is the resistor. (The tweeter is a coil, and coils offer resistance to high freqs)
Try without L pad and without eq network, and tweak the L pad from there, in small increments.