The crossover is 2nd order acoustic at 700 Hz for the Woofers and 4th order acoustic at 3000 Hz for the tweeter. The impedance minima is 4 ohms at just above 100 Hz. All resistor values below 1 ohm are the DCR of the associated inductor, or a standard value resistor with the DCR added in (i.e. 2.13 ohms). All inductors are Jantzen 18 gauge. The mid woofer and tweeter are connected out of phase to the woofers, and good phase nulls are modeled when they are reversed.

The dips at 3K and 6K are diffraction artifacts, but they will disappear by 10 degrees off axis. So for the smoothest response don't aim them at your sweet spot, but maybe straight out into the room, so you are listening slightly off axis. Decreasing the value of C2021 would have the effect of filling in the dip at 3K, but unfortunately it also raises the peak just above the dip. A 10 ufd capacitor was chosen for C2021 since dips are less noticeable than peaks, the lesser of two evils.

Off Axis Response for sealed Wtmw with 9.5” Baffle