passive crossover helpppppppp

im building a 2nd order two way crossover, but the woofer im using has a high peak at 1.2k and im building the crossover at 2k cross point. im new to building my own crossovers. so im looking for help on a notch filter or something to flatten that peak.
the peak is about 5db high.
thank you
jerry

Passive Crossovers, Capacitor and Coil Calculator help at all?

You could try a notch filter to flatten the peak.
you need a 3-way speaker system so that the midrange speaker operates at 900Hz and up.