Wilson benesch

A different perspective on crossover design... WB builds their drivers to have inherent output rolloff characteristics in order to minimize required crossover components. The requirement of only a single capacitor for the tweeter crossover and running their woofer directly helps contribute to the ultimate level of transparency their speakers provide. With their driver designs these minimal crossovers can be used without risking damage to the drivers or lobing.

All drivers have some degree of natural rolloff which you can see if you look at their frequency response plots. With good engineering and computer simulation driver design engineers can tune the rolloff characteristics by varying different aspects of the design that affect resonance and damping among other things, including tuning of the driver's spider and magnetics. A simpler crossover with fewer components has many benefits, but it has to be supported by appropriately designed drivers.