Maybe that's why the Maggie MG1.6 sound good. Crossover consists of one inductor and one capacitor for the woofer, and one capacitor (implemented as a parallel group) for the tweeter. And NO RESISTOR unless you choose to insert one. This also made the cost to upgrade using top of the line components quite reasonable.
Of course Magnepanar designs and makes their drivers, (perhaps excepting the ribbon) and can play around with the driver designs to get the results they want. Most speaker system manufacturers have to make do with drivers that are designed and made by others, and then try to achieve the sound they want by complex crossover networks.
PS: Except for tweeter crossover (2000 Hz and up) I am a firm believer in low level electronic crossovers and biamplification.