The Volti Rival also allow crossover adjustments through resistor changes:
https://voltiaudio.com/new-rival-crossover-adjustments/
looks like not necessarily improvements but rather adaptations to a room and/or user sonic preferences.
Modifying Crossovers
I just read a post about changing resistors and caps in the new Borresen X3 speakers. I am curious why there is interest in changing the components in a brand new speaker. I also am curious if it would make them better than why didn’t the designers put a better component in the first place. Just a thought and scratching my head. Have a great day.