1st order crossover?

The speakers I have, have a 2 inch dome driver that has crover points at 1,000 and 2,000. In the owners material and set up a lot of attention is given to phase and time. Each driver is in it's own cabinent and a measuring device is used to align each cabinent after measuring the seating position from top of sub and floor to ear distance. Can the crossover points for that 2 inch dome be 1st order "6db per octave" when it is not even covering an octave. It has been said that drivers for 1st order crossovers have to cover such a wide frequency range. That is not the case here. Hope to learn a few more things on 1st order crossovers. Thanks