Well in support of what
@sarumbear is saying whenever I've worked with crossovers in miniDSP for my sub & speakers the roll off they create is a lot steeper than what we see with the woofer in the following (unless the measurement of the woofer is slightly contaminated by the tweeter and can't be fully trusted):
There's no "exponential" roll off happening there with the woofer, it's just at gradual same slope decline almost. The crossovers I use in my miniDSP for sub & speakers is a 24dB something or other (the standard default crossover used in miniDSP, is it Linkwitz-Reilly) - yeah and the roll off is really sharp (
really sharp) on those in contrast to what's happening with the woofer above. Mind you the tweeter roll off looks more analogous to a crossover though, so maybe the woofer measurement is contaminated but the tweeter measurement is maybe more accurate, I don't know (unless the tweeter just falls off a cliff naturally at lower frequencies without any crossover intervention).
EDIT: but Amir did say that there was a passive crossover active within the speakers at all times regardless of whether bi-amping or not. So there's obviously somekind of crossover already being applied, which is why it isn't included within the EQ filters for the speakers:
So I think the woofer measurement is contaminated, unless the passive crossover already included in the speakers chooses to roll off the tweeter more severely than the woofer.