@blisshifi, Thanks for the explanation!
You are saying that the Borresen X3 speakers have two crossover points, but are two and half way not three way. Got it. To me a two and half speaker seemed a little bogus.
FWIW,I own a pair of two way speakers with one crossover point, @ 1000Hz with three drivers in each speaker the manufacturer says they are two way because they only have one crossover point, regardless of driver quantity.😎
Mike