Yes.
But the saving grace is, the Focal crossover probably protects the woofer and has your "real" HPF (signal to the midrange) somewhere around 100hz. No reason to go under 80hz if you actually are full active, it wont help your response @50hz or whatever you think you're going for.
I set mine at 220hz when I ran 4way with 8" mids also, and set at 80hz in the head unit but also run passive with my CDT 560 xover.
Buy a better 4chan amp, your components will thank you. JL amps are not "going big" IMO.