i am trying to get away from running the 850s full range.i have a anthem statement p2 driving them and i am woried about over driving them with hard hitting bass.i know i could go the FMOD rout to do what i want to do but they dont make a 40HZ version.i wish RDES had a choice of low pass and high pass crossover but unless the new version has it i am out of luck with that.