My setup is CD and C10 direct in to the speakers, I have played a movie through them and it was very quiet which would require the volume to be upped a lot.
Looking at your setup you appear to have 2 Gibraltars?!? Would that be taking the low frequencies away from the 5500's or supplementing them?
My setup skills are stuck in first gear, but 'supplementing' is my understanding. ie the 5500s aren't throttled back at all.
I think
your setup could use some guidance though if the clipping light is blinking on at 70. Why not put up a new thread & see what advice comes your way? Unless you've got your DSPs inside tea chests I can't think why they'd struggle at such a 'modest' setting. When you say...
I have played a movie through them and it was very quiet which would require the volume to be upped a lot.
That suggests that something is wrong somewhere.
Apologies if I've wandered OT here.