i did some research on those subs, I personaly wouldnt go over 500 rms, if you want your subs to last
also found this
"I have a pair of the 12in dual 4 ohm Mtx thunder 8000. they have tight bass due to the excursion being .49in...I ran a Cadence Ultrashock Amp to them. 1500 rms max and did...