stephens30228
10+ year member
CarAudio.com Elite
I ended up trading my DD9512 D4 for a RE MX 18" D2 in mint condition, I am fairly happy with the switch.depends on which subs, it does not compare to any dd subs as they are for a different purpose, the owner of fi created the re mx but he has nothing really to compare its like a cross between the fi q and btl, the sundown z series would be the closest to match it, but again we are comparing an underhung motor to a standard setup. the mx is a monster and an amazing find as they are getting hard to find like the sx's