thanks!!right now, the sub is a D2. Its a "Constant power" amp so it is still doing good.
that being said, when i get my NEW SMD 15, it will be a D .7 or "D1". (Same thing)
so is your sub wired to 1 ohm???
Okay so i have a yellow top for starting a mechman 320 amp alt an 3 xs 3100 coming going on to rf 2500 an to t400.4 s is three 3100s going to be sufficient