Dr. Crankenstein?
 

Hey all, I've recently come into a pair of Dr. Crankenstein 12 inch subs. I'm fairly new to the car audio game, and so I was hoping y'all could help me figure out the specs because I have to buy an amp for them, and I have no idea which type of Dr. Crankenstein's these are. I'm going to attach a picture, and if y'all could help me figure out what type they are and if you know the specs on them it would be greatly appreciated.
Sincerely, Newbie.