I have a Alpine Type-R 12 in a ported box and am thinking of getting a new sub. I thought about the RE SE 12 but they dont make them in dual 2 ohm voice coils (**** it!). Now I am thinking about a Diamond M6 mark 2 12. I know this will give better sq but will I be giving up SPL??? Also, any other good subs around the $200 price range?