I had an old 12" pioneer in a truck box hanging around. I was able to fit it in the stock location to downfire, behind the seat. It actually sounded fairly good in my roadster. I am wanting something a lot better quality and more power.

What 12" sub would you reccommend for a truck box? I have a mono block amp that is 850 watts at 2OHM so around 425RMS or lower. I have it paired with my Kenwood DNX-7100.

Thanks for the input.