Hope to find some good deals in the classifieds, and get some useful info on box designs. Currently running a DD 9512i (.7 coils) on a DD M1c. Just under 5cubes on the box tuned around 38hz. Working on another M1c amp to put on the sub, all in a 92 Buick lesabre for now till i find a SUV or something with fold down seats at least. Hard to get the sound out of the trunk on lesabres it seems.