i have an enormous trunk( could fit 4 15's if wanted too) what would be the best box for deep clean bass
If you want, deep, low, rumbling bass, go with a slot ported box. A friend of mine has a dual slot ported subzone box with 2 12w6v2's in an explorer. I think he said it hit 142 db. Not for sure though. If you want tight, accurate bass you can go with a sealed box. Also, I would say to go with 12" as compared to 10's or 15's for all around performance.