i got 2 12" alpine type r's with an audiobahn a2200hct amp. kenwood in dash single din, custom fiberglass sub box. i only have the amp 1/4 turned and im herd from blocks the type r's pound
Memphis sub and Memphis m-class 400 amp in a box, hits very nicely, not as hard as it did when I still had the stock amp but still good enough for what I listen to.