if i get a 1600 watt rockford fosgate amp...what subwoofer would be best?

[Mario]

i want a subwoofer that hits hard!! i want a lot of bass, but space is limited so one sub would be nice, i want to know what brand what size and wattage, and if i need two subs then tell me that, since space is limited i would like one 15" sub or like 2 12" in shallow mount subs. any ideas?

[The Doctor]

1 L7 15" dual 2 ohms
1 fi Q 15" dual 2 ohms

those are your best bet for maximum wham! but i use a hifonics bxi2010d, and diamond 1000.1 amp.