^^^ thiswhy pay $700 for a 1500w amp? You could strap a pair of AQ1200D's or an American Bass VFL150.1 for 3k rms on a pair of American Bass XFL 12's for @ the same $ and come out with far better amps and subs.
PASMAG | PERFORMANCE AUTO AND SOUND - American Bass XFL1244 Subwoofer
American Bass - VFL 150.1
The subs and amps given on this thread are subs that are under rated, these are competition quality subs, the amps given here have been used and tested by many many bassheads except for audiopipe apsm 2k since this is brand new but the apsm 1500 held a very good reputation when clamped (meaning wattage produced is what it avertised)
