How many watts does it take to make a cadillac thump?

How many watts, and what is a good brand a model of subwoofers and amp for a good price.How many watts does it take to make a cadillac thump?alpine or kenwood sound systems and you need six speakers tweeters in the front two ways in the back doors and 6x9's in the rear and in the boot you need two 12inch type R subwoofersHow many watts does it take to make a cadillac thump?500-1000 you can make some thomp with 250 watts. but if you want to shake.go for around 800. try mtx amps@subs