i have two cadence wild beast 12s 700 rms 1400 watt peak. the guy at best buy said this was a good amp and theyd slam : a kicker dx500.1 amp rms is like 530.

is this gonna make my subs slam or not?

 

eh, i would send a little more power to them, but yeah it should get them going fairly well. but the install plays a HUGE role on how your subs will sound. do you already have them in an enclosure?

 

the rms on kicker amos is underated this should make those subs hit pretty good but like AscendantMax said all depends on install make sure you use a minimum 4 guage kit for that amp and have a goood ground... Oh and are you using an aftermarket radio or stock?