make sure its 500wx2 also if ur gonna run to 2 subs, cuz alot of those brand name amps from best buy say 600 w but are only 125x2 at 2 or 4 ohms or some **** and have all these low amp outtages(if thats even a word) for hi's and **** or maybe im a dumbass but just lettin ya know to read all the specs and ****