I HAD 3 CVR'S 12'S RUNNING OFF A RF 1000BD AN IT BUMP. THE 12'S R 400 WATT RMS SO JUST GET AN AMP THAT CAN POWER IT NOT UNDER POWER IT OR IT WON'T SOUND GOOD. {RF 1OOO, KICKER 1000, JL,1000 MEMPHIS 1000, ANY GOOD BRAND, BUT HAS TO BE 1000 TO 1500 WATTS