Something between 1500 and 2000 watts RMS ....watch your gains and tuning if you go with 2000wrms....I use a Hifonics Brutus BX1500 (1500wrmsX1 @ 1 ohm.) Some ppl are running more then 2500+ watts to them but that is usually only for comps.....I would say something around 1500-2000 should be good.
