if you are running at least 15 volts stable the gp3000 will do just under 5kw daily at 1 ohm. on 14 at .50 ohms it will defiantely do 5kw but i wouldnt do it daily unless your box rise is at .7 or higher. you can strap 2 of them for 6 kw daily at 2 ohm each. i sell em for 560 bnib.