You can look at Audiopipe 3000 watt amp it is 2 ohm stable, you first need to give a budget. You wont find anything cheaper for the power you want, plus it does not take 3000 -4000 watts to push a BTL. The recommended rms is 2000 watts and if you dont know what your doing then stick with that, just cause you see someone doing something doesnt mean you need to unless you want to damage your new subwoofer. Your also gonna need to put some money aside to upgrade your electrical or your gonna have even more problems, I hope you thought this system out ahead of time instead of just buying the sub with the most rms you can. If so this will be a major fail especially if on a limited or small budget