All you have to do man, is find an amp that matches or is less then the rms of the sub at 2 ohms... So you would be looking for an amp that is 1x400 watts rms @ 2 ohms. Both of those subs put out way to much power for one Kicker, if you had 2-12's the SPL would be near perfect, it is however 100 watts rms more then the subs would be, but still falls in the 15 percent range.
