I have a kicker L7 12' and im trying to decide if i get the 400.1 will it be enough watts to get it to sound good, or should i spend $75 more and get the 750 x1 amp, im running this on a sealed box and i have a 1 farat RF capacitor, i heard these speaker ask fo a lot of watts, i want it to sound good and dont want to regret anything, whats the best way to go, or what are you guys running on your L7's?