I got 2 12" MTX Thunder 6000's in a sealed q-logic box and are running them inside the house on a JVC 540 watt home stereo system, But im buying a car in a few weeks and i wanted to push them to their limits, so im looking for the best amp i can find for around 300-400$ preferably Rockford fosgate or MTX which is better? Also i dont care if its a little over 1200-1800 seeing how MTX under-rates there wattage by alot and i got 2 10" rockfords incase i blow them. The rating are on the MTX's are 250 rms single and 500 rms together.