I am new to car audio and need help with amplifiers. I am getting ready to buy a pair of subs. I need to know what kind of amp to buy. I dont know what subs Im getting yet, but I'll just give an example. If I got two subs with 800 wat peak power, 400 RMS, with 2 ohms, what kind of amp should I get to power them the best. And tell me why the amp would be the best.