I want to get two 8 inch polk momo 2804's for my car. I cannot figure out what amp to get for it. Also, I'm having trouble understanding what a dual voice coil is. (I already have 2 12's but they really suck, and I want something that has a nice clean hit but nothing too insane.) here are the specs of the subs: Overall Frequency Response 26Hz-200Hz Nominal Impedance 4 ohms Minimum Impedance 3.3 ohms Power Handling (continuous) 200 w Power Handling (peak) 400 w Efficiency 85 dB Voice Coil Diameter: Driver 1-1/2" (3.81cm) Magnet Weight 25.00 oz.