i have blown my old fosgate amp and looking for a new one. the sub is one 12" infinity 120.3dvc

here are the sub specs: http://www.crutchfield.com/p_1081203...ures_and_specs

says 300 rms and 1200 max rms, its dual voice coil and impedance is 4 ohm. since its a dual voice coil does that mean its wired for 2 ohm? or should i still be looking for a 4 ohm amp for this sub???

also ive been looking at a rockford fosgate 250a2 amp when bridged will give 250 watts rms at 4 ohms, will this amp be a good match up?