For the dual 2 ohm sub, the best you could do with that amp is 375 watts @ 4 ohms. By wiring the coils in series. If you were to wire the coils in parallel, The amp would be running below it's lowest stable impedance.
If you were to get the dual 4 ohm version, you could wire the coils in parallel. This would give you a 2 ohm final load. This would be the only scenario where you would be powering the sub to it's potential.
