Is my Rockford Fosgate setup right?

Ok, I have a Rockford Fosgate T600-4 Watt 4-Channel Amplifier and (2) P3SD212 12" Punch P3 2-Ohm DVC Shallow Subwoofer. Is this a good setup or bad? I know if bridged it will be 300 x 2 but isn't that going to be at 4 ohms? I don't want 4 ohms and my subs at 2 ohms. they are already being under powered I don't want to FURTHER under power them! What would you suggest I do? Buy a new sub?