there are some things you have to keep in mind when wiring up multiple sups. if you wire them together on a mono you will not have 2 ohms output impedance. it will either be 1 or 4 depending on how your wiring them. If you can find an amp that can operate at 1 ohm you will get most power that way but those are a bit more expensive. I would say that wiring up the 12s in SERIES will make them 4 ohms and you will be close to full power with the subs. most the subs can handle together is 1500 RMS and the amp will be able to deliver 1250. there is nothing wrong with slightly underpowering your subs and will actually help protect them. with that setup you should have a great system that bumps great! for wiring info i found this diagram to help show how to wire them.
http://www.djzone.net/pg/0008/graphics/diagram3.gif
only difference is your subs are 2 ohms and will total 4 ohms. any questions just post them in the comments of this question
http://www.djzone.net/pg/0008/graphics/diagram3.gif
only difference is your subs are 2 ohms and will total 4 ohms. any questions just post them in the comments of this question