2 R F power hx2 12" what amp?

im new to this so be gentle lol. im getting ready to build a sealed box for my hx2's and im gonna need an amp. i bought them off a buddy and dont know ne of the specs neither does he, it says 2000 watts on the magnet, im not sure if this is max or what but im sure u guys know alot better than me. i was looking at some hifonics, ma audio mono amps an they seem to have good prices.I would like to get one in the 400$ range