Look here's the skinny on they amps... we could rattle off a bunch of makes and models but what it boils down to is you will 2-3 amps each amp should be rated at a minimum of 1 1/2 X the rated power handling of your speaker based on the ohm of the speaker...
Example
An 8ohm speaker with a continuous 500 w RMS you'd want an amp that can peak 750-1000 w per side.