Just look for amp that is minimum of 1200rms at either 4ohm or 1 ohm, with low THD.
I have 2 1242d's running of a Orion 2500d at 4ohms works very well and when I do upgrade subs I'll have power to run them //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif