been rocking my ppi p600.2 that is in the first post for over a yea now without a problem. plenty of power and small too.
http://www.amazon.com/Precision-Power-P600-2-2-Channel-Amplifier/dp/B005KU7KEE/ref=sr_1_1?s=electronics&ie=UTF8&qid=1434038937&sr=1-1&keywords=ppi+p600.2