http://www.onlinecarstereo.com/CarAudio/p_29221_Rockford_Fosgate_P2-2X12.aspx?utm_source=pricegrabber_shopping&utm_med ium=Product_Feed&utm_campaign=pricegrabber_shoppin g_Price_Comparison

What sub could power those subs?no too expensive try and keep it under $140
thanks