i've got an Alpine CDA-9811 in my C2500. great HU, and nothing wrong with it, so im gonna keep it for now. the polk 4x6s that i have in it now have about had it. i blew one of the fronts, and its beginning to drive me nuts. i'm currently running them off of the stock pigtails. i'd like to make an upgrade in the near future, and am thinking about amplifying the replacements. these were recomended as a replacement http://www.jbl.com/car/products/product_detail.aspx?prod=P6452&Language=ENG&Country=CA&Region=USA&cat=MEL&ser=POS would this be a decent amp to push them with? http://www.jbl.com/car/products/product_detail.aspx?prod=CS60.4&Language=ENG&Country=CA&Region=USA&cat=AMP&ser=CSS i plan on adding a single 10" and another amp to push it in the future. any input is greatly appreciated.