I'm looking for an amp to run my single Alpine SWR-1542D http://www.alpine-usa.com/product/view/swr-1542d/default. I need an amp that can run 750 watts at 4ohms and my price range is around 400. Any suggestions? Thanks! P.S. Not sure if this is a double post, my last one didn't end up on the board. Sorry in advance if it is.