I have a Panasonic head unit, JL audio speakers, 10" infinity reference sub in a mtx thunder form box powered by a pioneer 400w class D mono amp and it sounds great. yeah its not the loudest thing ever but given the airspace being stuffed into a single cab with the seats all the way back, it was way louder than I expected. Through in the fact that I got the amp for $152 new and the sub and box on ebay for $157 shipped, and it sounds really good! lol does anyone know how to post pics