The stock monsoon system can only give you so much. I tried to do what I can to keep the stock amp and have better aftermarket speakers but at the end of the day I still wasn't happy. The best thing I did was cut the entire monsoon system and go complexly aftermarket. I have a 4 chan Memphis marine amp running my speakers and then a separate amp dedicated for my subs and of course a aftermarket HU. The price you paid for them to do whatever they did you could of purchased a new or used 4 chan amp with that and had better sounding speakers and avoided this situation.