I have an integra with 6.5's all the way around and wanted to replace all 4 speakers so I went with the Polk db650's. I am running a Kenwood 528 head unit which says 50x4 but is most likely like what? 10 rms tops? My question is if I get an amp how much power should I put into each speaker without blowing them? Because I may be imagining things but it seems like the bass from the head unit is pushing the limits of the speakers right now. It seems like if they had an amp to them they would just blow out of the frame. Of course I am a novice and have no clue what I am talking about so this is why I am here. any help would be greatly appreciated.
also: would an amp make that big of a difference in sound?