Excellent sound quality with impressive bass. I did not expect much from these because of the price but I was very satisfied with the quality of the sound. I had pioneers then kenwoods in the rear deck in my grad prix and these speakers are miles ahead of of the others that blew out when i pushed a lot of volume to them. Had these for about 2 months and they show no signs of distortion when they are cranked up all the way. i would not recomend an amp for these get something that can handle more power, these are excellent factory replacements or replacing $hitty others.
I give these a perfect score based on other speakers in the price range like Boss, some Pioneers and Sony's these are the best i've heard. Nice bass and highs and DON'T distort.
Awsome speakers they can handle a lot of power for what they are rated at but i would not reccomend hooking an amp up to these. All I did was replace these with the factory speakers in my car and i tell you they are a definite improvment. The highs are much clearer and the bass has a nice thump to it. For 59 dollars you can not go wrong.