Ive had all price ranges of speakers in my car, from the very expensive, to the very cheap flimsy ebay build quality ones, and when I bought my new car I decided that im going to do it right first time. So after carefully consideration and measurement of my 1.4 fiat panda 100 I decided to purchase 2 of these subs to go in 2 ported boxes. Let me just say I have never looked back since, they are very loud, very clear and provide very tight bass. Ive had jbl before and am so glad that I came back to them. Probably not going to be winning any spl competitions with them but for standard car use they are probably some of the best that I have ever owned.