Summary: Much better quality than name brand car audio speakers and cheaper! These little 6.5 speakers sound as loud as my ks 6x9 kickers and produce almost the same bass! my soundstream 6x9's sound even better!
Conclusion: I own 2 set of these and must say I'm pretty impressed. Never owned Soundstream products before but this time I bought a whole set of Soundstream goodies. These speakers have a lot of punch and are crystal clear. In my doors they already make a lot of things shake. Would recommend.