Best 6.5" speakers?...MB Quart, Infinity Perfect, JL Audio, Polk?

Hands down, Boston Acoustic are the best of those listed, then MB quartz, then JL. If you are considering any of these, then the others are a waste of your time. Good Luck!

I buy the speakers that sound good to me an my ear..That is what you should do. Brand is almost unimportant since all the brands you list are all great. It is you and your ears that you have to please not the speaker company.

different ppl..diff opinion u have a limited amount to spend therefore heres sm help mb quart is really good but r too expensive,not all mb quart are good mostly higher models will REALLY impress u. infinity are all the way good, in price also,not good as mb quart polk audio can be compared to infinity,i dont kno about there price now according to your pocket the best speaker can be decided only by u after listnin but all in all ,neither of these brand will dissapoint u coz the more u spend will get u near to almost perfect.gud luck

well, i'm glad to see your venturing out of cirut city and best buy. now let me say this. the Quarts will blow all of those away. however with that said, have you checked out the Boston Pro series? if you can hear them, they sound better then the quarts. however there more expensive. so see if you can hear them, then hit ebay. there worth the wait to hear. oh, and if you think JL has the "best subs known to man" try checking out RE audio XXX, Boston G5, Pioneer 5000SPL, Imange Dynamics IDMAX, and about some others that i just dont have time to list/think of. shop around bud, thats the key to finding great car audio that you like. good luck.