I would not recommend Infinity speakers of any variety. Tweeters are harsh, and midbass is lacking. I understand their subs are pretty nice, but they haven't made good full range speakers for quite a few years now. Check out Polk, Boston, etc... Companies that specialize in making speakers.
I am also looking into alpine type r's for the price and reviews they seem like a good speaker....was looking at the boston's as well but with a bigger price tag, don't know much about them. Anyone hear anything on MB Quart? Polk's are not that much more than Alpine's Type R, has anyone had these before? Do you have a preference of which is better? Seems Polk has a little more RMS power.....referring to 6.5 components.