I bought a set of these Kappa's for my dash recently. They might fit your price range. They're on sale for $60, from $150. They are 90$ off because they are last years model. I like them. Very crisp highs, and you can adjust them to be +3DB higher if you want. These are definitely not for bass. But you're going to be putting in a sub anyways, right? This is my second set of them though. I got a bad speaker in the first set. I haven't had any problems with the second set. These are 55 watts RMS, so if you ever wanted to add an amp, they could take it. You'll need speaker adapters though, and have to do a bit of cutting in your dash, but no biggie. Read the reviews for more info.
Infinity Kappa 52.7i 5-1/4" 2-way car speakers at Crutchfield.com
I aslo got a set of the 6.5" 63.7i Kappas for the Sound Bar while they were available and on sale. (Again, because they're last years model) It doesn't look like Crutchfield has them available any more though. They've already replaced them with the 63.9i series. But you may find them for a great discount price elsewhere. I only paid $70 for them. They also have a +3DB control. The Infinity Components that Jma has are very nice too.