Hard to go wrong with Dyn, they make a fine product and have for some time. Hertz Legends are pretty good too, plenty of satisfied customers.
A good installation, solid baffles, decent placement of drivers and tuning will make as much difference as the name/amount spent on gear too though in many cases.
And a 3 way can be a hard place to start for the average laymen. You may be disappointed with the sound of a $1400 set of speakers in a bad installation with no tuning, cars are a hell of a place to get good sound without often spending a lot of time or money.