Ok, here's a little more info. They are DVC, impedence is 4 ohms mono.

I'd like to set an amp budget at a couple hundred dollars, give or take a hundred I've definitely heard good things about DEI and PPI. So Kicker would also be good?

Hmm, I've been researching that JBL BP600.1 and I'm quite impressed. It seems like the biggest problem most people have is that it gets quite hot. This could be a concern for me, as I drive close to 2 hours a day, but since it's only 45 minutes at a time, I don't think it's too big of an issue.

Do you JBL owners have anything to add to that?