WOW, multiple 6X8's in the doors...
Look, I won't bash on anyone else's tastes, but it's just that, personal taste. I personally would like to preserve as much of my hearing as possible. I prefer a nice, smooth, accurate sound. If you've ever hear any of the home speakers I mentioned, you'll know what I mean.
They're 6.5" comps, btw. But break in is one of those gray areas that has never really been proven to chand sound quality. In acuality, youre just getting used to how they sound. Or in the case of these happas, going deaf.
Since I got them on a warrenty at ultimate I'll try to see if I can just get my money back outright and get something I like. I will give them credit, though, they are built fairly well and so handle power. I put in some earplugs (I wear earplugs a lot) and cranked them up a little. I heard no distress. Earplugs are the way to go to catch stuff like that, your ears don't get overwelmed and you can make out things like clipping tweets and bottoming woofers.