I have $400-$500 to spend on a comp set and an amp. I've listened to a few sets locally (infinity,diamond,focal) I wasn't that impressed. However I have been researching on several car audio forums and have heard good thinks about hertz, cdt, mbquart, pgrsd and a few others. I can't say I'm more focused on sq or spl cause I like them both, want to feel it in my chest and hear the music loud and clear. If you can reccommend an amp with your choice that would be awesome. What is all the hype about the pg rsd? Is it because of the price or actual quality?