I used to be BIG in to car systems and use to make box's for peoples cars/wire systems/install speakers and cd players. JL audio has ALWAYS had a good name and very clear sounds. When they came out with there amps i had a bunch of my friends go out and get them. All of them now run JL amps along with either JL speakers or Alpine. I used to own to JL W6 10's that i had in my 90 TT and i loved them. I belive JL bought out PPI witch was a REALLY good company so if its anything to you. JL is REALLY good go with them. thats my plan