Boston Acoutstics make a simply amazing product. I have a set of 6 1/2 components and a set of 5 1/2 components in my car right now. The highs are so crisp and bright and the midrange screams. The only this is a little skimpy on the Ralley series components and coaxials (not on the pro series) is the low end reproduction. A little week on the bass. They make up for that with their subs. I had a pair of 12" Competitors and they were bangin'! Great spl and sq... lots of excursion. A few friends had the pro series... i dont think i've heard a louder sub pound for pound. The Tweeter truck has two of the 12's in the cab and 6 15" JL W3's in the flat bed. The guy that I know who worked on it said that just bangin around they use the JL's, but for competitions, the 2 12's kick the other's a**. Ya need to hear em to believe em. Hard to master b/c the subs are really sensitive to power level, but when done right... awesome. Anyway, if you can get em, I wouldn't hesistate. Peace.//content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif