ManS..i was a audio freak b4 i got into "making a car go faster" and i still am....not all speakers are created equal...you want good quality sound the Infinity are good...but the best Components system (my opinion)are MB Quarts...thet are WAY PRICEY but you will not be DISSAPOINTED!!!! i'd tried most (not all) of all the brand there is and MB Quart is the BEST!!!....polk, sony, and them other ones aren't just up to it yet...i have personal choices when it comes to a full system setup...like my system in my 240 now i mix and match...because see i like Rockford Fosfgate's sub but hey i hate there components and decks...some company are just better off with what they first made...