I installed some Boston Proseries 6.5 components in the factory front door locations. The interesting thing about these speakers is that they may be mounted as separates or coaxials. I mounted them coaxially. The sound from the tweeters is not blocked by your legs in the contique as the sound is in some cars. They sound pretty good. They're a little bass deficient. I will take care of this when I get my Infinity Beta 15 sub installed.