The JBL GX600C takes you on a musical journey. This car speaker system consists of 2 woofers and 2 tweeters. You have more control over the layout of your speaker system because the woofers and tweeters are separated from each other. Mount the woofers in your car doors or rear shelf, and enjoy the powerful bass and treble. The tweeter, for singing and high notes, can be placed with flat or tilted mounting brackets. You can adjust the sound of these drivers to your taste with the included crossover casing.