The Stage1 Series speakers brings a JBL concert experience to your car, truck or SUV and a surprisingly affordable price. Their Polypropylene woofer delivers a strong performance with great low end extension and clean tight midrange. The woofer is couple with a Mylar Balanced dome tweeter which fills out their sonic signature with crisp, high-end frequencies. Legendary JBL sound for less than the cost of a concert ticket. Features and Benefits JBL Design Language - We now have a design language which alludes to other products in the JBL's expansive porfoloio, showcased though the boldhorned logo desn emblazoned across the wteetr bridge.  Injection-molded Polypropylene Cone - The polyprolene woofer cone in the Stage1 speakers is engineered for superior rigidity and sensitivity. The result is increased low-frequency output and richer, more robust musical character.  Rigid Reliabilty Testing - Stage1 speakers have to go through environmental testing that would destroy other speakers. JBL