The JBL ARENA is a passive 2-way automotive system in our ARENA series.The Arena includes a 25mm beryllium tweeter in a slim factory fitting housing. The powerful all-new tweeter is designed to integrate with the directivity of the companion midrange drivers resulting in greater efficiency, improved dynamic range, reduced distortion, and increased power handling compared to aluminum or titanium tweeters. Beryllium - Element 4 on the Periodic Table - is a rare earth metal that is renowned for its remarkable physical properties that make it the ideal material for a high-frequency transducer. Compared to aluminum and titanium tweeter diaphragms, Beryllium offers 4.5 times the stiffness and three times more damping, and does so at only half of the weight. Beryllium tweeters are the centerpiece of the ARENA automotive loudspeaker series. The Arena 2way passive crossover networks utilize all film capacitors and air core inductors in the midrange and tweeter circuits. These premium components allow JBL’s world-class engineers to extract nuances and details from music that would otherwise be lost. Combined with traditional JBL high-order crossover slopes and proprietary transducer integration is seamless. The 6.5-inch (165mm) aluminum basket woofers utilize woven carbon fiber cones for improved performance. The stiff lightweight cones combine with optimized motor magnetics to deliver improved mid- and low-frequency performance and Specially formulated acoustic adhesive chosen to provide superior strength and sound quality.