Vented cast-aluminum woofer baskets dissipate heat effectively to play louder without power compression- Separate woofer and tweeter modules with high-quality external passive crossovers featuring wire-wound resistors, polypropylene caps and tweeter level and phase controls to fine-tune system response for the acoustics of your vehicle and personal taste (MS-62C and MS-52C)- Woofer phase plug for smooth, uniform off-axis response from the midrange. Provides smooth system response in the crossover region between the midrange and tweeter (MS-62C and MS-52C)- Subwoofers optimized for use in sealed and vented enclosures- Spring-loaded push terminals for use with a variety of wire gauges- Vented magnetic covers with JBL logo badges
