Super resistant to extreme temperature and vibration!
PEI (poly-ether imide) midrange and tweeter cones for amazing clarity
Heavy-duty strontium magnets and rolled butyl rubber edge
Unique bronze-metallic-color injection-molded aramid composite olefin woofer cone for sound quality and deep bass reproduction impossible with conventional woofer cones! Metallic-color grilles. 4-ohms. Sold in pairs.