The Z4CXi 4 Inch Coaxial speakers feature flush profile tweeters and a compact basket design for easy installation. High quality polypropylene cone material for great sounding audio. Quality butyl rubber surround for excellent durability and prolonged performance. The Z4CX also feature Ferrofluid tweeters which enable enhanced thermal contact for increased reliability and optimum damping for the voice coils. Z4CXi Product features: - Flush profile tweeters and a compact basket design for easy installation - High quality polypropylene cone material for great sounding audio - Quality butyl rubber surround for excellent durability and prolonged performance - Ferrofluid tweeters enable enhanced thermal contact for increased reliability and optimum damping for the voice coils Why .
eBay