Materials of constructionandmiddot Kapton coil former for increased rigidity and thermal protectionandmiddot Polyamide-imide coated two-layer copper voice coil for improved power-handling and durabilityandmiddot Ferrite magnet andmiddot Vented core for increased power handlingandmiddot Premium pressed steel basket for maximum strengthandmiddot Paper cone andmiddot Rolled cloth cone edgeandmiddot Solid composition paper dust cap Ideal for midrange in three-way systems and small background sound systems.