One 4.0 inch (102 mm) polypropylene woofer and one 1.0 inch (25 mm) convex titanium tweeter with FerroFluid cooling. Includes UL listed hanging hardware with adjustable galvanized steel cables and integrated SpeedClamp™ self-locking cable grip for fast, easy and secure installation. Also includes Euroblock connector and terminal weather boot. Patented ZeroReflection™ enclosure technology for optimal sound reproduction and cabinet rigidity. Easy access five-position selectable tap switch for 25-, 70.7- and 100-volt applications with transformer bypass position simplifies ordering and inventory tracking. Steel grille with protective powder-coated finish for lasting durability. Average sensitivity of 82.5 dB offers high-output capabilities and reduced amplification costs. UL 1480 (UEAY) approved.