One 6.5 inch polypropylene woofer and one 1.0 inch convex titanium tweeter with FerroFluid cooling mounted to a proprietary cast-aluminum baffle and heat sink. Includes UL-listed hanging hardware with 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 six-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 88.5 dB offers high-output capabilities and reduced amplification costs. UL 1480 (UEAY) 2239 (hanging cable) and Mil-Spec 810 approved.