The ID60D-8 and ID60DT are heavy-duty compression drivers for use in high-power public address installations.The drivers employ rugged phenolic diaphragms, 2-inchdiameter voice coils and "rim centered" ferrite magnet structures for long life and reliability under extreme operating conditions.A hinged cycolac rear housing for easy access and connection to a sound system, via a BX conduit connector, is provided together with a plug-in, field replaceable diaphragm assembly.The transformer model (ID60DT) includes connections for 25-V and 70-V distributed systems and a screw driver operated power-tap select switch. The exterior is finished in durable, weatherproof paint, and all metal parts have been tropicalized for resistance to high humidity and fungus.Ideal for both indoor and outdoor applications, these drivers are well suited for any installation requiring rugged, high-power performance.