Bose (777189-0210) EdgeMax EM180 In-Ceiling Loudspeaker Powder-coated finish, black color

with high frequency compression drivers Bose Professional EdgeMax™ in-ceiling premium loudspeakers feature proprietary Bose PhaseGuide® technology and high-frequency compression drivers that combine room filling sound with the style of in-ceiling models. Speakers mount near wall-ceiling boundaries to provide improved audio quality and coverage with fewer units. Features: PhaseGuide technology provides unique asymmetrical vertical pattern for room-filling coverage when mounting near wall-ceiling boundary Provides improved visual appearance in rooms by eliminating center-of-ceiling or wall-mounted loudspeakers Nominal 180° horizontal coverage for in-ceiling mounting near room corners High-frequency compression driver for best-in-class audio quality with superior frequency response and consistent coverage 8-inch woofer with wall-boundary loading provides extended bass impact 2-way passive crossover with 70/100V transformer Auto-hold, spring-loaded mounting arms for easy installs Magnetically attached grill for quick access to wiring and tap settings UL1480A listing for air-handling (plenum) space installation