
Bose EdgeMax EM90 In-Ceiling Premium Loudspeaker White (778844-0220)
Bose EdgeMax EM90 In-Ceiling Premium Loudspeaker White (778844-0220) Bose Professional EdgeMax in-ceiling premium loudspeakers integrate proprietary Bose PhaseGuide technology alongside high-frequency compression drivers, revolutionizing a new realm that unites the expansive coverage usually found in larger surface-mount speakers with the coveted aesthetics of in-ceiling models favored by architects. Tailored for mounting near wall-ceiling intersections, EdgeMax loudspeakers offer superior audio quality and broader coverage. What sets them apart is their efficiency—delivering enhanced sound with fewer units needed, unlike traditional dome-tweeter ceiling speakers. Experience advanced audio with EdgeMax—where cutting-edge technology meets architectural finesse! FEATURES PhaseGuide technology – provides a unique asymmetrical vertical pattern for room-filling coverage when mounting near a wall-ceiling boundary Provides improved room visual appearance – for demanding interior designs by eliminating center-of-ceiling or wall-mounted loudspeakers Nominal 90° horizontal coverage – designed for in-ceiling mounting near room corners High-frequency compression driver – for best-in-class audio quality with superior frequency response and coverage consistency versus typical dome tweeters 8-inch woofer – with wall-boundary loading provides extended bass impact 2-way passive crossover with 70/100V transformer New auto-hold, spring-loaded mounting arms – for fast, easy installs Magnetically attached grill – for quick access to wiring and tap settings UL1480A listing – for air-handling (plenum) space installation Specifications Frequency Response (+/-3 dB)50 Hz - 18 kHz Frequency Range (-10 dB)45 Hz - 20 kHz Nominal Dispersion75° Vertical90° Horizontal Long-Term Power Handling125 W (500 W peak) Sensitivity (SPL / 1 W @ 1 m)96 dB SPL Maximum SPL @ 1 m117 dB SPL (123 dB SPL peak) Transducers1 x 8-inch woofer1 x compression driver Nominal Impedance8 Ω (transformer bypassed)