Bose EdgeMax In-Ceiling Loudspeaker EM90

Bose Professional EdgeMax in-ceiling premium loudspeakers feature proprietary Bose PhaseGuide technology with high-frequency compression drivers to create a new category that combines the room-filling coverage patterns typical of larger surface-mount speakers with the architect-preferred aesthetics of in-ceiling models. Designed to mount near wall-ceiling boundaries, EdgeMax loudspeakers provide improved audio quality and coverage, while reducing the number of required units, compared to conventional dome-tweeter ceiling speakers. FEATURES PhaseGuide technology – provides unique asymmetrical vertical pattern for room-filling coverage when mounting near 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 Technical Summary Frequency Response ( /-3 dB) 50 Hz – 18 kHz Frequency Range (-10 dB) 45 Hz – 20 kHz Nominal Dispersion 75° Vertical 90° Horizontal Long-Term Power Handling 125 W (500 W peak) Sensitivity (SPL / 1 W @ 1 m) 96 dB SPL Maximum SPL @ 1 m 117 dB SPL (123 dB SPL peak) Transducers 1 x 8-inch woofer 1 x compression driver Nominal Impedance 8 Ω (transformer bypassed) EdgeMax Comparison Chart EM90 / EM180 EM90-LP / EM180-LP Horizontal coverage 90° / 180° 90° / 180° Vertical coverage 75° asymmetrical 80° asymmetrical Backcan height 24 cm (9 in) 10 cm (4 in) Weight 10 kg (22 lb) 7.5 kg (16.5 lb) Recommended ceiling height 2.7–6.1 m (9–20 ft) or higher 2.4–3.7 m (8–12 ft) Recommended applications High-SPL applications, like: Bars & restaurants Fitness clubs Hospitality Houses of worship Performance spaces Commercial spaces Lower-SPL / background music applications, like: Conference rooms, halls, atriums & cafeterias Hospitality spaces with low ceiling clearance Restaurants Retail Retrofits with unknown ceiling clearance