EdgeMax EM90 loudspeaker

EdgeMax EM90 loudspeaker

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Current Price


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.


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


  • Retail stores
  • Restaurants and bars
  • Concourse
  • Transportation facilities
  • Resorts and hospitality venues
  • Houses of worship
  • Conferencing


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)

1 x 8-inch woofer
1 x compression driver

Nominal Impedance
8 Ω (transformer bypassed)


Mechanical Diagrams

Front View

Rear View

Side View

Front View (Grille Removed)

Bottom View

Top View

Product Codes



EdgeMax Tile
EdgeMax Tile
Rough-in pan for EdgeMax EM90/EM180 loudspeakers (pair)
Rough-in pan for EdgeMax EM90/EM180 loudspeakers (pair)
Black grille for EdgeMax EM90/EM180 loudspeakers
Black grille for EdgeMax EM90/EM180 loudspeakers