Bose EdgeMax EM90
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Bose EdgeMax EM90

The EdgeMax EM90 is a two-way, 8-inch in-ceiling loudspeaker with a 70/100V transformer, built for mounting near wall-ceiling boundaries. It suits installers fitting commercial spaces such as shops, restaurants, hospitality venues and houses of worship.

  • 8-inch woofer plus compression driver, 2-way passive design
  • 70/100V transformer; 8 Ω with transformer bypassed
  • Nominal coverage 90° horizontal, 75° vertical
  • 125 W long-term power handling (500 W peak)
  • Magnetic grille and auto-hold spring-loaded mounting arms
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Beschrijving

The EM90 is a premium in-ceiling loudspeaker that uses a PhaseGuide waveguide with a high-frequency compression driver. Its asymmetrical vertical pattern lets it cover a room when placed near the point where wall and ceiling meet. This allows fewer units per room than conventional dome-tweeter ceiling speakers and avoids centre-ceiling or wall-mounted cabinets in design-sensitive interiors.

The woofer is 8 inches and gains extra bass from the nearby wall boundary. A 2-way passive crossover is paired with a 70/100V transformer, which can be bypassed for 8 Ω operation. Nominal coverage is 90° horizontal and 75° vertical, so it is intended for placement close to room corners.

Installation uses spring-loaded mounting arms that hold automatically. A magnetically attached grille gives quick access to the wiring and tap settings. The unit carries UL1480A listing for installation in air-handling (plenum) spaces. Rough-in pans and a black grille are available as accessories.

Video

Specificaties

Merk
Bose
Model
EdgeMax EM90
Categorie
Live geluid › PA-speakers

Audio

Frequency response (±3 dB)
50 Hz - 18 kHz
Frequency range (-10 dB)
45 Hz - 20 kHz
Nominal dispersion
75° vertical, 90° horizontal
Sensitivity (SPL / 1 W @ 1 m)
96 dB SPL
Maximum SPL @ 1 m
117 dB SPL (123 dB SPL peak)
Crossover
2-way passive

Transducers

Woofer
1 x 8-inch
High-frequency driver
1 x compression driver
Waveguide technology
PhaseGuide

Power

Long-term power handling
125 W (500 W peak)
Nominal impedance
8 Ω (transformer bypassed)
Transformer
70/100V

Physical

Mounting
In-ceiling, auto-hold spring-loaded mounting arms
Grille
Magnetically attached
Colour
White
Product code
778844-0220

Compliance

Plenum rating
UL1480A listed for air-handling (plenum) spaces

Accessories

Rough-in pan
For EdgeMax EM90/EM180 (pair)
Black grille
For EdgeMax EM90/EM180

Gegevens: archive.org; foto’s: Bose product page (Wayback copy) · bijgewerkt 2026-10-16 · Een fout gevonden? Schrijf ons