EM90 天花板嵌入揚聲器

SINGLE MODULE PERFORMANCE

Frequency Response (-3 dB) (1)

50 – 18,000 Hz

Frequency Range (-10 dB)

45 – 20,000 Hz

Nominal Coverage Pattern

90° H x asymetrical 75° V (0° to 75° referenced to wall)

Bose extended-lifecycle test (4)

AES transducer test (5)

Power Handling, long-term continuous

125 W

150 W

Power Handling, peak

500 W

600 W

Sensitivity (SPL/ 1W @ 1 m) (2)

96 dB

96 dB

Calculated Maximum SPL @ 1 m (3)

117 dB

118 dB

Calculated Maximum SPL @ 1 m, peak

123 dB

124 dB

Crossover

1.0 kHz (passive 2-way crossover with integrated 70/100V transformer)

Loudspeaker EQ

Recommended but not required

Recommended high-pass protection

55 Hz with minimum 12-dB / octave filter

Overload protection

Resistor-network power reduction with automatic reset

Transformer taps

70V: 2.5, 5, 10, 20, 40, 80 W, bypass / 100V: 5, 10, 20, 40, 80 W, bypass

TRANSDUCERS

Low Frequency

1x 8-inch woofer (1.5-inch voice coil)

High Frequency

1x compression driver (1.3-inch voice coil)

Nominal Impedance

8 ohms (transformer bypass)

PHYSICAL

Enclosure Material

Engineered-plastics front baffle with integrated steel formed enclosure

Grille

Micro perforated steel, powder-coated finish, white: RAL 9010, paintable

Environmental

Indoor only; UL-1480A listed, in compliance with UL2043 for plenum-space installation

Connectors

Euro block 6-pin connector with loop-through, front-baffle mounted

Suspension / mounting

Four (4) auto-hold, spring-loaded mounting arms plus four (4) M6 safety cable tabs

Maximum ceiling thickness

80 mm (3.2”)

Dimensions (H x W x D)

339 x 339 x 249 mm (13.4” L x 13.4” W x 9.8” D) enclosure

390 x 390 x 13 mm (15.4” L x 15.4” W x 0.5” D) grille flange, as mounted

Ceiling cutout and clearance

345 x 345mm (13.6” L x 13.6” W) with 236 mm (9.3”) mounting depth

Net Weight

10.1 kg (22.2 lbs) with grille

Shipping Weight

12.5 kg (29 lbs)

Accessories

Adjustable Tile Bridge (Included), Black grille, rough-in pan for new construction