
Specifications
Audio
Max SPL, Peak
125 dB free field @ 1 m, 127 dB wall/ceiling @ 1 m
General
EN 54-24
EN 54-24: 2008, Loudspeaker for Voice Alarm Systems for Fire Detection and Fire Alarm Systems for Buildings
Ingress Protection
IP55 per EN60529; IP33C per EN 54-24
Product Dimensions (H×W×D)
9.3" x 27.0" x 11.0" (235 mm × 686 mm × 279 mm), loudspeaker with input cover
Net Weight
37.5 lbs (17.0 kg), loudspeaker / 43.0 lbs (19.5 kg), loudspeaker with U-bracket
Shipping Weight
51.0 lbs (23.1 kg)
Frequency Range (-10 dB)
70 Hz – 18,000 Hz
Coverage, Horizontal
60°
Coverage, Vertical
90°
Calculated Maximum SPL @ 1 m
120 dB (free field), 122 dB (wall/ceiling)
Sensitivity (SPL/1 W at 1 m)
95 dB (free field), 97 dB (wall/ceiling)
Nominal Impedance
8 Ω (transformer bypass)
Power Handling, Long-Term Continuous
300 W
Power Handling, Peak
1200 W
Transformer Taps, 70V
5 W, 10 W, 20 W, 40 W, 80 W
Transformer Taps, 100V
10, 20, 40, 80 W
Low-Frequency
2 × Bose Professional LF8 high-excursion 8" (203 mm) woofer, 2" (51 mm) voice coil
High-Frequency
1 × Bose Professional EMB2S extended high-frequency compression driver, 2" (51 mm) voice coil
Crossover
200 Hz & 1.2 kHz, passive, separate bandpass filters per transducer
Enclosure Material
Exterior-grade plywood
Grille
3 layers (perforated stainless steel, acoustic foam, stainless-steel mesh), powder-coated finish
Suspension/Mounting
2 × M8 threaded inserts for U-bracket, 4 × M8 threaded inserts on rear (127 × 70 mm, 4-bolt pattern)
Included Accessories
(1) U-bracket, (4) M8 screws, (4) M4 screws, (1) input cover, (2) rubber washers, (1) T3 square drive, (1) installation guide
Frequency Response (+/-3 dB)
80Hz to 16kHz
Nominal Coverage Pattern (HxV)
90° x 60°
Peak
1200W
Why Choose SoundPro?
Since 1972, SoundPro has been the trusted source for audio, video, and lighting gear. Whether you're starting your AVL journey or are a seasoned professional, we're here to help you every step of the way.