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6. FREQUENCY RESPONSE (1 W, 4 m)
Single Speaker
7. SPECIFICATIONS
Model
Standards
Environment Type
Rated Noise Power
Rated Impedance
Sensitivity
S.P.L.
Frequency Response
Coverage Angle (–6 dB) Horizontal: 200° (500 Hz), 160° (1 kHz), 150° (2 kHz), 90° (4 kHz)
Speaker Component
Operating Temperature -10°C .... + 55°C
Cable Connection
Applicable Cable Size
Finish Baffle
Cabinet
Dimensions
Weight
IP Grade
Notes
The design and specifications are subject to change without notice for improvement.
The Specifications data was measured in an anechoic chamber, according to EN 54-24.
Reference axis: Axis is on the center of grill surface and perpendicular to the grill surface.
Reference plane: Plane is on the grill surface and perpendicular to the reference axis.
Horizontal plane: Plane is containing the reference axis and perpendicular to the reference plane.
BS-250AB-EB
Certified to the European Standard EN 54-24: 2008
BS-678BSW
Loudspeaker for voice alarm systems
for fire detection and fire alarm systems
In compliance with the British Standard BS-5839-8: 2008
Type A
2x 6 W (100 V line)
100 V line: 1.67 kOhm (6 W), 3.33 kOhm (3 W), 6.67 kOhm (1.5 W)
79 dB (1 W, 4 m, 100 Hz to 10 kHz pink noise)
86 dB (at rated noise power, 4 m)
150 Hz – 20 kHz (–10 dB from sensitivity)
Vertical: 200° (500 Hz), 170° (1 kHz), 150° (2 kHz), 80° (4 kHz)
2 x 10 cm (4") cone speaker
Screw terminal (ceramic)
Conductor size : 0.8 – 2.5 mm
Steel, white
Fire resistant ABS resin, white
254.5 (H) x 204.5 (W) x 87.5 (D) mm
1.75 kg (3.86 lb)
IP 32
Double Speaker
2
(cross section)
EN 54-24 Certificate
1488/CPD/0336/W
5
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