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NWB-3 / NWB-5 / NWB-8

Off modern design and high quality sound, the NWB Series includes a comprehensive range of 3 models that are available in either black or white.

  • 2-way
  • 3.5”, 5” or 8” woofer
  • 20 – 40 – 80W
  • EN 54-24

 

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Off modern design and high quality sound, the NWB Series includes a comprehensive range of 3 models that are available in either black or white. The speakers are equipped with 3.5”, 5” or 8” woofer plus 1” dome tweeter. The power ranges from 20W to 80W. Transformer are available for both 70V and 100V applications. NWB Series is IP55 rated and EN 54-24 certified.
MODEL   NWB-3 NWB-5 NWB-8
System type 2-Way Passive Speaker Cabinet
Standard Certified to the European Standard EN 54-24 /2008
Loudspeaker for voice alarm systems for fire detection and fire alarm system
Environment Type Type B (Outdoor applications)
Transducer  LF 3.5" ferrite woofer 5" ferrite woofer 8" ferrite woofer
1.0” voice coil 1.0” voice coil 1.2” voice coil
Transducer HF 0.8" Neodymium tweeter 1" Neodymium Tweeter 1" Neodymium Tweeter
Rated Noise Power 20W 40W 80W
(100V and 70V line) (100V and 70V line) (100V and 70V line)
Rated Impedance (100V line) 500Ω (20W) 250Ω (40W) 125Ω (80W)
1.0kΩ (10W) 500Ω (20W) 250Ω (40W)
2.0kΩ (5W) 1.0kΩ (10W) 500Ω (20W)
4.0kΩ (2.5W) 2.0kΩ (5W) 1.0kΩ (10W)
-
(70V line) 250Ω (20W) 122Ω (40W) 62Ω (80W)
500Ω (10W) 250Ω (20W) 125Ω (40W)
1.0kΩ (5W) 500Ω (10W) 250Ω (20W)
2.0kΩ (2.5W) 1.0kΩ (5W) 500Ω (10W)
-
(Bypass) 8 Ω 8 Ω 8 Ω
Sensitivity (500Hz-5kHz pink noise) 85dB (1W, 1m) 85dB (1W, 1m) 87dB (1W, 1m)
(100Hz-10kHz pink noise, according to EN54-24) 73dB (1W, 4m) 73dB (1W, 4m) 75dB (1W, 4m)
(100Hz-10kHz pink noise, converted based on EN54-24) 83dB (1W, 1m) 85dB (1W, 1m) 87dB (1W, 1m)
Max SPL (100Hz-10kHz pink noise, according to EN54-24) 83dB (20W, 4m) 87dB (40W, 4m) 92dB (80W, 4m)
(100Hz-10kHz pink noise, converted based on EN54-24) 95dB (20W, 1m) 97dB (40W, 1m) 105dB (80W, 1m)
Coverage Angle (H x V) (500Hz) 360° x 360° 360° x 360° 162° x 140°
(1kHz) 162° x 202° 188° x 140° 114° x 123°
(2kHz) 86° x 128° 92° x 58° 171° x 52°
(4kHz) 157° x 151° 128° x 165° 131° x 97°
Weight 2.1 kg (4.63 lbs) 3.1 kg (6.83lbs) 6.4 kg (14.1 lbs)
Dimensions (L x W x D) 220 x 134 x 136 mm 278 x 170 x 172 mm 406 x 250 x 251 mm
8.6” x 5.3” x 5.4” 10.9” x 6.7” x 6.8” 16” x 9.8” x 10”
Protection Rate IP55 IP55 IP55
Operating Temperature -10°C to +50°C
Applicable Cable Solid wire: Ø 6.6mm (18 AWG) UL2464
Cable Connection Steatite terminal x 2 speaker cable (Ø 6.6mm)
Finish Enclosure : ABS + PC
Mesh speaker grill : surface-treated steel plate
Speaker Wall bracket: surface-treated steel plate, painted joint bracket,
screw and stainless steel cable

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