NWB-3 / NWB-5 / NWB-8

Of 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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Of 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°
Protection Rate   IP55 IP55 IP55
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
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”
Weight   2.1 kg (4.63 lbs) 3.1 kg (6.83lbs) 6.4 kg (14.1 lbs)
 

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