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The NWB speaker range is a complete line of 3 models NWB-3, NWB-5, NWB-8 which have a modern design and high quality sound. They are available in black or white and are suitable for indoor and outdoor use, as they have IP55 protection. They are certified according to the European standard EN 54-24 / 2008 for public address systems for fire detection and message transmission. With their two-band design and large frequency range, they are suitable for music transmission. The speakers are equipped with a 3.5-inch or 5-inch or 8-inch woofer and a 0.8-inch or 1-inch dome tweeter with a neodymium magnet. Power ranges from 20W to 80W. Transformers are available for 70V and 100V applications, or the speaker can be connected by bypassing the transformer (Bypass), then it has an impedance of 8 Ω. The rotary switch on the back of the speaker can be used to select the transformer taps and thus reduce the volume (power) of the speaker. Mounting is done using a bracket on the wall or under the ceiling, or on a tripod, or using an articulated bracket with wall mounting with the possibility of turning in the required direction.
1 pc = 1 pair of speakers Can only be ordered in pairs.
Features list NWB-5 :
- NWB-5 speaker model for indoor and outdoor radio - dual-band system with high sound quality and 40W power - mounting on a bracket under the ceiling or on the wall, or on a tripod (mast) - fire resistance certification for evacuation radio
Technical parameters :
- type of system: two-way speaker, hanging on the wall, ceiling, etc. - for environment: outdoor (type B), protection IP55 - standardized: European standard EN 54-24 / 2008 - bass audio converter: 5" subwoofer with ferrite magnet and ø1" coil - tweeter: 1" tweeter with neodymium magnet - frequency range: 80Hz - 20kHz - rated noise power: 40 W - nominal impedance (100V line): 250 Ω (40W) - nominal impedance (100V line): 500 Ω (20W) - nominal impedance (100V line): 1.0 kΩ (10W) - nominal impedance (100V line): 2.0 kΩ (5 W) - nominal impedance (70V line): 122 Ω (40 W) - nominal impedance (70V line): 250 Ω (20W) - nominal impedance (70V line): 500 Ω (10W) - nominal impedance (70V line): 1.0 kΩ (5 W) - nominal impedance (Bypass): 8 Ω - sensitivity (500 Hz - 5 kHz pink noise): 85 dB (1 W, 1 m) - sensitivity (100 Hz - 10 kHz pink noise EN54-24): 73 dB (1 W, 4 m) - sensitivity (100 Hz - 10 kHz pink noise, according to EN54-24): 85 dB (1 W, 1 m) - max. SPL (100 Hz - 10 kHz pink noise, according to EN54-24): 87 dB (40 W, 4 m) - max. SPL (100 Hz - 10 kHz pink noise, according to EN54-24): 97 dB (40 W, 1 m) - coverage angle (500 Hz): 360° x 360° - coverage angle (1kHz): 188° x 140° - coverage angle (2kHz): 92° x 58° - coverage angle (4kHz): 128° x 165° - operating temperature: -10°C to +50°C - product protection: IP55 - connecting cable, solid conductor: 0.75 mm² (18 AWG) UL2464, outer cable ø 6.6mm - cable connection: steatite cable x 2 speaker cable - surface finish of the cover: ABS + PC - fire protection: wall bracket made of surface-treated steel plate, lacquered connecting bracket, screw and cable made of stainless steel - Loudspeaker grille finish: Perforated perforated steel plate - weight: 3.1 kg - product dimensions: (L x W x D) 278 x 170 x 172 mm
Package contents :
- wall evacuation speaker NWB-5 - Czech and English instructions for use
Manufacturer: SEIKAKU Group - SHOW http://www.seikaku.hk/
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