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” woofers plus 1” dome tweeter. The power ranges from 20W to 80W. Transformers are available for both 70V and 100V applications. NWB Series is IP55 rated and EN 54-24 certified.
Accessories, Speaker & Amplifier
NWB-3 Single Speaker
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Compare| 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) | 72dB (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 | |
| Operating Temperature | -10°C to +50°C | |||
| Applicable Cable | Solid wire: f 6.6mm (18 AWG) UL2464 | |||
| Cable Connection | Steatite terminal x 2 speaker cable (f 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 | ||||
| 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” | ||
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- 6 Mic & 2 Aux Inputs.
- Built-in MP3 player with remote control for USB, SD/MMC card reader.
- Preamplifier and Line Output for connecting to a Booster Amplifier and for recording the programme.
- Line Input for connecting the output from any external mixer or permitting SSA-250DP to be used as a Booster Power Amplifier.
- Resettable circuit breaker for protection against overload and short circuit.
- Instant transfer to DC power (Car Battery) if AC power fails.
- Box Speaker/Driver Unit selector switch. Bass boost defeated at Driver Unit position for safer operation of driver units.
- Warranty: 03 Month
SKU: MCTACSA0001
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