SPECIFICALLY ENGINEERED FOR FIXED INDOOR INSTALLATIONS
With its discreet and unobtrusive design SIGMA-18B features the latest proprietary Wharfedale Pro driver technology. In addition, SIGMA-18B uses a newly developed angled corner port system so that the dimensions have been reduced without compromising the overall sound quality. Available in black or white SIGMA-18B and the new SIGMA SERIES is already a versatile and favourite choice for installers.
Key Features
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| Model | SIGMA-18B |
| System Type | Passive |
| Configuration | Subwoofer |
| Frequency Response (+/-3dB) | 35Hz-250HZ |
| Frequency Range (-10 dB) | 40Hz-250HZ |
| Sensitivity (2.83v/1m) | 100dB |
| Calculated Maximum SPL @1m | 133dB |
| System Rated Impedance | 8Ω |
| Low Frequency Transducer | 457mm / 18'' |
| Size | 64mm / 2.5'' |
| Voice-Coil Size | 64mm / 2.5'' |
| Rated Impedance | 8Ω |
| LF Power (re:AES2-2012) | 350W |
| Power | |
| System Continuous Power | 500W |
| System Programme Power | 1000W |
| System Peak Power | 2000W |
| Crossover frequency | 2.2kHz |
| Input Connector | 2 x NL4 (speakON compatible) |
| Hardware | 35mm pole socket 4 handles on sides |
| Enclosure | |
| Enclosure Material | 18mm MDF |
| Finish | Black or white |
| Grille Material & Finish | 1.2mm steel, painted |
| Dimensions - Unpacked | |
| Height | 554mm / 21.25" |
| Width Front | 502mm / 20" |
| Width Rear | 502mm / 20" |
| Depth | 780mm / 30.8" |
| Dimensions - Packed | |
| Height | 649mm / 25.5" |
| Width Front | 588mm / 22.75" |
| Width Rear | 588mm / 22.75" |
| Depth | 865mm / 34" |
| Weight | |
| Net Weight | 39.1kg / 86lbs |
| Gross Weight | 46.4kg / 102lbs |
