SIGMA-18B

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

  • 500W RMS / 1000W Program / 2000W Peak
  • 133dB Max SPL
  • 40Hz – 250Hz frequency response
  • Discreet and unobtrusive design
  • Newly developed angled corner port system to reduce dimensions
  • Chip resistant Rhino Rock paint
  • Double roll surround LF driver for stability and power
  • 2.5” voice coil
  • 5 models available in black or white in the range for maximum flexibility

 

  • 500W RMS / 1000W Program / 2000W Peak
  • 133dB Max SPL
  • 40Hz – 250Hz frequency response
  • Discreet and unobtrusive design
  • Newly developed angled corner port system to reduce dimensions
  • Chip resistant Rhino Rock paint
  • Double roll surround LF driver for stability and power
  • 2.5” voice coil
  • 5 models available in black or white in the range for maximum flexibility

 

DOUBLE ROLL SURROUND & DRIVER TECHNOLOGY
SIGMA 18B uses the latest in Wharfedale Pro driver technology: Engineers have incorporated a curvilinear, double-roll surround for stability and power. Combined with a 2.5” voice coil for improved thermal dissipation, users can expect consistent delivery at the highest of volumes throughout a performance.
ACOUSTICALLY MATCHED CABINET
Wharfedale Pro engineers have matched the acoustic properties of the cabinet to the proprietary driver technology within, while taking physical aspects into consideration to ensure optimal positioning and size for installation. By using a newly-developed angled-corner port system, cabinet height and overall size has been reduced – ideal for unobtrusive positioning within your venue. Additionally the angle-corner port system is fine-tuned acoustically to ensure low- end punch – just as you would expect with a larger PA speaker. SIGMA 18B is also coated in the latest generation chip-resistant, Rhino Rock paint.
FINE-TUNED CROSSOVER
The crossovers ensure perfect integration between the drive units and acoustic properties of the cabinet. Electronic components are carefully selected, while over-complex networks have been avoided to maintain a pure and strong audio signal. SIGMA 18B also features an NL4 (speakON compatible) High Pass Output connector allowing for direct connection to another model in the SIGMA series.

SPECIFICATIONS

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
Low Frequency Transducer 457mm / 18''
Size 64mm / 2.5''
Voice-Coil Size 64mm / 2.5''
Rated Impedance
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
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