Key Features

  • Discreet and unobtrusive design
  • Newly developed angled corner port system to reduce dimensions
  • Multiple M8 rigging points and a two way speaker pole mount for easy installation
  • Crossovers tailored for vocal intelligibility
  • Chip resistant Rhino Rock paint
  • Double roll surround LF driver for stability and power
  • High performance HF driver with aluminium rear cover for maximum heat dissipation
  • 2.5” voice coils on 12”, 15” and 18B models
  • 7 SIGMA series models available in black or white in the range for maximum flexibility.

With their discreet and unobtrusive design the SIGMA SERIES feature the latest proprietary Wharfedale Pro driver technology. In addition, SIGMA SERIES use 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 and with comprehensive rigging options the new SIGMA SERIES is already a versatile and favourite choice for installers.
SIGMA Series loudspeakers use the latest in Wharfedale Pro driver technology: For the LF drivers, engineers have incorporated a curvilinear, double-roll surround for smooth mid-high transitions and stability for low through to mid range frequencies. Combined with 2.5” voice coils (on 12, 15 and 18B models) for improved thermal dissipation, users can expect consistent delivery at the highest of volumes throughout a performance. The 44mm diaphragm HF driver used in the 10", 12" and 15" models is equally robust in design – using a solid aluminum rear plate, the HF driver is strengthened for durability and heat is dissipated efficiently for demanding environments. Wharfedale Pro engineers have selected a 90° x 60° waveguide optimised for wide coverage for fixed installation purposes.
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 mounting 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. The cabinets of the SIGMA 10, 12 and 15 also feature dual-angle pole mount sockets ensuring the long-throw HF driver projects the sound directly to your audience. There are also 5 x M8 rigging points for safe and secure flying where needed. SIGMA Series is coated in the latest generation chip-resistant, Rhino Rock paint.
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. Engineers have fine-tuned the crossover points for vocal intelligibility and tuned the high frequencies for long-throw to ensure clear coverage right to the back of your venue.
Completing the SIGMA Series is the SIGMA V4 and SIGMA V8. Using true line array technology our SIGMA V4 / V8 column array is perfect for sound reinforcement installations where discreet aesthetics, high coverage angles and SPL are critical. SIGMA V4 and V8 are supplied with swivel/tilt mounting brackets which hold the V4 safely and securely. These discreet brackets make installation and fine positioning straight forward.