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20_51_22_469_12nw76_0020_51_27_281_file
Continuous power handling
Voice coil diameter
Magnet material
 
 
 
 

Features

  • 1000 W continuous program power capacity
  • 76 mm (3 in) copper voice coil
  • 40 - 2000 Hz response
  • 98 dB sensitivity
  • Neodymium ring magnet assembly
  • Aluminium demodulating ring allows a very low distortion figure
  • Ventilated voice coil gap for reduced power compression

Specifications

  • Nominal Diameter320 mm (12.0 in)
  • Nominal Impedance4 Ω
  • Minimum Impedance4.6 Ω
  • Nominal Power Handling1500 W
  • Continuous power handling21000 W
  • Sensitivity (1W/1m)398.0 dB
  • Frequency Range40 - 2000 Hz
  • Voice Coil Diameter76 mm (3.0 in)
  • Winding MaterialCopper
  • Former MaterialGlass Fibre
  • Winding Depth19.0 mm (0.75 in)
  • Magnetic Gap Depth11.0 mm (0.43 in)
  • Flux Density1.3 T

Design

  • Surround ShapeTriple Roll
  • Cone ShapeExponential
  • Magnet MaterialNeodymium Ring
  • SpiderSingle
  • Pole DesignT-Pole
  • Woofer Cone TreatmentTWP Waterproof Both Sides
  • Recommended Enclosure50.0 dm3 (1.77 ft3)
  • Recommended Tuning60 Hz

Parameters4

  • Resonance Frequency43 Hz
  • Re3.4 Ω
  • Qes0.15
  • Qms3.75
  • Qts0.15
  • Vas64.5 dm3 (2.28 ft3)
  • Sd522.0 cm2 (80.9 in2)
  • η₀3.2 %
  • Xmax± 8.0 mm
  • Xvar± 10.0 mm
  • Mms82.0 g
  • Bl22.0 Txm
  • Le1.1 mH
  • EBP286 Hz

Mounting and Shipping Info

  • Overall Diameter315 mm (12.4 in)
  • Bolt Circle Diameter298 mm (11.7 in)
  • Baffle Cutout Diameter283.0 mm (11.1 in)
  • Depth147 mm (5.8 in)
  • Flange and Gasket Thickness14 mm (0.55 in)
  • Air Volume Occupied by Driver2.5 dm3 (0.08 ft3)
  • Net Weight4.9 kg (10.8 lb)
  • Shipping Units1
  • Shipping Weight5.8 kg (12.79 lb)
  • Shipping Box360x360x200 mm (14.17x14.17x7.87 in)

Service Kit

  • 2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated minumum impedance. Loudspeaker in free air.
  • Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
  • Applied RMS Voltage is set to 2V for 4 ohms Nominal Impedance.
  • Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.