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12FW76

LF Drivers 12.0 inches

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Continuous power handling
Voice coil diameter
Magnet material
 
 
 
 

Features

  • 1000 W continuous program power capacity
  • 76 mm (3 in) copper voice coil
  • 55 - 3000 Hz response
  • 99 dB sensitivity
  • Aluminium demodulating ring allows a very low distortion figure

Specifications

  • Nominal Diameter320 mm (12.0 in)
  • Nominal Impedance4 Ω
  • Minimum Impedance4.2 Ω
  • Nominal Power Handling1500 W
  • Continuous Power Handling21000 W
  • Sensitivity399.0 dB
  • Frequency Range55 - 3000 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 Density1.35 T

Design

  • Surround ShapeTriple Roll
  • Cone ShapeExponential
  • Magnet MaterialFerrite
  • SpiderSingle
  • Pole DesignT-Pole
  • Woofer Cone TreatmentWP Waterproof Front Side
  • Recommended Enclosure40.0 dm3 (1.41 ft3)
  • Recommended Tuning65 Hz

Parameters4

  • Resonance Frequency54 Hz
  • Re3.1 Ω
  • Qes0.17
  • Qms4.2
  • Qts0.18
  • Vas48.5 dm3 (1.71 ft3)
  • Sd522.0 cm2 (80.91 in2)
  • η₀4.15 %
  • Xmax7.0 mm
  • Xvar8.5 mm
  • Mms69.5 g
  • Bl20.4 Txm
  • Le1.0 mH
  • EBP317 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 (5.79 in)
  • Flange and Gasket Thickness12 mm (0.47 in)
  • Air Volume Occupied by Driver3.0 dm3 (0.1 ft3)
  • Net Weight8.5 kg (18.7 lb)
  • Shipping Units1
  • Shipping Weight9.4 kg (20.72 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 ohm Nominal Impedance
  • Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.
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